Alert archive / North Dakota / Red Flag Warnings in 2011
Red Flag Warning 1, NWS Grand Forks, ND
NWS Grand Forks, ND issued this red flag warning at May 17, 2011, 3:46 AM CDT for 8 counties in North Dakota. It took effect at May 17, 2011, 12:00 PM CDT. It was in force for 8 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, 2011, 3:46 AM CDT (08:46 UTC)
- In effect from
- May 17, 2011, 12:00 PM CDT
- Expired
- May 17, 2011, 8:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Grand Forks, ND
Counties Benson County, ND, Cavalier County, ND, Eddy County, ND, Griggs County, ND, Nelson County, ND, Ramsey County, ND, Towner County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 119 km from the middle of the area, began a volume at 08:44 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, 8.8 hours before the alert went out and 220 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
- 2834 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
988 WWUS83 KFGF 170846 RFWFGF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND FORKS ND 346 AM CDT TUE MAY 17 2011 ...WINDY AND DRY ACROSS THE DEVILS LAKE BASIN TODAY... .STRONG SOUTHEAST WIND WILL COMBINE WITH LOW RELATIVE HUMIDITY... RESULTING IN CRITICAL FIRE WEATHER CONDITIONS ACROSS THE DEVILS LAKE BASIN THIS AFTERNOON AND EARLY EVENING. NDZ006-007-014-015-024-026-028-054-180100- /O.NEW.KFGF.FW.W.0001.110517T1700Z-110518T0100Z/ TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-WESTERN WALSH- 346 AM CDT TUE MAY 17 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING FOR STRONG SOUTHEAST WIND AND LOW RELATIVE HUMIDITY ACROSS THE DEVILS LAKE BASIN... THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A RED FLAG WARNING FOR STRONG SOUTHEAST WIND AND LOW RELATIVE HUMIDITY ACROSS THE DEVILS LAKE BASIN...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING. A STRONG PRESSURE GRADIENT AND MIXING WINDS UP TO 40 MPH WILL RESULT IN SOUTHEASTERLY SURFACE WIND FROM 20 TO 25 MPH WITH GUSTS UP TO 35 MPH THIS AFTERNOON AND EARLY EVENING ACROSS THE DEVILS LAKE BASIN. THESE WINDS...COMBINED WITH MINIMUM RELATIVE HUMIDITY APPROACHING 20 PERCENT AND DRY FUELS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ROGERS
2 follow-up statements
631 WWUS83 KFGF 171651 RFWFGF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND FORKS ND 1151 AM CDT TUE MAY 17 2011 ...WINDY AND DRY ACROSS THE DEVILS LAKE BASIN TODAY... .STRONG SOUTHEAST WIND WILL COMBINE WITH LOW RELATIVE HUMIDITY... RESULTING IN CRITICAL FIRE WEATHER CONDITIONS ACROSS THE DEVILS LAKE BASIN THIS AFTERNOON AND EARLY EVENING. NDZ006-007-014-015-024-026-028-054-180100- /O.CON.KFGF.FW.W.0001.110517T1700Z-110518T0100Z/ TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-WESTERN WALSH- 1151 AM CDT TUE MAY 17 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR STRONG SOUTHEAST WIND AND LOW RELATIVE HUMIDITY ACROSS THE DEVILS LAKE BASIN... A STRONG PRESSURE GRADIENT AND MIXING WINDS UP TO 40 MPH WILL RESULT IN SOUTHEASTERLY SURFACE WIND FROM 20 TO 25 MPH WITH GUSTS UP TO 35 MPH THIS AFTERNOON AND EARLY EVENING ACROSS THE DEVILS LAKE BASIN. THESE WINDS...COMBINED WITH MINIMUM RELATIVE HUMIDITY APPROACHING 20 PERCENT AND DRY FUELS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
858 WWUS83 KFGF 180119 RFWFGF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND FORKS ND 819 PM CDT TUE MAY 17 2011 ...CRITICAL FIRE WEATHER CONDITIONS EASING AS WINDS DIMINISH... .WINDS HAVE DIMINISHED ENOUGH TO ALLOW THE RED FLAG WARNING TO EXPIRE. NDZ006-007-014-015-024-026-028-054-180230- /O.EXP.KFGF.FW.W.0001.000000T0000Z-110518T0100Z/ TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-WESTERN WALSH- 819 PM CDT TUE MAY 17 2011 ...RED FLAG WARNING HAS EXPIRED FOR STRONG WINDS AND LOW HUMIDITY ACROSS THE DEVILS LAKE BASIN AND ADJACENT AREAS. THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$
Nearby
Red Flag Warnings in North Dakota, 2011Every red flag warning in 2011
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.