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Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
416 AM CDT FRI AUG 22 2014

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-230930-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
416 AM CDT FRI AUG 22 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST
CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST
MISSOURI.

.DAY ONE...TODAY AND TONIGHT

SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED AGAIN TODAY.
INITIALLY STORMS THIS MORNING WILL CONTINUE THROUGH SUNRISE THEN
ARE EXPECTED TO WEAKEN. THESE MORNING STORMS WILL PRODUCE LOCALLY
HEAVY RAINFALL. THE STRONGER STORMS MAY ALSO PRODUCE PEA SIZED TO
NICKEL SIZED HAIL.

ANOTHER ROUND OF STORMS IS EXPECTED TO DEVELOP THIS AFTERNOON AND
EVENING AS TEMPERATURES PUSH INTO THE UPPER 80S AND A STATIONARY
FRONT REMAINS IN THE AREA. THE EXACT LOCATION WILL DEPEND ON THE
FRONT...BUT AT THIS TIME IT APPEARS THE MOST LIKELY AREA FOR
AFTERNOON THUNDERSTORM DEVELOPMENT WILL BE FROM I-80 SOUTH TO INTO
NORTHERN MISSOURI. THESE STORMS WILL AGAIN PRODUCE INTENSE
RAINFALL RATES WITH TOTALS OVER 1 INCH IN SOME SPOTS.

IN ADDITION TO THE STORMS...WARM AND HUMID AIR WILL REMAIN IN
PLACE OVER THE AREA. AFTERNOON HEAT INDICES ARE EXPECTED TO APPROACH
100 DEGREES...PARTICULARLY OVER SOUTHEAST IOWA AND WEST CENTRAL
ILLINOIS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY...THUNDERSTORMS ARE POSSIBLE ACROSS EASTERN IOWA AND
NORTHWEST ILLINOIS. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL...
WITH A LOW POTENTIAL FOR STORMS WITH LARGE HAIL AND DAMAGING
WINDS.

THERE IS A POTENTIAL FOR THUNDERSTORMS FROM MONDAY THROUGH
THURSDAY...ESPECIALLY DURING THE LATE AFTERNOON AND OVERNIGHT
HOURS. HEAVY RAINFALL WILL BE POSSIBLE WITH STORMS MONDAY THROUGH
WEDNESDAY AND SEVERE STORMS WITH DAMAGING WIND AND LARGE HAIL
CANNOT BE RULED OUT.

VERY WARM TEMPERATURES AND HIGH HUMIDITY MAY RESULT IN HEAT INDEX
VALUES REACHING NEAR TO JUST ABOVE 100 IN THE AFTERNOON HOURS
FROM SATURDAY THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS UNLIKELY TODAY OR TONIGHT. HOWEVER...PLEASE
REPORT ANY HAIL...WIND GUSTS OVER 40 MPH...AND RAIN TOTALS OVER
ONE INCH TO THE NWS FORECAST OFFICE IN THE QUAD CITIES.

$$

DMD/SHEETS








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