A pre-frontal trough well ahead of a central Texas cold front slowed as it approached the coastal counties. This boundary became the focus for severe thunderstorms along the coast and neighboring inland counties.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HGX wrote it up.
A pre-frontal trough well ahead of a central Texas cold front slowed as it approached the coastal counties. This boundary became the focus for severe thunderstorms along the coast and neighboring inland counties.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before the first event at Mar 31, 3:11 AM CST, 1 hour 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 411 AM CDT SAT MAR 31 2007 .DISCUSSION... SEVERE WEATHER ON THE WAY. LONG LIVED SERIES OF HP SUPERCELLS TRACKING OUT OF THE HILL COUNTRY AND INTO OUR WESTERN COUNTIES AROUND 415-430 AM (COLORADO/JACKSON COUNTIES) AND BY 630 AM SHOULD BE ALONG AN ADDICKS TO RICHMOND TO PALACIOS LINE. IMPRESSIVE SPEED SHEAR IN THE LOW LEVELS WITH HELICITIES RUNNING 200+ IN THE NEAR STORM ENVIRONMENT THOUGH AS IT TRANSLATES EAST AFTER 12Z THE SHEAR DECREASES. THREATS IN THE SHORT TERM LOOK TO BE WIND/HAIL BUT CANT RULE OUT BRIEF TORNADO THREAT AS THESE PASS NORTH AND EAST OF MATAGORDA BAY. HAVE ISSUED UPDATED ZONES WITH THE TORNADO WATCH. THE SEVERE THUNDERSTORMS SHOULD BE OUT OF THE CWA BY 18Z AT THE LATEST THOUGH THE MARINE WATERS MAY BE UNDER THE GUN LONGER. HEAVY RAIN A GOOD BET WITH THESE SUPERCELLS...EWX RADAR ESTIMATES HAVE BEEN CONSISTENTLY PAINTING 2-3 PER HOUR RATES AND THAT SHOULD HOLD AS THEY MOVE INTO THE AREA...AM EXPECTING THE RATES TO POSSIBLY INCREASE AFTER 12Z AS STORMS SLOW BUT THE SMALL AREAL COVERAGE OF THE VERY INTENSE RAINS HAS LEAD TO ME TO HOLD OFF ON A FLOOD WATCH. WE MAY GET SOME SHORT LIVED STREET FLOODING BUT NOT ANTICIPATING WIDESPREAD FLOOD THREAT. PERHAPS IF THE STORMS WEAKEN AND LEAVE A BOUNDARY THAT DAYTIME HEATING COULD WORK ON BEFORE THE PACIFIC AIRMASS ARRIVES AND EXITING SHORT WAVE DEPARTS THEN PERHAPS A MORE MESOSCALE RAIN EVENT WOULD BE POSSIBLE BUT MY CONFIDENCE IN THIS OCCURRING IS LOW. GUIDANCE INDICATES THE FRONTAL BOUNDARY TO STALL NEAR THE COAST OR MORE LIKELY JUST OFFSHORE THEN RETURN NORTH ON MONDAY AS A S/W PASSES OVER THE AREA. WILL CARRY 20 POPS DURING THIS PERIOD. RETURN FLOW IN PLACE MONDAY AFTERNOON IN ADVANCE OF A FAIRLY WELL MODIFIED COLD FRONT WEDNESDAY MORNING. WILL PROBABLY GET RAIN/TSRA WITH THIS PASSAGE. TEMPS TO RUN ON THE COOL SIDE WEDNESDAY THROUGH NEXT SATURDAY. 45/39 && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 74 53 84 60 80 / 70 0 0 0 20 HOUSTON (IAH) 72 57 83 63 80 / 70 30 0 0 20 GALVESTON (GLS) 73 65 80 68 77 / 70 50 0 10 20 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...TORNADO WATCH NUMBER 98 IN EFFECT FOR AREAS GENERALLY ALONG AND SOUTH OF A BELLVILLE TO CONROE TO CLEVELAND LINE UNTIL 10 AM. GM...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 11 AM CDT THIS MORNING FOR THE FOLLOWING ZONES: GALVESTON BAY...MATAGORDA BAY... WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM...WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM...WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM. && DISCUSSION...45 MARINE/AVIATION...39
