Alert archive / Nebraska / Red Flag Warnings in 2011
Red Flag Warning 10, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Jun 30, 2011, 4:11 AM MDT for 5 counties in Nebraska. It took effect at Jun 30, 2011, 11:00 AM MDT. It was in force for 3 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 30, 2011, 4:11 AM MDT (10:11 UTC)
- In effect from
- Jun 30, 2011, 11:00 AM MDT
- Expired
- Jun 30, 2011, 2:27 PM MDT
- In force
- 3 hr
- Issued by
- NWS North Platte, NE
Counties Chase County, NE, Frontier County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE
The radar
The North Platte radar (KLNX), 147 km from the middle of the area, began a volume at 10:15 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, 10.2 hours before the alert went out and 65 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
- 1506 J/kg
- Mixed-layer CIN
- -287 J/kg
- Mixed-layer LCL
- 2717 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
590 WWUS83 KLBF 301011 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 511 AM CDT THU JUN 30 2011 ...CRITICAL FIRE CONDITIONS LIKELY TODAY ACROSS FAR SOUTHWESTERN NEBRASKA... .TEMPERATURES THIS AFTERNOON WILL HIT THE CENTURY MARK ACROSS SOUTHWESTERN NEBRASKA IN ADVANCE OF AN APPROACHING COLD FRONT. GUSTY SOUTHERLY WINDS AROUND 25 MPH...COUPLED WITH MINIMUM RELATIVE HUMIDITY'S NEAR 15 PERCENT WILL ALLOW FOR EXPLOSIVE GROWTH OF FIRE THIS AFTERNOON. AT THIS TIME...THE MOST CRITICAL FIRE CONDITIONS ARE EXPECTED ACROSS CHASE...HAYES AND FRONTIER COUNTIES...WHERE AFTERNOON READINGS MAY TOP OUT AS HIGH AS 105 DEGREES. FIRE DANGER WILL DECREASE LATER THIS EVENING AS RELATIVE HUMIDITY'S RECOVER TO 40 TO 60 PERCENT. NEZ210-219-010100- /O.NEW.KLBF.FW.W.0010.110630T1700Z-110701T0100Z/ FRENCHMAN BASIN-LOESS PLAINS- 511 AM CDT THU JUN 30 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 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 FOR FREQUENT WIND GUSTS TO 25 MPH AND MINIMUM RELATIVE HUMIDITY'S ..WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING. * AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 210 FRENCHMAN BASIN...FIRE WEATHER ZONE 219 LOESS PLAINS. THE AREA OF HIGHEST CONCERN IS ACROSS CHASE...HAYES AND FRONTIER COUNTIES. * WIND...SOUTHERLY WINDS OF 10 TO 20 MPH...WITH GUSTS AROUND 25 MPH. * HUMIDITY...MINIMUM RELATIVE HUMIDITY'S OF ARUOND 15 PERCENT WILL BE COMMON THIS AFTERNOON. * IMPACTS...THE COMBINATION OF CURED FUELS...LOW RELATIVE HUMIDITY AND GUSTY WINDS...WILL ALLOW FIRES TO SPREAD QUICKLY THIS AFTERNOON. 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. && $$ CLB HTTP://WEATHER.GOV/NORTHPLATTE
1 follow-up statement
367 WWUS83 KLBF 302027 RFWLBF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORTH PLATTE NE 327 PM CDT THU JUN 30 2011 ...RED FLAG WARNING FOR SOUTHWEST NEBRASKA IS CANCELLED... .RED FLAG CONDITIONS HAVE REMAINED JUST SOUTH OF THE AREA...AND ARE NOT EXPECTED TO SPREAD NORTH INTO THE AREA. NEZ210-219-302130- /O.CAN.KLBF.FW.W.0010.000000T0000Z-110701T0100Z/ FRENCHMAN BASIN-LOESS PLAINS- 327 PM CDT THU JUN 30 2011 ...RED FLAG WARNING IS CANCELLED FOR FIRE WEATHER ZONES 210 AND 219... THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE RED FLAG WARNING. RED FLAG CRITERIA CONDITIONS HAVE REMAINED SOUTH OF THE AREA...AND ARE NOT EXPECTED TO SPREAD NORTH INTO THE AREA. $$ HTTP://WEATHER.GOV/NORTHPLATTE
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:14 PM MDT | Severe Thunderstorm Warning | LBF | Deuel, Garden | 61 min |
| Jun 30, 5:56 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Deuel, Garden, Keith | 64 min |
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.