Alert archive / Nebraska / Red Flag Warnings in 2012
Red Flag Warning 20, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at May 22, 2012, 2:31 AM MDT for 11 counties in Nebraska. It took effect at May 22, 2012, 12:00 PM MDT. 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
- May 22, 2012, 2:31 AM MDT (08:31 UTC)
- In effect from
- May 22, 2012, 12:00 PM MDT
- Expired
- May 22, 2012, 8:00 PM MDT
- In force
- 8 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 08:30 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, 8.5 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
- 37 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 2501 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
581 WWUS83 KLBF 220831 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 331 AM CDT TUE MAY 22 2012 ...CRITICAL FIRE DANGER LIKELY IN THE EASTERN NEBRASKA PANHANDLE THIS AFTERNOON AND EARLY THIS EVENING... .A VERY WARM AIR MASS WILL PUSH NORTH INTO THE NEBRASKA PANHANDLE LATER TODAY WITH AFTERNOON HIGHS IN THE MID 90S. AT THE SAME TIME...A DRY LINE WILL DEVELOP ACROSS THE EASTERN PANHANDLE LATER THIS AFTERNOON. HOT TEMPERATURES AND DRY AIR WEST OF THE DRY LINE WILL RESULT IN MINIMUM RELATIVE HUMIDITIES OF 10 TO 15 PERCENT. SOUTHWESTERLY WINDS WILL GUST OVER 25 MPH LATER THIS AFTERNOON IN THE EASTERN PANHANDLE AS WELL. ISOLATED THUNDERSTORMS MAY DEVELOP LATER THIS AFTERNOON ALONG THE DRY LINE...AND WITH LOW LEVEL MOISTURE LACKING...THUNDERSTORMS WHICH MAY DEVELOP WILL BE ELEVATED AND CAPABLE OF PRODUCING GUSTY ERRATIC WINDS AND DRY LIGHTNING. NEZ204-222030- /O.NEW.KLBF.FW.W.0020.120522T1800Z-120523T0200Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- 231 AM MDT TUE MAY 22 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR LOW MINIMUM RELATIVE HUMIDITIES...GUSTY WINDS AND DRY LIGHTNING FOR THE EASTERN NEBRASKA PANHANDLE... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING FOR LOW RELATIVE HUMIDITIES...GUSTY WINDS AND THE THREAT OF DRY LIGHTNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR. * WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 35 MPH. * TIMING...FROM NOON MDT THROUGH 8 PM MDT...WITH THE GREATEST THREAT FROM 3 PM MDT THROUGH 8 PM MDT. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * TEMPERATURES...IN THE MID 90S. * LIGHTNING...ISOLATED...ELEVATED THUNDERSTORMS MAY DEVELOP BY MID AFTERNOON ALONG THE DRY LINE AND WILL BE CAPABLE OF PRODUCING DRY LIGHTNING. * IMPACTS...ANY FIRES WHICH MAY DEVELOP LATER TODAY...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
2 follow-up statements
513 WWUS83 KLBF 221915 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 215 PM CDT TUE MAY 22 2012 ...CRITICAL FIRE DANGER THIS AFTERNOON AND EARLY THIS EVENING... .VERY WARM TEMPERATURES AND DRY AIR HAVE MOVED INTO THE NEBRASKA PANHANDLE AND FAR SOUTHWEST NEBRASKA THIS AFTERNOON. AS THESE CONDITIONS WILL CONTINUE THIS AFTERNOON AND INTO THE EARLY EVENING...RELATIVE HUMIDITY WILL DROP TO 15 PERCENT OR LOWER FOR MUCH OF THE AREA. BREEZY SOUTHERLY WINDS...WITH GUSTS UP TO 30 MPH AT TIMES WILL FURTHER INCREASE THE THREAT FOR RAPID FIRE SPREAD THROUGH THE AFTERNOON. LOCATIONS THAT WILL SEE THE MOST EXTREME CONDITIONS WILL BE WEST OF A LINE FROM MERRIMAN TO OGALLALA TO CHAMPION. IN ADDITION...ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THESE AREAS THIS AFTERNOON...WHICH COULD LEAD TO LIGHTNING STRIKES AND FURTHER GUSTY AND ERRATIC WINDS. NEZ210-230200- /O.EXA.KLBF.FW.W.0020.000000T0000Z-120523T0200Z/ FRENCHMAN BASIN- 215 PM CDT TUE MAY 22 2012 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR LOCATIONS ACROSS PERKINS AND CHASE COUNTIES ... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 210 FRENCHMAN BASIN...MAINLY ALONG AND WEST OF A LINE FROM GRANT TO CHAMPION. * WINDS...SOUTH 25 TO 30 MPH WITH GUSTS UP TO 35 MPH. * TIMING...THROUGH 8 PM MDT...WITH THE GREATEST THREAT FROM 1 PM MDT THROUGH 5 PM MDT. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * TEMPERATURES...IN THE UPPER 80S. * LIGHTNING...ISOLATED...ELEVATED THUNDERSTORMS MAY DEVELOP BY MID AFTERNOON ALONG THE DRY LINE AND WILL BE CAPABLE OF PRODUCING DRY LIGHTNING. * IMPACTS...ANY FIRES WHICH MAY DEVELOP LATER TODAY...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. && $$ NEZ204-230200- /O.CON.KLBF.FW.W.0020.000000T0000Z-120523T0200Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- 115 PM MDT TUE MAY 22 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW MINIMUM RELATIVE HUMIDITIES...GUSTY WINDS AND DRY LIGHTNING FOR THE EASTERN NEBRASKA PANHANDLE... * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR. * WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH. * TIMING...FROM NOON MDT THROUGH 8 PM MDT...WITH THE GREATEST THREAT FROM 3 PM MDT THROUGH 8 PM MDT. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * TEMPERATURES...IN THE UPPER 80S. * LIGHTNING...ISOLATED...ELEVATED THUNDERSTORMS MAY DEVELOP BY MID AFTERNOON ALONG THE DRY LINE AND WILL BE CAPABLE OF PRODUCING DRY LIGHTNING. * IMPACTS...ANY FIRES WHICH MAY DEVELOP LATER TODAY...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. && $$ HTTP://WEATHER.GOV/LBF BROOKS
037 WWUS83 KLBF 230205 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 905 PM CDT TUE MAY 22 2012 NEZ204-210-230315- /O.EXP.KLBF.FW.W.0020.000000T0000Z-120523T0200Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR-FRENCHMAN BASIN- 905 PM CDT TUE MAY 22 2012 /805 PM MDT TUE MAY 22 2012/ ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR LOCATIONS ACROSS PERKINS AND CHASE COUNTIES ... RELATIVE HUMIDITY CONDITIONS HAVE IMPROVED THIS EVENING. THERFORE THE RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE. $$ ROBERG
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 6:12 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Perkins | 48 min |
| May 21, 6:42 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 48 min |
| May 21, 6:59 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln, Perkins | 35 min |
| May 22, 6:14 AM MDT | Severe Thunderstorm Warning | LBF | Holt, Wheeler | 61 min |
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.