Thursday, August 18, 2011

Thursday, 18 August 2011 Extended Pow County Forecast

A WEAK LOW PRESSURE SYSTEM SITS ACROSS THE NEB/SD BORDER THIS MORNING AND WILL APPROACH THE MISSOURI RIVER VALLEY LATER TODAY BRINGING SHOWERS AND THUNDERSTORMS TO WESTERN IOWA BY THE LATE AFTERNOON AND OVERNITE.  A FEW OF THE STORMS MAY BE SEVERE WITH LOCALLY HEAVY RAINS AND GUSTY STRAIGHT LINE WINDS. SOME OF THESE SHOWERS WILL TRACK INTO CENTRAL IOWA OVERNITE, AND MOVE SOUTH TO THE MO BORDER BY MID MORNING FRIDAY AND STALL TO OUR SOUTH.  WEAK WAVES OF LOW PRESSURE WILL MOVE OVER THE SURFACE FRONT KEEPING LOW SHOTS AT SHOWERS THRU THE WEEKEND - MAINLY FOR CENTRAL AND SOUTHERN IOWA.  DON'T EXPECT A GOOD RAINMAKER OUT OF THIS.  THE ONLY REAL BENEFICIAL RAINFALL APPEARS TO STAY WELL TO OUR WEST AND SOUTHWEST - THE FLIP SIDE OF THAT?  THEY GET THE SEVERE WEATHER.


Today and Fri 18th/19th: Dry Today with Isolated Tshowers developing overnite and lasting into midday Fri - then Dry - Temps 83/85.


Sat thru Mon 20th-22nd: Isolated Tshowers early Sat - then mainly Dry with Isolated Showers mainly south of I-80 thru Sunday - (1/4"-1/2" Rain) - then Dry Sun afternoon/Monday - Temps Low/Mid 80's.


Tues and Wed 23rd/24th:  Isolated Showers Tues - Dry Wed - Temps Mid 80's.


Thurs thru Sat 25th-27th: Dry Thurs/Fri - Tshowers Sat - Temps Mid 80's.


Sun thru Tues 28th-30th: Dry Sun - Tshowers Tues - Dry Wed - Temps High 70's.


Wed and Thurs 31st/1st Sept:  Tstorms.

Note:  Expect the first Hurricane Landfall of the season to Hit Florida around the 25th and track up the coast hitting Georgia and the Carolinas.....


We need rain!  Here's what the National Weather Service Drought Monitor is saying about Iowa and surrounding states:  Central and Midwest: Drought impacts have developed quickly in the Corn Belt states of South Dakota, Iowa, Illinois and Indiana. Multiple days of 100+ degree temperatures have combined with below average precipitation over the last few weeks to stress the corn plants, particularly in areas with sandier soils or areas with delayed planting due to a wet spring. This “flash drought” is depicted as D1, moderate drought, in southeastern South Dakota, and from southeast Iowa to central Indiana. The soybean regions have not reported similar conditions thus far.

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