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Severe Thunderstorm Warning


Severe Weather Statement
National Weather Service Sioux Falls SD
1208 PM CDT MON AUG 21 2017

SDC003-023-035-043-053-067-211745-
/O.CON.KFSD.SV.W.0230.000000T0000Z-170821T1745Z/
Davison SD-Aurora SD-Charles Mix SD-Gregory SD-Douglas SD-
Hutchinson SD-
1208 PM CDT MON AUG 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR SOUTHERN DAVISON...SOUTHERN AURORA...EASTERN CHARLES MIX...
SOUTHEASTERN GREGORY...DOUGLAS AND WESTERN HUTCHINSON COUNTIES...

At 1207 PM CDT, severe thunderstorms were located along a line
extending from near Stickney to 6 miles west of Armour to 10 miles
east of Bonesteel, moving east at 40 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

SOURCE...Public. At 12:05 PM CDT, golf ball size hail was reported
         2 miles south of Aurora Center.

IMPACT...People and animals outdoors will be injured. Expect hail
         damage to roofs, siding, windows, and vehicles. Expect
         considerable tree damage. Wind damage is also likely to
         mobile homes, roofs, and outbuildings.

These severe storms will be near...
  Armour around 1215 PM CDT.
  Pickstown around 1225 PM CDT.
  Delmont around 1230 PM CDT.
  Marty around 1235 PM CDT.
  Dimock around 1240 PM CDT.
  Parkston, Tripp and Dante around 1245 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4339 9865 4359 9870 4360 9814 4352 9797
      4350 9796 4349 9789 4322 9795 4317 9801
      4317 9808 4308 9811 4292 9828 4299 9850
      4300 9850 4310 9893
TIME...MOT...LOC 1707Z 292DEG 36KT 4351 9845 4333 9847 4309 9875

HAIL...2.00IN
WIND...70MPH

$$

Schumacher

Severe Weather Statement
National Weather Service Sioux Falls SD
1152 AM CDT MON AUG 21 2017

SDC003-015-023-043-053-211715-
/O.CON.KFSD.SV.W.0229.000000T0000Z-170821T1715Z/
Aurora SD-Charles Mix SD-Gregory SD-Douglas SD-Brule SD-
1152 AM CDT MON AUG 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT
FOR SOUTHWESTERN AURORA...NORTHWESTERN CHARLES MIX...SOUTHERN
GREGORY...NORTHERN DOUGLAS AND SOUTHEASTERN BRULE COUNTIES...

At 1151 AM CDT, severe thunderstorms were located along a line
extending from near Aurora Center to 7 miles north of Bonesteel,
moving east at 40 mph.

These are very dangerous storms.

HAZARD...Three inch hail and 70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be severely injured.
         Expect shattered windows, extensive damage to roofs,
         siding, and vehicles.

These severe storms will be near...
  New Holland and Aurora Center around 1200 PM CDT.
  Harrison around 1205 PM CDT.
  Geddes around 1210 PM CDT.
  Corsica around 1215 PM CDT.

Other locations impacted by these severe thunderstorms include
Fairfax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

These are dangerous storms. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4344 9822 4300 9871 4300 9902 4315 9931
      4362 9891
TIME...MOT...LOC 1651Z 280DEG 35KT 4350 9868 4318 9900

HAIL...3.00IN
WIND...70MPH

$$

Schumacher


Flash Flood Warning


Flash Flood Warning
SDC065-085-117-211815-
/O.NEW.KABR.FF.W.0002.170821T1511Z-170821T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Aberdeen SD
1011 AM CDT MON AUG 21 2017

The National Weather Service in Aberdeen has issued a

* Flash Flood Warning for...
  Southeastern Stanley County in central South Dakota...
  Central Hughes County in central South Dakota...
  North central Lyman County in central South Dakota...

* Until 115 PM CDT/1215 PM MDT/

* At 1009 AM CDT/909 AM MDT/, Doppler radar indicated heavy rain
  across the warned area. One to 2 inches of rain have fallen. Flash
  flooding is already occurring.

