Alert archive / Missouri / Red Flag Warnings in 2011
Red Flag Warning 4, NWS St. Louis, MO
NWS St. Louis, MO issued this red flag warning at Nov 18, 2011, 4:29 AM CST for 17 counties in Illinois; 30 counties in Missouri. It took effect at Nov 18, 2011, 10:00 AM CST. It was in force for 8 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
- Nov 18, 2011, 4:29 AM CST (10:29 UTC)
- In effect from
- Nov 18, 2011, 10:00 AM CST
- Expired
- Nov 18, 2011, 5:35 PM CST
- In force
- 8 hr
- Issued by
- NWS St. Louis, MO
All 47 counties
Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 17 km from the middle of the area, began a volume at 10:26 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
Lincoln, IL (KILX), launched 00:00Z, 10.5 hours before the alert went out and 244 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
- 2620 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
026 WWUS83 KLSX 181029 RFWLSX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 429 AM CST FRI NOV 18 2011 ILZ058-069-070-074-079-097>102-MOZ036-041-042-047>052-059>065- 072>075-190000- /O.NEW.KLSX.FW.W.0004.111118T1600Z-111119T0000Z/ AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-CLINTON IL-COLE MO- CRAWFORD MO-FRANKLIN MO-GASCONADE MO-GREENE IL-JEFFERSON MO- JERSEY IL-LINCOLN MO-MADISON IL-MARION IL-MONITEAU MO-MONROE IL- MONTGOMERY MO-OSAGE MO-PIKE IL-PIKE MO-RANDOLPH IL-ST. CHARLES MO- ST. CLAIR IL-ST. FRANCOIS MO-ST. LOUIS CITY MO-ST. LOUIS MO- STE. GENEVIEVE MO-WARREN MO-WASHINGTON IL-WASHINGTON MO- 429 AM CST FRI NOV 18 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PARTS OF CENTRAL AND EAST CENTRAL MISSOURI AND ADJACENT COUNTIES IN SOUTHWEST ILLINOIS... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST THIS EVENING. * AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 058...069... 070...074...079...097...098...099...100...101 AND 102. IN MISSOURI...FIRE WEATHER ZONES 036...041...042...047...048... 049... 050...051...052...059...060...061...062...063...064... 065...072... 073...074 AND 075. * 20FT WINDS...SOUTH 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 24 PERCENT. * 10HR FUELS...5 TO 8 PERCENT. * IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD AND GROWTH OF WILDFIRES. 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. && $$ BRITT
2 follow-up statements
835 WWUS83 KLSX 181818 RFWLSX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 1218 PM CST FRI NOV 18 2011 ILZ059-060-064-065-095-096-MOZ018-019-026-027-034-035-083>085-099- 190000- /O.EXA.KLSX.FW.W.0004.000000T0000Z-111119T0000Z/ ADAMS IL-BOND IL-BROWN IL-DENT MO-FAYETTE IL-IRON MO-KNOX MO- LEWIS MO-MACOUPIN IL-MADISON MO-MARION MO-MONROE MO-MONTGOMERY IL- RALLS MO-REYNOLDS MO-SHELBY MO- 1218 PM CST FRI NOV 18 2011 ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR ALL OF CENTRAL AND EASTERN MISSOURI AND WEST CENTRAL AND SOUTHWEST ILLINOIS... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. * AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 059...060... 064...065...095 AND 096. IN MISSOURI...FIRE WEATHER ZONES 018... 019...026...027...034...035...083...084...085 AND 099. * 20FT WINDS...SOUTH 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...WILL FALL BELOW 20 PERCENT IN SOME AREAS. * 10HR FUELS...5 TO 8 PERCENT * IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD AND GROWTH OF WILDFIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ILZ058-069-070-074-079-097>102-MOZ036-041-042-047>052-059>065- 072>075-190000- /O.CON.KLSX.FW.W.0004.000000T0000Z-111119T0000Z/ AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-CLINTON IL-COLE MO- CRAWFORD MO-FRANKLIN MO-GASCONADE MO-GREENE IL-JEFFERSON MO- JERSEY IL-LINCOLN MO-MADISON IL-MARION IL-MONITEAU MO-MONROE IL- MONTGOMERY MO-OSAGE MO-PIKE IL-PIKE MO-RANDOLPH IL-ST. CHARLES MO- ST. CLAIR IL-ST. FRANCOIS MO-ST. LOUIS CITY MO-ST. LOUIS MO- STE. GENEVIEVE MO-WARREN MO-WASHINGTON IL-WASHINGTON MO- 1218 PM CST FRI NOV 18 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WIND AND LOW RELATIVE HUMIDITY FOR ALL OF CENTRAL AND EASTERN MISSOURI AND WEST CENTRAL AND SOUTHWEST ILLINOIS... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING. * AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 058...069... 070...074...079...097...098...099...100...101 AND 102. IN MISSOURI...FIRE WEATHER ZONES 036...041...042...047...048... 049... 050...051...052...059...060...061...062...063...064... 065...072... 073...074 AND 075. * 20FT WINDS...SOUTH 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...WILL FALL BELOW 20 PERCENT IN SOME AREAS. * 10HR FUELS...5 TO 8 PERCENT. * IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD AND GROWTH OF WILDFIRES. 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. && $$ GLASS
332 WWUS83 KLSX 182335 RFWLSX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 535 PM CST FRI NOV 18 2011 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-083>085-099-190045- /O.CAN.KLSX.FW.W.0004.000000T0000Z-111119T0000Z/ ADAMS IL-AUDRAIN MO-BOND IL-BOONE MO-BROWN IL-CALHOUN IL- CALLAWAY MO-CLINTON IL-COLE MO-CRAWFORD MO-DENT MO-FAYETTE IL- FRANKLIN MO-GASCONADE MO-GREENE IL-IRON MO-JEFFERSON MO-JERSEY IL- KNOX MO-LEWIS MO-LINCOLN MO-MACOUPIN IL-MADISON IL-MADISON MO- MARION IL-MARION MO-MONITEAU MO-MONROE IL-MONROE MO-MONTGOMERY IL- MONTGOMERY MO-OSAGE MO-PIKE IL-PIKE MO-RALLS MO-RANDOLPH IL- REYNOLDS MO-SHELBY MO-ST. CHARLES MO-ST. CLAIR IL-ST. FRANCOIS MO- ST. LOUIS CITY MO-ST. LOUIS MO-STE. GENEVIEVE MO-WARREN MO- WASHINGTON IL-WASHINGTON MO- 535 PM CST FRI NOV 18 2011 ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF MISSOURI AND ILLINOIS... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED THE RED FLAG WARNING. WIND SPEEDS HAVE FALLEN BELOW RED FLAG CRITERIA...THEREFORE THE RED FLAG WARNING IS CANCELLED. $$ CVKING
Nearby
Red Flag Warnings in Missouri, 2011Red Flag Warnings in Illinois, 2011Every red flag warning in 2011
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.