Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 11, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Apr 9, 2021, 3:24 AM MDT for 23 counties in North Dakota. It took effect at Apr 9, 2021, 10:00 AM MDT. It was in force for 11 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 9, 2021, 3:24 AM MDT (09:24 UTC)
- In effect from
- Apr 9, 2021, 10:00 AM MDT
- Expired
- Apr 9, 2021, 9:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS Bismarck, ND
All 23 counties
Adams County, ND, Billings County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND
The radar
The Bismarck radar (KBIS), 125 km from the middle of the area, began a volume at 09:22 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, 9.4 hours before the alert went out and 130 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
- 3004 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
751 WWUS83 KBIS 090924 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 424 AM CDT Fri Apr 9 2021 ...RED FLAG WARNING FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA LATE THIS MORNING THROUGH THE EVENING... .Critical fire weather conditions are expected along and west of the Highway 83 corridor late this morning through the evening. Northwest winds will reach sustained speeds up to 30 mph with gusts as high as 50 mph. Minimum relative humidity values will fall into the 15 to 25 percent range, reaching their lowest values during the late afternoon. Light rain and snow is falling across portions of western North Dakota early this morning, but the strong winds and clearing skies this afternoon will lead to quickly drying fuels. NDZ001>003-009>011-017>021-031>035-040>046-092130- /O.UPG.KBIS.FW.A.0006.210409T1600Z-210410T0300Z/ /O.NEW.KBIS.FW.W.0011.210409T1600Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 424 AM CDT Fri Apr 9 2021 /324 AM MDT Fri Apr 9 2021/ ...RED FLAG WARNING IN EFFECT FROM 11 AM CDT /10 AM MDT/ THIS MORNING TO 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA... The National Weather Service in Bismarck has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM CDT /10 AM MDT/ this morning to 10 PM CDT /9 PM MDT/ this evening. The Fire Weather Watch is no longer in effect. * WINDS...Northwest up to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 15 percent. * AFFECTED AREA...Western and most of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ Hollan
5 follow-up statements
681 WWUS83 KBIS 091514 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 1014 AM CDT Fri Apr 9 2021 ...RED FLAG WARNING FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA THROUGH THE EVENING... .Critical fire weather conditions are expected along and west of the Highway 83 corridor late this morning through the evening. Northwest winds will reach sustained speeds up to 35 mph with gusts as high as 45 mph. Minimum relative humidity values will fall into the 15 to 25 percent range, reaching their lowest values during the late afternoon. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>003-009>011-017>021-031>035-040>046-100300- /O.CON.KBIS.FW.W.0011.210409T1600Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 1014 AM CDT Fri Apr 9 2021 /914 AM MDT Fri Apr 9 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA... * WINDS...Northwest 25 to 35 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 15 percent. * AFFECTED AREA...Western and most of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ EDWARDS
478 WWUS83 KBIS 091740 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 1240 PM CDT Fri Apr 9 2021 ...RED FLAG WARNING FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA THROUGH THE EVENING... .Critical fire weather conditions are expected along and west of the Highway 83 corridor this afternoon through the evening. Northwest winds will reach sustained speeds up to 35 mph with gusts as high as 45 mph. Minimum relative humidity values will fall into the 15 to 25 percent range, reaching their lowest values during the late afternoon. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>003-009>011-017>021-031>035-040>046-100300- /O.CON.KBIS.FW.W.0011.000000T0000Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 1240 PM CDT Fri Apr 9 2021 /1140 AM MDT Fri Apr 9 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA... * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 15 percent. * AFFECTED AREA...Western and most of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ EDWARDS
442 WWUS83 KBIS 091956 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 256 PM CDT Fri Apr 9 2021 ...RED FLAG WARNING FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA THROUGH THE EVENING... .Critical fire weather conditions are expected along and west of the Highway 83 corridor this afternoon through the evening. Northwest winds will reach sustained speeds up to 35 mph with gusts as high as 45 mph. Minimum relative humidity values will fall into the 15 to 25 percent range, reaching their lowest values during the late afternoon. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>003-009>011-017>021-031>035-040>046-100300- /O.CON.KBIS.FW.W.0011.000000T0000Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 256 PM CDT Fri Apr 9 2021 /156 PM MDT Fri Apr 9 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA... * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 15 percent. * AFFECTED AREA...Western and most of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ EDWARDS
031 WWUS83 KBIS 092328 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 628 PM CDT Fri Apr 9 2021 ...RED FLAG WARNING FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA THROUGH THE EVENING... .Critical fire weather conditions are expected along and west of the Highway 83 corridor through the evening. Northwest winds will reach sustained speeds up to 35 mph with gusts as high as 45 mph. Minimum relative humidity values will fall into the 15 to 25 percent range, reaching their lowest values during the late afternoon. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>003-009>011-017>021-031>035-040>046-100300- /O.CON.KBIS.FW.W.0011.000000T0000Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 628 PM CDT Fri Apr 9 2021 /528 PM MDT Fri Apr 9 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MOST OF CENTRAL NORTH DAKOTA... * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 11 percent. * AFFECTED AREA...Western and most of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ MJ
303 WWUS83 KBIS 100251 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 951 PM CDT Fri Apr 9 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM CDT/9 PM MDT... .Winds will continue to gradually diminish this evening and relative humidity values will gradually rise. Therefore the Red Flag Warning will be allowed to expire. NDZ001>003-009>011-017>021-031>035-040>046-100400- /O.EXP.KBIS.FW.W.0011.000000T0000Z-210410T0300Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McKenzie-Dunn- Mercer-Oliver-McLean-Golden Valley-Billings-Stark-Morton-Burleigh- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons- 951 PM CDT Fri Apr 9 2021 /851 PM MDT Fri Apr 9 2021/ ...RED FLAG WARNING WILL EXPIRE AT 10 PM CDT/9 PM MDT... .Winds will continue to gradually diminish this evening and relative humidity values will gradually rise. Therefore the Red Flag Warning will be allowed to expire. $$
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.