Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1150 AM CDT SAT MAY 18 2013
SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-191200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
1150 AM CDT SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.
.DAY ONE...TODAY AND TONIGHT
THUNDERSTORMS...
A SMALL CHANCE OF THUNDERSTORMS EXISTS ALONG AND WEST OF THE
JAMES RIVER VALLEY LATE THIS AFTERNOON...WITH THE STORM CHANCES
THEN INCREASING DURING THE EVENING HOURS. ANY STORMS THAT DO FORM
WILL BE CAPABLE OF HAIL TO GOLF BALL SIZE AND WIND GUSTS TO 70
MPH. AN ISOLATED TORNADO WILL BE POSSIBLE TOWARD SOUTH CENTRAL
SOUTH DAKOTA. STORMS WILL BECOME MORE WIDESPREAD OVERNIGHT AND
LATE TONIGHT WITH THE SYSTEM LIKELY ORGANIZING INTO A MULTI
CELLULAR COMPLEX. AS STORMS REACH INTERSTATE 29...THE THREAT WILL
GRADUALLY TRANSITION FROM LARGE HAIL AND DAMAGING WIND...TO
SOLELY DAMAGING WIND OF 60 TO 80 MPH...BEFORE STORMS WEAKEN WELL
AFTER MIDNIGHT TOWARD HIGHWAY 71.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
SOME UNCERTAINTY REMAINS WITH THE SEVERE WEATHER THREAT ON SUNDAY
DUE TO THE DEPENDENCY OF LEFT OVER STORMS FROM TONIGHT. THE
GREATEST THREAT FOR SEVERE WEATHER WILL PROBABLY BE EAST OF THE
JAMES RIVER VALLEY SUNDAY AND SUNDAY EVENING. LARGE HAIL AND
DAMAGING WINDS WILL BE CERTAINLY POSSIBLE WITH ANY ISOLATED
DEVELOPMENT OF STORMS...WITH MULTI CELLULAR CLUSTERING ALSO
POSSIBLE WHICH WOULD CREATE MORE OF A DAMAGING WIND AND HEAVY
RAIN THREAT.
THE CHANCE OF THUNDERSTORMS WILL CONTINUE ACROSS THE AREA ON
MONDAY...ESPECIALLY DURING THE AFTERNOON AND EARLY EVENING. WHILE
SEVERE STORMS PRODUCING DAMAGING WIND AND HAIL ARE NOT
EXPECTED... THERE MAY BE A LOW END THREAT FOR A WEAK TORNADO SPIN
UP OR FUNNEL CLOUD. THIS THREAT MAY CONTINUE TUESDAY AFTERNOON
ACROSS PARTS OF NORTHWEST IOWA AND SOUTHWEST MINNESOTA.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL BE LIKELY AFTER 6 PM WEST OF THE JAMES
RIVER AND AFTER 11 PM EAST OF INTESTATE 29.
&&
FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
940 AM CDT SAT MAY 18 2013
NEZ004>010-022>029-035>038-056>059-069>071-094-191445-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
940 AM CDT SAT MAY 18 2013 /840 AM MDT SAT MAY 18 2013/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.
.DAY ONE...TODAY AND TONIGHT.
AN ACTIVE SEVERE WEATHER DAY IS EXPECTED BEGINNING LATE IN THE
AFTERNOON THROUGH THE OVERNIGHT HOURS TONIGHT. SEVERE STORMS ARE
EXPECTED TO DEVELOP ACROSS SOUTHWEST NEBRASKA LATE THIS AFTERNOON
NEAR HAYES CENTER...IMPERIAL...OGALLALA AND OSHKOSH. THE ACTIVITY
WILL
SPREAD EAST AND NORTHEAST THROUGHOUT THE EVENING HOURS AND INTO
NORTHERN AND NORTHEAST NEBRASKA TONIGHT.
TORNADO POTENTIAL WILL INCREASE BETWEEN 6 AND 9 PM AND THE AREA
OF GREATEST CONCERN WILL BE FROM STAPLETON SOUTH THROUGH NORTH
PLATTE...HAYES CENTER AND STOCKVILLE.
VERY LARGE HAIL...PERHAPS BASEBALL SIZE OR LARGER...IS EXPECTED
AS STORMS DEVELOP ACROSS SOUTHWEST NEBRASKA LATE THIS AFTERNOON
AND RAPIDLY BECOME SEVERE. VERY LARGE HAIL WILL BE POSSIBLE THIS
EVENING ALONG AND WEST OF A LINE FROM VALENTINE TO BROKEN BOW.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
A COLD FRONT WILL SLOWLY MOVE EAST...AND BE LOCATED ACROSS
EASTERN PORTIONS OF NORTH CENTRAL INTO CENTRAL NEBRASKA SUNDAY
AFTERNOON. THUNDERSTORMS...A FEW POSSIBLE SEVERE...ARE AGAIN
POSSIBLE SUNDAY AFTERNOON ALONG THE THE FRONT. THE AREA EAST OF
A LINE FROM ONEILL TO BROKEN BOW WILL BE THE AREA OF CONCERN FOR
SEVERE STORMS. LARGE HAIL TO THE SIZE OF QUARTERS AND DAMAGING
WIND GUSTS WILL BE THE MAIN CONCERNS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NEEDED LATE THIS AFTERNOON AND
EVENING.
