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AWC Home > Notice 06-31 Technical Implementation Notice 06-31 Formatted Text AIRMET Examples Go To:    Technical Implementation Notice 06-31    Frequently Asked Questions (FAQ) 1. ALL AIRMETS 2. AIRMET SIERRA 3. AIRMET TANGO 4. AIRMET ZULU 1. ALL AIRMETS The frequency of the hazard occurrence (OCNL and FRQ) will no longer be included. OLD DFWZ WA 232045 AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 240300 . AIRMET ICE...AR TN MS AL FROM HMV TO GQO TO LGC TO 40W JAN TO 30WNW ARG TO HMV OCNL MOD RIME/MXD ICGICIP BTN FRZLVL AND 150. FRZLVL SFC-040. CONDS MOVG EWD CONTG BYD 03Z THRU 09Z. NEW DFWZ WA 232045 AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 240300 . AIRMET ICE...AR TN MS AL FROM HMV TO GQO TO LGC TO 40W JAN TO 30WNW ARG TO HMV MOD ICE BTN FRZLVL AND 150. FRZLVL SFC-040. CONDS CONTG BYD 03Z THRU 09Z. Trend remarks will no longer be included.. OLD DFWZ WA 232045 AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 240300 . AIRMET ICE...AR TN MS AL FROM HMV TO GQO TO LGC TO 40W JAN TO 30WNW ARG TO HMV OCNL MOD RIME/MXD ICGICIP BTN FRZLVL AND 150. FRZLVL SFC-040. CONDS MOVG EWD AND CONTG BYD 03Z THRU 09Z. NEW DFWZ WA 232045 AIRMET ZULU UPDT 3 FOR ICE AND FRZLVL VALID UNTIL 240300 . AIRMET ICE...AR TN MS AL FROM HMV TO GQO TO LGC TO 40W JAN TO 30WNW ARG TO HMV MOD ICE BTN FRZLVL AND 150. FRZLVL SFC-040. CONDS CONTG BYD 03Z THRU 09Z. The 6 to 12-hour forecast outlook area will be delineated with high altitude VOR locations preceded with the BOUNDED BY descriptor. OLD OTLK VALID 0300-0900Z...ICE MN WI LM LS MI LH IL IN OCNL MOD RIME/MXD ICGICIP BTN 030 AND 120 DVLPG OVR WRN GRTLKS AFT 03Z. CONDS CONTG THRU 09Z. NEW OTLK VALID 0300-0900Z...ICE MN WI LM LS MI LH IL IN BOUNDED BY 60W YQT-30SSE SSM-DXO-FWA-20SW JOT-40NNW DLL-30W EAU-20S BRD-70SW YQT-60W YQT MOD ICE BTN 030 AND 120. CONDS DVLPG AFT 03Z CONTG THRU 09Z. The reason for amending, correcting or canceling an AIRMET will no longer be included. SIGMET reference statements will not reference the SIGMET hazard. Statements such as FOR AREAS OF POSS SEV TURB and FOR AREAS OF SEV ICE will no longer be included. Instead the statement SEE SIGMET [NAME] SERIES will be used. OLD MIAT WA 141630 AMD AIRMET TANGO UPDT 3 FOR TURB VALID UNTIL 142100 . ...SEE SIGMET VICTOR SERIES FOR POSS SEV TURB...UPDT . AIRMET TURB...NC SC GA FL AND CSTL WTRS FROM 20NE ECG TO 180E ECG TO 190ESE ECG TO 130SSE ILM TO CTY TO 40NW TLH TO GQO TO HMV TO 20NE ECG OCNL MOD TURB BLW 120 DUE TO STG LOW LVL WNDS. CONDS CONTG BYD 21Z THRU 03Z. ...UPDT TO ADD REFERENCE TO SIGMET SERIES VICTOR... NEW MIAT WA 141630 AMD AIRMET TANGO UPDT 3 FOR TURB VALID UNTIL 142100 . ...SEE SIGMET VICTOR SERIES...UPDT . AIRMET TURB...NC SC GA FL AND CSTL WTRS FROM 20NE ECG TO 180E ECG TO 190ESE ECG TO 130SSE ILM TO CTY TO 40NW TLH TO GQO TO HMV TO 20NE ECG MOD TURB BLW 120. CONDS CONTG BYD 21Z THRU 03Z. 2. AIRMET SIERRA AIRMET IFR: The cause of the visibility restriction will be limited to