Alert archive / Nebraska / Red Flag Warnings in 2012
Red Flag Warning 28, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Jul 22, 2012, 6:59 PM MDT for 26 counties in Nebraska. It took effect at Jul 23, 2012, 11:00 AM MDT. 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
- Jul 22, 2012, 6:59 PM MDT (00:59 UTC)
- In effect from
- Jul 23, 2012, 11:00 AM MDT
- Expired
- Jul 23, 2012, 9:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS North Platte, NE
All 26 counties
Arthur County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Frontier County, NE, Garden County, NE, Garfield County, NE, Grant County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE, Wheeler County, NE
The radar
The North Platte radar (KLNX), 25 km from the middle of the area, began a volume at 00:58 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, 1.0 hours before the alert went out and 67 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
- 538 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 3464 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
679 WWUS83 KLBF 230059 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 759 PM CDT SUN JUL 22 2012 ...CRITICAL FIRE DANGER EXPECTED THROUGH THIS EVENING AND THEN AGAIN ON MONDAY... .THROUGH LATE EVENING...VERY WARM DRY AIR WILL CONTINUE ACROSS WESTERN AND NORTH CENTRAL NEBRASKA. A STATIONARY FRONT ACROSS NORTHERN NEBRASKA WILL PROVIDE FOCUS FOR THUNDERSTORMS. SOME WHICH WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND WILDFIRES. THE FRONT IS EXPECTED TO MENANDER NORTH AND SOUTH...ALONG THE SNAKE RIVER AND NIOBRARA RIVER VALLEYS. SOUTH OF THE FRONT RELATIVE HUMIDITY WILL FALL BELOW 15 PERCENT. WIND GUSTS TO 30 MPH ARE EXPECTED PRODUCING CRITICAL FIRE DANGER. THE BOUNDARY IS EXPECTED TO MOVE NORTH ON MONDAY AND STALL ALONG OR JUST NORTH OF THE SOUTH DAKOTA BORDER. AS SUCH...SOUTHERLY LOW LEVEL FLOW WILL ONCE AGAIN BECOME ESTABLISHED ACROSS THE REGION WITH PEAK WIND GUST POTENTIAL OF 25 MPH OR GREATER MONDAY AFTERNOON. MINIMUM RELATIVE HUMIDITY VALUES WILL ONCE AGAIN PLUMMET SOUTH OF THE FRONT /BELOW 15 PERCENT OVER MUCH OF THE SAND HILLS REGION OF NEBRASKA/ AS TEMPERATURES WARM TO ABNORMAL VALUES /100-108F/. NOTE THAT THE CURRENT FORECAST SUGGESTS A HAINES INDEX OF 6 ACROSS ALL OF WESTERN AND NORTH CENTRAL NEBRASKA THROUGH THE FORECAST PERIOD...WITH A LAL OF 6 AS WELL ALONG AND NORTH OF THE FRONT WHERE AFTERNOON CONVECTION MAY FORM. DRY LIGHTNING AND GUSTY ERRATIC WIND ARE MAJOR CONCERNS WHERE ANY STORM FORMS. NEZ204-206-208>210-219-230900- /O.NEW.KLBF.FW.W.0028.120723T1700Z-120724T0300Z/ /O.CON.KLBF.FW.W.0027.000000T0000Z-120723T0300Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST- NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN- FRENCHMAN BASIN-LOESS PLAINS- 759 PM CDT SUN JUL 22 2012 /659 PM MDT SUN JUL 22 2012/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND...LOW RELATIVE HUMIDITY AND DRY LIGHTNING FOR ALL OF WESTERN AND NORTH CENTRAL NEBRASKA... ...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TO 10 PM CDT /9 PM MDT/ MONDAY FOR WIND...LOW RELATIVE HUMIDITY AND THE POSSIBILITY OF DRY LIGHTNING FOR ALL OF WESTERN AND NORTH CENTRAL NEBRASKA... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON CDT /11 AM MDT/ TO 10 PM CDT /9 PM MDT/ MONDAY. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS BASIN...FIRE WEATHER ZONE 210 FRENCHMAN BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS. * WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 25 MPH. * RELATIVE HUMIDITY...AS LOW AS 14 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS... AND LOW RELATIVE HUMIDITY VALUES WILL PROMOTE EXPLOSIVE FIRE GROWTH THIS EVENING AND MONDAY. UNDER THESE CONDITIONS...RANGE FIRES COULD ESCAPE CONTROL VERY QUICKLY. THUNDERSTORMS ARE POSSIBLE ALONG AND NORTH OF STATIONARY FRONT ACROSS NORTHERN NEBRASKA. SOME STORMS WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND GUSTY ERRATIC WINDS WHICH FUEL 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 WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ JACOBS HTTP://WEATHER.GOV/LBF
2 follow-up statements
