A WARM FRONT EXTENDS ACROSS THE MO/IA BORDER, WITH LOW PRESSURE OVER NRN KANSAS. THIS BOUNDARY IS THE FOCAL POINT FOR SHOWERS AND THUNDERSTORMS IN WESTERN IA THIS MORNING.......THE FRONT WILL LIFT BACK NORTH THIS AFTERNOON FIRING SHOWERS AND THUNDER THRU CENTRAL IOWA TODAY THRU WEDNESDAY WITH PERIODS OF HEAVIER RAINFALL - THEN HIGH PRESSURE BUILDS IN PUSHING THE FRONT INTO NRN MO AND CENTRAL IL WEDNESDAY EVENING..........
BRIEF DRY OUT WED PM AND THURSDAY....HIGH PRESSURE WILL MAINTAIN THRU THURSDAY EVENING WHEN YET ANOTHER SYSTEM DEVELOPS ALONG THE FRONT RANGE OF THE ROCKIES. WINDS WILL ONCE AGAIN GO SOUTHERLY AND MOISTURE WILL INCREASE THRU CENTRAL IOWA. EXPECT STRONG SOUTH WINDS FRIDAY AS THE SYSTEM PUSHES WEST TO EAST. ISOLATED SHOWERS AND THUNDER WILL DEVELOP LATE FRIDAY NITE - BRIEF DRYING DURING THE DAY SATURDAY - THEN ANOTHER ROUND OF THUNDERSTORMS SATURDAY NITE AND SUNDAY..........
21 JUNE 2010 EXTENDED FORECAST
TODAY THRU THURSDAY 21ST - 24TH - SHOWERS/ISOLATED THUNDERSTORM AFTER 2PM (ISOLATED POCKETS OF HEAVY RAIN) - MOSTLY CLOUDY TUESDAY MORNING - THEN AFTERNOON AND EVENING SHOWERS/THUNDERSTORMS LASTING THRU WEDNESDAY MORNING WITH MORE HEAVY RAIN - THEN PARTLY CLOUDY AND CONTINUED UNSETTLED - TEMPS MID/HIGH 80'S
FRIDAY AND SATURDAY 25TH/26TH - MOSTLY CLOUDY AND WINDY WITH SHOWERS AND THUNDERSTORMS LATE FRIDAY - TEMPS NEAR 90
SUNDAY 27TH - SHOWERS AND THUNDERSTORMS - ENDING OVERNITE - TEMP MID 80'S
MONDAY THRU WED 28TH THRU 30TH - PARTLY CLOUDY WITH GUSTING SOUTH WINDS - HOT
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