PCPN, FU, HZ, BR, FG and BLSN. OLD SFOS WA 222045 AIRMET SIERRA FOR IFR VALID UNTIL 230300 . AIRMET IFR...CA FROM 30NW FMG TO 40SSW FMG TO 70WNW OAL TO 20WNW CZQ TO 20SW MOD TO 40ESE RBL TO 30NW FMG OCNL CIG BLW 010/VIS BLW 3SM -RA/BR/FG. CONDS CONTG BYD 03Z THRU 09Z. NEW SFOS WA 222045 AIRMET SIERRA FOR IFR VALID UNTIL 230300 . AIRMET IFR...CA FROM 30NW FMG TO 40SSW FMG TO 70WNW OAL TO 20WNW CZQ TO 20SW MOD TO 40ESE RBL TO 30NW FMG CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS CONTG BYD 03Z THRU 09Z. AIRMET MTN OBSCN: The cause of the obscuration will be limited to CLDS, PCPN, FU, HZ, BR and FG. OLD SLCS WA 222045 AIRMET SIERRA FOR IFR AND MTN OBSCN VALID UNTIL 230300 . AIRMET MTN OBSCN...ID WY UT FROM 80SSW BIL TO 20WSW JNC TO 50SW BCE TO 20NW DBS TO 80SSW BIL MTNS OCNL OBSC BY CLDS/-RA/-SN/BR. CONDS CONTG BYD 03Z ENDG 06Z. NEW SLCS WA 222045 AIRMET SIERRA FOR IFR AND MTN OBSCN VALID UNTIL 230300 . AIRMET MTN OBSCN...ID WY UT FROM 80SSW BIL TO 20WSW JNC TO 50SW BCE TO 20NW DBS TO 80SSW BIL MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 03Z ENDG 06Z. 3. AIRMET TANGO AIRMET TURB: The cause of the turbulence will no longer be included. OLD SFOT WA 222045 AIRMET TANGO FOR TURB VALID UNTIL 230300 . AIRMET TURB...WA OR CA ID NV UT CO AZ NM AND CSTL WTRS FROM 20SSW YDC TO 30ESE REO TO ILC TO FMN TO 50S TUS TO BZA TO MZB TO 40W RZS TO 140WSW FOT TO 110W ONP TO 160W TOU TO 20SSW YDC OCNL MOD TURB BTN FL220 AND FL380 DUE TO WND SHEAR ASSOC WITH JTSTR AND MTN WAVE ACT. CONDS CONTG BYD 03Z THRU 09Z. NEW SFOT WA 222045 AIRMET TANGO FOR TURB VALID UNTIL 230300 . AIRMET TURB...WA OR CA ID NV UT CO AZ NM AND CSTL WTRS FROM 20SSW YDC TO 30ESE REO TO ILC TO FMN TO 50S TUS TO BZA TO MZB TO 40W RZS TO 140WSW FOT TO 110W ONP TO 160W TOU TO 20SSW YDC MOD TURB BTN FL220 AND FL380. CONDS CONTG BYD 03Z THRU 09Z. AIRMET STG SFC WND: The cause and direction of the wind will no longer be included. OLD BOST WA 222045 AIRMET TANGO FOR TURB AND STG SFC WNDS VALID UNTIL 230300 . AIRMET STG SFC WND...NY NJ PA WV MD DE DC VA AND CSTL WTRS FROM ERI TO 80S ACK TO 170E ECG TO HMV TO ERI SUSTAINED N TO NW SFC WND GTR THAN 30KT EXP DUE TO DVLPG LOW OVR SERN VA. CONDS DVLPG 21-00Z. CONDS CONTG BYD 03Z THRU 09Z. NEW BOST WA 222045 AIRMET TANGO FOR TURB AND STG SFC WNDS VALID UNTIL 230300 . AIRMET STG SFC WND...NY NJ PA WV MD DE DC VA AND CSTL WTRS FROM ERI TO 80S ACK TO 170E ECG TO HMV TO ERI SUSTAINED SFC WND GTR THAN 30KT EXP. CONDS DVLPG 21-00Z. CONDS CONTG BYD 03Z THRU 09Z. LLWS POTENTIAL: Will include a list of the affected states. LLWS POTENTIAL: Will be delineated using high altitude VOR locations preceded by the BOUNDED BY descriptor. LLWS POTENTIAL: LLWS information will not include phrases such as BLW 2000 FT or BLW AGL020. LLWS POTENTIAL: The reason for the LLWS will no longer be included. OLD BOST WA 222045 AIRMET TANGO FOR TURB AND LLWS VALID UNTIL 230300 . NO SGFNT TURB EXP OUTSIDE CNVTV ACT. . LLWS POTENTIAL BLW AGL 020 EXP OVR MID ATLC STATES DUE TO STG LOW LVL