National Weather Service United States Department of Commerce

Winter Weather Conditions for the West; Severe Weather Potential for the South on Tuesday

A strong cold front will track across the Intermountain West today accompanied by strong winds, heavy snow and elevated fire weather conditions for portions of the western High Plains. This storm is forecast to intensify on Tuesday across the Plains. Moisture will quickly advance northward across the middle and lower Mississippi Valley where tornadoes and damaging winds are expected. 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 282045
WA6S
SFOS WA 282045
AIRMET SIERRA UPDT 3 FOR IFR AND MTN OBSCN VALID UNTIL 290300
.
AIRMET IFR...CA
FROM 40NNE RBL TO 80ENE RBL TO 60W OAL TO 30NNE CZQ TO 30SE RBL
TO 40NNE RBL
CIG BLW 010/VIS BLW 3SM BR. CONDS DVLPG 21-00Z. CONDS CONTG BYD
03Z ENDG 03-06Z.
.
AIRMET IFR...CA
FROM 40N LAX TO 30SSW HEC TO 70ESE MZB TO 30SSE MZB TO 50W TRM
TO 20ENE LAX TO 40N LAX
CIG BLW 010/VIS BLW 3SM BR. CONDS DVLPG 00-03Z. CONDS CONTG BYD
03Z THRU 09Z.
.
AIRMET IFR...OR CA
FROM 60ESE BTG TO 70SE OED TO 40E FOT TO 60W OED TO 70SW EUG TO
20SSE EUG TO 30SSW BTG TO 60ESE BTG
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET IFR...WA OR ID MT
FROM 50ESE YXC TO 70W HLN TO 30NNW LKT TO 30NE PIH TO 20SSW BOI
TO 50SW DNJ TO 90SW BKE TO 40E DSD TO 70S YKM TO 40SSW GEG TO
70ESE YDC TO 50ESE YXC
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET MTN OBSCN...CA
FROM 70ESE EHF TO 20S HEC TO 50WSW BZA TO 20S MZB TO LAX TO
30WSW RZS TO 70ESE EHF
MTNS OBSC BY CLDS/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET MTN OBSCN...WA OR CA ID MT WY NV UT CO
FROM 50ESE YXC TO 30ENE LKT TO 20E DBS TO SHR TO CYS TO 20NW ALS
TO 70WSW ELY TO 50NNE CZQ TO 60SE RBL TO 30SSW ENI TO FOT TO
40SSE TOU TO 60SSW YDC TO 30WSW GEG TO 80ESE YDC TO 50ESE YXC
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
....



000
WAUS45 KKCI 282045
WA5S
SLCS WA 282045
AIRMET SIERRA UPDT 3 FOR IFR AND MTN OBSCN VALID UNTIL 290300
.
AIRMET IFR...ID NV UT
FROM 20SSW BOI TO 30NE PIH TO 20S BVL TO 40SW ELY TO 40NNE OAL
TO 60E FMG TO 20W BAM TO REO TO 20SSW BOI
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS DVLPG 00-03Z. CONDS CONTG
BYD 03Z THRU 09Z.
.
AIRMET IFR...ID MT WA OR
FROM 50ESE YXC TO 70W HLN TO 30NNW LKT TO 30NE PIH TO 20SSW BOI
TO 50SW DNJ TO 90SW BKE TO 40E DSD TO 70S YKM TO 40SSW GEG TO
70ESE YDC TO 50ESE YXC
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET IFR...WY UT CO
FROM 20SSE SHR TO 50WSW RAP TO BFF TO CYS TO 50WNW PUB TO 50SW
HBU TO 30NNW DVC TO 30NW JNC TO 40S MTU TO 60NNW BOY TO 20SSE SHR
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET IFR...ID WY UT
FROM 70NNE JAC TO 60NNW BOY TO 40S MTU TO 20SW HVE TO 40NW BCE
TO 20S BVL TO 30NE PIH TO 30WSW DBS TO 70NNE JAC
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET MTN OBSCN...ID MT WY NV UT CO WA OR CA
FROM 50ESE YXC TO 30ENE LKT TO 20E DBS TO SHR TO CYS TO 20NW ALS
TO 70WSW ELY TO 50NNE CZQ TO 60SE RBL TO 30SSW ENI TO FOT TO
40SSE TOU TO 60SSW YDC TO 30WSW GEG TO 80ESE YDC TO 50ESE YXC
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z.
.
OTLK VALID 0300-0900Z...IFR ID MT WY UT CO NM
BOUNDED BY 40SW BIL-50NNW BOY-50W RAP-70SW RAP-20SE SNY-60WNW
PUB-30SSW ALS-20NNW RSK-HVE-40ESE BCE-30WSW BCE-20SSW BVL-20NNW
PIH-50NNE JAC-80WSW BIL-40SW BIL
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG THRU 09Z.
....


