Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 8, NWS Grand Forks, ND
NWS Grand Forks, ND issued this red flag warning at May 17, 2021, 3:58 AM CDT for 9 counties in North Dakota. It took effect at May 17, 2021, 2:00 PM CDT. 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
- May 17, 2021, 3:58 AM CDT (08:58 UTC)
- In effect from
- May 17, 2021, 2:00 PM CDT
- Expired
- May 17, 2021, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Grand Forks, ND
Counties Benson County, ND, Cavalier County, ND, Eddy County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Towner County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 116 km from the middle of the area, began a volume at 09:02 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, 9.0 hours before the alert went out and 232 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
- 2201 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
371 WWUS83 KFGF 170858 RFWFGF URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Forks ND 358 AM CDT Mon May 17 2021 NDZ006>008-014>016-024-026-028-054-180100- /O.NEW.KFGF.FW.W.0008.210517T1900Z-210518T0100Z/ Towner-Cavalier-Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson- Griggs-Western Walsh- 358 AM CDT Mon May 17 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY PORTIONS OF NORTHEASTERN NORTH DAKOTA... The National Weather Service in Grand Forks has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 2 PM this afternoon to 8 PM CDT this evening. * AFFECTED AREA...In North Dakota...Fire Weather Zones 006... 007...008...014...015...016...024...026...028 and 054. * TIMING...Monday Afternoon into early evening. * WINDS...South 20 to 25 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 18 percent. * TEMPERATURES...In the mid 80s. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. 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. && $$
1 follow-up statement
973 WWUS83 KFGF 180103 RFWFGF URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Forks ND 803 PM CDT Mon May 17 2021 NDZ006>008-014>016-024-026-028-054-180215- /O.EXP.KFGF.FW.W.0008.000000T0000Z-210518T0100Z/ Towner-Cavalier-Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson- Griggs-Western Walsh- 803 PM CDT Mon May 17 2021 ...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEASTERN NORTH DAKOTA... Relative humidity values are rising across the region this evening as surface temperatures cool, therefore the Red Flag Warning has been allowed to expire. $$
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.