National Weather Service United States Department of Commerce

Pacific Storm System Impacting the West Coast

Another Pacific storm will bring additional rounds of heavy coastal and low elevation rain, mountain snow, and high winds to California and southern Oregon. Heavy rain with the potential for flash flooding and isolated strong to severe thunderstorms are possible across portions of the central Gulf coast. A winter storm will continue to impact the north and central interior of Alaska. Read More >

Seattle, WA

Center Weather Service Unit

ZSE AIRMETs

Weather.gov > Seattle, WA > ZSE AIRMETs

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 280845
WA6S
SFOS WA 280845
AIRMET SIERRA UPDT 1 FOR IFR AND MTN OBSCN VALID UNTIL 281500
.
AIRMET IFR...WA OR CA AND CSTL WTRS
FROM 40NE BTG TO 40ENE PDT TO 20NNE DNJ TO 20S BOI TO 40SE LKV
TO 40WNW FMG TO 20WNW SAC TO 40S OAK TO 130WSW SNS TO 130WSW ENI
TO 80W ENI TO 60WNW FOT TO 40SSW ONP TO 30NNE EUG TO 40NE BTG
CIG BLW 010/VIS BLW 3SM PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...WA OR CA ID MT NV
FROM 40NNW YKM TO 40ENE PDT TO 50NNW LKT TO 30WNW DBS TO TWF TO
70S BOI TO 40NNW REO TO 50ESE LKV TO 40SSW FMG TO SAC TO 30SW
SNS TO FOT TO HQM TO 40S SEA TO 40NNW YKM
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
OTLK VALID 1500-2100Z...IFR WA OR CA ID NV AND CSTL WTRS
BOUNDED BY 30NW YKM-90SSW MLP-40WSW LKT-BOI-50E LKV-70SSW REO-
70N FMG-30SSW OAL-CZQ-MOD-140SSW SNS-130WSW PYE-FOT-30NNW BTG-
30NW YKM
CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS CONTG THRU 21Z.
....



