weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Flash Flood Warning


FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
247 AM CDT THU AUG 21 2014

MNC011-SDC109-211230-
/O.CON.KABR.FF.W.0029.000000T0000Z-140821T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BIG STONE MN-ROBERTS SD-
247 AM CDT THU AUG 21 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ROBERTS AND
CENTRAL BIG STONE COUNTIES UNTIL 730 AM CDT...

AT 243 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO
INDICATE THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO THE
WARNED AREA. RADAR ESTIMATES CURRENTLY RANGE BETWEEN 3 AND 5
INCHES...WITH AN ADDITIONAL HALF TO 1 INCH OF RAINFALL EXPECTED WITH
THE NEXT WAVE OF STORMS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CLINTON...JOHNSON AND LAGOONA BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4532 9647 4533 9665 4542 9672 4559 9631
      4559 9625 4558 9623 4542 9623

$$
CONNELLY

FLASH FLOOD WARNING
SDC041-211330-
/O.NEW.KABR.FF.W.0028.140821T0426Z-140821T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1026 PM MDT WED AUG 20 2014

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL DEWEY COUNTY IN NORTH CENTRAL SOUTH DAKOTA...

* UNTIL 730 AM MDT THURSDAY

* AT 1023 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. RADAR RAINFALL ESTIMATES ON THE RADAR WERE IN
  THE THREE TO FIVE INCH RANGE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  LAPLANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
ABERDEEN.

&&

LAT...LON 4534 10038 4518 10028 4510 10078 4529 10079

$$
PARKIN


Flood Warning


FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
201 AM CDT THU AUG 21 2014

MNC149-151-211300-
/O.NEW.KMPX.FA.W.0012.140821T0701Z-140821T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEVENS MN-SWIFT MN-
201 AM CDT THU AUG 21 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLOOD WARNING FOR...
  NORTHWESTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
  STEVENS COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 800 AM CDT

* AT 159 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. RADAR ESTIMATED 2-3 INCHES HAD ALREADY FALLEN...WITH
  ANOTHER 2-3 INCHES POSSIBLE OVER THE NEXT COUPLE OF HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING TO OCCUR.
  SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...MORRIS...
  LAKE HATTIE AND LAKE OLIVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.
DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS... OR LOW WATER
CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL
ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 4575 9626 4577 9625 4577 9576 4539 9574
      4522 9611 4525 9613 4540 9612 4540 9624
      4541 9626

$$

JRB


Severe Thunderstorm Watch


SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 470
NWS STORM PREDICTION CENTER NORMAN OK
105 AM CDT THU AUG 21 2014

SEVERE THUNDERSTORM WATCH 470 IS IN EFFECT UNTIL 700 AM CDT
FOR THE FOLLOWING LOCATIONS

MNC013-015-019-023-041-067-073-079-085-093-103-121-127-129-141-
143-145-149-151-161-165-171-173-211200-
/O.NEW.KWNS.SV.A.0470.140821T0605Z-140821T1200Z/

MN
.    MINNESOTA COUNTIES INCLUDED ARE

BLUE EARTH           BROWN               CARVER
CHIPPEWA             DOUGLAS             KANDIYOHI
LAC QUI PARLE        LE SUEUR            MCLEOD
MEEKER               NICOLLET            POPE
REDWOOD              RENVILLE            SHERBURNE
SIBLEY               STEARNS             STEVENS
SWIFT                WASECA              WATONWAN
WRIGHT               YELLOW MEDICINE
$$


ATTN...WFO...MPX...


Flash Flood Watch


FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
233 AM CDT THU AUG 21 2014

...VERY HEAVY RAIN CURRENTLY DEVELOPING WHICH WILL LEAD TO THE
POTENTIAL FOR FLASH FLOODING THROUGH MID MORNING...

