Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 9, NWS North Platte, NE
NWS North Platte, NE issued this red flag warning at Aug 6, 2021, 1:52 AM MDT for 4 counties in Nebraska. It took effect at Aug 6, 2021, 12:00 PM MDT. It was in force for 6 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
- Aug 6, 2021, 1:52 AM MDT (07:52 UTC)
- In effect from
- Aug 6, 2021, 12:00 PM MDT
- Expired
- Aug 6, 2021, 6:00 PM MDT
- In force
- 6 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 07:55 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, 7.9 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
- 322 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 2749 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
053 WWUS83 KLBF 060752 RFWLBF URGENT - FIRE WEATHER MESSAGE National Weather Service North Platte NE 252 AM CDT Fri Aug 6 2021 NEZ210-070000- /O.UPG.KLBF.FW.A.0006.210806T1900Z-210807T0100Z/ /O.NEW.KLBF.FW.W.0009.210806T1800Z-210807T0000Z/ Frenchman Basin- 152 AM MDT Fri Aug 6 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FAR SOUTHWEST 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 noon today to 6 PM MDT this evening. The Fire Weather Watch is no longer in effect. * Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman Basin. * Winds...South 15 to 20 mph with gusts up to 30 mph. * Relative Humidity...As low as 15 percent. * Impacts...Expected conditions may result in rapid fire growth. Fires may become difficult to control or contain. 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
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 6:25 PM MDT | Special Weather Statement | LBF | Sheridan | 50 min |
| Aug 6, 5:55 PM MDT | Special Weather Statement | LBF | Sheridan | 50 min |
| Aug 6, 5:58 PM MDT | Special Weather Statement | LBF | Lincoln | 47 min |
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.