000
WAUS46 KKCI 282045
WA6T
SFOT WA 282045
AIRMET TANGO UPDT 3 FOR TURB STG WNDS AND LLWS VALID UNTIL 290300
.
AIRMET TURB...OR CA WY NV UT CO AZ NM AND CSTL WTRS
FROM 50WNW RAP TO 20WNW LAA TO INK TO ELP TO 40SSW DMN TO 40SSW
ABQ TO 60N SJN TO 20NW PHX TO BZA TO 20SE MZB TO 20SSW LAX TO
20E CZQ TO RBL TO 30SE OED TO 40NW BAM TO 30SSE BPI TO 50WNW RAP
MOD TURB BTN FL180 AND FL420. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...WA OR CA ID MT WY NV UT AND CSTL WTRS
FROM 40SSE YDC TO 30ENE BKE TO 20SE DLN TO 30SW ISN TO 50WNW RAP
TO 30SSE BPI TO 40NW BAM TO 30SE OED TO 20W ONP TO 100W TOU TO
40SSE YDC
MOD TURB BTN 150 AND FL350. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...OR CA ID NV UT
FROM 40ESE BOI TO 50SW PIH TO 40ESE BVL TO 30SSE ILC TO 40SW BTY
TO 30S EHF TO 40E MOD TO 40N SAC TO 40WSW LKV TO 40NNE LKV TO
40ESE BOI
MOD TURB BLW 150. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...CA
FROM 40SW BTY TO 20NE LAS TO 30NNW EED TO 30NE TRM TO 30WSW BZA
TO 30SE MZB TO 50E LAX TO 30S EHF TO 40SW BTY
MOD TURB BLW 120. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...CA
FROM 70SSE FMG TO 60S OAL TO 60NE EHF TO 60ENE MOD TO 70SSE FMG
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS ENDG BY 00Z.
.
AIRMET STG SFC WNDS...CA AND CSTL WTRS
FROM 70SSE SNS TO 30WSW RZS TO 40WSW LAX TO 70SSW LAX TO 100SSW
RZS TO 100WSW RZS TO 80SSW SNS TO 70SSE SNS
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 21-00Z.
CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...CA
FROM 40N HEC TO 60SSE TRM TO 30E MZB TO 40WNW HEC TO 40N HEC
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 00-03Z.
CONDS CONTG BYD 03Z ENDG BY 06Z.
.
LLWS POTENTIAL...CA NV AZ
BOUNDED BY 30NW FMG-60NNW OAL-40WSW BTY-30SSE LAS-50SE HEC-40W
BZA-30SE MZB-50SW HEC-50SSE EHF-50SE CZQ-60W FMG-30NW FMG
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
....



