Alert archive / North Dakota / Red Flag Warnings in 2021
Red Flag Warning 33, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Nov 16, 2021, 8:38 AM MST for 13 counties in North Dakota. It was in force for 8 hr. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 16, 2021, 8:38 AM MST (15:38 UTC)
- Expired
- Nov 16, 2021, 5:00 PM MST
- In force
- 8 hr
- Issued by
- NWS Bismarck, ND
Counties Adams County, ND, Billings County, ND, Bowman County, ND, Dunn County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sioux County, ND, Slope County, ND, Stark County, ND
The radar
The Bismarck radar (KBIS), 128 km from the middle of the area, began a volume at 15:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 16, 9:53 AM MST | NON-TSTM WND GST 59 | 1 Nnw Hettinger, ND | ASOS STATION KHEI HETTINGER AIRPORT. |
| Nov 16, 10:09 AM MST | NON-TSTM WND GST 62 | 1 Nnw Hettinger, ND | ASOS STATION KHEI HETTINGER AIRPORT. |
| Nov 16, 11:35 AM MST | HIGH SUST WINDS 40 | 1 Ne Beach, ND | AWOS STATION K20U BEACH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 3.6 hours before the alert went out and 292 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
- 3314 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
852 WWUS83 KBIS 161538 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 938 AM CST Tue Nov 16 2021 ...RED FLAG WARNING TODAY SOUTHWEST AND PARTS OF SOUTH CENTRAL NORTH DAKOTA... .Critical fire weather conditions are expected today over southwest and parts of south central North Dakota. West winds will increase up to 40 mph, with gusts to 60 mph, while relative humidity values fall as low as 22 percent. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ018>020-031>034-040>045-170000- /O.NEW.KBIS.FW.W.0033.211116T1538Z-211117T0000Z/ Dunn-Mercer-Oliver-Golden Valley-Billings-Stark-Morton-Slope- Hettinger-Grant-Bowman-Adams-Sioux- 938 AM CST Tue Nov 16 2021 /838 AM MST Tue Nov 16 2021/ ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHWEST AND PARTS OF 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 until 6 PM CST /5 PM MST/ this evening. * WINDS...West sustained up to 40 mph with gusts to 60 mph. * RELATIVE HUMIDITY...As low as 22 percent. * AFFECTED AREA...Southwest and parts of 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. && $$
2 follow-up statements
867 WWUS83 KBIS 162211 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 411 PM CST Tue Nov 16 2021 ...RED FLAG WARNING THIS AFTERNOON FOR SOUTHWEST AND PARTS OF SOUTH CENTRAL NORTH DAKOTA... .Critical fire weather conditions are occurring over southwest and parts of south central North Dakota this afternoon due to west winds gusting as high as 60 mph and relative humidity around 25 percent. Any fires that ignite will spread rapidly in dry fuels and become difficult to control or suppress. NDZ018>020-031>034-040>045-170000- /O.CON.KBIS.FW.W.0033.000000T0000Z-211117T0000Z/ Dunn-Mercer-Oliver-Golden Valley-Billings-Stark-Morton-Slope- Hettinger-Grant-Bowman-Adams-Sioux- 411 PM CST Tue Nov 16 2021 /311 PM MST Tue Nov 16 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHWEST AND PARTS OF SOUTH CENTRAL NORTH DAKOTA... * WINDS...West sustained up to 40 mph with gusts to 60 mph. * RELATIVE HUMIDITY...Around 25 percent. * AFFECTED AREA...Southwest and parts of south central North Dakota. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... Burn bans may be in effect. Contact local authorities for details. && $$ CJS
343 WWUS83 KBIS 162356 RFWBIS URGENT - FIRE WEATHER MESSAGE National Weather Service Bismarck ND 556 PM CST Tue Nov 16 2021 ...RED FLAG WARNING FOR SOUTHWEST AND PARTS OF SOUTH CENTRAL NORTH DAKOTA WILL BE ALLOWED TO EXPIRE... .Strong winds will continue tonight and Wednesday, but temperatures will be cooler and relative humidity values will be higher. NDZ018>020-031>034-040>045-170100- /O.EXP.KBIS.FW.W.0033.000000T0000Z-211117T0000Z/ Dunn-Mercer-Oliver-Golden Valley-Billings-Stark-Morton-Slope- Hettinger-Grant-Bowman-Adams-Sioux- 556 PM CST Tue Nov 16 2021 /456 PM MST Tue Nov 16 2021/ ...RED FLAG WARNING WILL EXPIRE AT 6 PM CST /5 PM MST/ THIS EVENING FOR SOUTHWEST AND PARTS OF SOUTH CENTRAL NORTH DAKOTA... Strong winds will continue tonight and Wednesday, but temperatures will be cooler and relative humidity values will be higher. $$ CJS
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.