National Weather Service United States Department of Commerce

Choose from the AIRMET types and regions below, or go to the Graphical AIRMET page at AWC.

 

IFR US Turbulence US Icing US Freezing Level US
IFR PacNW Turbulence PacNW Icing PacNW Freezing Level PacNW

 

Instrument Flight Rules (IFR) or Mountain Obscuration - AIRMET SIERRA (12-hour period)
  • Ceilings less than 1000 feet and/or visibility less than 3 miles affecting over 50% of the area at one time.
  • Extensive mountain obscuration
Turbulence - AIRMET TANGO (12-hour period)
  • Moderate Turbulence HIGH level (>FL180)
  • Moderate Turbulence LOW level (sfc-FL180)
  • Low Level Wind Shear (LLWS) below 2000 feet AGL
  • Sustained surface winds of 30 knots or more at the surface
Icing - AIRMET ZULU (12-hour period)
  • Moderate Icing
  • Lowest Freezing Levels
  • Multiple Freezing Levels

 

 Please note that SIGMETs are included in the separate, lower-right graphic above. 

 


000
WAUS46 KKCI 302045
WA6S
SFOS WA 302045
AIRMET SIERRA UPDT 3 FOR IFR AND MTN OBSCN VALID UNTIL 010300
.
AIRMET IFR...CA AND CSTL WTRS
FROM 40SW PYE TO 80SW SNS TO 90W RZS TO 50W RZS TO 20ESE RZS TO
40N MZB TO 30SE MZB TO 220SW MZB TO 120WSW PYE TO 40SW PYE
CIG BLW 010/VIS BLW 3SM BR/FG. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET IFR...WA OR AND CSTL WTRS
FROM 50NNE TOU TO 30NNW SEA TO 60SSW SEA TO 60SSW HQM TO 100W
ONP TO 140W TOU TO 50NNE TOU
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET IFR...WA OR CA AND CSTL WTRS
FROM 50S HQM TO BTG TO 70SSW DSD TO 40SSW OED TO 30NNW FOT TO
40S FOT TO 60SW ENI TO 120WSW PYE TO 140WSW FOT TO 130WSW ONP TO
50WNW ONP TO 50S HQM
CIG BLW 010/VIS BLW 3SM BR/FG. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET MTN OBSCN...WA OR ID MT
FROM 80E YDC TO 40SW YQL TO 20WSW GTF TO 40SSW HLN TO 40SW DLN
TO 50ESE DNJ TO 30NNW DNJ TO 20S GEG TO 80E YDC
MTNS OBSC BY CLDS/PCPN. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET MTN OBSCN...WA OR
FROM YDC TO 50E YDC TO 40S YKM TO 40SSE BTG TO 30N ONP TO 30S
HQM TO 20NW TOU TO YDC
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
OTLK VALID 0300-0900Z
AREA 1...IFR CA
BOUNDED BY 40SSW RBL-60SE RBL-40E MOD-30ENE SNS-20N OAK-40SSW RBL
CIG BLW 010/VIS BLW 3SM BR/FG. CONDS DVLPG 06-09Z. CONDS CONTG
THRU 09Z.
.
AREA 2...IFR WA OR AND CSTL WTRS
BOUNDED BY 30NE HUH-30E SEA-30ENE BTG-60S HQM-60WSW ONP-160NW
FOT-120WNW ONP-150W TOU-30NE HUH
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG THRU 09Z.
....



000
WAUS45 KKCI 302045
WA5S
SLCS WA 302045
AIRMET SIERRA UPDT 3 FOR IFR AND MTN OBSCN VALID UNTIL 010300
.
NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT.
.
AIRMET MTN OBSCN...ID MT WA OR
FROM 80E YDC TO 40SW YQL TO 20WSW GTF TO 40SSW HLN TO 40SW DLN
TO 50ESE DNJ TO 30NNW DNJ TO 20S GEG TO 80E YDC
MTNS OBSC BY CLDS/PCPN. CONDS CONTG BYD 03Z THRU 09Z.
....


000
WAUS46 KKCI 302045
WA6T
SFOT WA 302045
AIRMET TANGO UPDT 5 FOR TURB AND LLWS VALID UNTIL 010300
.
AIRMET TURB...WA OR CA ID MT WY NV UT CO AZ NM AND CSTL WTRS
FROM 50WSW YXC TO 50NNW ISN TO 70SW RAP TO BFF TO GLD TO 50W LBL
TO 30ESE TBE TO 20W TXO TO 150SW SNS TO 140SW FOT TO 60E RBL TO
40NNE TOU TO 50WSW YXC
MOD TURB BTN FL180 AND FL440. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...WA OR ID MT AND CSTL WTRS
FROM 50WSW YXC TO 50NNE TWF TO 30WSW BKE TO 40ESE DSD TO 30S ONP
TO 60WNW TOU TO 20SSW YDC TO 50WSW YXC
MOD TURB BLW 140. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...CA AND CSTL WTRS
FROM EHF TO 30ESE HEC TO 50S TRM TO 20S RZS TO EHF
MOD TURB BLW 100. CONDS ENDG 00-03Z.
.
LLWS POTENTIAL...WA OR ID MT WY UT CO
BOUNDED BY 40SW YXC-60S YXH-50NNW ISN-70SW RAP-BFF-SNY-60E HBU-
30SW HBU-20S DBS-20NNE TWF-40SSW PDT-40SW YXC
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
.
LLWS POTENTIAL...WA OR
BOUNDED BY 40WSW YDC-70ESE YDC-40SW EPH-50SE YKM-70SSW YKM-60S
SEA-40NW SEA-40WSW YDC
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
....



