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Weather Abbreviations > Weather Abbreviations > Flashcards

Weather Abbreviations Flashcards

1
Q

A

A

Altimeter setting proceeded by 4 numbers

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2
Q

A01

A

AUTOMATED OBSERVATION WITHOUT PRECIPITATION DISCRIMINATOR

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3
Q

A02

A

AUTOMATED OBSERVATION WITH PRECIPITATION DISCRIMINATOR

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4
Q

AAWF

A

AUXILIARY AVIATION WEATHER FACILITY

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5
Q

ACYC

A

ANTICYCLONIC

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6
Q

ADV

A

ADVISE

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7
Q

ADVCTN

A

ADVECTION

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8
Q

ADVY

A

ADVISORY

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9
Q

AFC

A

AREA FORECAST CENTRE

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10
Q

AFDK

A

AFTER DARK

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11
Q

ALF

A

ALOFT

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12
Q

ALSEC

A

ALL SECTORS

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13
Q

ALQDS

A

ALL QUADRANTS

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14
Q

ALWF

A

ACTUAL WIND FACTOR

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15
Q

AMD

A

AMENDED FORECASTS (TAF)

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16
Q

AMS

A

AIR MASS

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17
Q

ANLYS

A

ANALYSIS

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18
Q

ASOS

A

AUTOMATED SURFACE OBSERVING SYSTEM

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19
Q

ATLC

A

ATLANTIC

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20
Q

AURBO

A

AURORA BOREALIS

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21
Q

AUTO

A

AUTOMATED (METAR) NO HUMAN INTERVENTION

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22
Q

AWOS

A

AUTOMATIC WEATHER OBSERVING/REPORTING SYSTEM

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23
Q

AWP

A

AVIATION WEATHER PROCESSORS

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24
Q

B

A

BEGINNING OF PRECIPITATION (TIME IN MINUTES) (WX REPORTS ONLY)

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25
Q

BCH

A

BEACH

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26
Q

BCKG

A

BACKING

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27
Q

BDA

A

BERMUDA

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28
Q

BECMG

A

BECOMING(EXPECTED BETWEEN 2 DIGIT BEGINNING HOUR AND 2 DIGIT ENDING HOUR)

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29
Q

BFDK

A

BEFORE DARK

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30
Q

BINOVC

A

BREAKS IN OVERCAST

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31
Q

BKN

A

BROKEN

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32
Q

BL

A

BETWEEN LAYERS

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33
Q

BL

A

BLOWING (METAR)

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34
Q

BLD

A

BUILD

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35
Q

BLDUP

A

BUILDUP

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36
Q

BLKT

A

BLANKET

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37
Q

BLO

A

BELOW (ICAO) / (BELOW CLOUDS - METAR)

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38
Q

BLW

A

BELOW (ICAO)

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39
Q

BLZD

A

BLIZZARD

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40
Q

BMS

A

BASIC METEOROLOGICAL SERVICES

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41
Q

BNDRY

A

BOUNDARY

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42
Q

BRF

A

BRIEF

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43
Q

BRK

A

BREAK

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44
Q

BRKHIC

A

BREAKS IN HIGHER OVERCAST

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45
Q

BRM

A

BAROMETER

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46
Q

BTL

A

BETWEEN LAYERS

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47
Q

BTWN

A

BETWEEN

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48
Q

C

A

CONTINENTAL AIR MASS

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49
Q

CA

A

CLEAR ABOVE (PIREP ONLY)

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50
Q

CAN

A

CANADA

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51
Q

CARIB

A

CARIBBEAN

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52
Q

CASCDS

A

CASCADES

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53
Q

CAT

A

CLEAR AIR TURBULENCE (GENERAL)

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54
Q

CAVOK

A

CLOUD AND VISIBILITY OK (METAR)

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55
Q

CAVU

A

CLEAR OR SCATTERED CLOUDS AND VISIBILIY GREATER THAN TEN MILES

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56
Q

CAWS

A

COMMON AVIATION WEATHER SUB-SYSTEM

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57
Q

CCLKWS

A

COUNTERCLOCKWISE

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58
Q

CDFNT

A

COLD FRONT

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59
Q

CFP

A

COLD FRONT PASSAGE

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60
Q

CHARC

A

CHARACTERISTIC

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61
Q

CHC

A

CHANCE

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62
Q

CHSPK

A

CHESAPEAKE

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63
Q

CIG

A

CEILING

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64
Q

CLD

A

CLOUD

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65
Q

CLR

A

CLEAR AT OR BELOW 12,000 FEET (AWOS/ASOS/METAR)

