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A Large and Slow-Moving Storm System Producing Thunderstorms and Heavy Rain

A slow-moving and large storm system will produce widespread strong to severe thunderstorms and heavy rainfall with possible flooding from the Midwest and Ohio Valley to the Southern U.S. into late week. Record-breaking heat is possible in central California. Read More >

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 250845
WA6S
SFOS WA 250845
AIRMET SIERRA UPDT 1 FOR IFR AND MTN OBSCN VALID UNTIL 251500
.
AIRMET IFR...WA OR CA AND CSTL WTRS
FROM YDC TO 40NNW DSD TO 60SSW EUG TO 20SE FOT TO 80W FOT TO
50WNW TOU TO YDC
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 15Z ENDG 18-21Z.
.
AIRMET IFR...CA AND CSTL WTRS
FROM 40SSE OAK TO 20NE LAX TO 20SE MZB TO 220SW MZB TO 140SW SNS
TO 40SSE OAK
CIG BLW 010/VIS BLW 3SM BR. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...WA OR
FROM 40SE YDC TO 60SSW YKM TO 40SSE EUG TO 70WNW OED TO ONP TO
HQM TO TOU TO HUH TO 40SE YDC
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...WA OR ID MT WY
FROM 40ENE FCA TO 30WSW LWT TO 60SSW BIL TO 40ESE JAC TO 40SE
DLN TO 30SSW PDT TO 30ENE EPH TO 40ENE FCA
MTNS OBSC BY CLDS/PCPN. CONDS CONTG BYD 15Z THRU 21Z.
....



000
WAUS45 KKCI 250845
WA5S
SLCS WA 250845
AIRMET SIERRA UPDT 1 FOR IFR AND MTN OBSCN VALID UNTIL 251500
.
NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT.
.
AIRMET MTN OBSCN...ID MT WY WA OR
FROM 40ENE FCA TO 30WSW LWT TO 60SSW BIL TO 40ESE JAC TO 40SE
DLN TO 30SSW PDT TO 30ENE EPH TO 40ENE FCA
MTNS OBSC BY CLDS/PCPN. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...CO NM
FROM 40NNE PUB TO TBE TO 40NNW TCC TO 40W CIM TO 50SE DBL TO
40NNE PUB
MTNS OBSC BY CLDS. CONDS ENDG 09-12Z.
....


000
WAUS46 KKCI 250845
WA6T
SFOT WA 250845
AIRMET TANGO UPDT 1 FOR TURB VALID UNTIL 251500
.
NO SGFNT TURB EXP OUTSIDE OF CNVTV ACT.
....



000
WAUS45 KKCI 250845
WA5T
SLCT WA 250845
AIRMET TANGO UPDT 1 FOR TURB VALID UNTIL 251500
.
AIRMET TURB...UT CO AZ NM
FROM DVC TO ALS TO 40SSW TXO TO INK TO ELP TO 70N SJN TO DVC
MOD TURB BLW 150. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET TURB...CO
FROM GLD TO 50W LBL TO 30ESE TBE TO GLD
MOD TURB BLW 120. CONDS DVLPG AFT 12Z. CONDS CONTG BYD 15Z THRU
21Z.
.
AIRMET TURB...MT WY UT CO NM
FROM 50SE YQL TO 40NNW ISN TO 70SW RAP TO BFF TO GLD TO 50W LBL
TO 30ESE TBE TO INK TO 70E ELP TO 70ENE TCS TO 50ESE DVC TO 30NW
DBL TO BIL TO 50SE YQL
MOD TURB BTN FL180 AND FL410. CONDS CONTG BYD 15Z THRU 21Z.
....


000
WAUS46 KKCI 250845
WA6Z
SFOZ WA 250845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 251500
.
AIRMET ICE...WA OR ID MT WY
FROM YDC TO 50WSW YXC TO 40SW YQL TO 20WSW BIL TO 20S JAC TO
60WSW DBS TO 40WSW SEA TO 40W HUH TO YDC
MOD ICE BTN FRZLVL AND FL220. FRZLVL 090-110. CONDS CONTG BYD 15Z
THRU 21Z.
.
FRZLVL...RANGING FROM 070-165 ACRS AREA
080 ALG 30N TOU-60NNE GEG
120 ALG 160NW FOT-20SE ONP-50NE DSD-40WNW BOI
160 ALG 160SW RZS-130SW RZS-80S RZS-60SSE TRM
....



000
WAUS45 KKCI 250845
WA5Z
SLCZ WA 250845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 251500
.
AIRMET ICE...ID MT WY WA OR
FROM YDC TO 50WSW YXC TO 40SW YQL TO 20WSW BIL TO 20S JAC TO
60WSW DBS TO 40WSW SEA TO 40W HUH TO YDC
MOD ICE BTN FRZLVL AND FL220. FRZLVL 090-110. CONDS CONTG BYD 15Z
THRU 21Z.
.
FRZLVL...RANGING FROM SFC-160 ACRS AREA
SFC BOUNDED BY 50S BOY-70SSE BOY-50NW LAR-LAR-20SE LAR-30NNW
DEN-DEN-40NNW PUB-30W PUB-20NE ALS-20W ALS-40WNW ALS-40S
HBU-20WSW HBU-40SW DBL-20ENE OCS-60SSW BOY-50S BOY
080 ALG 60NNE GEG-40N MLP-20WNW FCA-60SW YQL-60WSW YQL
080 ALG 40ENE AKO-30SE AKO-20SSE LAA-60SE LAA
080 ALG 70SW DDY-40SSW DDY-20NE LAR-20WSW DEN-60SW DEN
120 ALG 40WNW BOI-20NW TWF-30ENE DTA-50NW TCS-20W INK
....

 

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