.NUMEROUS THUNDERSTORMS HAVE DEVELOPED ALONG A WARM FRONT
EXTENDING FROM EASTERN SOUTH DAKOTA SOUTHEAST INTO SOUTHWEST
MINNESOTA. WITH TIME...THESE THUNDERSTORMS WILL ALIGN THEMSELVES IN A
WEST NORTHEAST TO EAST SOUTHEAST EARLY THIS MORNING AND WILL TRAIN
OVER THE SAME AREAS. VERY HIGH MOISTURE CONTENT IN THE ATMOSPHERE
WILL ALLOW FOR VERY EFFICIENT HEAVY RAIN PRODUCING STORMS WITH
RAINFALL RATES OF 2 INCHES PER HOUR POSSIBLE. THE HEAVIEST RAIN IS
CURRENTLY EXPECTED TO FALL ALONG AND JUST NORTH OF THE MINNESOTA
RIVER AND SOUTH OF I-94...TO AS FAR EAST AS RED WING MINNESOTA.
WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED...WITH
LOCALIZED TOTALS OF 3 TO 6 INCHES POSSIBLE. THIS MUCH RAIN IN A
SHORT AMOUNT OF TIME WILL LEAD TO A HEIGHTENED THREAT FOR FLASH
FLOODING THIS MORNING.

MNZ041-047>049-051-055>063-065>070-075>078-083>085-WIZ023-024-
211500-
/O.NEW.KMPX.FF.A.0007.140821T0733Z-140821T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS-STEVENS-POPE-STEARNS-SHERBURNE-SWIFT-CHIPPEWA-KANDIYOHI-
MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-RENVILLE-MCLEOD-
SIBLEY-CARVER-SCOTT-DAKOTA-NICOLLET-LE SUEUR-RICE-GOODHUE-
BLUE EARTH-WASECA-STEELE-ST. CROIX-PIERCE-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
ST. CLOUD...ELK RIVER...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL...
STILLWATER...OLIVIA...HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...
BURNSVILLE...ST. PETER...LE SUEUR...FARIBAULT...RED WING...
MANKATO...WASECA...OWATONNA...HUDSON...NEW RICHMOND...
RIVER FALLS...PRESCOTT
233 AM CDT THU AUG 21 2014

...FLASH FLOOD WATCH IN EFFECT UNTIL 10 AM CDT THIS MORNING...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A

* FLASH FLOOD WATCH FOR PORTIONS OF MINNESOTA AND WEST CENTRAL
  WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN MINNESOTA...
  ANOKA...BLUE EARTH...CARVER...CHIPPEWA...DAKOTA...DOUGLAS...
  GOODHUE...HENNEPIN...KANDIYOHI...LE SUEUR...MCLEOD...MEEKER...
  NICOLLET...POPE...RAMSEY...RENVILLE...RICE...SCOTT...
  SHERBURNE...SIBLEY...STEARNS...STEELE...STEVENS...SWIFT...
  WASECA...WASHINGTON AND WRIGHT. IN WEST CENTRAL WISCONSIN...
  PIERCE AND ST. CROIX.

* UNTIL 10 AM CDT THIS MORNING.

* NUMEROUS THUNDERSTORMS PRODUCING TORRENTIAL RAIN WILL TRACK OVER
  SOME OF THE SAME AREAS REPEATEDLY EARLY THIS MORNING. WIDESPREAD
  RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE FORECAST...WITH AS MUCH AS
  3 TO 6 INCHES FALLING IN LOCALIZED AREAS.

* DRIVING AT NIGHT DURING FLASH FLOOD SITUATION IS EXTREMELY
  DANGEROUS AS DRIVERS MAY UNDERESTIMATE THE DEPTH OF THE WATER
  OR MAY COME ACROSS AREAS PRONE TO WASHOUTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

BORGHOFF


Flood Advisory


FLOOD ADVISORY
NATIONAL WEATHER SERVICE BISMARCK ND
321 AM CDT THU AUG 21 2014

NDC029-047-051-210836-
/O.EXP.KBIS.FA.Y.0045.000000T0000Z-140821T0830Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EMMONS ND-LOGAN ND-MCINTOSH ND-
321 AM CDT THU AUG 21 2014