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66
Q

CLRS

A

CLEAR AND SMOOTH

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67
Q

CNCL

A

CANCEL

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68
Q

CNDN

A

CANADIAN

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69
Q

CNVTV

A

CONVECTIVE

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70
Q

CONFDC

A

CONFIDENCE

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71
Q

CONT

A

CONTINUE OR CONTINUOUSLY (GEN)

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72
Q

CONTDVD

A

CONTINENTAL DIVIDE

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73
Q

COR

A

CORRECTION TO THE OBSERVATION

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74
Q

CST

A

COAST

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75
Q

CTGY

A

CATEGORY

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76
Q

CTSKLS

A

CATSKILLS

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77
Q

CYC

A

CYCLONIC

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78
Q

CYCLGN

A

CYCLOGENESIS

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79
Q

DABRK

A

DAYBREAK

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80
Q

DCAVU

A

CLEAR/SCATTERED CLOUDS. VISIBILITY GREATER THAN 10, REMAINDER OF REPORT MISSING

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81
Q

DKTS

A

DAKOTAS

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82
Q

DMSH

A

DIMINISH

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83
Q

DNS

A

DENSE

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84
Q

DNSLP

A

DOWNSLOPE

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85
Q

DNSTRM

A

DOWNSTREAM

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86
Q

DPNG

A

DEEPENING

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87
Q

DPTH

A

DEPTH

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88
Q

DR

A

LOW DRIFTING (METAR)

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89
Q

DRFT

A

DRIFT

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90
Q

DRZL

A

DRIZZLE

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91
Q

DSIPT

A

DISSIPATE

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92
Q

DTLN

A

INTERNATIONAL DATE LINE

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93
Q

DTRT

A

DETERIORATE

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94
Q

DURC

A

DURING CLIMB (PIREP)

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95
Q

DURD

A

DURING DECENT (PIREP)

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96
Q

DVV

A

DOWNWARD VERTICAL VELOCITY

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97
Q

DWNDRTS

A

DOWNDRAFTS

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98
Q

DWPNT

A

DEWPOINT

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99
Q

E

A

-ENDING OF PRECIPITATION (IN MINUTE-METAR)
-EQUATORIAL (AIR MASS)
-ESTIMATED (WEATHER REPORTS ONLY)
-EASTERN STANDARD TIME (TIME GROUPS ONLY)

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100
Q

ELNGT

A

ELONGATE

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101
Q

EMBDD

A

EMBEDDED

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102
Q

EMSU

A

ENVIRONMENT METEOROLOGICAL SUPPORT UNIT

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103
Q

ENERN

A

EAST-NORTHEASTERN (WEATHER REPORTS ONLY)

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104
Q

ENEWD

A

EAST-NORTHEASTWARD (WEATHER REPORTS ONLY)

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105
Q

EOF

A

EXPECTED OPERATIONS FORECAST

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106
Q

ESERN

A

EAST-SOUTHEASTERN (WEATHER REPORTS ONLY)

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107
Q

ESEWD

A

EAST-SOUTHEASTWARD (WEATHER REPORTS ONLY)

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108
Q

EXTRAP

A

EXTRAPOLATE

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109
Q

EXTRM

A

EXTREME

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110
Q

FA

A

AREA FORECAST

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111
Q

FAH

A

FAHRENHEIT

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112
Q

FEW

A

1 OR 2 OCTAS (EIGHTHS) CLOUD COVERAGE

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113
Q

FIBI

A

FILED BUT IMPRACTICAL TO TRANSMIT

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114
Q

FILG

A

FILLING

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115
Q

FINO

A

WEATHER REPORT WILL NOT BE FILED FOR TRANSMISSION /FL ALTITUDE/FLIGHT LEVEL (PIREP)

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116
Q

FL

A

FLASH ADVISORY

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117
Q

FLDST

A

FLOOD STAGE

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118
Q

FLG

A

FALLING

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119
Q

FLWIS

A

FLOOD WARNING ISSUED

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120
Q

FM

A

FROM (4 DIGIT BEGINNING TIME IN HOURS AND MINUTES)