* Some locations that will experience flooding include...
  Pierre, Fort Pierre, Joe Creek Rec Area, Cedar Creek Rec Area and
  Lake Sharpe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4419 9976 4409 9982 4432 10042 4442 10037

$$

Mohr


Severe Weather Statement


Severe Weather Statement
National Weather Service Sioux Falls SD
1208 PM CDT MON AUG 21 2017

SDC003-023-035-043-053-067-211745-
/O.CON.KFSD.SV.W.0230.000000T0000Z-170821T1745Z/
Davison SD-Aurora SD-Charles Mix SD-Gregory SD-Douglas SD-
Hutchinson SD-
1208 PM CDT MON AUG 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR SOUTHERN DAVISON...SOUTHERN AURORA...EASTERN CHARLES MIX...
SOUTHEASTERN GREGORY...DOUGLAS AND WESTERN HUTCHINSON COUNTIES...

At 1207 PM CDT, severe thunderstorms were located along a line
extending from near Stickney to 6 miles west of Armour to 10 miles
east of Bonesteel, moving east at 40 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

SOURCE...Public. At 12:05 PM CDT, golf ball size hail was reported
         2 miles south of Aurora Center.

IMPACT...People and animals outdoors will be injured. Expect hail
         damage to roofs, siding, windows, and vehicles. Expect
         considerable tree damage. Wind damage is also likely to
         mobile homes, roofs, and outbuildings.

These severe storms will be near...
  Armour around 1215 PM CDT.
  Pickstown around 1225 PM CDT.
  Delmont around 1230 PM CDT.
  Marty around 1235 PM CDT.
  Dimock around 1240 PM CDT.
  Parkston, Tripp and Dante around 1245 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4339 9865 4359 9870 4360 9814 4352 9797
      4350 9796 4349 9789 4322 9795 4317 9801
      4317 9808 4308 9811 4292 9828 4299 9850
      4300 9850 4310 9893
TIME...MOT...LOC 1707Z 292DEG 36KT 4351 9845 4333 9847 4309 9875

HAIL...2.00IN
WIND...70MPH

$$

Schumacher

Severe Weather Statement
National Weather Service Sioux Falls SD
1152 AM CDT MON AUG 21 2017

SDC003-015-023-043-053-211715-
/O.CON.KFSD.SV.W.0229.000000T0000Z-170821T1715Z/
Aurora SD-Charles Mix SD-Gregory SD-Douglas SD-Brule SD-
1152 AM CDT MON AUG 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT
FOR SOUTHWESTERN AURORA...NORTHWESTERN CHARLES MIX...SOUTHERN
GREGORY...NORTHERN DOUGLAS AND SOUTHEASTERN BRULE COUNTIES...

At 1151 AM CDT, severe thunderstorms were located along a line
extending from near Aurora Center to 7 miles north of Bonesteel,
moving east at 40 mph.

These are very dangerous storms.

HAZARD...Three inch hail and 70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be severely injured.
         Expect shattered windows, extensive damage to roofs,
         siding, and vehicles.

These severe storms will be near...
  New Holland and Aurora Center around 1200 PM CDT.
  Harrison around 1205 PM CDT.
  Geddes around 1210 PM CDT.
  Corsica around 1215 PM CDT.

Other locations impacted by these severe thunderstorms include
Fairfax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

These are dangerous storms. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4344 9822 4300 9871 4300 9902 4315 9931
      4362 9891
TIME...MOT...LOC 1651Z 280DEG 35KT 4350 9868 4318 9900

HAIL...3.00IN
WIND...70MPH

$$

Schumacher


Severe Thunderstorm Watch


WATCH COUNTY NOTIFICATION FOR WATCHES 459/460
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1134 AM CDT MON AUG 21 2017

