19 AUGUST 2010 EXTENDED FORECAST

A WEAK STATIONARY FRONT HAS FORMED OVER NRN IOWA AND SRN MINN. THE FRONT WILL REMAIN STATIONARY UNTIL LOW PRESSURE SYSTEM PUSHES ESE OUT OF SOUTH DAKOTA. THIS WILL FORCE THE FRONT TO MOVE SOUTH INTO CENTRAL IOWA THRU THE DAY ON FRIDAY.........

SHOWERS AND STORMS WILL DEVELOP ALONG THE FRONT IN POW COUNTY AROUND 6AM FRIDAY AND LAST THRU THE AFTERNOON BEFORE MOVING INTO EXTREME SRN IOWA....HEAVY RAIN WITHIN SOME STRONGER TSTORMS EXPECTED - BUT RIGHT NOW IT APPEARS THE HEAVIEST RAINFALL WILL IN NE IOWA AND SRN IOWA (ALONG AND SOUTH OF HWY 34) WHERE AN EASY 1+ INCH WILL FALL LATER IN THE AFTERNOON/EVENING..........

HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT FOR THE WEEKEND - CLEARING OUR SKIES AND DRYING US UP. OVERALL, THE WEEKEND LOOKS GOOD......

TSTORMS EARLY FRIDAY 20TH INTO AFTERNOON.
SATURDAY THRU MONDAY 21ST/23RD - DRY.
TUESDAY 24TH - TSTORMS.
WEDNESDAY THRU FRIDAY 25TH/27TH - DRY/WARMER/GUSTY WIND.
SATURDAY 28TH - TSHOWERS.

19 AUGUST 2010 EXTENDED FORECAST

TODAY 19TH - NICE TODAY - MOSTLY CLOUDY LATE - TEMP 86

FRIDAY 20TH - TSHOWERS AFTER 6AM - ENDING LATE AFTERNOON (RAINFALL 1/2 INCH) - TEMP 84

SATURDAY THRU MONDAY 21ST THRU 23RD - NICE - TEMPS MID/HIGH 80'S

TUESDAY 24TH - MOSTLY CLOUDY WITH MORNING TSTORMS - THEN PARTLY CLOUDY - TEMP NEAR 80

WEDNESDAY THRU FRIDAY 25TH THRU 27TH - PARTLY CLOUDY - GUSTY SOUTH WINDS - TEMPS MID/HIGH 80'S

SATURDAY 28TH - TSHOWERS


On this day in Iowa weather history...

1912: Thunderstorms produced heavy rain across portions of northeastern Iowa overnight on August 18-19. At Dubuque 5.17 inches of rain fell in less than six hours with 1.88 inches of that total falling in just one hour. Severe flash flooding occurred in the city with several tons of brick, stones, and other debris washed down the streets. Electric car service was suspended due to water and debris covering the tracks and Union Park was largely washed out when its creek quickly overflowed its banks. Railroad tracks were also washed out and cellars were flooded throughout the city. The heavy rains across the area also caused a rapid rise on the Maquoketa River which flooded the pumping station and electric plant at Maquoketa, cutting off water and electrical service to the city for nearly a day.