...THE FLOOD ADVISORY THAT WAS IN EFFECT FOR MCINTOSH...LOGAN AND
EMMONS COUNTIES WILL BE ALLOWED TO EXPIRE AT 330 AM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE ADVISORY AREA.
STREAMS AND CREEKS IN THE ADVISORY AREA HAVE RECEDED...WERE BEGINNING
TO RECEDE...OR HAVE BEEN SIGNED AND BARRICADED. IF ONGOING FLOODING
HAS BEEN OBSERVED WITHOUT PROPER SIGNING OR BARRICADES...PLEASE
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4594 10047 4662 10042 4664 9919 4663 9904
      4629 9904 4628 9900 4593 9901

$$

TM


Special Weather Statement


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
307 AM CDT THU AUG 21 2014

MNZ048-049-055>057-210930-
CHIPPEWA-KANDIYOHI-POPE-STEARNS-SWIFT-
307 AM CDT THU AUG 21 2014

...HEAVY RAIN CONTINUING OVER CHIPPEWA...KANDIYOHI...POPE...STEARNS
AND SWIFT COUNTIES THROUGH 430 AM CDT...

AT 303 AM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES WEST OF BENSON TO
15 MILES SOUTHWEST OF MONSON LAKE STATE PARK TO 11 MILES NORTHWEST OF
OLIVIA. THESE STORMS WERE MOVING NORTHEAST AT 20 MPH.

HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  DANVERS.
  BENSON.
  WILLMAR
  RAYMOND.
  MURDOCK.
  KERKHOVEN.
  LAKE EMILY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RAINFALL AMOUNTS 2 TO 4 ARE POSSIBLE FROM THE THUNDERSTORM. THIS MAY
RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING OF WATER ON AREA
ROADWAYS.

&&

LAT...LON 4539 9575 4576 9575 4544 9477 4489 9476
      4489 9547 4475 9549 4477 9552 4479 9550
      4494 9575 4495 9581 4502 9587 4516 9605
      4517 9610 4521 9611
TIME...MOT...LOC 0806Z 243DEG 19KT 4535 9575 4513 9541
          4485 9518

$$

JRB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1100 PM CDT WED AUG 20 2014

NDZ001>005-009>013-017>022-031>035-040>046-210930-
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-
GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-SLOPE-HETTINGER-
GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-
INCLUDING THE CITIES OF...CROSBY...BOWBELLS...MOHALL...
BOTTINEAU...ROLLA...WILLISTON...NEW TOWN...MINOT...TOWNER...
RUGBY...WATFORD CITY...KILLDEER...BEULAH...HAZEN...CENTER...
GARRISON...MCCLUSKY...BEACH...MEDORA...DICKINSON...MANDAN...
BISMARCK...MARMARTH...MOTT...ELGIN...BOWMAN...HETTINGER...
FORT YATES...LINTON
1100 PM CDT WED AUG 20 2014 /1000 PM MDT WED AUG 20 2014/

...MULTIPLE ROUNDS OF HEAVY RAIN POSSIBLE THROUGH THE WEEKEND...

MULTIPLE ROUNDS OF THUNDERSTORMS WITH HEAVY RAIN ARE FORECAST
THROUGH SUNDAY.

AFTER THE RAIN WEDNESDAY NIGHT...THE NEXT CHANCE FOR RAIN WILL BE
LATER THURSDAY INTO FRIDAY...THEN AGAIN OVER THE WEEKEND.

THE HEAVY RAINS COULD LEAD TO OVERLAND FLOODING...AND FLOODING OF
CREEKS...STREAMS...AND RIVERS. THIS WOULD BE ESPECIALLY TRUE IF
THE RAIN FALLS IN THE SAME AREAS THAT RECEIVED SIGNIFICANT RAIN
LAST WEEKEND. IT WOULD ALSO BE TRUE IN AREAS THAT ARE NOT AS
WET...BUT GET SIGNIFICANT RAINS FROM NOW THROUGH THE WEEKEND.