000
WAUS45 KKCI 280845
WA5S
SLCS WA 280845
AIRMET SIERRA UPDT 2 FOR IFR AND MTN OBSCN VALID UNTIL 281500
.
AIRMET IFR...CO
FROM 20NE SNY TO GLD TO 30ESE LAA TO 20SSW AKO TO 20NE SNY
CIG BLW 010/VIS BLW 3SM BR/FG. CONDS ENDG BY 15Z.
.
AIRMET IFR...MT
FROM 60ESE YXC TO 80SSW YYN TO 80NW ISN TO 60W ISN TO 30SSW GGW
TO 20NNW MLS TO 50SSW MLS TO 20WSW BIL TO 30WNW HLN TO 60ESE YXC
CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS CONTG BYD 15Z ENDG 15-
18Z.
.
AIRMET IFR...MT
FROM 80NW ISN TO 70WSW DIK TO 30NNE MLS TO 60W ISN TO 80NW ISN
CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS DVLPG AFT 09Z. CONDS
ENDG BY 15Z.
.
AIRMET MTN OBSCN...MT
FROM 40SSW YQL TO 30NE GTF TO 20NNW HVR TO 60SW MLS TO 40W BIL
TO 20NW HLN TO 60WNW HLN TO 40SSE YXC TO 40SSW YQL
MTNS OBSC BY CLDS/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET MTN OBSCN...ID MT NV WA OR CA
FROM 40NNW YKM TO 40ENE PDT TO 50NNW LKT TO 30WNW DBS TO TWF TO
70S BOI TO 40NNW REO TO 50ESE LKV TO 40SSW FMG TO SAC TO 30SW
SNS TO FOT TO HQM TO 40S SEA TO 40NNW YKM
MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 15Z THRU 21Z.
.
OTLK VALID 1500-2100Z...IFR ID NV WA OR CA AND CSTL WTRS
BOUNDED BY 30NW YKM-90SSW MLP-40WSW LKT-BOI-50E LKV-70SSW REO-
70N FMG-30SSW OAL-CZQ-MOD-140SSW SNS-130WSW PYE-FOT-30NNW BTG-
30NW YKM
CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS CONTG THRU 21Z.
....
000
WAUS46 KKCI 281128 AAA
WA6T
SFOT WA 281128 AMD
AIRMET TANGO UPDT 2 FOR TURB STG WNDS AND LLWS VALID UNTIL 281500
.
...SEE SIGMET OSCAR SERIES...UPDT
.
AIRMET TURB...WA OR CA ID NV AND CSTL WTRS
FROM YDC TO 60WSW YXC TO 40S MLP TO 20SSE DNJ TO 30NE REO TO
40NE OAL TO 50ENE CZQ TO 30SW PYE TO 130SW PYE TO 140WSW FOT TO
140W TOU TO 40W HUH TO YDC
MOD TURB BTN FL180 AND FL360. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET TURB...WA OR CA ID NV AND CSTL WTRS
FROM YDC TO 70SSE YDC TO 30SSE YKM TO 70S GEG TO 30WNW BAM TO
80WSW ELY TO 50SSE CZQ TO 20N SAC TO 100WSW PYE TO 140WSW FOT TO
140W TOU TO 20WNW HUH TO YDC
MOD TURB BLW FL180. CONDS CONTG BYD 15Z ENDG 18-21Z.
.
AIRMET STG SFC WNDS...WA AND CSTL WTRS
FROM 20N TOU TO 60SW HQM TO 130WSW HQM TO 140WSW TOU TO 20N TOU
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS ENDG 09-12Z.
.
AIRMET STG SFC WNDS...OR CA
FROM 50WSW LKV TO 50NW FMG TO 50E SAC TO 60WSW OED TO 50WSW LKV
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS CONTG BYD 15Z
THRU 21Z.
.
AIRMET STG SFC WNDS...CA AND CSTL WTRS
FROM 20ESE PYE TO 20S SNS TO 70SSW SNS TO 50WSW PYE TO 20ESE PYE
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 12-15Z.
CONDS CONTG BYD 15Z ENDG BY 18Z.
.
LLWS POTENTIAL...OR CA ID NV UT AND CSTL WTRS
BOUNDED BY 30SW PDT-20S BOI-50NNE TWF-50SE TWF-60SSW REO-60SE
FMG-30SW MOD-40SSW OAK-30SSW FOT-50SSW ONP-30NNE EUG-30SW PDT
LLWS EXP. CONDS CONTG BYD 15Z THRU 21Z.
.
OTLK VALID 1500-2100Z
AREA 1...TURB WA OR CA ID MT NV AND CSTL WTRS
BOUNDED BY YDC-60WNW HVR-20SSW BOI-70NE OAL-30NE CZQ-30SW PYE-
130SW PYE-140WSW FOT-140W TOU-YDC
MOD TURB BTN FL180 AND FL360. CONDS CONTG THRU 21Z.
.
AREA 2...STG SFC WNDS OR CA AND CSTL WTRS
BOUNDED BY 150W ONP-80SW EUG-50NNE FOT-20S FOT-80SW FOT-130WSW
ENI-140WSW FOT-150W ONP
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS DVLPG 15-18Z.
CONDS CONTG THRU 21Z.
.
AREA 3...STG SFC WNDS OR CA NV
BOUNDED BY 50ESE OED-50ENE FMG-70SSW BAM-70NE OAL-30NNW OAL-
30WSW OAL-50W BTY-60ENE EHF-50NNE SAC-60SSW OED-50ESE OED
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS CONTG THRU 21Z.
....



000
WAUS45 KKCI 281128 AAA
WA5T
SLCT WA 281128 AMD
AIRMET TANGO UPDT 2 FOR TURB STG WNDS AND LLWS VALID UNTIL 281500
.
...SEE SIGMET OSCAR SERIES...UPDT
.
AIRMET TURB...ID NV WA OR CA AND CSTL WTRS
FROM YDC TO 60WSW YXC TO 40S MLP TO 20SSE DNJ TO 30NE REO TO
40NE OAL TO 50ENE CZQ TO 30SW PYE TO 130SW PYE TO 140WSW FOT TO
140W TOU TO 40W HUH TO YDC
MOD TURB BTN FL180 AND FL360. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET TURB...ID MT WY CO NM
FROM 50WSW YXC TO 60NW GGW TO 60SW DIK TO 70SW RAP TO BFF TO GLD
TO 50W LBL TO 30ESE TBE TO 70SSE TBE TO 30SSE ALS TO 20SE HBU TO
30ENE OCS TO 40S MLP TO 50WSW YXC
MOD TURB BTN FL180 AND FL340. CONDS CONTG BYD 15Z ENDG 18-21Z.
.
AIRMET TURB...ID MT WY
FROM 50SSW BIL TO 40S BOY TO 20W BPI TO 60ESE DLN TO 50SSW BIL
MOD TURB BLW 150. CONDS DVLPG 12-15Z. CONDS CONTG BYD 15Z ENDG
15-18Z.
.
AIRMET TURB...WY CO
FROM DDY TO 60NNW BFF TO 50W PUB TO 20SW HBU TO DDY
MOD TURB BLW FL180. CONDS DVLPG 09-12Z. CONDS CONTG BYD 15Z ENDG
15-18Z.
.
AIRMET TURB...NM
FROM 50SSW TXO TO INK TO ELP TO 50SSW TXO
MOD TURB BLW 100. CONDS CONTG BYD 15Z ENDG 15-18Z.
.
AIRMET TURB...ID NV WA OR CA AND CSTL WTRS
FROM YDC TO 70SSE YDC TO 30SSE YKM TO 70S GEG TO 30WNW BAM TO
80WSW ELY TO 50SSE CZQ TO 20N SAC TO 100WSW PYE TO 140WSW FOT TO
140W TOU TO 20WNW HUH TO YDC
MOD TURB BLW FL180. CONDS CONTG BYD 15Z ENDG 18-21Z.
.
LLWS POTENTIAL...ID NV UT OR CA AND CSTL WTRS
BOUNDED BY 30SW PDT-20S BOI-50NNE TWF-50SE TWF-60SSW REO-60SE
FMG-30SW MOD-40SSW OAK-30SSW FOT-50SSW ONP-30NNE EUG-30SW PDT
LLWS EXP. CONDS CONTG BYD 15Z THRU 21Z.
.
OTLK VALID 1500-2100Z
AREA 1...TURB ID MT NV WA OR CA AND CSTL WTRS
BOUNDED BY YDC-60WNW HVR-20SSW BOI-70NE OAL-30NE CZQ-30SW PYE-
130SW PYE-140WSW FOT-140W TOU-YDC
MOD TURB BTN FL180 AND FL360. CONDS CONTG THRU 21Z.
.
AREA 2...STG SFC WNDS NV OR CA
BOUNDED BY 50ESE OED-50ENE FMG-70SSW BAM-70NE OAL-30NNW OAL-
30WSW OAL-50W BTY-60ENE EHF-50NNE SAC-60SSW OED-50ESE OED
SUSTAINED SURFACE WINDS GTR THAN 30KT EXP. CONDS CONTG THRU 21Z.
....
000
WAUS46 KKCI 280845
WA6Z
SFOZ WA 280845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 281500
.
AIRMET ICE...WA OR CA ID MT NV UT AND CSTL WTRS
FROM 30E TOU TO 70W HLN TO 40ESE DLN TO 40SSE DBS TO 30WSW PIH TO
70S BOI TO 50SSE FMG TO 50NE EHF TO 40SW EHF TO 130SW PYE TO
140SW FOT TO 90W OED TO 130WSW TOU TO 30E TOU
MOD ICE BTN FRZLVL AND FL210. FRZLVL 020-080. CONDS CONTG BYD 15Z
THRU 21Z.
.
FRZLVL...RANGING FROM SFC-110 ACRS AREA
MULT FRZLVL BLW 080 BOUNDED BY 40S DNJ-60E BOI-20NE TWF-50SSE
BAM-40NW OAL-70S FMG-50NW FMG-70SSW BKE-40S DNJ
SFC ALG 20WNW HUH-40S EPH-20W PDT-40ESE OED-70SSW OAL-20W BTY
040 ALG 140WSW ENI-30NW RBL-80SSE OED
080 ALG 140SW SNS-60SSE SNS-30ESE EHF-30SW LAS
....



000
WAUS45 KKCI 280845
WA5Z
SLCZ WA 280845
AIRMET ZULU UPDT 1 FOR ICE AND FRZLVL VALID UNTIL 281500
.
AIRMET ICE...MT
FROM 60WSW YQL TO 50NNW ISN TO 100SE MLS TO 30E BIL TO 50WNW GTF
TO 60WSW YQL
MOD ICE BLW 120. CONDS CONTG BYD 15Z THRU 21Z.
.
AIRMET ICE...ID MT NV UT WA OR CA AND CSTL WTRS
FROM 30E TOU TO 70W HLN TO 40ESE DLN TO 40SSE DBS TO 30WSW PIH TO
70S BOI TO 50SSE FMG TO 50NE EHF TO 40SW EHF TO 130SW PYE TO
140SW FOT TO 90W OED TO 130WSW TOU TO 30E TOU
MOD ICE BTN FRZLVL AND FL210. FRZLVL 020-080. CONDS CONTG BYD 15Z
THRU 21Z.
.
FRZLVL...RANGING FROM SFC-120 ACRS AREA
MULT FRZLVL BLW 080 BOUNDED BY 40S DNJ-60E BOI-20NE TWF-50SSE
BAM-40NW OAL-70S FMG-50NW FMG-70SSW BKE-40S DNJ
MULT FRZLVL BLW 120 BOUNDED BY 40NNE DTA-20ESE BCE-70S FTI-
30SW TXO-INK-ELP-20N SSO-30SSW DRK-30WNW PGS-30SW BTY-
30SSE OAL-40NNE DTA
SFC ALG 20W BTY-40N LAS-40N PGS-60NNE SSO-40SSW CME-70WSW LBB
080 ALG 30SW LAS-30SE PGS-40ENE DMN-ELP
....

 

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

 

 

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