10 Nov 2010 Extended Forecast

A TROUGH OF LOW PRESSURE OVER THE EASTERN DAKOTAS AND NEBRASKA WILL PUSH NORTHEAST TODAY. SURFACE LOW PRESSURE OVER NORTH DAKOTA WITH A COLD FRONT EXTENDING ACROSS THE SAME AREA WILL ALSO MOVE NORTHEAST BY TONIGHT. SHOWERS ARE BREAKING OUT OVER EASTERN NEBRASKA THIS MORNING AND THESE SHOWERS MAY MOVE INTO WESTERN IOWA LATER THIS MORNING. DURING THE AFTERNOON THE COLD FRONT WILL MAY ITS WAY ACROSS WESTERN AND CENTRAL IOWA. LATER IN THE AFTERNOON SHOWERS AND ISOLATED THUNDERSTORMS WILL DEVELOP ALONG THE FRONTAL BOUNDARY WHICH SHOULD EXTEND FROM EASTERN MINNESOTA AND WEST CENTRAL IOWA SOUTHWARD INTO CENTRAL MISSOURI. LIMITED MOISTURE WITH THIS SYSTEM WILL HAMPER THE DEVELOPMENT OF THUNDERSTORMS AND ANY THREAT OF HEAVY RAIN - AND SHOULD STAY WEST OF POW CTY. WEAK HIGH PRESSURE WILL THEN MOVE INTO THE REGION THURSDAY BRINGING IN COLDER AIR.

A SECOND LOW PRESSURE SYSTEM WILL MOVE INTO THE REGION THURSDAY NIGHT AND FRIDAY. THIS SYSTEM WILL HAVE SOME BETTER MOISTURE TO WORK WITH AND WILL BE A LITTLE STRONGER. AS A RESULT...WIDESPREAD RAIN WILL OCCUR OVER THE REGION WITH ISOLATED THUNDERSTORMS POSSIBLE OVER SOUTHERN LOCATIONS. TEMPERATURES WITH THIS SYSTEM WILL BE MARKEDLY COLDER AND THERE WILL BE CHANCES FOR SNOW LATE FRIDAY NIGHT AS THIS SYSTEM EXITS TO THE EAST.


10 Nov 2010 Extended Forecast

Today 10th - Dry/Breezy - High 65.

Thurs 11th - Increasing Clouds with Showers - Tshowers develop Late - Temps 55/40.

Fri 12th - TShowers - Breezy - Temps 45/33 - Rain changing to Lt Snow overnite.

Sat 13th - Lt Rain/Snow Mix before going Mostly Cloudy during the afternoon - Temps 40/28.

Sun Thru Tue 14th thru 16th - Partly Cloudy Sunday/Monday - Snowshowers Tuesday.

Wed and Thurs 17th/18th - Rain/Snow Mix.

Longterm: Very unsettled after the 18th - Turning Colder (below normal) after the
20th and looks to stay there thru the Christmas Holidays. Looks like my Winter Forecast is on schedule.

Make no mistake; it is very cold way up north. Toward the Arctic Circle, the temperature has already fallen to 20 below zero, and it will keep dropping.

Currently, that bitter air is all bottled up, but a pathway south will open up next week. The cold will get into the North Central states beginning next Thursday when temperatures may not leave the teens in Montana and North Dakota.

The arctic air will spread south and east late next week, possibly triggering a significant lake-effect snow event - and bringing a strong chill as far south as Oklahoma City.