Alert archive / South Dakota / Red Flag Warnings in 2021
Red Flag Warning 16, NWS Aberdeen, SD
NWS Aberdeen, SD issued this red flag warning at Jul 2, 2021, 6:06 AM CDT for 10 counties in South Dakota. It took effect at Jul 2, 2021, 12:00 PM CDT. It was in force for 9 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
- Jul 2, 2021, 6:06 AM CDT (11:06 UTC)
- In effect from
- Jul 2, 2021, 12:00 PM CDT
- Expired
- Jul 2, 2021, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Aberdeen, SD
Counties Campbell County, SD, Corson County, SD, Dewey County, SD, Hughes County, SD, Jones County, SD, Lyman County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 166 km from the middle of the area, began a volume at 11:09 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 00:00Z, 11.1 hours before the alert went out and 154 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
- 2515 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
448 WWUS83 KABR 021106 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 606 AM CDT Fri Jul 2 2021 SDZ003-004-009-015-016-033>035-045-048-021915- /O.UPG.KABR.FW.A.0007.210702T1700Z-210703T0200Z/ /O.NEW.KABR.FW.W.0016.210702T1700Z-210703T0200Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 606 AM CDT Fri Jul 2 2021 /506 AM MDT Fri Jul 2 2021/ ...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR CENTRAL AND NORTH CENTRAL SOUTH DAKOTA... The National Weather Service in Aberdeen has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon CDT /11 AM MDT/ today to 9 PM CDT /8 PM MDT/ this evening. The Fire Weather Watch is no longer in effect. * 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 15 percent. * IMPACTS...These conditions are supportive of rapid fire growth. 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. && $$ Connelly
2 follow-up statements
265 WWUS83 KABR 021803 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 103 PM CDT Fri Jul 2 2021 SDZ003-004-009-015-016-033>035-045-048-030200- /O.CON.KABR.FW.W.0016.000000T0000Z-210703T0200Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 103 PM CDT Fri Jul 2 2021 /1203 PM MDT Fri Jul 2 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR CENTRAL AND NORTH CENTRAL SOUTH DAKOTA... * AFFECTED AREA...In South Dakota, Corson, Campbell, Walworth, Dewey, Potter, Stanley, Sully, Hughes, Jones and Lyman. * WINDS...Southeast 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...These conditions are supportive of rapid fire growth. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Dorn
220 WWUS83 KABR 030158 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 858 PM CDT Fri Jul 2 2021 SDZ003-004-009-015-016-033>035-045-048-030300- /O.EXP.KABR.FW.W.0016.000000T0000Z-210703T0200Z/ Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 858 PM CDT Fri Jul 2 2021 /758 PM MDT Fri Jul 2 2021/ ...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR CENTRAL AND NORTH CENTRAL SOUTH DAKOTA... Relative humidity has risen this evening as temperatures begin to fall. Breezy conditions on Saturday may lead to increased fire danger again. $$
Nearby
Red Flag Warnings in South 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.