Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 10, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Apr 5, 2021, 8:13 AM CDT for 8 counties in North Dakota. It took effect at Apr 5, 2021, 1:00 PM CDT. It was in force for 7 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 5, 2021, 8:13 AM CDT (13:13 UTC)
- In effect from
- Apr 5, 2021, 1:00 PM CDT
- Expired
- Apr 5, 2021, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Bismarck, ND
Counties Dickey County, ND, Emmons County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Sioux County, ND, Stutsman County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 1.2 hours before the alert went out and 99 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
- 3152 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
274 WWUS83 KBIS 051313 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 813 AM CDT Mon Apr 5 2021 ...RED FLAG WARNING FOR SOUTH CENTRAL NORTH DAKOTA TODAY... .Critical fire weather conditions are expected for south central North Dakota late this afternoon through the early evening hours. Across south central North Dakota, expect north winds sustained to around 20 mph with gusts to 40 mph. Minimum relative humidity values will fall to as low as 20 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ036-037-045>048-050-051-060100- /O.NEW.KBIS.FW.W.0010.210405T1800Z-210406T0100Z/ Kidder-Stutsman-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 813 AM CDT Mon Apr 5 2021 /713 AM MDT Mon Apr 5 2021/ ...RED FLAG WARNING IN EFFECT FROM 1 PM CDT /NOON MDT/ THIS AFTERNOON TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH 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 1 PM CDT /noon MDT/ this afternoon to 8 PM CDT /7 PM MDT/ this evening. * WINDS...North around 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 20 percent. * AFFECTED AREA...South 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. && $$
2 follow-up statements
425 WWUS83 KBIS 051821 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 121 PM CDT Mon Apr 5 2021 ...RED FLAG WARNING FOR SOUTH CENTRAL NORTH DAKOTA TODAY... .Critical fire weather conditions are expected for south central North Dakota late this afternoon through the early evening hours. Across south central North Dakota, expect north winds sustained to around 20 mph with gusts to 40 mph. Minimum relative humidity values will fall to as low as 20 percent. Combined with dry fuels, this will result in critical fire weather conditions. NDZ036-037-045>048-050-051-060100- /O.CON.KBIS.FW.W.0010.000000T0000Z-210406T0100Z/ Kidder-Stutsman-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 121 PM CDT Mon Apr 5 2021 /1221 PM MDT Mon Apr 5 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT /7 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH CENTRAL NORTH DAKOTA... * WINDS...North 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 20 percent. * AFFECTED AREA...South central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$
951 WWUS83 KBIS 060054 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 754 PM CDT Mon Apr 5 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT/7 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. NDZ036-037-045>048-050-051-060200- /O.EXP.KBIS.FW.W.0010.000000T0000Z-210406T0100Z/ Kidder-Stutsman-Sioux-Emmons-Logan-La Moure-McIntosh-Dickey- 754 PM CDT Mon Apr 5 2021 /654 PM MDT Mon Apr 5 2021/ ...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT/7 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.