Alert archive / Nebraska / Red Flag Warnings in 2020
Red Flag Warning 2, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Feb 22, 2020, 12:13 PM MST for 4 counties in Nebraska. It was in force for 5 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
- Feb 22, 2020, 12:13 PM MST (19:13 UTC)
- Expired
- Feb 22, 2020, 5:00 PM MST
- In force
- 5 hr
- Issued by
- NWS North Platte, NE
Counties Chase County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE
The radar
The North Platte radar (KLNX), 148 km from the middle of the area, began a volume at 19:15 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 12:00Z, 7.2 hours before the alert went out and 73 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
- 3722 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
654 WWUS83 KLBF 221913 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 113 PM CST Sat Feb 22 2020 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED OVER FAR SW NEBRASKA THIS AFTERNOON... NEZ210-230000- /O.NEW.KLBF.FW.W.0002.200222T1913Z-200223T0000Z/ Frenchman Basin- 1213 PM MST Sat Feb 22 2020 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FAR SOUTHWESTERN NEBRASKA... The National Weather Service in North Platte has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY, which is in effect until 5 PM MST this afternoon. * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. * Winds...Northwest 10 to 20 mph with gusts up to 25 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fires which may occur, have a high potential to spread rapidly and 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. && $$ http://weather.gov/LBF
1 follow-up statement
657 WWUS83 KLBF 230005 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 605 PM CST Sat Feb 22 2020 NEZ210-230115- /O.EXP.KLBF.FW.W.0002.000000T0000Z-200223T0000Z/ Frenchman Basin- 505 PM MST Sat Feb 22 2020 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR FAR SOUTHWESTERN NEBRASKA... Winds have lessened over far southwest Nebraska the last three hours with winds generally less than 10 miles across the area. Meantime, relative humidity is starting to slowly rise and is anticipated to rise above 20 percent by 6 PM MST. As such, critical fire weather conditions are no longer expected and the red flag warning was allowed to expired. Fire weather concerns will be low low tomorrow with cooler conditions in place, highs in the upper 40s. $$ ET http://weather.gov/LBF
Nearby
Red Flag Warnings in Nebraska, 2020Every red flag warning in 2020
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.