Alert archive / Nebraska / Red Flag Warnings in 2012
Red Flag Warning 22, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Jun 17, 2012, 12:29 PM MDT for 7 counties in Nebraska. It was in force for 10 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
- Jun 17, 2012, 12:29 PM MDT (18:29 UTC)
- Expired
- Jun 17, 2012, 10:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS North Platte, NE
Counties Arthur County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Keith County, NE, Sheridan County, NE
The radar
The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 18:28 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.5 hours before the alert went out and 130 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
- 1423 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1217 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
441 WWUS83 KLBF 171829 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 129 PM CDT SUN JUN 17 2012 ...CRITICAL FIRE WEATHER CONDITIONS ACROSS WESTERN NEBRASKA TODAY... .DRY AIR OVER WESTERN NEBRASKA WILL COMBINE WITH ABNORMALLY WARM TEMPERATURES AND STRONG WESTERLY WINDS TO CREATE CONDITIONS FAVORABLE FOR EXTREME FIRE GROWTH. NEZ204-180230- /O.NEW.KLBF.FW.W.0022.120617T1829Z-120618T0400Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- 1229 PM MDT SUN JUN 17 2012 ...RED FLAG WARNING IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE ZONE 204... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 10 PM MDT THIS EVENING. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...ANY FIRE START WOULD HAVE A VERY HIGH POTENTIAL FOR EXPLOSIVE GROWTH. 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. && $$ HTTP://WEATHER.GOV/LBF
1 follow-up statement
493 WWUS83 KLBF 180359 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 1059 PM CDT SUN JUN 17 2012 NEZ204-180500- /O.EXP.KLBF.FW.W.0022.000000T0000Z-120618T0400Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- 959 PM MDT SUN JUN 17 2012 ...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE ZONE 204... RELATIVE HUIMIDITY VALUES HAVE IMPROVED LATE THIS EVENING TO AROUND 30 PERCENT WITH LIGHT WESTERLY WINDS ACROSS ZONE 204. THE POTENTIAL FOR EXTREME FIRE GROWTH HAS ENDED. $$ HTTP://WEATHER.GOV/LBF
Nearby
Red Flag Warnings in Nebraska, 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.