000
AWUS83 KDMX 140202
RWSDMX
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-
092>097-141015-

WEATHER SUMMARY FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
902 PM CDT THU JUN 13 2013

SCATTERED SHOWERS AND THUNDERSTORMS OVER WEST CENTRAL AND
SOUTHWEST IOWA SLOWLY DIMINISHED LEAVING A SMALL AREA OF SHOWERS
OVER WESTERN IOWA. SKIES WERE MOSTLY CLEAR OVER THE NORTHEAST HALF
OF THE STATE. HIGH TEMPERATURES WERE IN THE MIDDLE AND UPPER 70S
OVER THE NORTHWEST AND NORTH CENTRAL COUNTIES TO THE LOWER AND
MIDDLE 80S SOUTH. NORTHEAST WINDS WERE LESS THAN 10 MPH.

HIGH PRESSURE WILL SLIDE EAST TONIGHT ALLOWING A LOW PRESSURE
SYSTEM AND ASSOCIATED WARM FRONT OVER THE CENTRAL AND SOUTHERN PLAINS
TO SHIFT INTO THE UPPER MIDWEST OVERNIGHT THROUGH FRIDAY. THE
FRONTAL BOUNDARY ALSO MARKS AN AREA WHERE THE AIR MASS IS MORE
UNSTABLE. AS AN UPPER LEVEL DISTURBANCE SHIFTS ACROSS THE REGION
TONIGHT...IT WILL INITIATE SOME THUNDERSTORMS OVER NEBRASKA THAT
WILL MOVE INTO WESTERN IOWA LATE TONIGHT AND ACROSS THE REGION ON
FRIDAY. SCATTERED THUNDERSTORMS ARE FORECAST FOR THE REGION ON
FRIDAY.

BY FRIDAY NIGHT AN UPPER LEVEL STORM SYSTEM OVER CANADA WILL
PRODUCE A WEST TO EAST FLOW OVER THE UPPER MIDWEST. THIS WILL
STALL THE FRONTAL BOUNDARY OVER THE REGION FOR MUCH OF THE WEEKEND
AND BRING PERIODS OF THUNDERSTORMS FROM FRIDAY NIGHT THROUGH EARLY
MONDAY. SOME HEAVY RAINFALL IS POSSIBLE WITH THE STORMS AND THERE
MAY ALSO BE A FEW PERIODS OF STRONG TO SEVERE STORMS AS WELL.

TEMPERATURES WILL BE SEASONAL INTO NEXT WEEK WITH HIGHS IN THE MID
TO UPPER 70S NORTH AND MID 80S SOUTH.

&&

THE NATIONAL WEATHER SERVICE IN DES MOINES WILL DISCONTINUE THE
ISSUANCE OF THE 920 PM REGIONAL WEATHER SUMMARY EFFECTIVE
JUNE 15 2013.  AFTER THAT DATE...THE REGIONAL WEATHER SUMMARY
WILL ONLY BE ISSUED AROUND 500 AM...1100 AM... AND 500 PM.

IF THERE ARE QUESTIONS OR COMMENTS ABOUT THIS CHANGE...PLEASE
EMAIL /IN ALL LOWERCASE/ JEFF.JOHNSON...AT SYMBOL...NOAA.GOV OR
CALL 515.270.4501 EXTENSION 726.

$$