Severe Thunderstorm Warning 27, NWS Houston/Galveston, TX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
430 AM CDT FRI APR 21 2006

.DISCUSSION...
UPDATED...SPC HAS ISSUED SEVERE THUNDERSTORM WATCH 231 IN EFFECT
THROUGH 14Z. SQUALL LINE GETTING ITS ACT TOGETHER. MAIN THRUST OF
THE LINE WILL BE E-SE TOWARD THE SOUTHERN HALF OF THE CWA. NEW ZONES
OUT SHORTLY. 43

ANOTHER CONVECTIVE COMPLEX HEADING TOWARD THE REGION. AT 08Z...A
COLD FRONT WAS LOCATED ALONG A SHV TO ACT TO JCT LINE. THE FRONT
IS PUSHING VERY SLOWLY SOUTH. A PRE-FRONTAL TROUGH OR OUTFLOW
BOUNDARY EXTENDS FROM NEAR CALDWELL TO COTULLA. IT APPEARS THAT
THIS MORNINGS STORMS WILL FIRE ON THE OUTFLOW BOUNDARY AND A FEW
STORMS COULD DEVELOP ON THE ACTUAL FRONT THIS AFTERNOON...
ESPECIALLY TOWARD THE COAST. GFS DRIES THINGS OUT RATHER QUICKLY THIS MORNING AND THINK
IT MIGHT BE A LITTLE TOO AGGRESSIVE WITH THE DRYING TREND. 250 MB
WINDS REMAIN DIVERGENT THROUGH 18Z AND A SPEED MAX WILL APPROACH
THE AREA FROM THE NORTHWEST. PWS WILL REMAIN ABOVE 1.5 INCHES
ALONG THE COAST...SO WILL MAINTAIN HIGHEST POPS NEAR THE COAST.
THE UPPER FLOW SHOULD BECOME CONFLUENT BY 21Z AND ANY LINGERING
PRECIP SHOULD END QUICKLY. WILL CARRY HIGH POPS FOR THIS MORNING
ALL AREAS AND MAINTAIN HIGH POPS FOR THE COAST INTO THIS
AFTERNOON. STILL ENOUGH INSTABILITY PRESENT...ESPECIALLY OVER THE
SOUTHERN ZONES TO GET AN ISOLATED SEVERE REPORT. WILL EVALUATE
JUST BEFORE PRESS TIME AND DECIDE ON ADDING SEVERE WORDING TO THE
ZONES.

THE COOL FRONT WORKING ACROSS THE REGION WILL YIELD COOLER
OVERNIGHT TEMPS BUT DAYTIME HIGHS SAT/SUN WILL STILL BE ON THE
WARM SIDE UNDER SUNNY/PT SUNNY SKIES.

NEXT WEEK IS LOOKING WETTER. A COLD FRONT IS EXPECTED TO DROP INTO
TEXAS AND STALL ALONG THE UPPER TEXAS COAST. AN UPPER LEVEL LOW
WILL MOVE INTO THE 4 CORNERS REGION WITH THE UPPER FLOW OVER TEXAS
BECOMING SOUTHWEST. THINK RAIN CHANCES WILL BEGIN TUES AND PERSIST
THROUGH THE END OF THE WEEK. 43

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 83 60 87 61 87 / 20 0 0 0 0
HOUSTON (IAH)         84 60 87 63 87 / 60 0 0 0 0
GALVESTON (GLS)       80 69 82 69 82 / 60 0 0 0 0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
517 AM CDT FRI APR 21 2006

TXZ163-164-176>179-195>200-210>214-226-227-235>238-221030-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
517 AM CDT FRI APR 21 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

...SEVERE WEATHER POSSIBLE THIS MORNING MAINLY ALONG AND SOUTH OF
I-10...

.DAY ONE...TODAY AND TONIGHT
A SQUALL LINE WILL RACE ACROSS SOUTHEAST TEXAS THIS MORNING. THE
GREATEST THREAT FOR SEVERE WEATHER WILL BE SOUTH OF I-10. THE
PRIMARY SEVERE WEATHER HAZARD WILL BE GUSTY WINDS. A WEAK COOL
FRONT WILL APPROACH THE COAST THIS AFTERNOON AND ADDITIONAL
THUNDERSTORMS ARE POSSIBLE ALONG THE COAST THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
STORM SPOTTERS AND EMERGENCY MANAGERS SHOULD PREPARE FOR
ACTIVATION THIS MORNING.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
546 AM CDT FRI APR 21 2006

TXZ177-211200-
WALKER-
INCLUDING THE CITY OF...HUNTSVILLE
546 AM CDT FRI APR 21 2006

...STRONG THUNDERSTORM MOVING ACROSS WALKER COUNTY...

AT 540 AM CDT STRONG THUNDERSTORMS MOVING EAST AT 45 MPH WERE
LOCATED ACROSS MOST OF THE NORTHERN HALF OF WALKER COUNTY. THESE
STORMS WERE PRODUCING STRONG WINDS AND SMALL HAIL. AT 533 AM
CDT...A TRAINED SPOTTER REPORTED ONE- HALF INCH HAIL WAS COVERING
THE GROUND IN HUNTSVILLE.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS
CONCERNING THIS WEATHER SITUATION.