Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 29, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Sep 17, 2021, 7:50 PM MDT for 11 counties in North Dakota. It took effect at Sep 18, 2021, 11:00 AM MDT. 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
- Sep 17, 2021, 7:50 PM MDT (01:50 UTC)
- In effect from
- Sep 18, 2021, 11:00 AM MDT
- Expired
- Sep 18, 2021, 7:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Bismarck, ND
Counties Adams County, ND, Billings County, ND, Bowman County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, Hettinger County, ND, McKenzie County, ND, Slope County, ND, Stark County, ND, Williams County, ND
The radar
The Bismarck radar (KBIS), 186 km from the middle of the area, began a volume at 01:52 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, 1.8 hours before the alert went out and 191 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
- 2870 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
889 WWUS83 KBIS 180150 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 850 PM CDT Fri Sep 17 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA LATE SATURDAY MORNING INTO EARLY EVENING... Critical fire weather conditions are expected once again Saturday for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 10 percent are expected with single digit percentages not out of the question. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-181400- /O.UPG.KBIS.FW.A.0017.210918T1700Z-210919T0100Z/ /O.NEW.KBIS.FW.W.0029.210918T1700Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 850 PM CDT Fri Sep 17 2021 /750 PM MDT Fri Sep 17 2021/ ...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TO 8 PM CDT /7 PM MDT/ SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN 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 noon CDT /11 AM MDT/ to 8 PM CDT /7 PM MDT/ Saturday. The Fire Weather Watch is no longer in effect. * WINDS...South to southwesterly 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Much of western 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. && $$ Telken
6 follow-up statements
391 WWUS83 KBIS 180238 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 938 PM CDT Fri Sep 17 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA LATE SATURDAY MORNING INTO EARLY EVENING... .Critical fire weather conditions are expected once again Saturday for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 10 percent are expected with single digit percentages not out of the question. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-181445- /O.CON.KBIS.FW.W.0029.210918T1700Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 938 PM CDT Fri Sep 17 2021 /838 PM MDT Fri Sep 17 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TO 8 PM CDT /7 PM MDT/ SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Much of western North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ Telken
831 WWUS83 KBIS 180854 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 354 AM CDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA LATE THIS MORNING INTO EARLY EVENING... .Critical fire weather conditions are expected today for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 10 percent are expected with single digit percentages not out of the question. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-182100- /O.CON.KBIS.FW.W.0029.210918T1700Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 354 AM CDT Sat Sep 18 2021 /254 AM MDT Sat Sep 18 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Much of western 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. && $$ EDWARDS
155 WWUS83 KBIS 181416 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 916 AM CDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA LATE THIS MORNING INTO EARLY EVENING... .Critical fire weather conditions are expected today for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 10 percent are expected with single digit percentages not out of the question. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-190100- /O.CON.KBIS.FW.W.0029.210918T1700Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 916 AM CDT Sat Sep 18 2021 /816 AM MDT Sat Sep 18 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 percent. * AFFECTED AREA...Much of western North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ MJ
975 WWUS83 KBIS 181724 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 1224 PM CDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA THIS AFTERNOON THROUGH EARLY EVENING... .Critical fire weather conditions are expected today for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 10 percent are expected with single digit percentages not out of the question. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-190100- /O.CON.KBIS.FW.W.0029.000000T0000Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 1224 PM CDT Sat Sep 18 2021 /1124 AM MDT Sat Sep 18 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 percent. * AFFECTED AREA...Much of western 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. && $$ MJ
687 WWUS83 KBIS 181934 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 234 PM CDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF WESTERN NORTH DAKOTA THIS AFTERNOON AND EARLY EVENING... .Critical fire weather conditions are expected this afternoon and evening for much of western North Dakota. Southerly to southwesterly winds could reach sustained speeds of around 15 to 25 mph, with gusts as high as 35 mph. Extremely low relative humidity values of around 8 percent are expected. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ001-009-017-018-031>033-040-041-043-044-190100- /O.CON.KBIS.FW.W.0029.000000T0000Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 234 PM CDT Sat Sep 18 2021 /134 PM MDT Sat Sep 18 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 percent. * AFFECTED AREA...Much of western North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ MJ
255 WWUS83 KBIS 190103 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 803 PM CDT Sat Sep 18 2021 ...RED FLAG WARNING HAS EXPIRED FOR WESTERN NORTH DAKOTA... .Relative humidity will continue to increase this evening as winds become lighter. NDZ001-009-017-018-031>033-040-041-043-044-190215- /O.EXP.KBIS.FW.W.0029.000000T0000Z-210919T0100Z/ Divide-Williams-McKenzie-Dunn-Golden Valley-Billings-Stark-Slope- Hettinger-Bowman-Adams- 803 PM CDT Sat Sep 18 2021 /703 PM MDT Sat Sep 18 2021/ ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF WESTERN NORTH DAKOTA... Relative humidity will continue to increase this evening as winds become lighter. $$ Hollan
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.