000
WAUS45 KKCI 302053 AAA
WA5T
SLCT WA 302053 AMD
AIRMET TANGO UPDT 5 FOR TURB STG WNDS AND LLWS VALID UNTIL 010300
.
...SEE SIGMET VICTOR SERIES...
.
AIRMET TURB...ID MT WY NV UT CO AZ NM WA OR CA AND CSTL WTRS
FROM 50WSW YXC TO 50NNW ISN TO 70SW RAP TO BFF TO GLD TO 50W LBL
TO 30ESE TBE TO 20W TXO TO 150SW SNS TO 140SW FOT TO 60E RBL TO
40NNE TOU TO 50WSW YXC
MOD TURB BTN FL180 AND FL440. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...ID MT WA OR AND CSTL WTRS
FROM 50WSW YXC TO 50NNE TWF TO 30WSW BKE TO 40ESE DSD TO 30S ONP
TO 60WNW TOU TO 20SSW YDC TO 50WSW YXC
MOD TURB BLW 140. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...ID MT WY UT CO NM
FROM 50WSW YXC TO 50NE HVR TO 50NNW ISN TO 70SW RAP TO 40ENE AKO
TO 40W AKO TO TBE TO 20SSW CIM TO 60SSW HBU TO 30NE JNC TO 50ESE
SLC TO 50NNE TWF TO 50WSW YXC
MOD TURB BLW FL180. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...WY CO
FROM 70SE DDY TO CYS TO 40NW DEN TO 30SW DEN TO 50E DBL TO 70ENE
OCS TO 50S DDY TO 70SE DDY
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 21-00Z.
CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...MT WY
FROM 50ESE YXC TO 40SSE YQL TO 40NE BIL TO 40ENE BPI TO 40SSE
HLN TO 40W HLN TO 50SSE FCA TO 50ESE YXC
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS CONTG BYD 03Z
THRU 09Z.
.
LLWS POTENTIAL...ID MT WY UT CO WA OR
BOUNDED BY 40SW YXC-60S YXH-50NNW ISN-70SW RAP-BFF-SNY-60E HBU-
30SW HBU-20S DBS-20NNE TWF-40SSW PDT-40SW YXC
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
....


000
WAUS46 KKCI 302045
WA6Z
SFOZ WA 302045
AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 010300
.
AIRMET ICE...WA OR ID MT WY AND CSTL WTRS
FROM 40SW YQL TO 60E FCA TO 30NNW DLN TO 50SSE HLN TO 40S SHR TO
20W BOY TO 60W BOI TO 20ESE DSD TO 40SE BTG TO 30W ONP TO 110W
ONP TO 140W TOU TO 20WNW HUH TO 40SW YQL
MOD ICE BTN FRZLVL AND FL210. FRZLVL 070-120. CONDS CONTG BYD 03Z
THRU 09Z.
.
FRZLVL...RANGING FROM 065-135 ACRS AREA
080 ALG YDC-40NE GEG
120 ALG 160WNW ONP-40SW EUG-50ENE LKV-30S REO
....



000
WAUS45 KKCI 302045
WA5Z
SLCZ WA 302045
AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 010300
.
AIRMET ICE...ID MT WY WA OR AND CSTL WTRS
FROM 40SW YQL TO 60E FCA TO 30NNW DLN TO 50SSE HLN TO 40S SHR TO
20W BOY TO 60W BOI TO 20ESE DSD TO 40SE BTG TO 30W ONP TO 110W
ONP TO 140W TOU TO 20WNW HUH TO 40SW YQL
MOD ICE BTN FRZLVL AND FL210. FRZLVL 070-120. CONDS CONTG BYD 03Z
THRU 09Z.
.
AIRMET ICE...MT WY
FROM 50SSE YXH TO 60NW ISN TO 50WNW RAP TO 20SE CZI TO 60SSE HLN
TO HLN TO 50SSE YXH
MOD ICE BTN FRZLVL AND FL180. FRZLVL 050-090. CONDS ENDG BY 03Z.
.
FRZLVL...RANGING FROM SFC-140 ACRS AREA
MULT FRZLVL BLW 130 BOUNDED BY 40SW YQL-LWT-20S BOY-30ESE DDY-
CYS-60WNW PUB-20N HBU-50WSW CHE-60SE BVL-60SSW MLD-30ENE
PIH-50N TWF-20NNW DNJ-70NW LKT-80WSW YXC-40SW YQL
SFC BOUNDED BY 30SE DLN-70ESE DLN-80SSW BIL-80SW BIL-40NW BOY-
20SW BOY-60SSW BOY-20NW OCS-50SSW BPI-50E MLD-40ENE MLD-
20NE PIH-20NNE PIH-40SW DBS-50SSW DLN-40SSW DLN-30SE DLN
080 ALG 40NE GEG-40SE DBS-20NNE JAC-70E DLN-80SSW LWT-20NNE
BIL-50WNW RAP
120 ALG 30S REO-60SSE REO-40SE DBL-50SSE DEN-40SE PUB-60W LBL
....

 

9-Hour (Smear) AIRMETs for Turbulence, Icing, IFR, Mountain Obscuration