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121
Q

FNT

A

FRONT

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122
Q

FNTGNS

A

FRONTOGENESIS

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123
Q

FNTLYS

A

FRONTOLYSIS

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124
Q

FORNN

A

FORENOON

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125
Q

FRMG

A

FORMING

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126
Q

FROPA

A

FRONTAL PASSAGE

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127
Q

FROSFC

A

FRONTAL SURFACE

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128
Q

FRST

A

FROST

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129
Q

FRWF

A

FORECAST WIND FACTOR

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130
Q

FRZ

A

FREEZE

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131
Q

FRZLVL

A

FREEZING LEVEL

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132
Q

FRZN

A

FROZEN

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133
Q

FT

A

FEET (GEN)

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134
Q

FRQ

A

FREQUENT (ICAO)

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135
Q

FULYR

A

SMOKE LAYER ALOFT

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136
Q

FUOCTY

A

SMOKE OVER CITY

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137
Q

FWC

A

FLEET WEATHER CENTRAL

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138
Q

G

A

GUSTS REACHING (KNOTS) (WEATHER REPORTS ONLY)

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139
Q

GICG

A

GLAZE ICING

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140
Q

GLFALSKID

A

GULF OF ALASKA

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141
Q

GLFCAL

A

GULF OF CALIFORNIA

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142
Q

GLFMEX

A

GULF OF MEXICO

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143
Q

GNDFG

A

GROUND FOG

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144
Q

GRAD

A

GRADIENT

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145
Q

GRBNKS

A

GRAND BANKS

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146
Q

GRDL

A

GRADUAL

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147
Q

GRTLKS

A

GREAT LAKES

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148
Q

GSTS

A

GUSTS

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149
Q

GSTY

A

GUSTY

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150
Q

GV

A

GROUND VISIBILITY

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151
Q

HCVIS

A

HIGH CLOUDS VISIBLE

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152
Q

HDFRZ

A

HARD FREEZE

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153
Q

HDSVLY

A

HUDSON VALLEY

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154
Q

HI

A

HIGH

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155
Q

HIEAT

A

HIGHEST TEMPERATURE EQUALED FOR ALL TIME

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156
Q

HIEFM

A

HIGHEST TEMPERATURE EQUALED FOR THE MONTH

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157
Q

HIESE

A

HIGHEST TEMPERATURE EQUALED SO EARLY

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158
Q

HIFOR

A

HIGH LEVEL FORECAST

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159
Q

HITMP

A

HIGHEST TEMPERATURE

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160
Q

HIXAT

A

HIGHEST TEMPERATURE EXCEEDED FOR ALL TIME

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161
Q

HIXFM

A

HIGHEST TEMPERATURE EXCEEDED FOR THE MONTH

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162
Q

HIXSE

A

HIGHEST TEMPERATURE EXCEEDED SO EARLY

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163
Q

HIXSL

A

HIGHEST TEMPERATURE EXCEEDED SO LATE

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164
Q

HLSTO

A

HAILSTONES

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165
Q

HLTP

A

HILLTOP

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166
Q

HLYR

A

HAZE LAYER ALOFT

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167
Q

HRCN

A

HURRICANE

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168
Q

HUREP

A

HURRICANE REPORT

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169
Q

HX

A

HIGH INDEX

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170
Q

/IC

A

ICING (PIREP ONLY)

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171
Q

ICG

A

ICING

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172
Q

ICGIC

A

ICING IN CLOUDS

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173
Q

ICGICIP

A

ICING IN CLOUDS AND PRECIPITATION

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174
Q

ICGIP

A

ICING IN PRECIPITATION

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175
Q

IMC

A

INSTRUMENT METEOROLOGICAL CONDITIONS

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176
Q

IMDT

A

IMMEDIATE

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177
Q

INLD

A

INLAND

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178
Q

INSTBY

A

INSTABILITY

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179
Q

INTR

A

INTERIOR

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180
Q

INTS

A

INTENSE

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181
Q

INTSFY

A

INTENSIFY

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182
Q

INVRN

A

INVERSION

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183
Q

IOVC

A

IN OVERCAST

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184
Q

IR

A

ICE ON RUNWAY

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185
Q

ISOLD

A

ISOLATED (GENERAL)

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186
Q

JTSTR

A

JET STREAM

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187
Q

K

A

COLD (AIR MASS)

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188
Q

KFRST

A

KILLING FROST

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189
Q

KT

A

KNOTS (FOLLOWS WIND DIRECTION/SPEED - GENERAL)