SDC003-015-023-035-043-053-073-111-211900-
/O.CON.KFSD.SV.A.0459.000000T0000Z-170821T1900Z/

SEVERE THUNDERSTORM WATCH 459 REMAINS VALID UNTIL 2 PM CDT THIS
AFTERNOON FOR THE FOLLOWING AREAS

IN SOUTH DAKOTA THIS WATCH INCLUDES 8 COUNTIES

IN CENTRAL SOUTH DAKOTA

JERAULD

IN EAST CENTRAL SOUTH DAKOTA

SANBORN

IN SOUTH CENTRAL SOUTH DAKOTA

AURORA                BRULE                 CHARLES MIX
DOUGLAS               GREGORY

IN SOUTHEAST SOUTH DAKOTA

DAVISON

$$

WATCH COUNTY NOTIFICATION FOR WATCH 459
NATIONAL WEATHER SERVICE RAPID CITY SD
1033 AM MDT MON AUG 21 2017

SDC123-211900-
/O.CON.KUNR.SV.A.0459.000000T0000Z-170821T1900Z/

SEVERE THUNDERSTORM WATCH 459 REMAINS VALID UNTIL 2 PM CDT THIS
AFTERNOON FOR THE FOLLOWING AREAS

IN SOUTH DAKOTA THIS WATCH INCLUDES 1 COUNTY

IN SOUTH CENTRAL SOUTH DAKOTA

TRIPP

THIS INCLUDES THE CITIES OF CLEARFIELD, IDEAL, AND WINNER.

$$

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 460
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CDT MON AUG 21 2017

SEVERE THUNDERSTORM WATCH 460 IS IN EFFECT UNTIL 700 PM CDT
FOR THE FOLLOWING LOCATIONS

MNC033-063-101-105-117-133-220000-
/O.NEW.KWNS.SV.A.0460.170821T1635Z-170822T0000Z/

MN
.    MINNESOTA COUNTIES INCLUDED ARE

COTTONWOOD           JACKSON             MURRAY
NOBLES               PIPESTONE           ROCK
$$

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 460
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CDT MON AUG 21 2017

SEVERE THUNDERSTORM WATCH 460 IS IN EFFECT UNTIL 700 PM CDT
FOR THE FOLLOWING LOCATIONS

IAC021-035-041-059-093-119-133-141-143-149-167-193-220000-
/O.NEW.KWNS.SV.A.0460.170821T1635Z-170822T0000Z/

IA
.    IOWA COUNTIES INCLUDED ARE

BUENA VISTA          CHEROKEE            CLAY
DICKINSON            IDA                 LYON
MONONA               O`BRIEN             OSCEOLA
PLYMOUTH             SIOUX               WOODBURY
$$

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 460
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CDT MON AUG 21 2017

SEVERE THUNDERSTORM WATCH 460 IS IN EFFECT UNTIL 700 PM CDT
FOR THE FOLLOWING LOCATIONS

SDC009-027-061-067-079-083-087-097-099-101-125-127-135-220000-
/O.NEW.KWNS.SV.A.0460.170821T1635Z-170822T0000Z/

SD
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BON HOMME            CLAY                HANSON
HUTCHINSON           LAKE                LINCOLN
MCCOOK               MINER               MINNEHAHA
MOODY                TURNER              UNION
YANKTON
$$


ATTN...WFO...FSD...OAX...LBF...


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Grand Forks ND
611 AM CDT Mon Aug 21 2017

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-221115-
West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods-
West Marshall-East Marshall-North Beltrami-Pennington-Red Lake-
East Polk-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier-
Pembina-Benson-Ramsey-Eastern Walsh County-Eddy-Nelson-
Grand Forks-Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-
Richland-Western Walsh County-
611 AM CDT Mon Aug 21 2017

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected this afternoon and evening
over parts of eastern ND and in the southern Red River Valley
south of I-94. Severe weather is not expected at this time.

Also a cold front will move southeast out of Canada this
afternoon and evening. Winds may gust up to 35 mph with the cold
frontal passage.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$

JH

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
529 AM CDT Mon Aug 21 2017

IAZ001>003-012>014-020>022-031-032-MNZ089-090-NEZ013-014-SDZ067-
070-071-221030-
Lyon IA-Osceola-Dickinson-Sioux-O`Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Nobles-Jackson-Dixon-Dakota-Lincoln SD-
Clay SD-Union-
529 AM CDT Mon Aug 21 2017

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, southwest Minnesota, northeast Nebraska, and
southeast South Dakota.

