Alert archive / Missouri / Red Flag Warnings in 2012
Red Flag Warning 8, NWS Kansas City, MO
NWS Kansas City, MO issued this red flag warning at Sep 21, 2012, 1:07 PM CDT for 14 counties in Missouri; 4 counties in Kansas. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 21, 2012, 1:07 PM CDT (18:07 UTC)
- Expired
- Sep 21, 2012, 6:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Kansas City, MO
Counties Atchison County, KS, Doniphan County, KS, Leavenworth County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO
The radar
The Pleasant Hill radar (KEAX), 119 km from the middle of the area, began a volume at 18:06 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 6.1 hours before the alert went out and 124 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1660 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 411 m²/s²
- 0-3 km storm-relative helicity
- 490 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
912 WWUS83 KEAX 211807 RFWEAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 107 PM CDT FRI SEP 21 2012 ...CRITICAL FIRE DANGER EXPECTED THIS AFTERNOON AND EARLY THIS EVENING ACROSS EXTREME NORTHEAST KANSAS AND FAR NORTHWEST MISSOURI... .A WEAK COLD FRONT SWEPT ACROSS KANSAS AND MISSOURI THIS MORNING. BEHIND THE FRONT A PARTICULARLY DRY AND WINDY AIR MASS HAS BEGUN TO SETTLE INTO EXTREME NORTHEAST KANSAS AND FAR NORTHWEST MISSOURI. WINDS THIS AFTERNOON WILL LIKELY RANGE AROUND 20 MPH WITH GUSTS TO 30 MPH AT TIMES. ADDITIONALLY...HUMIDITY VALUES COULD DIP AS LOW AS 20 PERCENT AS AFTERNOON MIXING OCCURS WITHIN THE DRY BOUNDARY LAYER. THIS COMBINATION OF CONDITIONS WILL PRODUCE GREATLY A ENHANCE THE POTENTIAL FOR ANY FIRE TO SPREAD OUT OF CONTROL DURING THE AFTERNOON AND EARLY EVENING HOURS TODAY. KSZ025-102>104-MOZ001>005-011>014-020>022-028-029-212300- /O.NEW.KEAX.FW.W.0008.120921T1807Z-120921T2300Z/ ATCHISON KS-DONIPHAN-LEAVENWORTH-WYANDOTTE-ATCHISON MO-NODAWAY- WORTH-GENTRY-HARRISON-HOLT-ANDREW-DE KALB-DAVIESS-BUCHANAN- CLINTON-CALDWELL-PLATTE-CLAY- 107 PM CDT FRI SEP 21 2012 ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 001...002... 003...004...005...011...012...013...014...020...021...022...025... 028...029...102...103 AND 104... THE NATIONAL WEATHER SERVICE IN KANSAS CITY/PLEASANT HILL HAS ISSUED A RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITY...WHICH IS IN EFFECT UNTIL 6 PM CDT THIS EVENING. * AFFECTED AREA...IN KANSAS...FIRE WEATHER ZONE 025 ATCHISON KS... FIRE WEATHER ZONE 102 DONIPHAN...FIRE WEATHER ZONE 103 LEAVENWORTH AND FIRE WEATHER ZONE 104 WYANDOTTE. IN MISSOURI... FIRE WEATHER ZONE 001 ATCHISON MO...FIRE WEATHER ZONE 002 NODAWAY...FIRE WEATHER ZONE 003 WORTH...FIRE WEATHER ZONE 004 GENTRY...FIRE WEATHER ZONE 005 HARRISON...FIRE WEATHER ZONE 011 HOLT...FIRE WEATHER ZONE 012 ANDREW...FIRE WEATHER ZONE 013 DE KALB...FIRE WEATHER ZONE 014 DAVIESS...FIRE WEATHER ZONE 020 BUCHANAN...FIRE WEATHER ZONE 021 CLINTON...FIRE WEATHER ZONE 022 CALDWELL...FIRE WEATHER ZONE 028 PLATTE AND FIRE WEATHER ZONE 029 CLAY. * WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. * TIMING...PEAK FIRE DANGER WILL BE FROM 1 PM TO 6 PM TODAY. * RELATIVE HUMIDITY...AS LOW AS 23 PERCENT. * TEMPERATURES...IN THE MID TO UPPER 70S. * IMPACTS...ANY FIRES...PARTICULARLY OVER GRASSY AREAS...WILL HAVE A HIGH PROBABILITY OF SPREADING RAPIDLY FROM SOUTH TO NORTH. OUTDOOR BURNING SHOULD BE AVOIDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ CUTTER
