2-72
Section 2
FIS Operation
Understanding Weather Reports
KMD 250 Pilot's Guide
Rev 4 Aug/2007
/RM
: Remarks (for reporting elements not included or to clarify pre-
viously reported items). Remarks can include anything. The
example translates to “moderate (
MDT
) mixed (
MXD
) icing during
climb (
DURGC
) from Roanoke, VA (
KROA
) northwestbound
(
NWBND
) between Flight Level 080 and 100 (
FL080100
) at
1750Z
”.
UNDERSTANDING AIRMETS
The following is an example of a typical AIRMET with an explanation of
the elements.
1.
Forecast Area:
CHIT
This is the forecast area identifier of the issuing Weather Service
Forecast Office.
BOS
Boston
CHI
Chicago
DFW
Dallas/Ft. Worth
MIA
Miami
SFO
San Francisco
SLC
Salt Lake City
The
T
denotes the reason for the AIRMET. This could be one of the
following:
S
Sierra
IFR
Ceilings < 1,000 feet and/or visibility
< 3 miles affecting > 50% of the area at
one time or extensive mountain obscu-
ration.
T
Tango Turbulence
Moderate turbulence, sustained suface
winds of ≥ 30 knots at the surface or
low level windshear.
Z
Zulu
Icing
Moderate icing and/or freezing levels.
AIRMET items are considered widespread. Widespread is consid-
ered an area ≥ 3,000 square miles.
CHIT WA 151900 AMD
AIRMET TANGO UPDT 2 FOR TURB
VALID UNTIL 160100
AIRMET TURB...KS MO
FROM MCI TO STL TO SGF TO ICT TO MCI
MOD TURB BLW 100 EXPCD
CONDS IPVG AFT 160000Z
1
3
4
5
2
6
7
8
9
10
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