.DAY ONE...Today and Tonight
After early day thunderstorms with areas of diminish, additional
storms are likely to develop and spread into the area during the
mid to late afternoon. Storms could produce hail up to 2 inches in
diameter and winds up to 70 mph. An isolated tornado is also
possible. Heavy rain and flash flooding will also be a concern
later afternoon into early evening, especially for areas of
northwest Iowa south of Highway 3 which received heavy rainfall on
Sunday night.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely between 3 pm and 9 pm.

$$

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
529 AM CDT Mon Aug 21 2017

MNZ071-072-080-081-097-098-SDZ040-050-054>056-058>066-068-069-
221030-
Lincoln MN-Lyon MN-Murray-Cottonwood-Pipestone-Rock-Brookings-
Gregory-Miner-Lake-Moody-Aurora-Davison-Hanson-McCook-Minnehaha-
Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-
529 AM CDT Mon Aug 21 2017

This Hazardous Weather Outlook is for portions of southwest
Minnesota, east central South Dakota, south central South Dakota,
and southeast South Dakota.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected to develop across the area
during the early to mid afternoon, moving out of the area by early
evening. Severe storms are possible, with hail to golf ball size
and winds to 65 mph the primary threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible between 1 pm and 7 pm.

$$

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
529 AM CDT Mon Aug 21 2017

SDZ038-039-052-053-057-221030-
Beadle-Kingsbury-Jerauld-Sanborn-Brule-
529 AM CDT Mon Aug 21 2017

This Hazardous Weather Outlook is for portions of central South
Dakota, east central South Dakota, and south central South
Dakota.

.DAY ONE...Today and Tonight

Scattered thunderstorms will be possible during the midday and
early afternoon. An isolated storm will be capable of hail to half
dollar size and winds to 60 mph.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible between 11 am and 4 pm.

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
458 AM CDT Mon Aug 21 2017

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-221000-
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-
458 AM CDT Mon Aug 21 2017 /358 AM MDT Mon Aug 21 2017/

This Hazardous Weather Outlook is for portions of west central
Minnesota, central South Dakota, north central South Dakota, and
northeast South Dakota.

.DAY ONE...Today and Tonight

An area of showers and thunderstorms early this morning over
central South Dakota with push east through late morning. A few
storms could be strong to severe, with large hail possible.
Otherwise, additional thunderstorm development is possible today,
but the overall areal coverage is expected to diminish, with only
a low threat for severe storms.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$
TMT

Hazardous Weather Outlook
National Weather Service Rapid City SD
309 AM MDT Mon Aug 21 2017

SDZ002-013-014-031-032-042>044-046-047-049-073-221300-
Perkins-Northern Meade Co Plains-Ziebach-Pennington Co Plains-
Haakon-Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Southern Meade Co Plains-
309 AM MDT Mon Aug 21 2017 /409 AM CDT Mon Aug 21 2017/

This Hazardous weather outlook is for portions of south central
South Dakota...and western South Dakota.

.DAY ONE...TODAY AND TONIGHT

Scattered thunderstorms will move across the area today, mainly
this morning. Severe thunderstorms are not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
359 AM CDT Mon Aug 21 2017

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
220900-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
359 AM CDT Mon Aug 21 2017

This Hazardous Weather Outlook is for portions of central and
southern Minnesota...and west central Wisconsin.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected today into this evening across
central and south central Minnesota and west central Wisconsin.
A few of these storms could produce severe weather, primarily
over southern Minnesota. Damaging winds, large hail and heavy
rainfall are the primary threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms are expected periodically from Friday night through
Sunday. Although predictability regarding timing and location is
low at this time, severe weather appears possible over the
weekend.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will may be needed over southern
Minnesota today into this evening.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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