STAY UP TO DATE AT WWW.WEATHER.GOV/BIS AND FOLLOW THE NATIONAL
WEATHER SERVICE ON SOCIAL MEDIA. STAY WEATHER READY.

$$

JP MARTIN


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
1123 PM CDT WED AUG 20 2014

NDZ001>003-005-009>013-017>023-025-031>037-040>048-050-051-220430-
DIVIDE-BURKE-RENVILLE-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-MCHENRY-
PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS-FOSTER-
GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-STUTSMAN-
SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-LA MOURE-
MCINTOSH-DICKEY-
1123 PM CDT WED AUG 20 2014 /1023 PM MDT WED AUG 20 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH
DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA.

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL DECREASE IN COVERAGE TONIGHT FROM WEST TO EAST.
ADDITIONAL HEAVY RAIN MAY CAUSE SMALL STREAMS AND COULEES FLOOD
DUE TO EXCESSIVE RUNOFF.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE WILL BE A CHANCE OF THUNDERSTORMS THURSDAY THROUGH TUESDAY.
HEAVY RAIN WILL BE POSSIBLE THURSDAY NIGHT THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

REPORT SEVERE WEATHER TO NWS BISMARCK AT 701-223-4582...OR VIA
SOCIAL MEDIA.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT WEATHER.GOV/BIS

$$

SCHECK

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
751 PM CDT WED AUG 20 2014

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
220100-
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-
751 PM CDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN MINNESOTA... AND WEST CENTRAL WISCONSIN.

.DAY ONE...TONIGHT

SHOWERS AND THUNDERSTORMS WILL OCCUR OVERNIGHT WITH SOME STRONG
OR SEVERE STORMS...PARTICULARLY OVER SOUTHWESTERN MINNESOTA. ALL
STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND LOCALIZED FLASH
FLOODING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

HEAT INDICES WILL REACH 95 TO 100 DEGREES OVER PARTS OF CENTRAL
AND SOUTH CENTRAL MINNESOTA ON THURSDAY AFTERNOON...GENERALLY
FROM THE TWIN CITIES SOUTH TO THE IOWA BORDER AND WEST TO THE
SOUTH DAKOTA BORDER.

PERIODS OF THUNDERSTORMS ARE EXPECTED FROM THURSDAY THROUGH
TUESDAY...WITH THE HIGHEST CHANCES THURSDAY MORNING ACROSS EAST
CENTRAL MINNESOTA AND WESTERN WISCONSIN...AND AREA WIDE SATURDAY
AND SATURDAY NIGHT. THE THREAT FOR HEAVY RAIN AND LOCALIZED FLASH
FLOODING WILL ACCOMPANY THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TONIGHT ACROSS
SOUTHWESTERN MINNESOTA.

$$

JLT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
447 PM CDT WED AUG 20 2014

MNZ071-072-SDZ038>040-050-052>054-057>059-063-064-212200-
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-GREGORY-JERAULD-
SANBORN-MINER-BRULE-AURORA-DAVISON-CHARLES MIX-DOUGLAS-
447 PM CDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
MINNESOTA...EAST CENTRAL SOUTH DAKOTA...SOUTH CENTRAL SOUTH
DAKOTA AND SOUTHEAST SOUTH DAKOTA.

.DAY ONE...TONIGHT

THUNDERSTORMS WILL DEVELOP THIS EVENING AND OVERNIGHT...LINGERING
OVER PARTS OF SOUTHWEST MINNESOTA LATE TONIGHT. SOME STORMS COULD
BE SEVERE. THE GREATEST THREAT FOR AN ISOLATED TORNADO APPEARS TO
BE IN SOUTH CENTRAL SOUTH DAKOTA THIS EVENING...BUT CANNOT BE
TOTALLY RULED OUT ALONG A STALLED WIND SHIFT LINE ALONG THE
HIGHWAY 14 CORRIDOR LATE THIS EVENING. OTHERWISE LARGE HAIL IS
ALSO A THREAT WITH A MARGINAL THREAT FOR STRONG STRAIGHT LINE
WINDS. THE SEVERE THREAT WILL SLOWLY DECREASE AFTER THE OVERNIGHT
HOURS. LOCALIZED HEAVY RAIN COULD ALSO OCCUR IN THE STRONGER CELLS
WHICH COULD PRODUCE SHORT TERM URBAN FLOODING IN POOR DRAINAGE
AREAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ANOTHER ROUND OF THUNDERSTORMS WILL LIKELY OCCUR FROM LATER FRIDAY
THROUGH SATURDAY NIGHT. A FEW OF THESE STORMS COULD ALSO BE SEVERE...
WITH AREAS OF HEAVY RAIN A THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
447 PM CDT WED AUG 20 2014