&&
THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE
$$
TAYLOR
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
502 AM MDT SAT MAY 18 2013
SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-191300-
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-
502 AM MDT (602 AM CDT) SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.
.DAY ONE...TODAY AND TONIGHT
SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND MOVE EAST AND
NORTHEAST ACROSS NORTHEAST WYOMING AND WESTERN SOUTH DAKOTA THROUGH
THIS EVENING. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER
MOST OF WESTERN SOUTH DAKOTA. LARGE HAIL AND DAMAGING WIND GUSTS WILL
BE THE MAIN THREAT. ISOLATED TORNADOES ARE POSSIBLE.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
ACTIVE WEATHER IS FORECAST TO CONTINUE SUNDAY THROUGH TUESDAY.
SHOWERS WITH A ISOLATED THUNDERSTORMS ARE EXPECTED SUNDAY
BECOMING MOSTLY RAIN SHOWERS MONDAY AND TUESDAY. ANOTHER
ROUND OF THUNDERSTORMS IS IN THE FORECAST FOR THE END OF NEXT
WEEK.
.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
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
517 AM CDT SAT MAY 18 2013
IAZ004>007-015>017-023>028-033>039-048>050-062-191100-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-
POWESHIEK-
517 AM CDT SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...TODAY AND TONIGHT
SCATTERED THUNDERSTORMS WILL BE POSSIBLE LATE TONIGHT. THERE IS
SOME THREAT OF LARGE HAIL FROM THESE STORMS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
PERIODS OF THUNDERSTORMS ARE FORECAST SUNDAY THROUGH TUESDAY.
THERE IS THE THREAT FOR SEVERE WEATHER SUNDAY INTO MONDAY. HE
MOST SIGNIFICANT POTENTIAL EXISTS SUNDAY AFTERNOON AND EVENING
WHEN LARGE HAIL...DAMAGING WINDS AND AN ISOLATED TORNADO ARE
POSSIBLE.
THERE IS SOME THREAT FOR ADDITIONAL ISOLATED SEVERE WEATHER INTO
MONDAY WITH LARGE HAIL AND DAMAGING WINDS...MAINLY ALONG AND EAST
OF THE INTERSTATE 35 CORRIDOR.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED SUNDAY AFTERNOON AND EVENING.
$$
CC
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
517 AM CDT SAT MAY 18 2013
IAZ044>047-057>061-070>075-081>086-092>097-191100-
CRAWFORD-CARROLL-GREENE-BOONE-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-
MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
517 AM CDT SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...TODAY AND TONIGHT
SCATTERED THUNDERSTORMS ARE EXPECTED TO PUSH INTO THE AREA LATE
TONIGHT. THERE IS SOME THREAT OF LARGE HAIL WITH THESE STORMS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
PERIODS OF THUNDERSTORMS ARE FORECAST SUNDAY THROUGH TUESDAY. THERE IS
A THREAT FOR SEVERE WEATHER SUNDAY INTO MONDAY WITH THE MOST SIGNIFICANT
POTENTIAL SUNDAY AFTERNOON AND EVENING. LARGE HAIL...DAMAGING
WINDS AND AN ISOLATED TORNADO ARE POSSIBLE...ESPECIALLY LATE IN
THE DAY ON SUNDAY.
ADDITIONAL SEVERE WEATHER WILL BE POSSIBLE ON MONDAY...MAINLY
EAST OF INTERSTATE 35 WITH LARGE HAIL AND DAMAGING WINDS POSSIBLE.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS EXPECTED SUNDAY AFTERNOON AND EVENING.
ADDITIONAL ACTIVATION MAY BE NEEDED ON MONDAY.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
412 AM CDT SAT MAY 18 2013
MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-190915-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
412 AM CDT SAT MAY 18 2013 /312 AM MDT SAT MAY 18 2013/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND
NORTHEAST SOUTH DAKOTA.
.DAY ONE...SCATTERED THUNDERSTORMS THIS MORNING WILL TAPER OFF.
STORMS WILL REDEVELOP LATE THIS AFTERNOON AND EVENING AND CONTINUE
OVERNIGHT. SOME OF THESE MAY BE SEVERE ESPECIALLY ALONG AN
ABERDEEN TO PIERRE LINE EAST. PRIMARY THREATS WILL BE LARGE HAIL
AND STRONG WINDS.
.DAYS TWO THROUGH SEVEN...THUNDERSTORMS AND HEAVY RAIN WILL
CONTINUE ACROSS THE REGION SUNDAY THROUGH WEDNESDAY.
.SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION MAY BE
NECESSARY LATE THIS AFTERNOON THROUGH TONIGHT.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
404 AM CDT SAT MAY 18 2013
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
191200-
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-
404 AM CDT SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN MINNESOTA... AND WEST CENTRAL WISCONSIN.
.DAY ONE...TODAY AND TONIGHT
SCATTERED THUNDERSTORMS CAN BE EXPECTED TODAY...MAINLY ALONG
AND NORTH OF INTERSTATE 94. DURING THE DAYTIME HOURS...SEVERE
THUNDERSTORMS ARE NOT EXPECTED. HOWEVER...SOME THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS...HEAVY DOWNPOURS AND
FREQUENT LIGHTNING. GOING INTO TONIGHT...COVERAGE AND INTENSITY OF
THUNDERSTORMS WILL INCREASE FROM WEST TO EAST ACROSS MINNESOTA INTO
WESTERN WISCONSIN. A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS
GENERALLY ALONG AND WEST OF A LINE FROM LITTLE FALLS TO HUTCHINSON
TO FAIRMONT...WHERE ISOLATED THUNDERSTORMS WILL BE CAPABLE OF
PRODUCING LARGE HAIL AND DAMAGING WINDS. TIMING OF SEVERE
THUNDERSTORMS APPEARS TO BE LATE THIS EVENING THROUGH THE OVERNIGHT
HOURS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THROUGH TUESDAY.
MUCH OF THE AREA IS OUTLOOKED FOR A SLIGHT RISK FOR SEVERE
THUNDERSTORMS...GENERALLY SOUTH OF A LINE FROM...BENSON...ZIMMERMAN
TO NEAR EAU CLAIRE. TIMING OF THE THREAT FOR SEVERE WEATHER WOULD
COME SUNDAY AFTERNOON INTO SUNDAY NIGHT. LARGE HAIL AND DAMAGING
WINDS ARE THE MOST LIKELY THREATS.
HEAVY RAINFALL IS ALSO LIKELY IN THE STRONGER STORMS. RAINFALL
AMOUNTS COULD EXCEED 4 INCHES BY TUESDAY. THESE AMOUNTS MAY CAUSE
SIGNIFICANT RISES IN RIVERS AND STREAMS...AND MAY ALSO CAUSE URBAN
FLOODING.
.SPOTTER INFORMATION STATEMENT...
SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TONIGHT AND AGAIN SUNDAY.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
354 AM CDT SAT MAY 18 2013
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-182300-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-
STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-
SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE-
JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON-
354 AM CDT SAT MAY 18 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST
NEBRASKA AND SOUTHEAST NEBRASKA.
.DAY ONE...TODAY AND TONIGHT
THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON OVER THE
WESTERN HIGH PLAINS TOWARD CENTRAL NEBRASKA. SOME OF THESE STORMS
COULD MOVE TOWARD COLUMBUS...NORFOLK AND ALBION BY LATE THIS
AFTERNOON...BUT THIS IS MORE LIKELY TO OCCUR THIS EVENING. THE
STRONGER OF THESE STORMS COULD PRODUCE LARGE HAIL AND DAMAGING
WINDS.
THUNDERSTORMS...POSSIBLY SEVERE...COULD MOVE EAST ACROSS
MUCH OF THE AREA TONIGHT. THE GREATEST RISK OF SEVERE WEATHER
TONIGHT WOULD APPEAR TO BE WEST OF OMAHA AND LINCOLN...BUT A
SEVERE STORM CANNOT BE RULED OUT ANYWHERE OVER THE REGION. LARGE
HAIL AND DAMAGING WINDS WOULD APPEAR TO BE THE PRIMARY HAZARDS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
ON SUNDAY THE UPPER LEVEL SYSTEM WILL LIKELY CAUSE LOW PRESSURE TO
DEEPEN SOMEWHERE OVER EASTERN NEBRASKA DURING THE AFTERNOON. THIS
COULD SET THE STAGE FOR ANOTHER ROUND OF SEVERE WEATHER. THE MAIN
SEVERE WEATHER THREAT WILL BE VERY LARGE HAIL...GREATER THAN TWO
INCHES...AND DAMAGING WINDS. IN ADDITION...A DRY-LINE AND WARM
FRONT COULD RESIDE OR MOVE INTO THE REGION PRODUCING THE RISK FOR
TORNADO DEVELOPMENT.
THE CHANCE FOR THUNDERSTORMS CONTINUES THROUGH TUESDAY OF NEXT
WEEK.
.SPOTTER INFORMATION STATEMENT...
THERE IS A CHANCE THAT SPOTTERS COULD BE NEEDED BY LATE THIS
AFTERNOON...BUT MORE LIKELY TONIGHT AS THE SEVERE WEATHER THREAT
INCREASES.
$$
PEARSON
