Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 14, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at May 1, 2021, 2:18 AM MDT for 27 counties in North Dakota. It took effect at May 1, 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
- May 1, 2021, 2:18 AM MDT (08:18 UTC)
- In effect from
- May 1, 2021, 11:00 AM MDT
- Expired
- May 1, 2021, 7:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Bismarck, ND
All 27 counties
Adams County, ND, Billings County, ND, Bowman County, ND, Burleigh County, ND, Dickey County, ND, Dunn County, ND, Emmons County, ND, Foster County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Stutsman County, ND, Wells County, ND, Williams County, ND
The radar
The Bismarck radar (KBIS), 40 km from the middle of the area, began a volume at 08:17 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, 8.3 hours before the alert went out and 44 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
- 2620 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 340 m²/s²
- 0-3 km storm-relative helicity
- 538 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
534 WWUS83 KBIS 010818 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 318 AM CDT Sat May 1 2021 ...RED FLAG WARNING FOR SOUTH CENTRAL AND MUCH OF WESTERN NORTH DAKOTA TODAY INTO THIS EVENING... .Critical fire weather conditions can be expected across south central and much of western North Dakota mid-day today into this evening. Winds will be northwesterly sustained to 25 mph with gusts to 35 mph. Minimum relative humidity values are expected to fall to as low as 16 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ009-017>021-031>037-040>048-050-051-020000- /O.NEW.KBIS.FW.W.0014.210501T1700Z-210502T0100Z/ Williams-McKenzie-Dunn-Mercer-Oliver-McLean-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Stutsman-Slope-Hettinger- Grant-Bowman-Adams-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 318 AM CDT Sat May 1 2021 /218 AM MDT Sat May 1 2021/ ...RED FLAG WARNING 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 SOUTH CENTRAL AND 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/ today to 8 PM CDT /7 PM MDT/ this evening. * WINDS...Northwest to 25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...As low as 16 percent. * AFFECTED AREA...South central and 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. && $$
4 follow-up statements
973 WWUS83 KBIS 011343 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 843 AM CDT Sat May 1 2021 ...RED FLAG WARNING FOR SOUTH CENTRAL AND MUCH OF WESTERN NORTH DAKOTA TODAY INTO THIS EVENING... .Critical fire weather conditions are expected across south central and much of western North Dakota late this morning into this evening. Winds will be northwesterly sustained to 25 mph with gusts to 35 mph. Minimum relative humidity values are expected to fall to as low as 16 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ009-017>021-031>037-040>048-050-051-020100- /O.CON.KBIS.FW.W.0014.210501T1700Z-210502T0100Z/ Williams-McKenzie-Dunn-Mercer-Oliver-McLean-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Stutsman-Slope-Hettinger- Grant-Bowman-Adams-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 843 AM CDT Sat May 1 2021 /743 AM MDT Sat May 1 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH CENTRAL AND MUCH OF WESTERN NORTH DAKOTA... * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 16 percent. * AFFECTED AREA...South central and much of western North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$
364 WWUS83 KBIS 011442 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 942 AM CDT Sat May 1 2021 ...RED FLAG WARNING FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA TODAY INTO THIS EVENING... .Critical fire weather conditions are expected most of western and central North Dakota late this morning into this evening. Winds will be northwesterly sustained to 25 mph with gusts to 35 mph. Minimum relative humidity values are expected to fall to as low as 16 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ022-023-025-020100- /O.EXA.KBIS.FW.W.0014.210501T1700Z-210502T0100Z/ Sheridan-Wells-Foster- 942 AM CDT Sat May 1 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF WESTERN AND 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 until 8 PM CDT this evening. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 16 percent. * AFFECTED AREA...Most of western and 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. && $$ NDZ009-017>021-031>037-040>048-050-051-020100- /O.CON.KBIS.FW.W.0014.210501T1700Z-210502T0100Z/ Williams-McKenzie-Dunn-Mercer-Oliver-McLean-Golden Valley- Billings-Stark-Morton-Burleigh-Kidder-Stutsman-Slope-Hettinger- Grant-Bowman-Adams-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 942 AM CDT Sat May 1 2021 /842 AM MDT Sat May 1 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA... * WINDS...Northwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 16 percent. * AFFECTED AREA...Most of western and central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$
755 WWUS83 KBIS 011845 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 145 PM CDT Sat May 1 2021 ...RED FLAG WARNING FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA INTO THIS EVENING... .Critical fire weather conditions are expected most of western and central North Dakota into this evening. Northwesterly sustained winds to 30 mph with gusts to 40 mph are expected through the early evening. Minimum relative humidity values are expected to fall to as low as 10 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ009-017>023-025-031>037-040>048-050-051-020100- /O.CON.KBIS.FW.W.0014.000000T0000Z-210502T0100Z/ Williams-McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Wells-Foster- Golden Valley-Billings-Stark-Morton-Burleigh-Kidder-Stutsman- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-Logan-La Moure- McIntosh-Dickey- 145 PM CDT Sat May 1 2021 /1245 PM MDT Sat May 1 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA... * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 10 percent. * AFFECTED AREA...Most of western and 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. && $$
629 WWUS83 KBIS 020110 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 810 PM CDT Sat May 1 2021 NDZ009-017>023-025-031>037-040>048-050-051-020215- /O.EXP.KBIS.FW.W.0014.000000T0000Z-210502T0100Z/ Williams-McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Wells-Foster- Golden Valley-Billings-Stark-Morton-Burleigh-Kidder-Stutsman- Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-Logan-La Moure- McIntosh-Dickey- 810 PM CDT Sat May 1 2021 /710 PM MDT Sat May 1 2021/ ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA... Winds have diminished to 5 to 15 mph this evening and humidities will begin to climb. There is a widespread chance for light rain showers through the day tomorrow. $$
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.