2 follow-up statements
308 WWUS83 KEAX 212052 RFWEAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 352 PM CDT FRI SEP 21 2012 ...CRITICAL FIRE DANGER EXPECTED THROUGH EARLY THIS EVENING ACROSS EXTREME NORTHEAST KANSAS AND FAR NORTHWEST MISSOURI... .CRITICAL FIRE WEATHER CONDITIONS WILL PERSIST THROUGH THE EARLY EVENING HOURS IN EXTREME NORTHEAST KANSAS AND FAR NORTHWEST MISSOURI. AS THE SUN BEGINS TO SET THIS EVENING THE CRITICAL WIND SPEEDS WILL BEGIN TO QUICKLY DROP OFF AS BOUNDARY LAYER MIXING COMES TO AN END...BUT THAT WILL LIKELY NOT OCCUR TILL NEAR 6 PM THIS EVENING. KSZ025-102>104-MOZ001>005-011>014-020>022-028-029-212300- /O.CON.KEAX.FW.W.0008.000000T0000Z-120921T2300Z/ ATCHISON KS-DONIPHAN-LEAVENWORTH-WYANDOTTE-ATCHISON MO-NODAWAY- WORTH-GENTRY-HARRISON-HOLT-ANDREW-DE KALB-DAVIESS-BUCHANAN- CLINTON-CALDWELL-PLATTE-CLAY- 352 PM CDT FRI SEP 21 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 001...002... 003...004...005...011...012...013...014...020...021...022...025... 028...029...102...103 AND 104... * AFFECTED AREA...IN KANSAS...FIRE WEATHER ZONE 025 ATCHISON KS... FIRE WEATHER ZONE 102 DONIPHAN...FIRE WEATHER ZONE 103 LEAVENWORTH AND FIRE WEATHER ZONE 104 WYANDOTTE. IN MISSOURI... FIRE WEATHER ZONE 001 ATCHISON MO...FIRE WEATHER ZONE 002 NODAWAY...FIRE WEATHER ZONE 003 WORTH...FIRE WEATHER ZONE 004 GENTRY...FIRE WEATHER ZONE 005 HARRISON...FIRE WEATHER ZONE 011 HOLT...FIRE WEATHER ZONE 012 ANDREW...FIRE WEATHER ZONE 013 DE KALB...FIRE WEATHER ZONE 014 DAVIESS...FIRE WEATHER ZONE 020 BUCHANAN...FIRE WEATHER ZONE 021 CLINTON...FIRE WEATHER ZONE 022 CALDWELL...FIRE WEATHER ZONE 028 PLATTE AND FIRE WEATHER ZONE 029 CLAY. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TIMING...PEAK FIRE DANGER WILL BE FROM THROUGH 6 PM TODAY. * RELATIVE HUMIDITY...AS LOW AS 23 PERCENT. * TEMPERATURES...IN THE UPPER 70S. * IMPACTS...ANY FIRES...PARTICULARLY OVER GRASSY AREAS...WILL HAVE A HIGH PROBABILITY OF SPREADING RAPIDLY FROM SOUTH TO NORTH. OUTDOOR BURNING SHOULD BE AVOIDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ CUTTER
187 WWUS83 KEAX 212256 RFWEAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 556 PM CDT FRI SEP 21 2012 KSZ025-102>104-MOZ001>005-011>014-020>022-028-029-220000- /O.EXP.KEAX.FW.W.0008.000000T0000Z-120921T2300Z/ ATCHISON KS-DONIPHAN-LEAVENWORTH-WYANDOTTE-ATCHISON MO-NODAWAY- WORTH-GENTRY-HARRISON-HOLT-ANDREW-DE KALB-DAVIESS-BUCHANAN- CLINTON-CALDWELL-PLATTE-CLAY- 556 PM CDT FRI SEP 21 2012 ...RED FLAG WARNING WILL EXPIRE AT 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 001...002...003... 004...005...011...012...013...014...020...021...022...025...028... 029...102...103 AND 104... SLOWLY DECREASING WINDS AND INCREASING HUMIDITY VALUES WILL BRING AN END TO CRITICAL FIRE CONDITIONS THIS EVENING. THEREFORE THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. NORTHWEST WINDS WILL CONTINUE TO GUST EARLY THIS EVENING...SO THE FIRE DANGER WILL STILL REMAIN HIGH FOR A FEW MORE HOURS. $$ DEROCHE
Nearby
Red Flag Warnings in Missouri, 2012Red Flag Warnings in Kansas, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.