WWUS84 KHGX 110938 SPSHOU TXZ163-164-176>179-195>200-210>214-226-227-235>238-112200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 440 AM CDT THU OCT 11 2001 ...ISOLATED AREAS OF HEAVY RAIN AND SEVERE WEATHER POSSIBLE TODAY... ...MORE SIGNIFICANT SEVERE WEATHER OUTBREAK POSSIBLE FRIDAY NIGHT... A MOIST AIRMASS IS IN PLACE OVER SOUTHEAST TEXAS TODAY. A STRONG UPPER LEVEL STORM SYSTEM AND A WEAKENING COLD FRONT MOVING SOUTH INTO THE REGION WILL COMBINE TO PRODUCE AREAS OF RAIN AND THUNDERSTORMS. SOME OF THE THUNDERSTORMS COULD PRODUCE RAINFALL RATES OF AN INCH OR TWO PER HOUR...WITH TOTALS OF 4 OR 5 INCHES POSSIBLE. BE ALERT FOR HIGH STANDING WATER IN AREAS OF HEAVY RAIN TODAY. THERE IS ALSO A SLIGHT CHANCE THAT ONE OR TWO OF THE STORMS COULD PRODUCE HAIL OR WIND GUSTS ABOVE 50 MPH. A MORE SIGNIFICANT SEVERE WEATHER OUTBREAK MAY BE ON TAP FOR FRIDAY NIGHT. A VERY STRONG UPPER LEVEL STORM SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE ACROSS THE REGION BY SATURDAY. SOUTH WINDS NEAR THE SURFACE WILL BECOME STRONGER AND TURN MORE WESTERLY WITH INCREASING ALTITUDE. THIS...COMBINED WITH STRONG INSTABILITY...WILL CAUSE SOME OF THE THUNDERSTORMS TO ROTATE...POSSIBLY PRODUCING DAMAGING WIND GUSTS AND EVEN ISOLATED TORNADOES. A LOWERING FREEZING LEVEL IN THE ATMOSPHERE WILL ALSO LEAD TO A GREATER CHANCE OF THUNDERSTORMS PRODUCING LARGE HAILSTONES. CONSIDER MAKING PREPARATIONS TODAY AND FRIDAY FOR SEVERE WEATHER FRIDAY NIGHT. MAKE SURE TO HAVE BATTERY OPERATED APPLIANCES AND FLASHLIGHTS READY IN CASE POWER IS INTERRUPTED. AND REMEMBER...THE BEST PLACE TO BE IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM OR TORNADO IS INSIDE A REINFORCED STRUCTURE AWAY FROM WINDOWS. ADDITIONAL STATEMENTS WILL BE ISSUED LATER TODAY AND ON FRIDAY CONCERNING THE POTENTIAL FOR SEVERE WEATHER. --------------------------------------------------------------------- WWUS84 KHGX 111255 SPSHOU TXZ163-164-176>179-195>200-210>214-226-227-235>238-111800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 751 AM CDT THU OCT 11 2001 ...TORNADO WATCH IN EFFECT FOR SOUTHEAST TEXAS UNTIL 100 PM... THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR SOUTHEAST TEXAS UNTIL 100 PM THIS AFTERNOON. SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP SOUTH OF A COLD FRONT THAT EXTENDS JUST SOUTH OF A LINE FROM CHILDRESS TO HONDO. THE ATMOSPHERE IS DESTABILIZING SOUTH OF THIS LINE...AND CAUSING THE THUNDERSTORMS TO INCREASE IN INTENSITY. THE FOLLOWING COUNTIES ARE INCLUDED IN THE WATCH... HOUSTON...TRINITY...POLK...MADISON...WALKER...BRAZOS...SAN JACINTO...GRIMES...BURLESON...MONTGOMERY...LIBERTY... WASHINGTON...WALLER...HARRIS...AUSTIN...COLORADO...FORT BEND...WHARTON...JACKSON...CHAMBERS...BRAZORIA...GALVESTON AND MATAGORDA. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS. ---------------------------------------------------------------------- WWUS84 KHGX 111729 SPSHOU TXZ163-164-176>179-195>200-210>214-226-227-235>238-111745- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1230 PM CDT THU OCT 11 2001 ...TORNADO WATCH 772 CANCELLED FOR SOUTHEAST TEXAS... THE THREAT FOR TORNADOES HAS ENDED ACROSS SOUTHEAST TEXAS. HOWEVER... ADDITIONAL SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE AFTERNOON. SOME STORMS SOUTH OF INTERSTATE 10 COULD PRODUCE DAMAGING WINDS OR LARGE HAIL. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS. ---------------------------------------------------------------------- WWUS84 KHGX 112053 SPSHOU TXZ163-164-176>179-195>200-210>214-226-227-235>238-121000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 350 PM CDT THU OCT 11 2001 ...SLIGHT CHANCE OF SEVERE STORMS AGAIN FRIDAY... ...SIGNIFICANT SEVERE WEATHER OUTBREAK LOOKING INCREASINGLY LIKELY FRIDAY NIGHT... THE MOIST AIRMASS IS IN PLACE OVER SOUTHEAST TEXAS WILL BE IN PLACE ONCE AGAIN ON FRIDAY. A DIFFUSE FRONTAL BOUNDARY COMBINED WITH AFTERNOON HEATING AND OUTFLOW BOUNDARIES FROM TODAYS STORMS WILL COMBINE TO PRODUCE A SLIGHT CHANCE FOR SEVERE WEATHER AGAIN ON FRIDAY. AT THIS TIME THE MAIN SEVERE WEATHER THREAT APPEARS TO BE DAMAGING WINDS AND ISOLATED TORNADOES. IN ADDITION...THUNDERSTORMS PRODUCING RAINFALL RATES OF TWO INCHES PER HOUR COULD ALSO LEAD TO MINOR STREET FLOODING. LOOK FOR AVERAGE ACCUMULATIONS OF 1 INCH WITH LOCALIZED 3 TO 4 INCH AMOUNTS POSSIBLE THROUGH FRIDAY EVENING. A MORE SIGNIFICANT SEVERE WEATHER OUTBREAK MAY BE ON TAP FOR FRIDAY NIGHT. A VERY STRONG UPPER LEVEL STORM SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE ACROSS THE REGION LATE FRIDAY NIGHT. SOUTH WINDS NEAR THE SURFACE WILL BECOME STRONGER AND TURN MORE WESTERLY WITH INCREASING ALTITUDE. THIS...COMBINED WITH STRONG INSTABILITY...WILL CAUSE SOME OF THE THUNDERSTORMS TO ROTATE...POSSIBLY PRODUCING TORNADOES AND DAMAGING WINDS. A LOWERING FREEZING LEVEL IN THE ATMOSPHERE WILL ALSO LEAD TO A GREATER CHANCE OF THUNDERSTORMS PRODUCING LARGE HAILSTONES. IT WILL BE IMPORTANT FOR RESIDENTS IN SOUTHEAST TEXAS TO MONITOR THE LATEST FORECAST FRIDAY AFTERNOON SINCE DANGEROUS THUNDERSTORMS APPEAR INCREASINGLY LIKELY FRIDAY NIGHT WHEN THE MAJORITY OF PEOPLE WILL BE SLEEPING. CONSIDER MAKING PREPARATIONS TONIGHT AND FRIDAY. MAKE SURE TO HAVE BATTERY OPERATED APPLIANCES AND FLASHLIGHTS READY IN CASE POWER IS INTERRUPTED. AND REMEMBER...THE BEST PLACE TO BE IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM OR TORNADO IS INSIDE A REINFORCED STRUCTURE AWAY FROM WINDOWS. ADDITIONAL STATEMENTS WILL BE ISSUED FRIDAY MORNING AND AGAIN FRIDAY AFTERNOON DETAILING THE LATEST DEVELOPMENTS.