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190
Q

LABRDR

A

LABRADOR

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191
Q

LCTMP

A

LITTLE CHANGE IN TEMPERATURE

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192
Q

LDG

A

LANDING

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193
Q

LFT

A

LIFT

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194
Q

LGRNG

A

LONG RANGE

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195
Q

LGT

A

LIGHT (PIREP)

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196
Q

LIFR

A

LOW IFR (WEATHER REPORTS ONLY)

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197
Q

LK

A

LAKE

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198
Q

LLWS

A

LOW LEVEL WIND SHEAR (PIREP)

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199
Q

LN

A

LINE (GENERAL)

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200
Q

LOEAT

A

LOWEST TEMPERATURE EQUALED FOR ALL TIME

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201
Q

LOEFM

A

LOWEST TEMPERATURE EQUALED FOR THE MONTH

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202
Q

LOESE

A

LOWEST TEMPERATURE EQUALED SO EARLY

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203
Q

LOESE

A

LOWEST TEMPERATURE EQUALED SO EARLY

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204
Q

LOESL

A

LOWEST TEMPERATURE EQUALED SO LATE

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205
Q

LOTMP

A

LOWEST TEMPERATURE

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206
Q

LOXAT

A

LOWEST TEMPERATURE EXCEEDED FOR ALL TIME

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207
Q

LOXFM

A

LOWEST TEMPERATURE EXCEEDED FOR THE MONTH

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208
Q

LOXSE

A

LOWEST TEMPERATURE EXCEEDED SO EARLY

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209
Q

LOXSL

A

LOWEST TEMPERATURE EXCEEDED SO LATE

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210
Q

LSR

A

LOOSE SNOW ON RUNWAY

211
Q

LTG

212
Q

LTGCA

A

LIGHTNING - CLOUD TO AIR

213
Q

LTGCC

A

LIGHTNING - CLOUD TO CLOUD

214
Q

LTGCCCG

A

LIGHTNING - CLOUD TO CLOUD, CLOUD TO GROUND

215
Q

LTGCG

A

LIGHTNING CLOUD TO GROUND

216
Q

LTGCW

A

LIGHTNING CLOUD TO WATER

217
Q

LTGIC

A

LIGHTNING IN CLOUDS

218
Q

LTLCG

A

LITTLE CHANGE

219
Q

LTNG

220
Q

LX

221
Q

LYR

A

LAYER OR LAYERED OR LAYERS

222
Q

M

A

-MARITIME (AIR MASS)
-IN TEMPERATURE FIELD MEANS “MINUS” OR BELOW ZERO (METAR)
-IN RVR LISTING INDICATES VISIBILITY LESS THAN LOWEST REPORTABLE SENSOR VALUE
-MISSING (WEATHER REPORTS ONLY)
-MOUNTAIN STANDARD TIME (TIME GROUPS ONLY)

223
Q

MA

A

MAP ANALYSIS

224
Q

MAN

225
Q

MEGG

226
Q

METAR

A

AVIATION ROUTINE WEATHER REPORT (ICAO)

227
Q

MEX

228
Q

MHKVLY

A

MOHAWK VALLEY

229
Q

MI

A

SHALLOW (METAR)

230
Q

MIDN

231
Q

MIFG

A

PATCHES OF SHALLOW FOG NOT DEEPER THAN TWO METERS (METAR)

232
Q

MLTLVL

A

MELTING LEVEL

233
Q

MMO

A

MAIN METEOROLOGICAL OFFICE

234
Q

MNLD

235
Q

MOD

A

MODERATE (PIREP)

236
Q

MOGR

A

MODERATE OR GREATER

237
Q

MONTR

238
Q

MOV

239
Q

MPS

A

METRES PER SECOND

240
Q

MRGL

241
Q

MRNG

242
Q

MRTM

243
Q

MS

244
Q

MSTLY

245
Q

MSTR

246
Q

MTN

247
Q

MVFR

A

MARGINAL VFR

248
Q

MX

A

MIXED, ICING TYPE (PIREP)

249
Q

MXD

250
Q

NB

A

NEW BRUNSWICK

251
Q

NCWX

A

NO CHANGE IN WEATHER

252
Q

NELY

A

NORTHEASTERLY (WEATHER REPORTS ONLY)

253
Q

NERN

A

NORTHEASTERN

254
Q

NEWENG

A

NEW ENGLAND

255
Q

NFLD

A

NEWFOUNDLAND

256
Q

NGT

257
Q

NL

258
Q

NMBR

259
Q

NNERN

A

NORTH-NORTHEASTERN (WEATHER REPORTS ONLY)

