Thanatos Weather
Monday, Aug 10, 2026 02:28:49

Products in the Last Seven Days
Type Phenomena Count
WarningSevere Thunderstorm781
AdvisoryAreal Flood390
WarningFlash Flood271
AdvisoryHeat122
AdvisorySmall Craft84
WarningFire Weather68
WatchSevere Thunderstorm51
AdvisoryDense Fog31
WarningTornado30
WatchAreal Flood19
AdvisoryDust Storm18
WatchFire Weather17
WarningDust Storm14
WarningGale8
WatchGale7
WarningHazardous Seas5
AdvisoryBlowing Dust5
AdvisoryLake Wind3
WatchFlood2
WatchFlash Flood1
AdvisoryWind1
Most Active Forecast Offices
Forecast Office Products
Tucson, AZ138
New York / Upton, NY64
Mount Holly / Philadelphia, NJ63
Phoenix, AZ57
Albuquerque, NM51
Chicago, IL50
El Paso, TX46
Norman, OK41
Baltimore / Washington, VA40
Wilmington, OH39
Flagstaff, AZ36
Springfield, MO34
Jackson, KY33
Northern Indiana, IN33
Jacksonville, FL33
Charleston, WV32
Morristown / Knoxville, TN31
Wakefield, VA31
Raleigh, NC30
Davenport / Quad Cities, IA29
Product Count by Day
Date Warn Watch Advis.
2026-08-1033 014
2026-08-09202 2380
2026-08-08149 1262
2026-08-07318 17101
2026-08-06179 13126
2026-08-05134 1071
2026-08-0456 879
2026-08-0393 876
2026-08-0218 724
Particularly Dangerous Situations
Product Forecast Office
Tornado Warning 0077Davenport / Quad Cities, IA
Home
Return to list
Severe Thunderstorm Warning 0208
Issued by the Sioux Falls Forecast Office

Action Issued Starts Expiration
New 2026-08-07 02:23:22 2026-08-07 02:22:00 2026-08-07 03:15:00
Continued 2026-08-07 02:29:22 2026-08-07 03:15:00
Continued 2026-08-07 02:39:22 2026-08-07 03:15:00
Cancelled 2026-08-07 02:51:23 2026-08-07 03:15:00


Action: New
Issued At: 2026-08-07 02:23:22

737 
WUUS53 KFSD 070722
SVRFSD
SDC053-070815-
/O.NEW.KFSD.SV.W.0208.260807T0722Z-260807T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
222 AM CDT Fri Aug 7 2026

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  South central Gregory County in south central South Dakota...

* Until 315 AM CDT.

* At 222 AM CDT, a severe thunderstorm was located over St. Charles,
  or 25 miles northwest of Spencer, moving southeast at 25 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Bonesteel around 230 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.

&&

LAT...LON 4321 9911 4310 9873 4300 9874 4300 9908
      4312 9918
TIME...MOT...LOC 0722Z 302DEG 20KT 4313 9907 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

IG


Action: Continued
Issued At: 2026-08-07 02:29:22

948 
WWUS53 KFSD 070728
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
228 AM CDT Fri Aug 7 2026

SDC053-070815-
/O.CON.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
228 AM CDT Fri Aug 7 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTH CENTRAL GREGORY COUNTY...

At 228 AM CDT, a severe thunderstorm was located near St. Charles, or
21 miles northwest of Spencer, moving southeast at 30 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Bonesteel around 235 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.

&&

LAT...LON 4316 9904 4301 9875 4300 9874 4300 9906
      4309 9914
TIME...MOT...LOC 0728Z 310DEG 24KT 4308 9903 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

IG


Action: Continued
Issued At: 2026-08-07 02:39:22

163 
WWUS53 KFSD 070739
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
239 AM CDT Fri Aug 7 2026

SDC053-070815-
/O.CON.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
239 AM CDT Fri Aug 7 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTHEASTERN GREGORY COUNTY...

At 238 AM CDT, a severe thunderstorm was located over Bonesteel, or
17 miles northwest of Spencer, moving southeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
southeastern Gregory County, including the following locations...
Fairfax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.

&&

LAT...LON 4301 9875 4300 9874 4300 9898 4305 9904
      4312 9896
TIME...MOT...LOC 0738Z 310DEG 24KT 4304 9896 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

IG


Action: Cancelled
Issued At: 2026-08-07 02:51:23

514 
WWUS53 KFSD 070750
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
250 AM CDT Fri Aug 7 2026

SDC053-070800-
/O.CAN.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
250 AM CDT Fri Aug 7 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GREGORY COUNTY IS
CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However, small hail and
heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.

&&

LAT...LON 4301 9875 4300 9874 4300 9898 4305 9904
      4312 9896
TIME...MOT...LOC 0748Z 302DEG 20KT 4300 9888 

$$

IG



Page Loaded at: 2026-08-10 02:28:49 -- Client Address: 216.73.216.46 -- Refresh Time: seconds