000
WAUS45 KKCI 282045
WA5T
SLCT WA 282045
AIRMET TANGO UPDT 6 FOR TURB STG WNDS AND LLWS VALID UNTIL 290300
.
...SEE SIGMET UNIFORM SERIES...
.
AIRMET TURB...WY NV UT CO AZ NM OR CA AND CSTL WTRS
FROM 50WNW RAP TO 20WNW LAA TO INK TO ELP TO 40SSW DMN TO 40SSW
ABQ TO 60N SJN TO 20NW PHX TO BZA TO 20SE MZB TO 20SSW LAX TO
20E CZQ TO RBL TO 30SE OED TO 40NW BAM TO 30SSE BPI TO 50WNW RAP
MOD TURB BTN FL180 AND FL420. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...ID MT WY NV UT WA OR CA AND CSTL WTRS
FROM 40SSE YDC TO 30ENE BKE TO 20SE DLN TO 30SW ISN TO 50WNW RAP
TO 30SSE BPI TO 40NW BAM TO 30SE OED TO 20W ONP TO 100W TOU TO
40SSE YDC
MOD TURB BTN 150 AND FL350. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...ID NV UT OR CA
FROM 40ESE BOI TO 50SW PIH TO 40ESE BVL TO 30SSE ILC TO 40SW BTY
TO 30S EHF TO 40E MOD TO 40N SAC TO 40WSW LKV TO 40NNE LKV TO
40ESE BOI
MOD TURB BLW 150. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET TURB...MT
FROM 80SSW YYN TO 50NNW ISN TO 40WSW DIK TO 40NE MLS TO 50S GGW
TO 80SSW YYN
MOD TURB BLW 050. CONDS CONTG BYD 03Z ENDG 03-06Z.
.
AIRMET TURB...ID WY NV UT CO AZ NM
FROM 30SE DDY TO 40W BFF TO 20NE TBE TO INK TO ELP TO 50SSW SSO
TO 50E PHX TO 20N EED TO 40NNE LAS TO 30SE BVL TO 20W BPI TO
30SE DDY
MOD TURB BLW FL180. CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...NM
FROM 80SE ABQ TO 20W CME TO 50SSE CME TO 60W INK TO 70ESE ELP TO
50NE ELP TO 20E TCS TO 80SE ABQ
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 21-00Z.
CONDS CONTG BYD 03Z THRU 09Z.
.
AIRMET STG SFC WNDS...CO NM
FROM 50SSW DEN TO 50S PUB TO 20WNW FTI TO 40SSW HBU TO 50SSW DEN
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS CONTG BYD 03Z
THRU 09Z.
.
LLWS POTENTIAL...WY NV UT CO AZ NM
BOUNDED BY 40N LAR-40SW BFF-30E PUB-50NNE CME-20W INK-ELP-40W
DMN-40WSW PGS-40S ILC-40N LAR
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
.
LLWS POTENTIAL...NV AZ CA
BOUNDED BY 30NW FMG-60NNW OAL-40WSW BTY-30SSE LAS-50SE HEC-40W
BZA-30SE MZB-50SW HEC-50SSE EHF-50SE CZQ-60W FMG-30NW FMG
LLWS EXP. CONDS CONTG BYD 03Z THRU 09Z.
.
OTLK VALID 0300-0900Z...STG SFC WNDS AZ NM
BOUNDED BY 30SE INW-40E SJN-20NNW TCS-40SW TCS-60SW SJN-30SE INW
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 03-06Z.
CONDS CONTG THRU 09Z.
....


