Radar Weather Reports (SD's) RAREP's Flashcards
Radar weather reports (RAREP’s/SD’s)
How often & when are RAREP’s issued?
35 minutes past each hour or when necessary.
Radar weather reports (RAREP’s/SD’s)
Radar weather reports are issued by WHAT?
Radar Stations.
Radar weather reports (RAREP’s/SD’s)
Give an overview of what SD’s provide?
Precipitation: type/intensity/echo top location/direction/speed/height and base in MSL.
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
MEANING
What is RW
Rain Shower
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
MEANING
What is R
Rain
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
MEANING
What is SW
Snow Shower
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
MEANING
What is S
Snow
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is -
Light
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
MEANING
What is T
Thunderstorm
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is +
Heavy
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is (none)
Moderate
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is X
Intense
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is ++
Very Heavy
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
INTENSITY
What is XX
Extreme
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
OPERATIONAL STATUS
What is PPINE
Radar is operating normally but there are no echoes being detected.
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
OPERATIONAL STATUS
What is PPINA
Radar observation is not available.
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
OPERATIONAL STATUS
What is PPIOM
Radar is inoperative or out of service.
Radar weather reports (RAREP’s/SD’s)
SYMBOLS
OPERATIONAL STATUS
What is AUTO
Automated radar report from WSR-88D.
Radar weather reports (RAREP’s/SD’s)
What does a RAREP not include?
Cloud bases and tops, ceilings and visibility. So only precipitation (not vapour).
Radar weather reports (RAREP’s/SD’s)
What does a typical RAREP include?
- Location identifier and time of radar observation.
- Echo pattern (LN/AREA/CELL).
- Area coverage in tenth’s.
- Type and intensity of weather.
- Azimuth reference and range.
- Dimension of echo pattern.
- Cell movement.
- Maximum Top and location.
- AUTO (if reported automatically from WSR-88D radar data.
- Figures to prepare radar summary charts.
Radar weather reports (RAREP’s/SD’s)
What does this mean?
TLX 1935 LN 8 TRW++ 86/40 199/115 20W C2425 MTS 570 AT 159/65 AUTO ^M01 N02 ON3 PM34 QM3 RL2=
Automated from Oklahoma City. At 1935 UTC. Line of echoes 8/10th’s of the area.
Thunderstorms & very heavy rain showers. From 86degrees at 40NM & 199degrees at 115NM.
20 miles wide.
Cells within the line are moving from 240degrees at 25 Knots. Maximum top (determined by both Radar & Satellite) at 57000 ft 159degrees & 65NM out. The last line indicates the intensity of precipitation. EG: grid QM intensity is 3.
