Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 8, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Apr 25, 2021, 1:39 AM MDT for 12 counties in Nebraska. It took effect at Apr 26, 2021, 11:00 AM MDT. 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 25, 2021, 1:39 AM MDT (07:39 UTC)
- In effect from
- Apr 26, 2021, 11:00 AM MDT
- Expired
- Apr 26, 2021, 5:56 PM MDT
- In force
- 7 hr
- Issued by
- NWS North Platte, NE
Counties Arthur County, NE, Chase County, NE, Cherry County, NE, Deuel County, NE, Frontier 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), 108 km from the middle of the area, began a volume at 07:39 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, 7.7 hours before the alert went out and 84 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
- 1559 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
212 WWUS83 KLBF 250739 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 239 AM CDT Sun Apr 25 2021 ...CRITICAL FIRE WEATHER CONDITIONS MONDAY... Temperatures in the 70s and 80s and very dry air will result in low humidity Monday afternoon. The low humidity and west and southwest winds gusting to 30 mph will lead to critical fire weather conditions across parts of western and north central Nebraska. NEZ210-219-252145- /O.UPG.KLBF.FW.A.0004.210426T1700Z-210427T0200Z/ /O.NEW.KLBF.FW.W.0008.210426T1700Z-210427T0200Z/ Frenchman Basin-Loess Plains- 239 AM CDT Sun Apr 25 2021 /139 AM MDT Sun Apr 25 2021/ ...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TO 9 PM CDT /8 PM MDT/ MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRENCHMAN BASIN AND LOESS PLAINS... 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 9 PM CDT /8 PM MDT/ Monday. The Fire Weather Watch is no longer in effect. * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. In NEZ219...Fire Weather Zone 219 Loess Plains. * Winds...Southwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidity...As low as 9 percent. * Impacts...Any fires which do develop have a high probability to spread rapidly and be difficult to 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 can contribute to extreme fire behavior. && $$ NEZ204-206-208-209-252145- /O.NEW.KLBF.FW.A.0005.210426T1700Z-210427T0200Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 239 AM CDT Sun Apr 25 2021 /139 AM MDT Sun Apr 25 2021/ ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NIOBRARA VALLEY...EASTERN PANHANDLE...LOUP RIVERS BASIN AND THE SANDHILLS... The National Weather Service in North Platte has issued a Fire Weather Watch FOR WIND AND LOW RELATIVE HUMIDITY, which is in effect from Monday afternoon through Monday evening. * Affected Area...In NEZ204...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. In NEZ206...Fire Weather Zone 206 Sandhills/Valentine NWR/Nebraska National Forest. In NEZ208... Fire Weather Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest. In NEZ209...Fire Weather Zone 209 Loup Rivers Basin. * Winds...West 10 to 20 mph with gusts up to 30 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fires which do develop may spread rapidly and be difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ http://weather.gov/LBF
4 follow-up statements
766 WWUS83 KLBF 252054 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 354 PM CDT Sun Apr 25 2021 ...CRITICAL FIRE WEATHER CONDITIONS TOMORROW... Temperatures in the 70s to upper 80s and very dry air will result in low humidity values tomorrow afternoon. The low humidity and west and southwest winds gusting to 25 mph will lead to critical fire weather conditions across parts of western and north central Nebraska. NEZ210-219-261100- /O.CON.KLBF.FW.W.0008.210426T1700Z-210427T0200Z/ Frenchman Basin-Loess Plains- 354 PM CDT Sun Apr 25 2021 /254 PM MDT Sun Apr 25 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TO 9 PM CDT /8 PM MDT/ MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRENCHMAN BASIN AND LOESS PLAINS... * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. In NEZ219...Fire Weather Zone 219 Loess Plains. * Winds...Southwest 10 to 15 mph with gusts up to 25 mph. * Relative Humidity...As low as 10 percent. * Impacts...Any fires which do develop have a high probability to spread rapidly and be difficult to 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 can contribute to extreme fire behavior. && $$ NEZ204-206-208-209-261100- /O.CON.KLBF.FW.A.0005.210426T1700Z-210427T0200Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 354 PM CDT Sun Apr 25 2021 /254 PM MDT Sun Apr 25 2021/ ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NIOBRARA VALLEY...EASTERN PANHANDLE...LOUP RIVERS BASIN AND THE SANDHILLS... * Affected Area...In NEZ204...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. In NEZ206...Fire Weather Zone 206 Sandhills/Valentine NWR/Nebraska National Forest. In NEZ208... Fire Weather Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest. In NEZ209...Fire Weather Zone 209 Loup Rivers Basin. * Winds...West 5 to 15 mph with gusts up to 25 mph. * Relative Humidity...As low as 10 to 20 percent is possible. * Impacts...Any fires which do develop may spread rapidly and be difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ http://weather.gov/LBF Brown/Sinclair
