Severe Thunderstorm Warning 143, NWS Topeka, KS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
311 PM CDT WED JUN 24 1998

...MAIN FORECAST PROBLEM IS THUNDERSTORM CHANCES THIS EVENING...

18Z SURFACE MAP HAD SURFACE LOW NORTHWEST OF LEXINGTON NEBRASKA WITH
DRYLINE THROUGH GARDEN CITY IN THE THE TEXAS PANHANDLE. WATER VAPOR
LOOPS SHOWING SHORTWAVE MOVING ACROSS COLORADO. BEST MOISTURE
CONVERGENCE IS CURRENTLY OVER NORTH CENTRAL KANSAS ON ADAP.

MODELS CONSISTENT WITH MOVING A SHORTWAVE TONIGHT ACROSS NEBRASKA AND
FAR NORTHERN KANSAS. CONVERGENCE ALONG THE DRYLINE AND APPROACHING
SHORTWAVE MAY BE ENOUGH TO PRODUCE ISOLATED THUNDERSTORMS THIS
EVENING. BETTER CHANCES WILL BE IN NEBRASKA. CORFIDI VECTORS SHOW A
EAST TO SOUTHEAST MOVEMENT SO SOME STORMS COULD MIGRATE INTO
NORTHERN COUNTIES. WILL KEEP CURRENT LOW POPS GOING FOR NORTH
CENTRAL AND NORTHEAST KANSAS...NORTH OF I-70.

CAPPING TAKES HOLD OF CWA AFTER TONIGHT AS 700 MB TEMPS APPROACH 16
DEGREES CELSIUS...ALSO BETTER LIFT AND CONVERGENCE WILL BE NORTH OF
CWA.

THE HEAT WILL CONTINUE TO BUILD ACROSS THE CWA THROUGH THE PERIOD.
AFTER COORDINATION WITH SURROUNDING WFOS WILL ISSUE A HEAT ADVISORY
FOR ALL OF THE CWA THURSDAY THROUGH FRIDAY. WINDS WILL STAY UP EACH
NIGHT AND NOT ALLOW TEMPERATURES TO DROP BELOW THE MIDDLE 70S AND
MAY EVEN BE NEAR 80 FOR MOST OF THE NIGHT THURSDAY NIGHT. DAYTIME
HIGHS SHOULD APPROACH AROUND 100 IN NORTHEAST KANSAS AND AROUND 100
TO 105 IN NORTH CENTRAL.

WENT WITH WARMER FAN AND ETA NUMBERS OVER COOLER NGM/FWC.

.TOP...HEAT ADVISORY THURSDAY NORTHCENTRAL AND NORTHEAST KANSAS
       THURSDAY THROUGH FRIDAY.

WOYNICK