000
WAUS46 KKCI 281445
WA6Z
SFOZ WA 281445
AIRMET ZULU UPDT 2 FOR ICE AND FRZLVL VALID UNTIL 282100
.
AIRMET ICE...CA
FROM 30SW LAS TO 50SW EED TO 50E LAX TO 20NW LAX TO 60E EHF TO
30SW LAS
MOD ICE BTN FL200 AND FL250. CONDS ENDG 15-18Z.
.
AIRMET ICE...WA OR CA
FROM 60SW YXC TO 50SE REO TO 40SE LKV TO 100SSE LKV TO 70SSW LKV
TO 20WSW LKV TO 30SE DSD TO 20SW YKM TO 60NW EPH TO 90ESE YDC TO
60SW YXC
MOD ICE BLW 170. CONDS CONTG BYD 21Z THRU 03Z.
.
AIRMET ICE...WA OR CA AND CSTL WTRS
FROM 70SSE YDC TO YKM TO 70S LKV TO 60S OED TO 60N FOT TO 110W
OED TO 100WSW ONP TO 130WNW ONP TO 90WSW HQM TO 60S HQM TO 50SW
SEA TO 70SSE YDC
MOD ICE BTN FRZLVL AND 140. FRZLVL SFC-050. CONDS CONTG BYD 21Z
THRU 03Z.
.
OTLK VALID 2100-0300Z...ICE WA OR CA ID MT WY NV UT CO
BOUNDED BY 40S YXC-50WNW RAP-SNY-20E CYS-60WNW PUB-50SW HBU-20N
BCE-50E ILC-40SSE ELY-80SW BAM-70SSW LKV-60SSE DSD-50SSW YKM-40SE
YKM-40SSE EPH-30W GEG-90ESE YDC-40S YXC
MOD ICE BLW 170. CONDS CONTG THRU 03Z.
.
FRZLVL...RANGING FROM SFC-120 ACRS AREA
MULT FRZLVL BLW 120 BOUNDED BY 50WSW FMG-20W BTY-30NNE CZQ-
50WSW FMG
SFC ALG 30NNW TOU-20WSW SEA-30ENE BTG-70SW LKV-60WSW OAL-50W
BTY-20W BTY
040 ALG 130W FOT-20E FOT-70SSE OED
080 ALG 130SW PYE-80SSW PYE-70ESE CZQ-20SSE BTY
....



000
WAUS45 KKCI 281445
WA5Z
SLCZ WA 281445
AIRMET ZULU UPDT 2 FOR ICE AND FRZLVL VALID UNTIL 282100
.
AIRMET ICE...ID WY UT CO
FROM 50NNW RAP TO 70SW RAP TO BFF TO 30NE DBL TO 30ENE MTU TO 80S
LKT TO 50N JAC TO 30SSE SHR TO 50NNW RAP
MOD ICE BLW 170. CONDS CONTG BYD 21Z THRU 03Z.
.
AIRMET ICE...ID MT WY NV UT
FROM 60SW YXC TO 50SSE YXC TO 50S MLP TO 80S LKT TO 30ENE MTU TO
40WNW HVE TO 50E ILC TO 40W ELY TO 100SSE LKV TO 40SE LKV TO 50SE
REO TO 60SW YXC
MOD ICE BLW 170. CONDS CONTG BYD 21Z THRU 03Z.
.
OTLK VALID 2100-0300Z...ICE ID MT WY NV UT CO WA OR CA
BOUNDED BY 40S YXC-50WNW RAP-SNY-20E CYS-60WNW PUB-50SW HBU-20N
BCE-50E ILC-40SSE ELY-80SW BAM-70SSW LKV-60SSE DSD-50SSW YKM-40SE
YKM-40SSE EPH-30W GEG-90ESE YDC-40S YXC
MOD ICE BLW 170. CONDS CONTG THRU 03Z.
.
FRZLVL...RANGING FROM SFC-120 ACRS AREA
MULT FRZLVL BLW 120 BOUNDED BY 50ESE DDY-50NNW BFF-BFF-GLD-
50W LBL-30ESE TBE-30ESE TCC-50E ELP-40SW DMN-20NW DRK-
40SSW HBU-30N ALS-50ESE DDY
MULT FRZLVL BLW 120 BOUNDED BY 50SE MLD-40NNW JNC-40SSW HBU-
20NW DRK-20W BTY-50WSW FMG-50SE MLD
SFC ALG 20W BTY-60N LAS-30ENE INW-30ESE SJN-50SSW ABQ-40S TBE-
50SSE TBE
080 ALG 20SSE BTY-20NNE LAS-30E SJN-40SW ABQ-30SW CIM
....

 

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