Alert archive / Missouri / Red Flag Warnings in 2011
Red Flag Warning 9, NWS Kansas City, MO
NWS Kansas City, MO issued this red flag warning at Nov 18, 2011, 12:39 PM CST for 9 counties in Missouri. 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
- Nov 18, 2011, 12:39 PM CST (18:39 UTC)
- Expired
- Nov 18, 2011, 5:49 PM CST
- In force
- 5 hr
- Issued by
- NWS Kansas City, MO
Counties Chariton County, MO, Cooper County, MO, Henry County, MO, Howard County, MO, Johnson County, MO, Macon County, MO, Pettis County, MO, Randolph County, MO, Saline County, MO
The radar
The Pleasant Hill radar (KEAX), 108 km from the middle of the area, began a volume at 18:43 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, 6.7 hours before the alert went out and 222 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
- 1880 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 727 m²/s²
- 0-3 km storm-relative helicity
- 802 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
518 WWUS83 KEAX 181839 RFWEAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1239 PM CST FRI NOV 18 2011 ...EXTREME FIRE DANGER OVER PORTIONS OF CENTRAL MISSOURI... .VERY STRONG WINDS WITH OCCASIONAL GUSTS TO 40 MPH COMBINED WITH DRY AND DORMANT NATIVE GRASSES LOW RELATIVE HUMIDITY VALUES BETWEEN 20 AND 25 PERCENT WILL RESULT IN EXTREME FIRE DANGER THROUGH PORTIONS OF CENTRAL MISSOURI. FIRE CONDITIONS WILL IMPROVE LATE THIS AFTERNOON AND THIS EVENING AS TEMPERATURES COOL...WINDS SUBSIDE AND MOISTURE RETURNS TO THE AREA. MOZ025-032-033-039-040-044>046-054-190000- /O.NEW.KEAX.FW.W.0009.111118T1839Z-111119T0000Z/ MACON-CHARITON-RANDOLPH-SALINE-HOWARD-JOHNSON MO-PETTIS-COOPER- HENRY- 1239 PM CST FRI NOV 18 2011 ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 025...032... 033...039...040...044...045...046 AND 054... THE NATIONAL WEATHER SERVICE IN KANSAS CITY/PLEASANT HILL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. * AFFECTED AREA...IN MISSOURI...FIRE WEATHER ZONES 025...032... 033...039...040...044...045...046 AND 054. * TIMING...RED FLAG CONDITIONS ARE EXPECTED THROUGH LATE THIS AFTERNOON. * WIND...SOUTHERLY WINDS OF 25 TO 30 MPH WITH GUSTS TO AROUND 40 MPH. * RELATIVE HUMIDITY...WILL RANGE FROM 20 TO 25 PERCENT THROUGH LATE THIS AFTERNOON. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. 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. && $$ CDB
1 follow-up statement
129 WWUS83 KEAX 182349 RFWEAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 549 PM CST FRI NOV 18 2011 MOZ025-032-033-039-040-044>046-054-190100- /O.CAN.KEAX.FW.W.0009.000000T0000Z-111119T0000Z/ MACON-CHARITON-RANDOLPH-SALINE-HOWARD-JOHNSON MO-PETTIS-COOPER- HENRY- 549 PM CST FRI NOV 18 2011 ...RED FLAG WARNING IS CANCELLED FOR FIRE WEATHER ZONES 025...032...033...039...040...044...045...046 AND 054... THE NATIONAL WEATHER SERVICE IN KANSAS CITY/PLEASANT HILL HAS CANCELLED THE RED FLAG WARNING. WINDS HAVE DIMINISHED TO 15 TO 25 MPH WITH TEMPERATURES IN THE 50S. AS A RESULT OF THE COOLER TEMPERATURES AND A SLOW INCREASE IN MOISTURE... RELATIVE HUMIDITIES HAVE RISEN TO BETWEEN 40 AND 50 PERCENT. $$
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 3:45 AM CST | Wind Advisory | EAX | Bates, Cass, Clay, Henry, Jackson, Johnson and 2 more | 13 hr |
Nearby
Red Flag Warnings in Missouri, 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.