341 WWUS83 KLBF 260826 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 326 AM CDT Mon Apr 26 2021 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... Temperatures in the 70s to upper 80s and very dry air will result in low humidity values this afternoon. The low humidity and west and southwest winds gusting to 25 mph will lead to critical fire weather conditions across zone 204 in the western Sandhills and zones 210 and 219 in southwest Nebraska. NEZ206-208-209-260930- /O.CAN.KLBF.FW.A.0005.210426T1700Z-210427T0200Z/ Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 326 AM CDT Mon Apr 26 2021 ...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NIOBRARA VALLEY...EASTERN PANHANDLE...LOUP RIVERS BASIN AND THE SANDHILLS... The National Weather Service in North Platte has cancelled the Fire Weather Watch. While low humidity below 15 percent in some areas will occur this afternoon, winds will be light southwest with any wind gusts expected to be 15 mph or less. Therefore, the Fire Weather Watch has been cancelled for zones 206, 208, and 209. Zone 206 has been upgraded to a Red Flag Warning. $$ NEZ204-262230- /O.UPG.KLBF.FW.A.0005.210426T1700Z-210427T0200Z/ /O.EXA.KLBF.FW.W.0008.210426T1700Z-210427T0200Z/ Eastern Panhandle/Crescent Lake NWR- 226 AM MDT Mon Apr 26 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EASTERN PANHANDLE AND CRESCENT LAKE NWR... The National Weather Service in North Platte has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY, which is in effect from 11 AM this morning to 8 PM MDT this evening. The Fire Weather Watch is no longer in effect. * Affected Area...In NEZ204...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. * Winds...West to southwest 10 to 20 mph with gusts up to 25 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fires which do develop may spread rapidly and be difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ210-219-262230- /O.CON.KLBF.FW.W.0008.210426T1700Z-210427T0200Z/ Frenchman Basin-Loess Plains- 326 AM CDT Mon Apr 26 2021 /226 AM MDT Mon Apr 26 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRENCHMAN BASIN AND LOESS PLAINS... * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. In NEZ219...Fire Weather Zone 219 Loess Plains. * Winds...West wind becoming south 10 to 15 mph with gusts up to 25 mph. * Relative Humidity...As low as 10 percent. * Impacts...Any fires which do develop have a high probability to spread rapidly and be difficult to 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 can contribute to extreme fire behavior. && $$ http://weather.gov/LBF
522 WWUS83 KLBF 261912 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 212 PM CDT Mon Apr 26 2021 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... Temperatures in the 70s to upper 80s and very dry air will result in low humidity values this afternoon. The low humidity and west and southwest winds gusting up to 20 to 25 mph will lead to critical fire weather conditions across zones 210 and 219 in southwest Nebraska. NEZ204-262015- /O.CAN.KLBF.FW.W.0008.000000T0000Z-210427T0200Z/ Eastern Panhandle/Crescent Lake NWR- 112 PM MDT Mon Apr 26 2021 ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EASTERN PANHANDLE AND CRESCENT LAKE NWR... The National Weather Service in North Platte has cancelled the Red Flag Warning. Winds will remain under 15 MPH in the eastern panhandle and western Sandhills this afternoon, so critical fire weather conditions are not expected. $$ NEZ210-219-270200- /O.CON.KLBF.FW.W.0008.000000T0000Z-210427T0200Z/ Frenchman Basin-Loess Plains- 212 PM CDT Mon Apr 26 2021 /112 PM MDT Mon Apr 26 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRENCHMAN BASIN AND LOESS PLAINS... * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. In NEZ219...Fire Weather Zone 219 Loess Plains. * Winds...Variable winds at around 10 MPH with possible gusts of 20 to 25 MPH. * Relative Humidity...As low as 15 percent. * Impacts...Any fires which do develop may be difficult to 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 can contribute to extreme fire behavior. && $$
951 WWUS83 KLBF 262356 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 656 PM CDT Mon Apr 26 2021 NEZ210-219-270100- /O.CAN.KLBF.FW.W.0008.000000T0000Z-210427T0200Z/ Frenchman Basin-Loess Plains- 656 PM CDT Mon Apr 26 2021 /556 PM MDT Mon Apr 26 2021/ ...RED FLAG WARNING IS CANCELLED FOR FRENCHMAN BASIN AND LOESS PLAINS... The National Weather Service in North Platte has cancelled the Red Flag Warning. Though humidity remains low, winds have weakened across southwest Nebraska. Humidity values will continue to increase into the overnight tonight and fire weather concerns will continue to decrease. $$ 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 |
|---|---|---|---|---|
| Apr 25, 1:39 AM MDT | Fire Weather Watch | LBF | Arthur, Blaine, Boyd, Brown, Cherry, Custer and 16 more | 25 hr |
Nearby
Red Flag Warnings in Nebraska, 2021Every red flag warning in 2021
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.