WNDS. CONDS ENDG BY 03Z. NEW BOST WA 222045 AIRMET TANGO FOR TURB AND LLWS VALID UNTIL 230300 . NO SGFNT TURB EXP OUTSIDE CNVTV ACT. . LLWS POTENTIAL...NJ PA WV MD DC DE VA BOUNDED BY 20SE SLT-JFK-20NE ECG-30SSE PSK-20SE SLT LLWS EXP. CONDS ENDG BY 03Z. 4. AIRMET ZULU AIRMET ICE: The icing type (RIME, MXD and CLR) will no longer be included. AIRMET ICE: The location of ice with respect to clouds and precipitation (ICGICIP, ICGIP and ICGIP) will no longer be included. Instead, the term ICE will be used. OLD SLCZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 . AIRMET ICE...MT WY FROM 70NW GGW TO 50NNW ISN TO 60SW DIK TO CZI TO 40SSE BIL TO 70NW GGW OCNL MOD RIME/MXD ICGICIP BTN 050 AND FL180. CONDS CONTG BYD 03Z THRU 09Z. NEW SLCZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 . AIRMET ICE...MT WY FROM 70NW GGW TO 50NNW ISN TO 60SW DIK TO CZI TO 40SSE BIL TO 70NW GGW MOD ICE BTN 050 AND FL180. CONDS CONTG BYD 03Z THRU 09Z. The freezing level will be defined as the lowest freezing level above ground level or SFC as appropriate. Freezing levels will be delineated using high altitude VOR locations at intervals of 4000 feet above mean sea level or SFC as appropriate. The range of freezing levels over the area will be included. OLD SFOZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 . NO SGFNT ICE EXP OUTSIDE CNVTV ACT. . FRZLVL...WA..CASCDS EWD SFC-045. W CASCDS 020-035          OR..NWRN HLF 035-060. SERN HLF 055-085          NRN CA..065-090          CNTRL CA..090-110          SRN CA..105-115 NEW SFOZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 . NO SGFNT ICE EXP OUTSIDE CNVTV ACT. . FRZLVL...RANGING FROM SFC-120 ACRS AREA    SFC...20E BLI-30SE SEA-40NE EPH-80WSW YXC    040...110WNW ONP-30WSW PDX-20NW PDT-50SSE-GEG    080...140SW FOT-20SSW LKV-30ENE REO Multiple freezing level areas will be delineated using high altitude VOR locations preceded with the BOUNDED BY descriptor.. OLD DFWZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 FRZLVL...020-040 N OF 30W LBL-40N AUS-50E AUS-AEX-30SE MEI-30SW          GQO SLPG TO          080-120 S OF 20W INK-DLF-50SSW SAT-60S IAH-MSY-50WSW ABY NEW DFWZ WA 222045 AIRMET ZULU FOR ICE AND FRZLVL VALID UNTIL 230300 FRZLVL...RANGING FROM 020-120 ACRS AREA    MULT FRZLVL 030-080 BOUNDED BY 40NE ABI-40NE LCH-50S IAH-60SE       DLF-MAF-40NE ABI    040...30W LBL-40N AUS-50E AUS-AEX-30SE MEI-30SW GQO    080...20W INK-DLF-50SSW SAT-60S IAH-MSY-50WSW ABY    120...70WNW BRO-BRO Turbulence     Icing     Convection     Winds/Temps     Progs     Java Tools METARs     TAFs     PIREPs     SIGMET/AIRMET     Satellite     Radar 0 Page loaded:   21:02 UTC 01:02 PM Pacific  |   02:02 PM Mountain  |   03:02 PM Central  |   04:02 PM Eastern NOAA's National Weather Service National Centers for Environmental Prediction Aviation Weather Center 7220 NW 101st Terr., Room 118 Kansas City, MO 64153-2371 Contact AWC Internet Services Page last modified: July 24, 2006 Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities