28 APRIL 2010 EXTENDED FORECAST

28 APRIL 2010 EXTENDED FORECAST

A NEW STORM HAS MOVED INTO THE PACIFIC NORTHWEST AND WILL MOVE AT A DECENT PACE ACROSS THE COUNTRY AND WILL SPARK A NEW OUTBREAK OF SEVERE THUNDERSTROMS, HEAVY RAIN, HAIL, AND PERHAPS TORNDOES.

THE SEVERE WEATHER OUTBREAK WILL BEGIN LATE TONITE ON THE HIGH PLAINS/WRN NEBRASKA AND SPREAD FARTHER EAST ACROSS IOWA THURSDAY INTO FRIDAY, BEFORE REACHING THE MISS RIVER LATE FRIDAY.

THIS STORM SYSTEM IS SETTING THE STAGE FOR A PROLONGED PERIOD OF UNSETTLED WEATHER FOR IOWA, NEBRASKA, KANSAS, MISSOURI, AND ILLINOIS............

MEANWHILE: TODAY WILL BE A TRANSITION DAY WITH INCREASING SOUTHERLY WINDS AND WARMER TEMPERATURES. HIGH CLOUDS WILL MOVE INTO THE AREA THIS AFTERNOON AND EVENING. AN ACTIVE WEATHER PATTERN IS RETURNING TO IOWA FOR THE NEXT COUPLE OF DAYS. A VERY STRONG UPPER LEVEL STORM SYSTEM WILL BE TRACKING THROUGH THE CENTRAL UNITED STATES THROUGH SATURDAY. SEVERAL AREAS OF LOW PRESSURE WILL PULL GULF MOISTURE NORTH INTO IOWA...ALONG WITH VERY WARM AND INCREASINGLY MORE HUMID AIR. THIS WILL SET THE STAGE FOR THUNDERSTORMS BY THURSDAY AFTERNOON WITH THE POSSIBILITY FOR SEVERE WEATHER LATE THURSDAY, THURSDAY NIGHT AND AGAIN ON FRIDAY AFTERNOON.

POWESHIEK COUNTY, IOWA (WEATHER)

TODAY 28TH - PARTLY CLOUDY - TEMP 65

THURSDAY AND FRIDAY 29TH/30TH - WINDY - SHOWERS/THUNDERSTORMS (POSSIBLY SEVERE) DEVELOPING THURSDAY AFTERNOON/EVENING WITH HEAVIER RAINFALL (UP TO 1 INCH) OVERNITE INTO MID DAY FRIDAY - THEN ISOLATED SHOWERS/THUNDER (ISOLATED SEVERE POW CTY AND EASTWARD) THE REMAINDER OF FRIDAY - TEMP 75/70

SAT THRU MONDAY MAY 1ST-3RD - WINDY - PARTLY CLOUDY BCMG CLOUDY WITH SHOWERS AND THUNDERSTORMS BY AFTERNOON SATURDAY AND LASTING THRU MONDAY AFTERNOON - TEMPS LOW 70'S

TUESDAY AND WED 4TH/5TH - THUNDERSTORMS TUESDAY THEN ISOLATED RAIN SHOWERS ENDING WED - COOLER WITH GUSTY NORTH WINDS

THURSDAY 6TH - PARTLY CLOUDY

FRIDAY 7TH - INCREASING CLOUDS WITH SHOWERS AND THUNDERSTORMS

STATEWIDE WEATHER:

WED - PARTLY CLOUDY - BCMG WINDY
THURS - INCREASING CLOUDS - WINDY - AFTERNOON SHOWERS/SEVERE THUNDER WEST - MOVING EAST OVERNITE
FRIDAY - SHOWERS WEST - THUNDERSTORMS EAST
SATURDAY - PARTLY TO MOSTLY CLOUDY WITH AFTERNOON SHOWERS/THUNDER STATEWIDE - GUSTY SW WINDS
SUNDAY - SHOWERS STATEWIDE - MORNING THUNDER SOUTHEAST
MONDAY - MORNING THUNDER WEST - AFTERNOON THUNDER EAST
TUESDAY - HEAVY THUNDERSTORMS (PRECIP UP TO 1 INCH) WEST MOVING ACROSS STATE THRU THE DAY - WINDY
WED/THURS - BCMG PARTLY CLOUDY - WINDY
FRIDAY - SHOWERS AND THUNDER