IAZ001-MNZ080-081-089-090-097-098-SDZ055-056-060>062-065>069-
212200-
LYON IA-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE-ROCK-LAKE-
MOODY-HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN SD-
BON HOMME-YANKTON-
447 PM CDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
IOWA...SOUTHWEST MINNESOTA...EAST CENTRAL SOUTH DAKOTA AND
SOUTHEAST SOUTH DAKOTA.

.DAY ONE...TONIGHT

THERE IS A RISK OF SEVERE THUNDERSTORMS MAINLY LATE THIS EVENING
AND IN THE OVERNIGHT HOURS TONIGHT. THE MAIN THREAT WILL BE LARGE
HAIL. IN ADDITION...LOCALLY HEAVY RAINFALL COULD OCCUR IN THE
STRONGER CELLS...WHICH COULD PRODUCE SOME SHORT TERM URBAN
FLOODING IN POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

HEAT INDEX VALUES WILL LIKELY RISE INTO THE MID 90S THURSDAY
AFTERNOON. OUTDOOR SCHOOL ACTIVITIES SHOULD TAKE NOTE OF THIS AND
MAKE PROPER PRECAUTIONS.

ANOTHER ROUND OF THUNDERSTORMS WILL LIKELY OCCUR FROM LATER FRIDAY
THROUGH SATURDAY NIGHT. A FEW OF THESE STORMS COULD ALSO BE SEVERE...
WITH AREAS OF HEAVY RAIN A THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
447 PM CDT WED AUG 20 2014

IAZ002-003-012>014-020>022-031-032-NEZ013-014-SDZ070-071-212200-
OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY IA-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-CLAY SD-UNION-
447 PM CDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
IOWA...NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA.

.DAY ONE...TONIGHT

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE TONIGHT...BUT IT
APPEARS A BULK OF THE SEVERE ACTIVITY WILL REMAIN WEST AND NORTH
OF THIS AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

HEAT INDEX VALUES WILL LIKELY RISE INTO THE MID 90S TO NEAR 100
DEGREES THURSDAY AFTERNOON. OUTDOOR SCHOOL ACTIVITIES SHOULD TAKE
NOTE OF THIS AND MAKE PROPER PRECAUTIONS.

ANOTHER ROUND OF THUNDERSTORMS WILL LIKELY OCCUR FROM LATER FRIDAY
THROUGH SATURDAY NIGHT. A FEW OF THESE STORMS COULD ALSO BE SEVERE...
WITH AREAS OF HEAVY RAIN A THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL PROBABLY NOT BE NEEDED TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
216 PM MDT WED AUG 20 2014

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-211300-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
216 PM MDT (316 PM CDT) WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS MUCH OF THE
AREA THIS AFTERNOON AND EVENING. ISOLATED STRONG TO SEVERE STORMS
WITH HAIL AND GUSTY WINDS ARE POSSIBLE THROUGH EARLY THIS
EVENING...MAINLY NEAR AND EAST OF A LINE FROM LEMMON TO MARTIN. LARGE
HAIL AND STRONG WIND GUSTS WILL BE THE MAIN THREATS FROM ANY SEVERE
STORMS...WITH AN ISOLATED TORNADO ALSO POSSIBLE ACROSS SOUTH CENTRAL
SOUTH DAKOTA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE AREA
FOR THE REST OF THE WEEK. WIDESPREAD SEVERE WEATHER IS NOT
ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND FORKS ND
520 AM CDT WED AUG 20 2014