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 344 PM CDT FRI MAR 30 2007 TXZ163-164-176>179-195>200-210>214-226-227-235>238-312045- 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- 344 PM CDT FRI MAR 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. LOCALLY HEAVY RAIN AND STRONG THUNDERSTORMS POSSIBLE LATE TONIGHT INTO SATURDAY .DAY ONE...TONIGHT A VIGOROUS UPPER LEVEL STORM SYSTEM WILL APPROACH SOUTHEAST TEXAS OVERNIGHT. THUNDERSTORMS ARE EXPECTED TO REDEVELOP OVER CENTRAL TEXAS AFTER MIDNIGHT AND MOVE EAST. THE BEST CHANCE OF SEVERE WEATHER WILL REMAIN NORTHWEST OF A COLUMBUS TO CROCKETT LINE OVERNIGHT. THE PRIMARY SEVERE WEATHER HAZARD WILL BE STRAIGHT LINE DAMAGING WINDS AND ISOLATED TORNADOES. THE BEST CHANCE FOR HAZARDOUS WEATHER WILL OCCUR AFTER 2 AM. HEAVY RAIN WILL ALSO BE POSSIBLE WITH SOME 1 TO 2 INCH TOTALS POSSIBLE OVERNIGHT WEST OF A COLUMBUS TO CROCKETT LINE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE FIRST HALF OF SATURDAY WILL REMAIN STORMY AS A LINEAR STORM COMPLEX MOVES ACROSS SOUTHEAST TEXAS. THE PRIMARY SEVERE WEATHER HAZARD WILL BE DAMAGING WINDS AND ISOLATED TORNADOES. THE BEST CHANCE FOR SEVERE WEATHER WILL OCCUR BEFORE 2 PM. HEAVY RAIN WILL AGAIN BE POSSIBLE WITH WIDESPREAD RAINFALL TOTALS OF 1 TO 2 INCHES AND ISOLATED TOTALS BETWEEN 3 AND 5 INCHES POSSIBLE. FAVORABLE UPPER LEVEL WINDS AND DEEP MOISTURE FAVOR ADDITIONAL THUNDERSTORMS ON MONDAY. SOME OF THE RAIN COULD AGAIN BE LOCALLY HEAVY. AT THIS TIME...RAINFALL TOTALS ARE EXPECTED TO AVERAGE BETWEEN 1 AND 2 INCHES. A STRONG COLD FRONT IS EXPECTED TO CROSS THE COASTAL WATERS ON TUESDAY NIGHT. A RAPID WIND SHIFT AND ANOTHER ROUND OF THUNDERSTORMS WILL ACCOMPANY THE FRONT. .SPOTTER INFORMATION STATEMENT... STORM SPOTTERS AND EMERGENCY MANAGEMENT SHOULD ANTICIPATE ACTIVATION LATER TONIGHT AND SATURDAY.
The Austin/San Antonio radar (KEWX), 141 km away, was scanning. The volume nearest the first event began at 10:28 UTC.
6 thunderstorm wind, 4 hail, 1 lightning. Local standard time, as filed.
A couple of mid-sized oak trees down.
Nickel-size hail.
Nickel-size hail.
Tree down on a home.
Tree down.
Tree down.
Penny-size hail.
Penny-size hail.
Occurred in Mission Bend area.
Damage in and around the Houston area from this squall line included trees down (several on vehicles), fences damaged and extensive roof damage to several area businesses and apartments.
Lightning strike started a fire that caused moderate damage to a home.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2007Every state in 2007This day in weather historyWarnings in Texas, March 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 14651, 14652, 14653, 18465, 14654, 14655, 14656, 14657, 14658, 14659, 20468.