260
Q

NNEWD

A

NORTH-NORTHEASTWARD (WEATHER REPORTS ONLY)

261
Q

NNWRN

A

NORTH-NORTHWESTERN (WEATHER REPORTS ONLY)

262
Q

NNWWD

A

NORTHWESTWARD (WEATHER REPORTS ONLY)

263
Q

NO

A

NOT AVAILABLE (E.G. SLPNO, RVRNO)

264
Q

NORPI

A

NO PILOT BALLOON OBSERVATION WILL BE FILED. NEXT COLLECTION UNLESS WEATHER CHANGES SIGNIFICANTLY

265
Q

NOSPL

A

NO SPECIAL OBSERVATIONS TAKEN (WEATHER REPORTS ONLY)

266
Q

NPRS

A

NONPERSISTENT

267
Q

NS

A

NOVA SCOTIA

268
Q

NSCSWD

A

NO SMALL CRAFT OR STORM WARNING ARE BEING DISPLAYED

269
Q

NSW

A

NO SIGNIFICANT WEATHER (TAF)

270
Q

NVA

A

NEGATIVE VORTICITY ADVECTION

271
Q

NWLY

A

NORTHWESTERLY (WEATHER REPORTS ONLY)

272
Q

NWRN

A

NORTHWESTERN (WEATHER REPORTS ONLY)

273
Q

OBS

A

OBSERVATION

274
Q

OBSC

275
Q

OCFNT

A

OCCLUDED FRONT

276
Q

OCLD

277
Q

OCLN

278
Q

OCNL

A

OCCASIONAL (GENERAL)

279
Q

OFP

A

OCCASIONAL FRONTAL PASSAGE

280
Q

OFSHR

281
Q

OMTNS

A

OVER MOUNTAINS

282
Q

ONSHR

283
Q

ONT

284
Q

ORGPHC

A

OROGRAPHIC

285
Q

OSV

A

OCEAN STATION VESSEL

286
Q

OTAS

A

ON TOP AND SMOOTH

287
Q

OTLK

288
Q

OTP

A

ON TOP (PIREP)

289
Q

/OV

A

LOCATION (PIREP ONLY)

290
Q

OVC

291
Q

P

A
  • IN RVR INDICATES VISIBILITY GREATER THAN HIGHEST REPORTABLE SENSOR VALUE E.G. P6000FT)
  • PACIFIC STANDARD TIME (TIME GROUP ONLY)
  • POLAR (AIR MASS)
292
Q

P6SM

A

VISIBILITY GREATER THAN 6 SM (TAF ONLY)

293
Q

PAC

294
Q

PBL

295
Q

PCPN

A

PRECIPITATION

296
Q

PDMT

A

PREDOMINANT

297
Q

PDW

A

PRIORITY DELAYED WEATHER

298
Q

PEN

299
Q

PGTSND

A

PUGET SOUND

300
Q

PIBAL

A

PILOT BALLOON OBSERVATION

301
Q

PISE

A

NO PILOT BALLOON OBSERVATION DUE TO UNFAVORABLE SEA CONDITIONS

302
Q

PISO

A

NO PILOT BALLOON OBSERVATION DUE TO SNOW

303
Q

PIWI

A

NO PILOT BALLOON OBSERVATION DUE TO HIGH, OR GUSTY, SURFACE WIND

304
Q

PK WND

305
Q

PLW

A

PLOW (SNOW)

306
Q

PNHDL

307
Q

PO

A

DUST DEVIL / SAND SWIRLS (METAR)

308
Q

PPINA

A

RADAR WEATHER REPORTS NOT AVAILABLE

309
Q

PPINE

A

RADAR WEATHER REPORT NO ECHOES OBSERVED

310
Q

PPINO

A

RADAR WEATHER REPORT EQUIPMENT INOPERATIVE DUE TO BREAKDOWN

311
Q

PPIOK

A

RADAR WEATHER REPORT EQUIPMENT OPERATION RESUMED

312
Q

PPIOM

A

RADAR WEATHER REPORT EQUIPMENT INOPERATIVE DUE TO MAINTENANCE

313
Q

PR

A

PARTIAL (METAR)

314
Q

PRBLTY

A

PROBABILITY

315
Q

PRESFR

A

PRESSURE FALLING RAPIDLY

316
Q

PRESRR

A

PRESSURE RISING RAPIDLY

317
Q

PRFG

A

FOG PARTIAL (METAR)