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-211030-
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-EDDY-NELSON-GRAND FORKS-
GRIGGS-STEELE-TRAILL-BARNES-CASS-RANSOM-SARGENT-RICHLAND-
WESTERN WALSH-
520 AM CDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NORTH
DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WILL SPREAD NORTHEASTWARD ACROSS THE REGION LATE
TODAY AND TONIGHT. THERE IS A CHANCE OF SEVERE THUNDERSTORMS WITH
LARGE HAIL AND DAMAGING WINDS ACROSS FAR SOUTHEASTERN NORTH DAKOTA
LATE THIS AFTERNOON AND THIS EVENING. A FEW STRONG TO SEVERE
THUNDERSTORMS ARE POSSIBLE OVER THE REST OF THE REGION AS WELL. LOCALLY
HEAVY RAINFALL IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SHOWERS AND THUNDERSTORMS WILL CONTINUE ON THURSDAY...ESPECIALLY
OVER NORTHWESTERN MINNESOTA...WITH LOCALLY HEAVY RAINFALL
POSSIBLE. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE POSSIBLE AT TIMES
LATE THIS WEEK INTO EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND THIS EVENING.

$$

JAM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
453 AM CDT WED AUG 20 2014

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-211000-
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-
453 AM CDT WED AUG 20 2014 /353 AM MDT WED AUG 20 2014/

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

THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON OVER CENTRAL
SOUTH DAKOTA...THEN PUSH EAST INTO EASTERN SOUTH DAKOTA AND WEST
CENTRAL MINNESOTA INTO THE EVENING. SEVERE STORMS ARE POSSIBLE
WITH LARGE HAIL AND STRONG WINDS. A COUPLE TORNADOES ARE POSSIBLE
AS WELL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORM CHANCES RETURN TO THE FORECAST FRIDAY AND THROUGH THE
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

$$
TMT


Hydrologic Outlook


HYDROLOGIC OUTLOOK
NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-211030-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
522 AM CDT WED AUG 20 2014 /422 AM MDT WED AUG 20 2014/

...SEVERAL ROUNDS OF HEAVY RAIN THROUGH THE WEEKEND...

TWO TO FIVE INCHES OF RAINFALL IS FORECAST ACROSS MUCH OF WESTERN
AND CENTRAL NORTH DAKOTA THROUGH THE WEEKEND. THE FIRST ROUND OF
HEAVY RAIN WILL BEGIN THIS AFTERNOON AND END THURSDAY MORNING.
ADDITIONAL ROUNDS ARE FORECAST THURSDAY NIGHT THROUGH THE
WEEKEND.

FOR THE MISSOURI RIVER TRIBUTARIES...
THE KNIFE AND HEART RIVERS AND APPLE CREEK WERE HIT PARTICULARLY
HARD BY HEAVY RAIN LAST WEEKEND. THESE RIVERS ARE RUNNING WELL
ABOVE NORMAL. RAINFALL GREATER THAN ONE INCH MAY RESULT IN
OVERLAND FLOODING...POSSIBLY TRANSITIONING INTO FLOODING ALONG SMALL
STREAMS AND RIVERS.

IN THE SOURIS AND JAMES RIVER BASINS...
UNLESS RECEIVED IN A DOWNPOUR...SOILS SHOULD BE ABLE TO HANDLE
TWO TO THREE INCHES OF RAIN FROM THE FIRST ROUND OF THUNDERSTORMS
TODAY AND TONIGHT. SUBSEQUENT HEAVY RAINS WOULD LIKELY RESULT IN
EXCESSIVE RUNOFF...SO OVERLAND AND SMALL STREAM FLOODING IS
POSSIBLE.

KEEP INFORMED OF THE LATEST WEATHER AND WATER CONDITIONS AT
WEATHER.GOV/BIS.

$$

SCHECK/TM

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE