National Weather Service United States Department of Commerce

Showers and Thunderstorms and Areas of Critical Fire Weather Threats

A series of cold fronts will produce showers and a few strong thunderstorms across parts of the High Plains and into the northern Rockies, and the Mid-Atlantic. Strong, dry winds in the northern Plains, 4-Corners area, and the Southeast will produce critical fire weather threats. Fire weather threats also remain elevated in Guam. Locally heavy rain may cause flash flooding in Hawaii. 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 070845
WA6S
SFOS WA 070845
AIRMET SIERRA UPDT 1 FOR IFR AND MTN OBSCN VALID UNTIL 071500
.
AIRMET IFR...CA AND CSTL WTRS
FROM 20SE OAK TO 20NE RZS TO 50SW HEC TO 40ESE MZB TO 220SW MZB
TO 170WSW RZS TO 40SSW OAK TO 20SE OAK
CIG BLW 010/VIS BLW 3SM BR/FG. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...WA OR ID MT
FROM 30SSW YQL TO 20E GTF TO 50SSE LKT TO 30E BOI TO 40NNW REO
TO 30SE DSD TO 40W PDT TO 60SSE EPH TO 30SSE GEG TO 50SE YXC TO
30SSW YQL
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...CA
FROM 20WSW SAC TO 50W EHF TO 30SW HEC TO 60S TRM TO 30SSW MZB TO
20SSE LAX TO 50W RZS TO 20SW PYE TO 20WSW SAC
MTNS OBSC BY CLDS/BR/FG. CONDS CONTG BYD 15Z ENDG 18-21Z.
.
AIRMET MTN OBSCN...WA OR CA
FROM 20NE HUH TO 50ESE YDC TO 50NW EPH TO 60SSW YKM TO 50ESE OED
TO 40N RBL TO 40NW ENI TO 20S FOT TO 70WNW OED TO 60NNW ONP TO
20W TOU TO 20NE HUH
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
....



119
WAUS45 KKCI 070845
WA5S
SLCS WA 070845
AIRMET SIERRA UPDT 1 FOR IFR AND MTN OBSCN VALID UNTIL 071500
.
NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT.
.
AIRMET MTN OBSCN...ID MT WA OR
FROM 30SSW YQL TO 20E GTF TO 50SSE LKT TO 30E BOI TO 40NNW REO
TO 30SE DSD TO 40W PDT TO 60SSE EPH TO 30SSE GEG TO 50SE YXC TO
30SSW YQL
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
....



496
WAUS46 KKCI 070845
WA6T
SFOT WA 070845
AIRMET TANGO UPDT 1 FOR TURB AND STG SFC WNDS VALID UNTIL 071500
.
AIRMET TURB...WA OR CA AND CSTL WTRS
FROM 50ESE YDC TO 40SE EUG TO 40SSW RBL TO 130SW PYE TO 140WSW
FOT TO 110W ONP TO 140W TOU TO 20ENE HUH TO 50ESE YDC
MOD TURB BTN FL180 AND FL380. CONDS DVLPG 09-12Z. CONDS CONTG
BYD 15Z THRU 21Z.
.
AIRMET TURB...WA OR CA ID NV AND CSTL WTRS
FROM 70ESE YDC TO 50NNE GEG TO 20W DNJ TO 20SW REO TO 20NNW RZS
TO 150SW RZS TO 120SW PYE TO 40SSW RBL TO 40SE EUG TO 50NNW EPH
TO 70ESE YDC
MOD TURB BTN FL240 AND FL360. CONDS CONTG BYD 15Z ENDG 15-18Z.
.
AIRMET STG SFC WNDS...CA AND CSTL WTRS
FROM 60SW FOT TO 30NNW ENI TO 20SSW ENI TO 20SE PYE TO 60SSW OAK
TO 90SW PYE TO 90W ENI TO 60SW FOT
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 09-12Z.
CONDS CONTG BYD 15Z THRU 21Z.
.
OTLK VALID 1500-2100Z...TURB WA OR CA AND CSTL WTRS
BOUNDED BY 80E YDC-40SSE GEG-40SW CZQ-140SSW SNS-140WSW FOT-110W
ONP-140W TOU-80E YDC
MOD TURB BTN FL180 AND FL380. CONDS CONTG THRU 21Z.
....




000
WAUS45 KKCI 070845
WA5T
SLCT WA 070845
AIRMET TANGO UPDT 1 FOR TURB AND LLWS VALID UNTIL 071500
.
AIRMET TURB...ID NV WA OR CA AND CSTL WTRS
FROM 70ESE YDC TO 50NNE GEG TO 20W DNJ TO 20SW REO TO 20NNW RZS
TO 150SW RZS TO 120SW PYE TO 40SSW RBL TO 40SE EUG TO 50NNW EPH
TO 70ESE YDC
MOD TURB BTN FL240 AND FL360. CONDS CONTG BYD 15Z ENDG 15-18Z.
.
LLWS POTENTIAL...CO NM
BOUNDED BY 20W SNY-GLD-50W LBL-30ESE TBE-60SSW TXO-40NNE CME-
30SSE FTI-50NNW LAA-20W SNY
LLWS EXP. CONDS ENDG BY 15Z.
....


901
WAUS46 KKCI 070845
WA6Z
SFOZ WA 070845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 071500
.
AIRMET ICE...WA OR AND CSTL WTRS
FROM 30SE YDC TO 40WSW PDT TO 40E DSD TO 20NE OED TO 80SW EUG TO
60SW ONP TO 130WSW ONP TO 120WNW ONP TO 140W TOU TO 30W HUH TO
30SE YDC
MOD ICE BTN FRZLVL AND 150. FRZLVL 030-050. CONDS CONTG BYD 15Z
THRU 21Z.
.
AIRMET ICE...WA OR ID MT NV
FROM 50NNE HVR TO 70WSW GGW TO 20SW DLN TO 40WSW DBS TO 30N TWF
TO 70ENE BAM TO 70NNE FMG TO 40S BKE TO 30W BKE TO 70ESE YDC TO
40SSE YQL TO 50NNE HVR
MOD ICE BTN FRZLVL AND FL220. FRZLVL 070-120. CONDS CONTG BYD 15Z
THRU 21Z.
.
OTLK VALID 1500-2100Z
AREA 1...ICE WA OR ID MT AND CSTL WTRS
BOUNDED BY 20NNW HUH-60WSW YXC-30WSW DNJ-40E DSD-30ENE OED-80SSW
ONP-50WSW HQM-90W TOU-20NNW HUH
MOD ICE BTN FRZLVL AND 150. FRZLVL 030-070. CONDS CONTG THRU 21Z.
.
AREA 2...ICE WA OR ID MT WY NV UT
BOUNDED BY 60WSW YXC-60SSW YXH-70NE GGW-60S GGW-60SW LWT-50ENE
DBS-30WNW SLC-50W BVL-50N BAM-BOI-30WSW DNJ-60WSW YXC
MOD ICE BTN FRZLVL AND FL200. FRZLVL 070-120. CONDS CONTG THRU
21Z.
.
FRZLVL...RANGING FROM 025-140 ACRS AREA
MULT FRZLVL 050-110 BOUNDED BY 40SSE MLP-60NNW LKT-20S BKE-
70S LKV-50SSW FOT-150WSW FOT-130WNW FOT-70NNW FOT-50WNW
LKV-40SSE MLP
040 ALG 150WNW FOT-80W OED-40S EUG-40WNW DSD-50WSW YKM-40WSW
YDC
080 ALG 140WSW FOT-50NNE RBL-60ESE LKV-40WNW BOI
120 ALG 140SSW SNS-70SE SNS-50SSE CZQ-70SSW OAL-40SSW OAL
....




000
WAUS45 KKCI 070845
WA5Z
SLCZ WA 070845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 071500
.
AIRMET ICE...ID MT NV WA OR
FROM 50NNE HVR TO 70WSW GGW TO 20SW DLN TO 40WSW DBS TO 30N TWF
TO 70ENE BAM TO 70NNE FMG TO 40S BKE TO 30W BKE TO 70ESE YDC TO
40SSE YQL TO 50NNE HVR
MOD ICE BTN FRZLVL AND FL220. FRZLVL 070-120. CONDS CONTG BYD 15Z
THRU 21Z.
.
OTLK VALID 1500-2100Z
AREA 1...ICE ID MT WA OR AND CSTL WTRS
BOUNDED BY 20NNW HUH-60WSW YXC-30WSW DNJ-40E DSD-30ENE OED-80SSW
ONP-50WSW HQM-90W TOU-20NNW HUH
MOD ICE BTN FRZLVL AND 150. FRZLVL 030-070. CONDS CONTG THRU 21Z.
.
AREA 2...ICE ID MT WY NV UT WA OR
BOUNDED BY 60WSW YXC-60SSW YXH-70NE GGW-60S GGW-60SW LWT-50ENE
DBS-30WNW SLC-50W BVL-50N BAM-BOI-30WSW DNJ-60WSW YXC
MOD ICE BTN FRZLVL AND FL200. FRZLVL 070-120. CONDS CONTG THRU
21Z.
.
FRZLVL...RANGING FROM 050-150 ACRS AREA
MULT FRZLVL 050-110 BOUNDED BY 40SSE MLP-60NNW LKT-20S BKE-
70S LKV-50SSW FOT-150WSW FOT-130WNW FOT-70NNW FOT-50WNW
LKV-40SSE MLP
080 ALG 40WNW BOI-60NW LKT-60SE MLP-20WSW FCA-40SE YXC
120 ALG 40SSW OAL-50NW ELY-20E DLN-40ESE GTF-50SE HVR-50SSE
MLS-50W RAP
....

 

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