[LeArc] Special Weather Statement : MLI@ 7/27/02 6:07:29 AM

[learc@mailman.qth.net]

The following weather message is provided by McDonough County E.S.D.A.


WWUS35 KMLI 271109
SPSMLI
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-281000-

SIGNIFICANT WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
600 AM CDT SAT JUL 27 2002

...THUNDERSTORMS ENDING THIS MORNING...THEN VERY WARM THIS
AFTERNOON...

COMPLEXES OF HEAVY RAIN PRODUCING THUNDERSTORMS WILL MOVE NORTH
AND EAST...EVENTUALLY EXITING THE AREA THIS MORNING. BEFORE THEY
DO...THEY WILL DUMP ANOTHER 1 TO 2 INCHES OF RAIN OVER AREAS FROM THE
QUAD CITIES...TO PRINCETON ILLINOIS THROUGH 8 AM. THIS RAIN WILL
PRODUCE NUISANCE FLOODING MAINLY IN URBAN AREAS EARLY THIS MORNING.
MUCH MORE SCATTERED SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE
SOUTH OF THE INTERSTATE 80 CORRIDOR THROUGH LATE MORNING BEFORE
DECREASING. ALL THIS SHOWER AND THUNDERSTORM ACTIVITY IS OCCURRING AS
A FRONTAL BOUNDARY OVER SOUTHERN IOWA IS STARTING TO LIFT BACK NORTH
AS A WARM FRONT. THIS FRONT SHOULD MAKE IT JUST NORTH OF THE AREA
ACROSS NORTHEAST IOWA AND SOUTHERN WISCONSIN BY THIS EVENING. WITH AN
UPPER LEVEL DISTURBANCE PUSHING ACROSS THE UPPER MIDWEST AND THE
FRONTAL BOUNDARY PUSHING JUST TO THE NORTH OF THE AREA...MOST OF THE
SATURDAY NIGHT THUNDERSTORM ACTIVITY SHOULD TAKE PLACE OVER MINNESOTA
AND WISCONSIN. IF THE FRONT GETS STALLED OUT FURTHER SOUTH THAN
CURRENTLY EXPECTED...SOME OF THIS THUNDERSTORM ACTIVITY COULD BLEED
SOUTH AND AFFECT AREAS FROM CEDAR RAPIDS...TO STERLING TONIGHT.

AS THE WARM FRONT LIFTS ACROSS THE AREA...THE AFTERNOON PERIOD MAY
BECOME VERY WARM AND HUMID WITH TEMPERATURES IN THE UPPER 80S...TO
AROUND 90 DEGREES. AGAIN...AFTERNOON TEMPERATURE POTENTIAL WILL
DEPEND ON THE RATE THAT LEFT OVER CLOUDS AND PRECIPITATION OVER THE
AREA THIN OUT AND DECREASE. CLOUD COVER LINGERING LONGER THAN
EXPECTED AND RAIN SOAKED SOILS...MAY LIMIT AFTERNOON HIGH
TEMPERATURES TO THE LOWER TO MIDDLE 80S.

A WARM DOME OF AIR WILL REINFORCE ITSELF OVER THE AREA ON SUNDAY.
WITH SOME SUNSHINE AND A SOUTHWESTERLY BREEZE...TEMPERATURES WILL BE
PUMPED UP INTO THE LOW TO MID 90S. THESE AMBIENT TEMPERATURES WILL
COMBINE WITH DEWPOINTS IN THE LOW TO MID 70S TO PRODUCE HEAT INDICES
FROM 100 TO 15 DEGREES BY MID SUNDAY AFTERNOON. THUS IT WILL BE A HOT
AND HUMID END TO THE WEEKEND. PLANS SHOULD BE MADE TO CURTAIL ANY
STRENUOUS OUTDOOR ACTIVITY PLANNED FOR SUNDAY.

THE NEXT CHANCE FOR SIGNIFICANT THUNDERSTORM ACTIVITY NOW APPEARS TO
BE SUNDAY NIGHT AS A COLD FRONT PUSHES TOWARD THE AREA FROM THE WEST.
THE FRONT...WHICH IS CURRENTLY EXPECTED TO REACH THE MISSISSIPPI
RIVER BY MONDAY MORNING...WILL ACT ON THE WARM AND HUMID AIR IN PLACE
OVER THE AREA TO FORM THUNDERSTORMS...SOME OF WHICH MAY BECOME
SEVERE. STAY TUNED FOR LATER UPDATES AND FORECASTS CONCERNING THE HOT
WEATHER AND NEXT ROUND OF THUNDERSTORMS.

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.

$$

JDH

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