Alert archive / Nebraska / Red Flag Warnings in 2007
Red Flag Warning 4, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Aug 21, 2007, 3:40 AM MDT for 11 counties in Nebraska. It took effect at Aug 21, 2007, 9:00 AM MDT. It was in force for 11 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
- Aug 21, 2007, 3:40 AM MDT (09:40 UTC)
- In effect from
- Aug 21, 2007, 9:00 AM MDT
- Expired
- Aug 21, 2007, 8:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS North Platte, NE
Counties Arthur County, NE, Chase County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE, Sheridan County, NE
The radar
The North Platte radar (KLNX), 110 km from the middle of the area, began a volume at 09:38 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 00:00Z, 9.7 hours before the alert went out and 95 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
- 4402 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -65 m²/s²
- 0-3 km storm-relative helicity
- -49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS83 KLBF 210940 RFWLBF RED FLAG WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 440 AM CDT TUE AUG 21 2007 ...THREAT FOR EXTREME FIRE DANGER CONTINUES ON TUESDAY... .A RED FLAG WATCH CONTINUES FOR TUESDAY DUE TO A COMBINATION OF HOT TEMPERATURES...BREEZY WINDS AND LOW AFTERNOON RELATIVE HUMIDITIES. BY LATE AFTERNOON TUESDAY...HIGH TEMPERATURES WILL REACH THE MID 90S WEST OF HIGHWAY 61...ALLOWING MINIMUM RELATIVE HUMIDITIES TO DROP UNDER 20 PERCENT. NEZ204-210-211745- /O.UPG.KLBF.FW.A.0003.070821T1500Z-070822T0200Z/ /O.NEW.KLBF.FW.W.0004.070821T1500Z-070822T0200Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR-FRENCHMAN BASIN- 440 AM CDT TUE AUG 21 2007 /340 AM MDT TUE AUG 21 2007/ ...RED FLAG WARNING IN EFFECT FROM 10 AM CDT /9 AM MDT/ THIS MORNING TO 9 PM CDT /8 PM MDT/ THIS EVENING... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM CDT /9 AM MDT/ THIS MORNING TO 9 PM CDT /8 PM MDT/ THIS EVENING. WEST TO NORTHWEST WINDS GUSTING TO 25 MPH AND LOW RELATIVE HUMIDITY WILL PRODUCE DANGEROUS WILD FIRE CONDITIONS IN THE EASTERN PANHANDLE LATE THIS MORNING AND DURING THE AFTERNOON. SOUTHWARD ACROSS THE FRENCHMAN BASIN...DRY LIGHTNING AND DOWN BURST WINDS ARE POSSIBLE THIS AFTERNOON. 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. $$
1 follow-up statement
000 WWUS83 KLBF 211412 AAA RFWLBF RED FLAG WARNING...UPDATED NATIONAL WEATHER SERVICE NORTH PLATTE NE 912 AM CDT TUE AUG 21 2007 ...THREAT FOR EXTREME FIRE DANGER TODAY INTO THIS EVENING... .A RED FLAG WARNING IS IN EFFECT DUE TO A COMBINATION OF HOT TEMPERATURES...BREEZY WINDS AND LOW AFTERNOON RELATIVE HUMIDITIES. BY LATE AFTERNOON...HIGH TEMPERATURES WILL REACH THE MID 90S WEST OF HIGHWAY 61...ALLOWING MINIMUM RELATIVE HUMIDITIES TO DROP UNDER 20 PERCENT. IN ADDITION...THE THREAT FOR DRY LIGHTNING WILL EXIST ACROSS ZONE 210. NEZ204-210-212215- /O.CON.KLBF.FW.W.0004.070821T1500Z-070822T0200Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR-FRENCHMAN BASIN- 912 AM CDT TUE AUG 21 2007 /812 AM MDT TUE AUG 21 2007/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR LOW RELATIVE HUMIDITY AND DRY LIGHTNING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING. WEST TO NORTHWEST WINDS GUSTING TO 25 MPH AND LOW RELATIVE HUMIDITY WILL PRODUCE DANGEROUS WILDFIRE CONDITIONS IN THE EASTERN PANHANDLE THIS AFTERNOON INTO THIS EVENING. SOUTHWARD ACROSS THE FRENCHMAN BASIN...DRY LIGHTNING AND DOWN BURST WINDS ARE POSSIBLE. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ KAR
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 3:48 AM MDT | Dense Fog Advisory | LBF | Keith, Lincoln | 4 hr |
| Aug 21, 4:21 PM MDT | Severe Thunderstorm Warning | LBF | Holt | 24 min |
| Aug 21, 4:44 PM MDT | Severe Thunderstorm Warning | LBF | Holt | 46 min |
| Aug 21, 4:47 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 43 min |
| Aug 21, 5:03 PM MDT | Tornado Warning | LBF | Holt | 27 min |
| Aug 21, 5:28 PM MDT | Tornado Warning | LBF | Holt, Wheeler | 32 min |
| Aug 21, 5:29 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 46 min |
| Aug 21, 5:43 PM MDT | Severe Thunderstorm Warning | LBF | Garfield | 47 min |
| Aug 21, 5:58 PM MDT | Severe Thunderstorm Warning | LBF | Holt, Wheeler | 62 min |
Nearby
Red Flag Warnings in Nebraska, 2007Every red flag warning in 2007
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.