16 JUNE 2010 EXTENDED FORECAST

WEAK HIGH PRESSURE DOMINATES IOWA TODAY - BUT MOVES QUICKLY EAST WITH ANOTHER RAINY SITUATION SETTING UP.

REST OF THE WEEK: A VERY UNSTABLE WEATHER PATTERN CONTINUES WITH HIGH PRESSURE OVER THE EAST AND WEST COASTS - AND LOW PRESSURE OVER THE MIDSECTION OF THE COUNTRY........

WE WILL GO BACK INTO SOUTHERLY FLOW - TEMPS AND MOISTURE WILL BE ON THE INCREASE OVER THE NEXT 24 HOURS AS LOW PRESSURE DEVELOPS OVER KANSAS - SWINGING OUR WINDS FROM THE SOUTH BY MIDNITE TONITE. EXPECT SHOWERS/THUNDER TO FORM OVER WESTERN IOWA LATE TONITE, AND SLOWLY MOVE EAST THRU THE PERIOD - AND BE NEAR POW COUNTY BY NOON THURSDAY.........

LOOKING AHEAD...SOUTHWESTERLY FLOW WILL PREVAIL THROUGH THE WEEKEND WITH A SURFACE BOUNDARY EXPECTED TO SET UP ACROSS CENTRAL IOWA, PROVIDING THE FOCUS FOR MORE STORMS. THE EXACT LOCATION OF THIS BOUNDARY REMAINS UNCERTAIN...BUT THE POTENTIAL EXISTS FOR SEVERAL HEAVY RAIN EVENTS TO TRACK ACROSS THE STATE - MOST LIKELY ALONG THE I-80 CORRIDOR....

SATURDAY LOOKS TO BE THE BEST RAIN MAKING DAY AS AN UPPER LEVEL WAVE IS EXPECTED TO INTERSECT THE FRONTAL BOUNDARY THRU THE AFTERNOON. SEVERE THUNDERSTORMS ARE ALSO POSSIBLE - WITH WIND AND HAIL BEING THE GREATEST THREAT............

16 JUNE 2010 EXTENDED FORECAST

TODAY 16TH - PARTLY CLOUDY - TEMP 85

THURSDAY 17TH - PARTLY CLOUDY - THEN MOSTLY CLOUDY WITH ISOLATED THUNDERSTORMS BY NOON - GUSTY SOUTH WIND - TEMP NEAR 90 - THUNDERSTORMS TAPERING TO SHOWERS OVERNITE

FRIDAY 18TH - MOSTLY CLOUDY WITH AFTERNOON SHOWERS/STRONG THUNDER - TEMP MID 80'S

SATURDAY AND SUNDAY 19TH/20TH - GUSTY SOUTHEAST WINDS - UNSETTLED - INCREASING CLOUDS WITH INTER SHOWERS AND THUNDER THRU WEEKEND - TEMPS MID 80'S - HEAVY RAIN POSSIBLE SATURDAY AFTERNOON

MONDAY THRU WEDNESDAY 21ST - 23RD - SHOWERS MONDAY MORNING - THEN PARTLY CLOUDY - CONTINUED UNSETTLED - WINDY - TEMPS MID/HIGH 80'S