Severe Thunderstorm Warning 37, NWS Topeka, KS

000 
WWUS53 KTOP 211937
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
237 PM CDT THU APR 21 2005

KSC117-131-149-212030-
/O.CON.KTOP.SV.W.0037.000000T0000Z-050421T2030Z/
NEMAHA-MARSHALL-POTTAWATOMIE-
237 PM CDT THU APR 21 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 330 PM CDT FOR 
NORTHEASTERN POTTAWATOMIE...SOUTHEASTERN MARSHALL AND SOUTHWESTERN 
NEMAHA COUNTIES...

AT 236 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED 4 MILES SOUTHEAST OF LILLIS...OR ABOUT
28 MILES SOUTHEAST OF MARYSVILLE...MOVING NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
LILLIS...VERMILLION AND CORNING.

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES RAPIDLY.

LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS
STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A BUILDING NOW.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

LAT...LON 3953 9644 3944 9619 3965 9597 3976 9632

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
400 AM CDT THU APR 21 2005

.DISCUSSION...

TWO AREAS OF CONVECTION AT MIDNIGHT WERE PROGRESSING ACROSS EASTERN
KANSAS.  STORMS OVER SOUTHCENTRAL KANSAS FROM AFTERNOON HEATING WERE
WEAKENED AND DISSIPATED.  MEANWHILE STORMS FROM NORTHCENTRAL INTO
NORTHEAST KANSAS INCREASED ALONG AN EAST-WEST BOUNDARY WITH MOIST
SOUTHERLY INFLOW.

ONGOING ACTIVITY AT FORECAST TIME WILL CONTINUE TO LIFT NORTHEAST
AND WEAKEN BY MID-MORNING.  WITH BOUNDARY HOLDING NEAR THE
NEBRASKA BORDER...ANTICIPATE SCATTERED STORMS TO FIRE BY MID-DAY
ACROSS THE NORTHERN COUNTIES AND BECOME MORE NUMEROUS AND SEVERE AS
THEY DEVELOP SOUTHWARD INTO THE MOIST THETA-E AXIS WITH AFTERNOON
HEATING.

DRYLINE WILL SWEEP EAST DURING THE AFTERNOON AND EARLY EVENING
PUSHING STORMS INTO MISSOURI.  THERE WILL BE A PRECIP-FREE PERIOD
DURING THE EVENING UNTIL AFTER MIDNIGHT WHEN WRAP-AROUND MOISTURE
WITH THE UPPER LOW SWINGS SOUTH FROM NEBRASKA.  THIS WILL CREATE A
CHANCE FOR SHOWERS MOST AREAS FRIDAY MORNING BEFORE THE UPPER LOW
BEGINS TO FILL A DRIFT TO THE EAST.

CLOUDS ACROSS THE FORECAST AREA AT SUNRISE WILL BREAK SOME BY
NOON...ESPECIALLY OVER SOUTHERN PORTIONS OF THE AREA.  THIS WILL
ALLOW AFTERNOON HEATING TO PUSH TEMPERATURES INTO THE MID/UPPER
70S.  ABUNDANT MOISTURE...WARM TEMPERATURES...A SURFACE FRONT TO THE
NORTH AND OTHER OUTFLOW BOUNDARIES WILL SET THE STAGE FOR SEVERE
WEATHER THIS AFTERNOON PER SPC DISCUSSION.  HAVE INCLUDED SEVERE
WORDING IN ZONES FOR LARGE HAIL AND DAMAGING WINDS.  WILL ALSO
INCLUDE THE MENTION OF TORNADOES FOR ALL BUT THE NORTHCENTRAL
COUNTIES IN HAZARDS DISCUSSION.

NORTHWEST WINDS WILL BE GUSTY ON FRIDAY AND BRING MUCH COOLER AIR TO
THE FORECAST AREA WITH MOST HIGHS AROUND 60.  WINDS DROP OFF FRIDAY
NIGHT AS SURFACE RIDGE BEGINS TO BUILD IN FROM THE WEST AND
TEMPERATURES FALL INTO THE UPPER 30S.  THE SURFACE RIDGE WILL BE
CENTERED ACROSS THE AREA SUNDAY MORNING...AND WILL HAVE TO EVALUATE
WHETHER TEMPERATURES MIGHT BE LOWERED MORE WITH CLEAR SKIES.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...NONE.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
132 PM CDT THU APR 21 2005

KSZ008>012-020>024-026-034>040-054>056-058-059-221000-
ANDERSON-BROWN-CLAY-CLOUD-COFFEY-DICKINSON-DOUGLAS-FRANKLIN-GEARY-
JACKSON-JEFFERSON-LYON-MARSHALL-MORRIS-NEMAHA-OSAGE-OTTAWA-
POTTAWATOMIE-REPUBLIC-RILEY-SHAWNEE-WABAUNSEE-WASHINGTON-
INCLUDING THE CITIES OF...ABILENE...CLAY CENTER...CONCORDIA...
EMPORIA...HIAWATHA...JUNCTION CITY...LAWRENCE...MANHATTAN...
MARYSVILLE...OTTAWA AND TOPEKA
132 PM CDT THU APR 21 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL...NORTHEAST AND
EAST CENTRAL KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SEVERE THUNDERSTORMS ARE LIKELY ACROSS MUCH OF THE AREA THIS
AFTERNOON CONTINUING INTO THE EVENING HOURS OVER EASTERN PORTIONS OF
THE AREA.  LARGE HAIL AND DAMAGING WINDS WILL ACCOMPANY THE STRONGEST
THUNDERSTORMS WITH EVEN SOME TORNADOES POSSIBLE ESPECIALLY NORTH OF
INTERSTATE 70.

THE SEVERE WEATHER THREAT SHOULD DIMINISH RAPIDLY DURING THE
EARLY EVENING HOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS WILL AGAIN BE POSSIBLE SUNDAY NIGHT AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS WILL BE NEEDED THIS AFTERNOON AND EARLY EVENING.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.CRH.NOAA.GOV/TOP  (ALL LOWER CASE)

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1136 AM CDT THU APR 21 2005

KSZ008>012-020>024-034-212200-
BROWN-CLAY-CLOUD-JACKSON-MARSHALL-NEMAHA-OTTAWA-POTTAWATOMIE-
REPUBLIC-RILEY-WASHINGTON-
INCLUDING THE CITIES OF...CLAY CENTER...CONCORDIA...HIAWATHA...
MANHATTAN AND MARYSVILLE
1136 AM CDT THU APR 21 2005

TORNADO WATCH NUMBER 175 IS IN EFFECT UNTIL 500 PM CDT
AND INCLUDES THE FOLLOWING COUNTIES...

REPUBLIC              WASHINGTON            NEMAHA
MARSHALL              BROWN                 CLOUD
JACKSON               CLAY                  RILEY
POTTAWATOMIE          OTTAWA

SOME CITIES IN THE WATCH ARE...

MANHATTAN             CLAY CENTER           CONCORDIA
MARYSVILLE            HIAWATHA

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE.