Weather Reports Flashcards
GRAFOR - Define
Graphical Aviation Forecast chart provides weather information for low-level flights (SFC to FL100). All times UTC
GRAFOR - Issue Times
1100 and 2100
GRAFOR - Valid Times
1100 issue - 1800, 0000 and 0600
2100 issue - 0000, 0600 and 1200
Each chart valid for ± 3hrs of the stated valid time, e.g. a chart valid at 1800 is valid for use between 1500 and 2100.
GRAFOR - No of Charts
3 charts at each issue time.
GRAFOR - heights
Hundreds of feet ASML
GRAFOR - Area
New Zealand with 15NM envelope extending seaward from the coastline, and adjusted over Southern Taranaki Bight. The 15NM envelope is marked on the charts.
GRAFOR - Fronts
Cold, Warm, Occluded, Stationary
GRAFOR - Phenomena
SH, TS, DZ, RA, GS, GR, SN, SG, BR, FG, HZ, FU, VA, DU, SA, SQ, PO, FC, SS, DS
GRAFOR - Deep Convective Cloud Type
TCU, CB
GRAFOR - Deep Convective Cloud Coverage
ISOL, OCNL, FRQ, EMBD
GRAFOR - Non deep convective cloud Coverage
OVC, BRK, SCT, NSC
GRAFOR - Freezing Level
Spot values depicted in a box. 0º means 0º C and three figures indicate the height in hundreds of feet AMSL, e.g. 085 = 8,500 ft; 115 = 11,500 ft -
[0º : 085]
AAW - define
Area Aviation Winds
AAW - issue times
1100 and 2100 (all times UTC)
AAW - Validity
1200 to 0600 and 2100 to 1200. Each of these may be split into smaller periods within the overall validity.
AAW - Heights (winds)
1000, 3000, 5000, 7000 and 10,000 ft AMSL
AAW - Heights (temps)
5000, 7000 and 10,000 ft AMSL
AAW - Wind speed and direction
Degrees TRUE in knots.
AAW - Temperature
Deg Celsius
AAW - Areas
17 areas in New Zealand
GNZSIGNWX - Define
GNZSIGNWX - Issue times
GNZSIGNWX - Validity
GNZSIGNWX - No of Charts