Alert archive / Missouri / Red Flag Warnings in 2014
Red Flag Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this red flag warning at Mar 21, 2014, 4:37 AM CDT for 5 counties in Illinois; 18 counties in Missouri. It took effect at Mar 21, 2014, 1:00 PM CDT. 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
- Mar 21, 2014, 4:37 AM CDT (09:37 UTC)
- In effect from
- Mar 21, 2014, 1:00 PM CDT
- Expired
- Mar 21, 2014, 6:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
All 23 counties
Calhoun County, IL, Jersey County, IL, Madison County, IL, Monroe County, IL, Saint Clair County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Lincoln County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 36 km from the middle of the area, began a volume at 09:41 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, 9.6 hours before the alert went out and 269 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
- 1758 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 453 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
556 WWUS83 KLSX 210937 RFWLSX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 437 AM CDT FRI MAR 21 2014 ILZ098>102-MOZ036-041-042-047>052-059>065-072-073-212300- /O.NEW.KLSX.FW.W.0003.140321T1800Z-140321T2300Z/ AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-COLE MO-CRAWFORD MO- FRANKLIN MO-GASCONADE MO-JEFFERSON MO-JERSEY IL-LINCOLN MO- MADISON IL-MONITEAU MO-MONROE IL-MONTGOMERY MO-OSAGE MO-PIKE MO- ST. CHARLES MO-ST. CLAIR IL-ST. LOUIS CITY MO-ST. LOUIS MO- WARREN MO-WASHINGTON MO- 437 AM CDT FRI MAR 21 2014 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PARTS OF CENTRAL...SOUTHEAST...AND EAST-CENTRAL MISSOURI AS WELL AS 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 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING. * AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 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 AND 073. * 20FT WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 25 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * 10HR FUELS...5 TO 7 PERCENT. * IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD AND GROWTH OF UNCONTROLLED 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 DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ TES
1 follow-up statement
809 WWUS83 KLSX 212313 RFWLSX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 613 PM CDT FRI MAR 21 2014 ILZ098>102-MOZ036-041-042-047>052-059>065-072-073-220015- /O.EXP.KLSX.FW.W.0003.000000T0000Z-140321T2300Z/ AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-COLE MO-CRAWFORD MO- FRANKLIN MO-GASCONADE MO-JEFFERSON MO-JERSEY IL-LINCOLN MO- MADISON IL-MONITEAU MO-MONROE IL-MONTGOMERY MO-OSAGE MO-PIKE MO- ST. CHARLES MO-ST. CLAIR IL-ST. LOUIS CITY MO-ST. LOUIS MO- WARREN MO-WASHINGTON MO- 613 PM CDT FRI MAR 21 2014 ...RED FLAG WARNING HAS EXPIRED... SURFACE WINDS HAVE BEGUN TO DIMINISH AND WILL CONTINUE TO DO SO THIS EVENING WITH RELATIVE HUMIDITY VALUES GRADUALLY INCREASING THROUGH THE EVENING. $$ GLASS
Nearby
Red Flag Warnings in Missouri, 2014Red Flag Warnings in Illinois, 2014Every red flag warning in 2014
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.