Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 12, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Nov 22, 2021, 1:19 PM MST for 22 counties in Nebraska. It took effect at Nov 23, 2021, 10:00 AM MST. 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
- Nov 22, 2021, 1:19 PM MST (20:19 UTC)
- In effect from
- Nov 23, 2021, 10:00 AM MST
- Expired
- Nov 23, 2021, 5:00 PM MST
- In force
- 7 hr
- Issued by
- NWS North Platte, NE
All 22 counties
Arthur County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Garden County, NE, Garfield County, NE, Grant 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, Rock County, NE, Sheridan County, NE, Thomas County, NE, Wheeler County, NE
The radar
The North Platte radar (KLNX), 8 km from the middle of the area, began a volume at 20:22 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 12:00Z, 8.3 hours before the alert went out and 90 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
- 2210 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 277 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
190 WWUS83 KLBF 222019 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 219 PM CST Mon Nov 22 2021 NEZ204-206-208-231030- /O.UPG.KLBF.FW.A.0009.211123T1700Z-211124T0000Z/ /O.NEW.KLBF.FW.W.0012.211123T1700Z-211124T0000Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest- 219 PM CST Mon Nov 22 2021 /119 PM MST Mon Nov 22 2021/ ...RED FLAG WARNING IN EFFECT FROM 11 AM CST /10 AM MST/ TO 6 PM CST /5 PM MST/ TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EASTERN NEBRASKA PANHANDLE AND THE SANDHILLS... 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 CST /10 AM MST/ to 6 PM CST /5 PM MST/ Tuesday. The Fire Weather Watch is no longer in effect. * 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. * Winds...Southwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 8 percent. * Impacts...Weather conditions will be favorable for rapid fire growth and erratic fire behavior. Fires 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. && $$ NEZ209-231030- /O.NEW.KLBF.FW.W.0012.211123T1700Z-211124T0000Z/ Loup Rivers Basin- 219 PM CST Mon Nov 22 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTH CENTRAL NEBRASKA... The National Weather Service in North Platte has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 6 PM CST Tuesday. * Affected Area...In NEZ209...Fire Weather Zone 209 Loup Rivers Basin. * Winds...South 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 16 percent. * Impacts...Weather conditions will be favorable for rapid fire growth and erratic fire behavior. Fires may be difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/LBF
3 follow-up statements
935 WWUS83 KLBF 230909 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 309 AM CST Tue Nov 23 2021 NEZ204-206-208-209-232315- /O.CON.KLBF.FW.W.0012.211123T1700Z-211124T0000Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 309 AM CST Tue Nov 23 2021 /209 AM MST Tue Nov 23 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM CST /10 AM MST/ THIS MORNING TO 6 PM CST /5 PM MST/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTH CENTRAL NEBRASKA... * 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...Southwest 15 to 25 mph with gusts up to 30 mph. * Relative Humidity...As low as 12 percent. * Impacts...Weather conditions will be favorable for rapid fire growth and erratic fire behavior. Fires 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. && $$ http://weather.gov/LBF
733 WWUS83 KLBF 231859 AAA RFWLBF URGENT - FIRE WEATHER MESSAGE...UPDATED National Weather Service North Platte NE 1259 PM CST Tue Nov 23 2021 NEZ204-206-208-209-240000- /O.CON.KLBF.FW.W.0012.000000T0000Z-211124T0000Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 1259 PM CST Tue Nov 23 2021 /1159 AM MST Tue Nov 23 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTH CENTRAL NEBRASKA... * Affected Area...In NEZ204...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. In NEZ206...Fire Weather Zone 206 Sandhills/Valentine NWR/Nebraska National Forest. In NEZ208... Fire Weather Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest. In NEZ209...Fire Weather Zone 209 Loup Rivers Basin. * Winds...Southwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidity...As low as 9 percent. * Impacts...Weather conditions will be favorable for rapid fire growth and erratic fire behavior. Fires may be difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/LBF
475 WWUS83 KLBF 232358 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 558 PM CST Tue Nov 23 2021 NEZ204-206-208-209-240100- /O.EXP.KLBF.FW.W.0012.000000T0000Z-211124T0000Z/ Eastern Panhandle/Crescent Lake NWR- Sandhills/Valentine NWR/Nebraska National Forest- Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest-Loup Rivers Basin- 558 PM CST Tue Nov 23 2021 /458 PM MST Tue Nov 23 2021/ ...RED FLAG WARNING WILL EXPIRE AT 6 PM CST /5 PM MST/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EASTERN PANHANDLE AND THE SANDHILLS... Wind speeds have generally waned and humidity levels have begun to improve across the Sandhills, allowing the Red Flag Warning to expire. A couple items of note however, humidity recovery overall will be rather poor tonight and northwest winds will be blustery tomorrow with gusts exceeding 35 mph. Even though critical fire weather conditions have subsided, concerns remain elevated into tomorrow. $$ 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 |
|---|---|---|---|---|
| Nov 22, 1:02 AM MST | Fire Weather Watch | LBF | Arthur, Blaine, Boyd, Brown, Cherry, Deuel and 12 more | 12 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.