318
Q

PRJMP

A

PRESSURE JUMP (WEATHER REPORTS ONLY)

319
Q

PROB30

A

SLIGHT CHANCE, PROBABLILITY 30 PERCENT (TAF)

320
Q

PROB40

A

PROBABILITY 40 PERCENT (TAF)

321
Q

PROG

A

PROGNOSIS OR PROGNOSTIC

322
Q

PRSNT

323
Q

PS

324
Q

PSG

325
Q

PSG

A

PASSAGE / PASSING

326
Q

PSR

A

PACKED SNOW ON RUNWAY

327
Q

PTCHY

328
Q

PTLY

329
Q

PVA

A

POSITIVE VORTICITY ADVECTION

330
Q

PWINO

A

PRECIPITATION IDENTIFIER INFORMATION NOT AVAILABLE (WEATHER REPORTS ONLY)

331
Q

R

A

RUNWAY (USED IN RVR MEASUREMENT)

332
Q

RABA

A

NO RAWIN OBSERVATION, NO BALLOONS AVAILABLE

333
Q

RABAL

A

RADIOSONDE BALLOON WIND DATA

334
Q

RABAR

A

RADIOSONDE BALLOON RELEASE

335
Q

RACO

A

NO RAWIN OBSERVATION, COMMUNICATIONS OUT

336
Q

RADAT

A

RADIOSONDE OBSERVATION DATA

337
Q

RADNO

A

REPORT MISSING ACCOUNT RADIO FAILURE

338
Q

RAFI

A

RADIOSONDE OBSERVATION NOT FILED

339
Q

RAFRZ

A

RADIOSONDE OBSERVATION FREEZING LEVELS

340
Q

RAHE

A

NO RAWIN OBSERVATION, NO GAS AVAILABLE

341
Q

RAICG

A

RADIOSONDE OBSERVATION ICING AT

342
Q

RAOB

A

RADIOSONDE OBSERVATION

343
Q

RAPI

A

RADIOSONDE REPORT ALREADY SENT IN PIBAL COLLECTION

344
Q

RAREP

A

RADAR WEATHER REPORT

345
Q

RASN

A

RAIN AND SNOW (METAR)

346
Q

RAVU

A

RADIOSONDE ANALYSIS AND VERIFICATION UNIT

347
Q

RAWE

A

NO RAWIN OBSERVATION, UNFAVORABLE WEATHER

348
Q

RAWI

A

NO RAWIN OBSERVATION, HIGH AND GUSTY WINDS

349
Q

RAWIN

A

UPPER WINDS OBSERVATION (BY RADIO METHODS)

350
Q

RCD

A

RADAR CLOUD DETECTION REPORT

351
Q

RCDNA

A

RADAR CLOUD DETECTION REPORT NOT AVAILABLE

352
Q

RCDNE

A

RADAR CLOUD DETECTION REPORT NOT AVAILABLE

353
Q

RCDNO

A

RADAR CLOUD DECTECTOR INOPERATIVE DUE TO BREAKDOWN UNTIL

354
Q

RCDOM

A

RADAR CLOUD DETECTOR INOPERATIVE DUE TO MAINTENANCE UNTIL

355
Q

RCKY

A

ROCKY MOUNTAINS

356
Q

RDG

357
Q

RDWND

A

RADAR DOME WIND

358
Q

RESTR

359
Q

RGD

360
Q

RH

A

RELATIVE HUMIDITY

361
Q

RHINO

A

RADAR ECHO HEIGHT INFORMATION NOT AVAILABLE/NOT OPERATING ON SCAN

362
Q

RIOGD

A

RIO GRANDE

363
Q

/RM

A

REMARKS (PIREP)

364
Q

RMK

365
Q

RNFL

366
Q

ROBEPS

A

RADAR OPERATING BELOW PRESCRIBED STANDARD

367
Q

RPD

368
Q

RSG

369
Q

RUF

370
Q

RY/RWY

371
Q

SA

A

SAND (METAR)

372
Q

SASK

A

SASKATCHEWAN

373
Q

SBSD

374
Q

SCT

375
Q

SELS

A

SEVERE LOCAL STORMS

376
Q

SELY

A

SOUTHEASTERLY (WEATHER REPORTS ONLY)

377
Q

SERN

A

SOUTHEASTERN (WEATHER REPORTS ONLY)

