Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 4, NWS Grand Forks, ND
NWS Grand Forks, ND issued this red flag warning at Apr 3, 2021, 3:11 AM CDT for 12 counties in North Dakota. It took effect at Apr 3, 2021, 11:00 AM CDT. It was in force for 10 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 3, 2021, 3:11 AM CDT (08:11 UTC)
- In effect from
- Apr 3, 2021, 11:00 AM CDT
- Expired
- Apr 3, 2021, 9:00 PM CDT
- In force
- 10 hr
- Issued by
- NWS Grand Forks, ND
Counties Barnes County, ND, Benson County, ND, Cavalier County, ND, Eddy County, ND, Griggs County, ND, Nelson County, ND, Ramsey County, ND, Ransom County, ND, Sargent County, ND, Steele County, ND, Towner County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 77 km from the middle of the area, began a volume at 08:12 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.2 hours before the alert went out and 206 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
- 3647 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
608 WWUS83 KFGF 030811 RFWFGF URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Forks ND 311 AM CDT Sat Apr 3 2021 NDZ006-007-014-015-024-026-028-029-038-049-052-054-040200- /O.NEW.KFGF.FW.W.0004.210403T1600Z-210404T0200Z/ Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Griggs-Steele-Barnes- Ransom-Sargent-Western Walsh- 311 AM CDT Sat Apr 3 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 9 PM CDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR AREAS WEST OF THE RED RIVER VALLEY... The National Weather Service in Grand Forks has issued a Red Flag Warning for low relative humidity and gusty winds, which is in effect from 11 AM this morning to 9 PM CDT this evening. * AFFECTED AREA...In North Dakota...Fire Weather Zones 006... 007...014...015...024...026...028...029...038...049...052 and 054. * WINDS...South 15 to 25 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 17 percent. 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. && $$
1 follow-up statement
385 WWUS83 KFGF 040202 RFWFGF URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Forks ND 902 PM CDT Sat Apr 3 2021 NDZ006-007-014-015-024-026-028-029-038-049-052-054-040315- /O.EXP.KFGF.FW.W.0004.000000T0000Z-210404T0200Z/ Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Griggs-Steele-Barnes- Ransom-Sargent-Western Walsh- 902 PM CDT Sat Apr 3 2021 ...RED FLAG WARNING HAS EXPIRED... Winds will continue to decrease this evening and falling temperatures will allow relative humidity values to rise. Another dry and warm day is expected for tomorrow, but with less wind. $$
Nearby
Red Flag Warnings in North Dakota, 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.