Alert archive / Nebraska / Red Flag Warnings in 2011
Red Flag Warning 6, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Apr 12, 2011, 4:03 AM CDT for 18 counties in Nebraska. It took effect at Apr 12, 2011, 12:00 PM CDT. It was in force for 7 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
- Apr 12, 2011, 4:03 AM CDT (09:03 UTC)
- In effect from
- Apr 12, 2011, 12:00 PM CDT
- Expired
- Apr 12, 2011, 6:50 PM CDT
- In force
- 7 hr
- Issued by
- NWS North Platte, NE
Counties Blaine County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer County, NE, Frontier County, NE, Garfield County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Thomas County, NE, Wheeler County, NE
The radar
The North Platte radar (KLNX), 45 km from the middle of the area, began a volume at 09:02 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, 9.1 hours before the alert went out and 62 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
- 2926 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
312 WWUS83 KLBF 120903 AAA RFWLBF URGENT - FIRE WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE NORTH PLATTE NE 403 AM CDT TUE APR 12 2011 ...CRITICAL FIRE DANGER THIS AFTERNOON AND EVENING... .THE COMBINATION OF STRONG SOUTHERLY WIND GUSTS WITH RELATIVE HUMIDITY VALUES BELOW 15 PERCENT WILL CREATE RED FLAG CONDITIONS. SURFACE LOW PRESSURE WILL DEEPEN OVER THE HIGH PLAINS OF COLORADO THIS AFTERNOON AND LIFT A WARM FRONT INTO SOUTHWEST NEBRASKA. SOUTH WINDS WILL INCREASE AND GUST TO NEAR 30 MPH. HUMIDITY WILL PLUMMET BELOW 15 PERCENT. NEZ210-219-130200- /O.UPG.KLBF.FW.A.0004.110412T1700Z-110413T0200Z/ /O.NEW.KLBF.FW.W.0006.110412T1700Z-110413T0200Z/ FRENCHMAN BASIN-LOESS PLAINS- 403 AM CDT TUE APR 12 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 210 AND 219... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 210 FRENCHMAN BASIN EAST OF HIGHWAY 61 AND ALL OF FIRE WEATHER ZONE 219 LOESS PLAINS. * WIND...SOUTH AND SOUTHEAST AT 15 TO 20 MPH WITH GUSTS TO NEAR 30 MPH. * HUMIDITY...10 TO 15 PERCENT. * IMPACTS...DANGEROUSLY DRY FUELS AND WITH FAVORABLE WEATHER CONDITIONS WILL CAUSE ANY FIRE TO QUICKLY GET OUT OF CONTROL. 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/NORTHPLATTE
2 follow-up statements
059 WWUS83 KLBF 121813 AAA RFWLBF URGENT - FIRE WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE NORTH PLATTE NE 113 PM CDT TUE APR 12 2011 ...CRITICAL FIRE DANGER THIS AFTERNOON AND EVENING... .THE COMBINATION OF STRONG SOUTHERLY WIND GUSTS WITH RELATIVE HUMIDITY VALUES AROUND 15 PERCENT WILL CREATE RED FLAG CONDITIONS. SURFACE LOW PRESSURE WILL DEEPEN OVER THE HIGH PLAINS OF COLORADO THIS AFTERNOON AND LIFT A WARM FRONT INTO SOUTHWEST AND PORTIONS OF NORTH CENTRAL NEBRASKA. SOUTHERLY WINDS GUST TO NEAR 30 MPH WILL COMBINE WITH RELATIVE HUMIDITY VALUES OF AROUND 15 PERCENT TO CREATE CRITICAL FIRE WEATHER CONDITIONS. A COLD FRONT WILL PUSH SOUTHEAST ACROSS THE AREA LATER THIS AFTERNOON AND EVENING...CREATING AN ABRUPT WIND SWITCH TO THE NORTH OR NORTHWEST. NEZ206-209-130200- /O.EXA.KLBF.FW.W.0006.000000T0000Z-110413T0200Z/ SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST-LOUP RIVERS BASIN- 113 PM CDT TUE APR 12 2011 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 206 AND 209... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 206 SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/SAMUEL R MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 209 LOUP RIVERS BASIN. * WIND...SOUTHWEST AND SOUTH AT 15 TO 20 MPH WITH GUSTS TO NEAR 30 MPH. LATER THIS AFTERNOON A COLD FRONT WILL PUSH SOUTHEAST ACROSS THE AREA...SWITCHING WINDS TO THE NORTHWEST AND NORTH STILL GUSTING TO NEAR 30 MPH. * HUMIDITY...AROUND 15 PERCENT. * IMPACTS...DANGEROUSLY DRY FUELS AND WITH FAVORABLE WEATHER CONDITIONS WILL CAUSE ANY FIRE TO QUICKLY GET OUT OF CONTROL. 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. && $$ NEZ210-219-130200- /O.CON.KLBF.FW.W.0006.000000T0000Z-110413T0200Z/ FRENCHMAN BASIN-LOESS PLAINS- 113 PM CDT TUE APR 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 210 AND 219... * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 210 FRENCHMAN BASIN...FIRE WEATHER ZONE 219 LOESS PLAINS. * WIND...SOUTH AND SOUTHEAST AT 15 TO 20 MPH WITH GUSTS TO NEAR 30 MPH. THIS EVENING WINDS WILL SWITCH TO THE NORTH AND NORTHWEST AS A COLD FRONT PUSHES SOUTHEAST ACROSS THE AREA...STILL GUSTING AT TIMES TO NEAR 30 MPH. * HUMIDITY...AROUND 15 PERCENT. * IMPACTS...DANGEROUSLY DRY FUELS AND WITH FAVORABLE WEATHER CONDITIONS WILL CAUSE ANY FIRE TO QUICKLY GET OUT OF CONTROL. 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. && $$ HTTP://WEATHER.GOV/NORTHPLATTE
134 WWUS83 KLBF 122350 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 650 PM CDT TUE APR 12 2011 ...CRITICAL FIRE DANGER COMING TO AN END ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL NEBRASKA... NEZ206-209-210-219-130100- /O.CAN.KLBF.FW.W.0006.000000T0000Z-110413T0200Z/ SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R MCKELVIE NATIONAL FOREST-LOUP RIVERS BASIN- FRENCHMAN BASIN-LOESS PLAINS- 650 PM CDT TUE APR 12 2011 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 206...209...210 AND 219... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELED THE RED FLAG WARNING. RELATIVE HUMIDITY ACROSS SOUTHWESTERN AND CENTRAL NEBRASKA HAVE REBOUNDED TO 20 TO 25 PERCENT AND WILL CONTINUE TO RISE INTO THE EVENING HOURS. SOUTHERLY WINDS WILL SHIFT TO THE NORTH AT 10 TO 20 MPH OVER THE NEXT 1 TO 3 HOURS AS A COLD FRONT DROPS SOUTH INTO CENTRAL AND SOUTHWESTERN NEBRASKA. $$ BUTTLER HTTP://WEATHER.GOV/NORTHPLATTE
Nearby
Red Flag Warnings in Nebraska, 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.