378
Q

SEV

A

SEVERE (ICAO)

379
Q

SFERICS

A

ATMOSPHERICS

380
Q

SGD

A

SOLAR-GEOPHYSICAL DATA

381
Q

SHFT

A

SHIFT (WEATHER REPORTS ONLY)

382
Q

SHLW

383
Q

SHRTLY

384
Q

SIERNEV

A

SIERRA NEVADA

385
Q

SIR

A

SNOW AND ICE ON RUNWAY

386
Q

/SK

A

SKY CONDITIONS (PIREP ONLY)

387
Q

SKC

388
Q

SLD

389
Q

SLP

A

SEA LEVEL PRESSURE

390
Q

SLR

A

SLUSH ON RUNWAY

391
Q

SLT

392
Q

SM

A

STATUTE MILES

393
Q

SMK

394
Q

SMTH

395
Q

SNBNK

396
Q

SNFLK

397
Q

SNOINCR

A

SNOW DEPTH INCREASE IN PAST HOUR

398
Q

SNW

399
Q

SNWFL

400
Q

SP

A

STATION PRESSURE

401
Q

SPECI

A

SPECIAL REPORT

402
Q

SPKL

403
Q

SPLNS

A

SOUTH PLAINS

404
Q

SPRD

405
Q

SQ

A

SQUALL (METAR)

406
Q

SQAL

407
Q

SQLN

A

SQUALL LINE

408
Q

SSERN

A

SOUTH-SOUTHEASTERN (WEATHER REPORTS ONLY)

409
Q

SSEWD

A

SOUTH-SOUTHEASTWARD (WEATHER REPORTS ONLY)

410
Q

SSWRN

A

SOUTH-SOUTHWESTERN (WEATHER REPORTS ONLY)

411
Q

SSWWD

A

SOUTH-SOUTHWESTWARD (WEATHER REPORTS ONLY)

412
Q

STAGN

A

STAGNATION

413
Q

STG

414
Q

STM

415
Q

STNRY

A

STATIONARY

416
Q

SWLG

417
Q

SWLY

A

SOUTHWESTERLY (WEATHER REPORTS ONLY)

418
Q

SWRN

A

SOUTHWESTERN (WEATHER REPORTS ONLY)

419
Q

SX

A

STABILITY INDEX

420
Q

SXN

421
Q

SYNOP

422
Q

SYNS

423
Q

T

A
  • TRACE (WEATHER REPORTS ONLY)
  • TROPICAL (AIR MASS)
424
Q

/TA

A

AIR TEMPERATURE (PIREP)

425
Q

TAF

A

AVIATION TERMINAL FORECAST

426
Q

/TB

A

TURBULENCE (PIREPS ONLY)

427
Q

TCU

A

TOWERING CUMULUS

428
Q

TEMPO

A

TEMPORARY CHANGES EXPECTED

429
Q

THD

A

THUNDERHEAD (NON METAR)

430
Q

THDR

A

THUNDER (NON METAR)

431
Q

THK

432
Q

THN

433
Q

TKOF

434
Q

/TM

A

TIME (PIREP)

435
Q

TOP

436
Q

TOVC

A

TOP OF OVERCAST

437
Q

/TP

A

TYPE AIRCRAFT (PIREP ONLY)

438
Q

TPG

439
Q

TRIB

440
Q

TROF

441
Q

TROP

A

TROPOPAUSE

442
Q

TRPCD

A

TROPICAL CONTINENTAL (AIR MASS)

443
Q

TRPCL

444
Q

TRPLYR

A

TRAPPING LAYER

445
Q

TS

A

THUNDERSTORM

446
Q

TSNO

A

THUNDERSTORM INFO NOT AVAILABLE

447
Q

TSHWR

A

THUNDERSHOWER (NON METAR)

448
Q

TSQLS

A

THUNDERSQUALLS (NON METAR)

449
Q

TSTM

A

THUNDERSTORM (NON METAR)

450
Q

TURBC

A

TURBULENCE

451
Q

TURBT

452
Q

TWRG

453
Q

UA

A

ROUTINE PIREP

454
Q

UAG

A

UPPER ATMOSPHERE GEOPHYSICS

455
Q

UDDF

A

UP AND DOWN DRAFTS

456
Q

UNSBL

A

UNSEASONABLE

457
Q

UNSTBL

458
Q

UNSTDY

459
Q

UNSTL

460
Q

UP

A

UNKNOWN PRECIPITATION (AUTOMATED OBSERVATIONS)

461
Q

UPDFTS

462
Q

UPR

463
Q

UPSLP

464
Q

UPSTRM

465
Q

UUA

A

URGENT PIREP

466
Q

UVV

A

UPWARD VERTICAL VELOCITY

467
Q

UWNDS

A

UPPER WINDS

468
Q

V

A
  • VARIES (WINDS DIRECTION AND RVR)
  • VARIABLE (WEATHER REPORTS ONLY)
469
Q

VA

A

VOLCANIC ASH (METAR)

470
Q

VC

471
Q

VCFG

A

FOG IN VICINITY (METAR)

472
Q

VIS

A

VISIBILITY (GENERAL)

473
Q

VLCTY

474
Q

VLNT

475
Q

VLY

476
Q

VR

477
Q

VRB

A

VARIABLE WIND DIRECTION WHEN SPEED IS LESS THAN OR EQUAL TO 6 KNOTS

478
Q

VRISL

A

VANCOUVER ISLAND, BC

479
Q

VSBY

A

VISIBILITY

480
Q

VSBYDR

A

VISIBILITY DECREASING RAPIDLY

481
Q

VSBYIR

A

VISIBILITY INCREASING RAPIDLY

482
Q

VV

A

VERTICAL VISBILITY (INDEFINITE CEILING)

483
Q

W

A

WARM (AIR MASS)

484
Q

WA

485
Q

WDC-1

A

WORLD DATA CENTERS IN WESTERN EUROPE

486
Q

WDC-2

A

WORLD DATA CENTERS THROUGHOUT REST OF WORLD

487
Q

WDLY

488
Q

WDSPRD

A

WIDESPREAD

489
Q

WEA

490
Q

WFP

A

WARM FRONT PASSAGE

491
Q

WINT

492
Q

WND

493
Q

WNWRN

A

WEST-NORTHWESTERN (WEATHER REPORTS ONLY)

494
Q

WNWWD

A

WEST-NORTHWESTWARD (WEATHER REPORTS ONLY)

495
Q

WPLTO

A

WESTERN PLATEAU

496
Q

WR

A

WET RUNWAY

497
Q

WRM

498
Q

WRMFNT

A

WARM FRONT

499
Q

WRNG

500
Q

WS

A

WIND SHEAR (IN TAFs, LOW LEVEL AND NOT ASSOCIATED WITH CONVECTIVE ACTIVITY)

501
Q

WSHFT

A

WIND SHIFT

502
Q

WSOM

A

WEATHER SERVICE OPERATIONS MANUAL

503
Q

WSR

A

WET SNOW ON RUNWAY

504
Q

WSTCH

A

WATCH RANGE

505
Q

WSWRN

A

WEST-SOUTHWESTERN (WEATHER REPORTS ONLY)

506
Q

WSWWD

A

WEST-SOUTHWESTWARD (WEATHER REPORTS ONLY)

507
Q

WTR

508
Q

WTSPT

A

WATERSPOUT

509
Q

WV

510
Q

/WV

A

WIND AT ALTITUDE ONLY (PIREP ONLY)

511
Q

WW

A

SEVERE WEATHER FORECAST

512
Q

/WX

A

FLIGHT VISIBILITY AND FLIGHT WEATHER (PIREP)

513
Q

WXCON

A

WEATHER RECONNAISSANCE FLIGHT PILOT REPORT

514
Q

XCP or XPC

515
Q

Y

A

YUKON STANDARD TIME (TIME GROUPS ONLY)

516
Q

YKN

517
Q

YLSTN

A

YELLOWSTONE

518
Q

Z

A

ZULU TIME
APPENDED DATE-TIME GROUPE INDICATES UTC (METAR/TAF)

519
Q

ZI

A
  • ZONAL INDEX

-ZONE OF INTERIOR

520
Q

NOTAM

A

NOTICE TO AIRMEN

521
Q

RVR

A

RUNWAY VISUAL RANGE

522
Q

Are heights displayed as agl or asl in METAR/TAF?

A

Above ground level

523
Q

What are the required meteorological documents to be familiar with before starting a flight?

A

Flight weather documentation should include, as appropriate:
the relevant GFAs, AIRMETs, SIGMETs, TAFs, METARs, SPECIs,
PIREPs, and upper wind and temperature forecasts.

Weather Abbreviations (2 decks)

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