521 WWUS83 KLBF 231811 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 111 PM CDT MON JUL 23 2012 ...CRITICAL FIRE DANGER EXPECTED THROUGH THIS EVENING... .THIS AFTERNOON AND EVENING...VERY WARM DRY AIR WILL CONTINUE ACROSS WESTERN AND NORTH CENTRAL NEBRASKA. A STATIONARY FRONT LOCATED NEAR THE NORTHERN NEBRASKA BORDER WILL PROVIDE A FOCUS FOR ISOLATED THUNDERSTORM DEVELOPMENT BY MID AFTERNOON. SOME STORMS WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND WILDFIRES. THE FRONT IS EXPECTED TO MOVE SLIGHTLY NORTH AND SOUTH THROUGH THE DAY...ALONG THE SNAKE RIVER AND NIOBRARA RIVER VALLEYS. SOUTH OF THE FRONT RELATIVE HUMIDITY WILL FALL BELOW 15 PERCENT. WIND GUSTS TO 25 MPH ARE POSSIBLE PRODUCING CRITICAL FIRE DANGER. ANOTHER WEAK COLD FRONT WILL PUSH INTO THE NORTHWEST CORNER OF NEBRASKA NEAR MIDDAY TUESDAY. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP TUESDAY ALONG AND NEAR THE FRONT...SOME OF WHICH MAY BE DRY THUNDERSTORMS INITIALLY. CRITICAL RELATIVE HUMIDITY VALUES AND HIGH TEMPERATURES EXCEEDING 100 DEGREES ARE ONCE AGAIN POSSIBLE ON TUESDAY. NEZ204-206-208>210-219-240300- /O.CON.KLBF.FW.W.0028.000000T0000Z-120724T0300Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST- NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN- FRENCHMAN BASIN-LOESS PLAINS- 111 PM CDT MON JUL 23 2012 /1211 PM MDT MON JUL 23 2012/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND...LOW RELATIVE HUMIDITY AND DRY LIGHTNING FOR ALL OF WESTERN AND NORTH CENTRAL NEBRASKA... * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS BASIN...FIRE WEATHER ZONE 210 FRENCHMAN BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 25 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS... AND LOW RELATIVE HUMIDITY VALUES WILL PROMOTE EXPLOSIVE FIRE GROWTH THIS EVENING AND MONDAY. UNDER THESE CONDITIONS...RANGE FIRES COULD ESCAPE CONTROL VERY QUICKLY. THUNDERSTORMS ARE POSSIBLE ALONG AND NORTH OF STATIONARY FRONT ACROSS NORTHERN NEBRASKA. SOME STORMS WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND GUSTY ERRATIC WINDS WHICH FUEL 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 WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/LBF
676 WWUS83 KLBF 240107 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 807 PM CDT MON JUL 23 2012 ...CRITICAL FIRE DANGER EXPECTED THROUGH THIS EVENING AND AGAIN ON TUESDAY... .THIS EVENING...VERY WARM DRY AIR WILL CONTINUE ACROSS WESTERN AND NORTH CENTRAL NEBRASKA. A STATIONARY FRONT LOCATED NEAR THE NORTHERN NEBRASKA BORDER MAY PROVIDE A FOCUS FOR ISOLATED THUNDERSTORM DEVELOPMENT THIS EVENING...ESPECIALLY LOCATIONS ACROSS NORTHWESTERN NEBRASKA. THESE STORMS WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND GUSTY ERRATIC WIND. OTHERWISE...SOUTHERLY FLOW WILL CONTINUE SOUTH OF THE AFOREMENTIONED BOUNDARY WITH GUTS POTENTIAL OF 25 MPH THROUGH LATE EVENING. TUESDAY...THE WEAK COLD FRONT WILL SETTLE INTO THE NORTHWEST CORNER OF NEBRASKA NEAR MIDDAY. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND NEAR THE FRONT...SOME OF WHICH MAY BE DRY THUNDERSTORMS. SOUTH OF THE FRONT...TEMPERATURES WILL ONCE AGAIN RISE WELL ABOVE 100F WITH ASSOCIATED RELATIVE HUMIDITY VALUES LOWERING AT OR BELOW CRITICAL THRESHOLDS. SOUTHERLY WIND GUSTS OF UP TO OR EXCEEDING 25 MPH WILL BE EXPECTED AS WELL BY LATE AFTERNOON. NEZ204-206-208>210-219-240915- /O.NEW.KLBF.FW.W.0029.120724T1700Z-120725T0300Z/ /O.CON.KLBF.FW.W.0028.000000T0000Z-120724T0300Z/ EASTERN PANHANDLE/CRESCENT LAKE NWR- SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST- NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN- FRENCHMAN BASIN-LOESS PLAINS- 807 PM CDT MON JUL 23 2012 /707 PM MDT MON JUL 23 2012/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR ALL FIRE ZONES ACROSS WESTERN AND NORTH CENTRAL NEBRASKA... ...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TO 10 PM CDT /9 PM MDT/ TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR ALL FIRE ZONES ACROSS WESTERN AND NORTH CENTRAL NEBRASKA... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON CDT /11 AM MDT/ TO 10 PM CDT /9 PM MDT/ TUESDAY. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS BASIN...FIRE WEATHER ZONE 210 FRENCHMAN BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS. * WINDS...SOUTH 5 TO 15 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS... AND LOW RELATIVE HUMIDITY VALUES WILL PROMOTE EXPLOSIVE FIRE GROWTH THIS EVENING AND TUESDAY. UNDER THESE CONDITIONS...RANGE FIRES COULD ESCAPE CONTROL VERY QUICKLY. THUNDERSTORMS ARE POSSIBLE ALONG AND NORTH OF STATIONARY FRONT ACROSS NORTHWESTERN NEBRASKA. SOME STORMS WILL BE CAPABLE OF PRODUCING DRY LIGHTNING AND GUSTY ERRATIC WINDS WHICH FUEL 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 WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ JACOBS HTTP://WEATHER.GOV/LBF
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 11:01 AM MDT | Areal Flood Advisory | LBF | Lincoln | 24 hr |
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.