Alert archive / South Dakota / Red Flag Warnings in 2021
Red Flag Warning 6, NWS Aberdeen, SD
NWS Aberdeen, SD issued this red flag warning at Mar 31, 2021, 2:48 PM CDT for 26 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It took effect at Apr 1, 2021, 10:00 AM CDT. It was in force for 12 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
- Mar 31, 2021, 2:48 PM CDT (19:48 UTC)
- In effect from
- Apr 1, 2021, 10:00 AM CDT
- Expired
- Apr 1, 2021, 10:00 PM CDT
- In force
- 12 hr
- Issued by
- NWS Aberdeen, SD
All 28 counties
Big Stone County, MN, Traverse County, MN, Brown County, SD, Buffalo County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Corson County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 56 km from the middle of the area, began a volume at 19:48 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
Aberdeen, SD (KABR), launched 12:00Z, 7.8 hours before the alert went out and 34 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
- 1046 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
329 WWUS83 KABR 311948 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 248 PM CDT Wed Mar 31 2021 SDZ003>011-015-016-033>035-045-048-010400- /O.UPG.KABR.FW.A.0003.210401T1500Z-210402T0300Z/ /O.NEW.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Corson-Campbell-McPherson-Brown-Marshall-Roberts-Walworth-Edmunds- Day-Dewey-Potter-Stanley-Sully-Hughes-Jones-Lyman- 248 PM CDT Wed Mar 31 2021 /148 PM MDT Wed Mar 31 2021/ ...RED FLAG WARNING IN EFFECT FROM 10 AM CDT /9 AM MDT/ TO 10 PM CDT /9 PM MDT/ THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... The National Weather Service in Aberdeen has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM CDT /9 AM MDT/ to 10 PM CDT /9 PM MDT/ Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Brown, Marshall, Roberts, Walworth, Edmunds, Day, Dewey, Potter, Stanley, Sully, Hughes, Jones and Lyman. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ MNZ039-046-SDZ017>023-036-037-051-010400- /O.NEW.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Traverse-Big Stone-Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel- Hyde-Hand-Buffalo- 248 PM CDT Wed Mar 31 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 10 PM CDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEASTERN SD AND WEST CENTRAL MN... The National Weather Service in Aberdeen has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 10 PM CDT Thursday. * AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Faulk, Spink, Clark, Codington, Grant, Hamlin, Deuel, Hyde, Hand and Buffalo. * WINDS...South 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 22 percent. * IMPACTS... PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
5 follow-up statements
170 WWUS83 KABR 312014 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 314 PM CDT Wed Mar 31 2021 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-010415- /O.CON.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall- Roberts-Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark- Codington-Grant-Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones- Lyman-Buffalo- 314 PM CDT Wed Mar 31 2021 /214 PM MDT Wed Mar 31 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM CDT /9 AM MDT/ TO 10 PM CDT /9 PM MDT/ THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Corson, Campbell, McPherson, Brown, Marshall, Roberts, Walworth, Edmunds, Day, Dewey, Potter, Faulk, Spink, Clark, Codington, Grant, Hamlin, Deuel, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
990 WWUS83 KABR 010334 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 1034 PM CDT Wed Mar 31 2021 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-011145- /O.CON.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall- Roberts-Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark- Codington-Grant-Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones- Lyman-Buffalo- 1034 PM CDT Wed Mar 31 2021 /934 PM MDT Wed Mar 31 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM CDT /9 AM MDT/ TO 10 PM CDT /9 PM MDT/ THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Corson, Campbell, McPherson, Brown, Marshall, Roberts, Walworth, Edmunds, Day, Dewey, Potter, Faulk, Spink, Clark, Codington, Grant, Hamlin, Deuel, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Parkin
675 WWUS83 KABR 010807 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 307 AM CDT Thu Apr 1 2021 SDZ003-004-009-015-016-033>035-045-048-012000- /O.CON.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 307 AM CDT Thu Apr 1 2021 /207 AM MDT Thu Apr 1 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM CDT /9 AM MDT/ THIS MORNING TO 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In South Dakota, Corson, Campbell, Walworth, Dewey, Potter, Stanley, Sully, Hughes, Jones and Lyman. * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ MNZ039-046-SDZ005>008-010-011-017>023-036-037-051-012000- /O.CON.KABR.FW.W.0006.210401T1500Z-210402T0300Z/ Traverse-Big Stone-McPherson-Brown-Marshall-Roberts-Edmunds-Day- Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-Hyde-Hand-Buffalo- 307 AM CDT Thu Apr 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, McPherson, Brown, Marshall, Roberts, Edmunds, Day, Faulk, Spink, Clark, Codington, Grant, Hamlin, Deuel, Hyde, Hand and Buffalo. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 21 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ KF
256 WWUS83 KABR 011933 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 233 PM CDT Thu Apr 1 2021 SDZ003-004-009-015-016-033>035-045-048-020300- /O.CON.KABR.FW.W.0006.000000T0000Z-210402T0300Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 233 PM CDT Thu Apr 1 2021 /133 PM MDT Thu Apr 1 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In South Dakota, Corson, Campbell, Walworth, Dewey, Potter, Stanley, Sully, Hughes, Jones and Lyman. * WINDS...South 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ MNZ039-046-SDZ005>008-010-011-017>023-036-037-051-020300- /O.CON.KABR.FW.W.0006.000000T0000Z-210402T0300Z/ Traverse-Big Stone-McPherson-Brown-Marshall-Roberts-Edmunds-Day- Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-Hyde-Hand-Buffalo- 233 PM CDT Thu Apr 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... * AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, McPherson, Brown, Marshall, Roberts, Edmunds, Day, Faulk, Spink, Clark, Codington, Grant, Hamlin, Deuel, Hyde, Hand and Buffalo. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 19 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. Any fires will spread rapidly and become difficult to control and suppress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
280 WWUS83 KABR 020259 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 959 PM CDT Thu Apr 1 2021 SDZ003-004-009-015-016-033>035-045-048-020400- /O.EXP.KABR.FW.W.0006.000000T0000Z-210402T0300Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 959 PM CDT Thu Apr 1 2021 /859 PM MDT Thu Apr 1 2021/ ...RED FLAG WARNING WILL EXPIRE AT 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... Temperatures have begun to fall and relative humidities have begun to rise, therefore will allow the Red Flag Warning to expire. $$ MNZ039-046-SDZ005>008-010-011-017>023-036-037-051-020400- /O.EXP.KABR.FW.W.0006.000000T0000Z-210402T0300Z/ Traverse-Big Stone-McPherson-Brown-Marshall-Roberts-Edmunds-Day- Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-Hyde-Hand-Buffalo- 959 PM CDT Thu Apr 1 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH CENTRAL, CENTRAL, AND NORTHEASTERN SD... Temperatures have begun to fall and relative humidities have begun to rise, therefore will allow the Red Flag Warning to expire. $$ Parkin
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 3:02 AM CDT | Fire Weather Watch | ABR | Brown, Campbell, Corson, Day, Dewey, Edmunds and 10 more | 12 hr |
Nearby
Red Flag Warnings in South Dakota, 2021Red Flag Warnings in Minnesota, 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.