000
AWUS83 KDMX 122110
RWSDMX
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-
092>097-130200-

WEATHER SUMMARY FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
355 PM CDT WED JUN 12 2013

SKIES WERE PARTLY TO MOSTLY SUNNY ACROSS THE STATE THROUGH THE
AFTERNOON HOURS.  BY 3 PM THUNDERSTORMS BEGAN TO DEVELOP ACROSS THE
NORTH AND NORTHEAST PORTIONS OF THE STATES.  TEMPERATURES ACROSS
IOWA VARIED QUITE A BIT AT 3 PM.  ACROSS THE FAR NORTHWEST WHERE
COOLER AIR WAS WORKING INTO THE STATE...READINGS WERE IN THE MID 70S
WITH LOWER TO MID 80S ACROSS NORTH CENTRAL AND NORTHEAST IOWA.
READINGS WERE IN THE UPPER 80S TO LOWER 90S ACROSS CENTRAL AND
SOUTHERN IOWA.

A STRONG UPPER LEVEL DISTURBANCE WILL CROSS THE UPPER MIDWEST
TONIGHT.  AT THE SURFACE LOW PRESSURE OVER EASTERN IOWA WITH A WARM
FRONT EXTENDING INTO NORTHEASTERN IOWA AND NORTHWEST ILLINOIS WILL
ALSO MOVE TO THE EAST THROUGH THURSDAY MORNING.  THUNDERSTORMS WILL
PERSIST THROUGH EARLY THIS EVENING ACROSS NORTHEASTERN IOWA AND
LOCATIONS NORTH AND EAST AS THESE TWO SYSTEMS MOVE EAST.  SOME
STORMS COULD BE SEVERE IN IOWA WITH DAMAGING WIND...LARGE HAIL AND
TORNADOES ALL POSSIBLE THROUGH EARLY EVENING.  BY LATE EVENING THE
SEVERE WEATHER THREAT WILL SHIFT EAST AND BECOME MORE OF A DAMAGING
WIND THREAT.

HIGH PRESSURE WILL BUILD INTO THE UPPER MIDWEST FROM THE WEST LATER
TONIGHT THROUGH THURSDAY BRINGING COOLER...LESS HUMID AIR INTO THE
REGION AND A BREAK FROM THE RAIN.  THIS WILL BE SHORT LIVED HOWEVER
BECAUSE ANOTHER FRONTAL BOUNDARY AND SURFACE LOW PRESSURE SYSTEM
WILL PUSH IN FROM THE WEST LATE THURSDAY NIGHT THROUGH FRIDAY.
THUNDERSTORMS WILL DEVELOP NEAR THE FRONTAL BOUNDARY AND MOVE ACROSS
THE REGION DURING THIS TIME.  THE FRONTAL BOUNDARY IS EXPECTED TO
STALL OVER THE REGION THROUGH THE WEEKEND BRINGING DAILY CHANCES FOR
THUNDERSTORMS.  HIGHS WILL BE SEASONAL WITH UPPER 70S NORTH TO
AROUND 90 SOUTH.  LOWS THROUGH THE WEEKEND WILL BE IN THE 60S.

&&

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.

$$

FAB