Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 9, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Apr 4, 2021, 2:41 AM MDT for 29 counties in North Dakota. It took effect at Apr 4, 2021, 10:00 AM MDT. 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 4, 2021, 2:41 AM MDT (08:41 UTC)
- In effect from
- Apr 4, 2021, 10:00 AM MDT
- Expired
- Apr 4, 2021, 8:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS Bismarck, ND
All 29 counties
Adams County, ND, Billings County, ND, Bottineau 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, Kidder County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.7 hours before the alert went out and 101 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
- 4012 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
842 WWUS83 KBIS 040841 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 341 AM CDT Sun Apr 4 2021 ...RED FLAG WARNING FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA TODAY... .Another day of critical fire weather conditions for western and much of central North Dakota, from late this Sunday morning through early this evening. Southeast winds sustained to around 20 mph with a few gusts to 35 mph are expected. Over western North Dakota, gusty southeast winds will transition to more westerly in the afternoon. Minimum relative humidity values will fall to as low as 10 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ023-037-048-051-040945- /O.CAN.KBIS.FW.A.0005.210404T1700Z-210405T0100Z/ Wells-Stutsman-La Moure-Dickey- 341 AM CDT Sun Apr 4 2021 ...FIRE WEATHER WATCH IS CANCELLED FOR PARTS OF EASTERN NORTH DAKOTA TODAY... The National Weather Service in Bismarck has cancelled the Fire Weather Watch for portions of eastern North Dakota. .While humidity will be low, sustained winds between 10 and 15 mph should keep fire weather conditions below critical for eastern North Dakota. However, the fire danger remains very high. $$ NDZ001>003-009>012-017>022-033>036-041-042-044>047-050-042045- /O.UPG.KBIS.FW.A.0005.210404T1700Z-210405T0100Z/ /O.NEW.KBIS.FW.W.0009.210404T1600Z-210405T0200Z/ Divide-Burke-Renville-Williams-Mountrail-Ward-McHenry-McKenzie- Dunn-Mercer-Oliver-McLean-Sheridan-Stark-Morton-Burleigh-Kidder- Hettinger-Grant-Adams-Sioux-Emmons-Logan-McIntosh- 341 AM CDT Sun Apr 4 2021 /241 AM MDT Sun Apr 4 2021/ ...RED FLAG WARNING IN EFFECT FROM 11 AM CDT /10 AM MDT/ THIS MORNING TO 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA... The National Weather Service in Bismarck has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM CDT /10 AM MDT/ this morning to 9 PM CDT /8 PM MDT/ this evening. The Fire Weather Watch is no longer in effect. * WINDS...Southeast to 20 mph with gusts up to 35 mph. Winds will become more westerly over western North Dakota in the afternoon. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Western and much central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ NDZ004-031-032-040-043-042045- /O.NEW.KBIS.FW.W.0009.210404T1600Z-210405T0200Z/ Bottineau-Golden Valley-Billings-Slope-Bowman- 341 AM CDT Sun Apr 4 2021 /241 AM MDT Sun Apr 4 2021/ ...RED FLAG WARNING IN EFFECT FROM 11 AM CDT /10 AM MDT/ THIS MORNING TO 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MUCH 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 9 PM CDT /8 PM MDT/ this evening. * WINDS...Southeast to 20 mph with gusts up to 35 mph. Winds will become more westerly over western North Dakota in the afternoon. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Western and much 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. && $$ Heinert
3 follow-up statements
769 WWUS83 KBIS 041545 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 1045 AM CDT Sun Apr 4 2021 ...RED FLAG WARNING FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA TODAY... .Critical fire weather conditions are expected for western and much of central North Dakota through early this evening. Across central North Dakota, expect southeast winds sustained to around 20 mph with a few gusts to 35 mph. Over western North Dakota, gusty southeast winds will transition to more westerly in the afternoon. Minimum relative humidity values will fall to as low as 10 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>004-009>012-017>022-031>036-040>047-050-050200- /O.CON.KBIS.FW.W.0009.210404T1600Z-210405T0200Z/ Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry- McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Slope-Hettinger-Grant- Bowman-Adams-Sioux-Emmons-Logan-McIntosh- 1045 AM CDT Sun Apr 4 2021 /945 AM MDT Sun Apr 4 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA... * WINDS...Southeast 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Western and much of central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$
410 WWUS83 KBIS 042103 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 403 PM CDT Sun Apr 4 2021 ...RED FLAG WARNING FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA TODAY... .Critical fire weather conditions are expected for western and much of central North Dakota through early this evening. Across central North Dakota, expect southeast winds sustained to around 20 mph with a few gusts to 35 mph. Over western North Dakota, gusty southeast winds will transition to more westerly in the afternoon. Minimum relative humidity values will fall to as low as 10 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ001>004-009>012-017>022-031>036-040>047-050-050200- /O.CON.KBIS.FW.W.0009.000000T0000Z-210405T0200Z/ Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry- McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Slope-Hettinger-Grant- Bowman-Adams-Sioux-Emmons-Logan-McIntosh- 403 PM CDT Sun Apr 4 2021 /303 PM MDT Sun Apr 4 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA... * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Western and much 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. && $$
813 WWUS83 KBIS 050158 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 858 PM CDT Sun Apr 4 2021 ...RED FLAG WARNING WILL EXPIRE AT 9PM CDT/8 PM MDT... .Winds will continue to gradually diminish this evening and relative humidity values will gradually rise. Therefore the Red Flag Warning will be allowed to expire. NDZ001>004-009>012-017>022-031>036-040>047-050-050300- /O.EXP.KBIS.FW.W.0009.000000T0000Z-210405T0200Z/ Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry- McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Slope-Hettinger-Grant- Bowman-Adams-Sioux-Emmons-Logan-McIntosh- 858 PM CDT Sun Apr 4 2021 /758 PM MDT Sun Apr 4 2021/ ...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT /8 PM MDT/ THIS EVENING... Winds will continue to gradually diminish this evening and relative humidity values will gradually rise. Therefore the Red Flag Warning will be allowed to expire. $$
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 8:15 PM MDT | Fire Weather Watch | BIS | Adams, Burke, Burleigh, Dickey, Divide, Dunn and 22 more | 6 hr |
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.