Isolated to widely scattered thunderstorms formed within a humid and unstable air mass. One of these storms produced a weak tornado in Texas City that caused minimal damage.
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.
Isolated to widely scattered thunderstorms formed within a humid and unstable air mass. One of these storms produced a weak tornado in Texas City that caused minimal damage.
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 Jul 21, 9:23 AM CST, 3 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1023 AM CDT MON JUL 21 2014 .UPDATE... A HUMID START TO THE DAY ACROSS SOUTHEAST TEXAS WITH DEWPOINTS IN THE MID TO UPPER 70S AREAWIDE. SURFACE OBS AND VISIBLE SATELLITE POINT TO A WEAK SURFACE BOUNDARY ACROSS OUR NORTHEASTERN BORDER STRETCHING FROM NEAR LAKE CHARLES NORTHWESTWARD TOWARD CROCKETT AND CORSICANA. A FEW SHOWERS ARE ONGOING ACROSS THE COASTAL WATERS THIS MORNING AND WE MAY SEE DEVELOPMENT AGAIN THIS AFTERNOON ACROSS THE COASTAL COUNTIES. OF GREATER CONCERN TODAY WILL BE THE HIGH HEAT INDEX VALUES. GIVEN THE RICH LOW LEVEL MOISTURE ACROSS THE REGION DEWPOINTS WILL BE SLOW TO MIX OUT...ALLOWING HEAT INDEX VALUES TO RANGE BETWEEN 105 AND 110 DEGREES FOR AREAS ALONG AND SOUTH OF THE US 59/I 10 CORRIDOR THIS AFTERNOON. PERSONS WITH OUTDOOR PLANS SHOULD DRINK PLENTY OF WATER AND TAKE PRECAUTIONS AGAINST HEAT RELATED INJURIES. 38 && .MARINE... A FEW SHOWERS OVER THE EASTERN WATERS SHOWING SIGNS OF WEAKENING BUT WITH DEVELOPMENT NEAR HIGH ISLAND. EXPECT THE WARM FRONT FROM AROUND BPT TO LFK TO LIFT NORTH AND BECOME MORE DIFFUSE. SHOWERS SHOULD COME TO AN END BY AROUND NOON OVER THE GULF WATERS AND LIGHT SOUTHERLY FLOW DEVELOP AT 5 TO 10 KNOTS. 45 && .AVIATION... FOG AND LOW CIGS HAVE DISSIPATED AND CU FIELD DEVELOPING ACROSS SETX SOUTH OF THE WARM FRONT. WARM FRONT APPEARS TO BE WASHING OUT AND LIFTING NORTHEAST SO THAT FOCUS CAN MOST LIKELY BE REMOVED FROM THE POSSIBILITY OF RAIN. 700MB TEMPS ARE QUITE WARM AT 10-12C AND 850MB TEMPS 19-20C SO RAIN CHANCES LOOK ISOLATED AT BEST. SOME PATCHY MVFR CIGS/VIS POSSIBLE TONIGHT MAINLY CXO NORTHWARD. 45 && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 97 76 98 75 97 / 10 10 10 10 20 HOUSTON (IAH) 95 77 95 77 95 / 20 10 10 10 30 GALVESTON (GLS) 91 81 91 81 91 / 20 10 20 20 20 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && DISCUSSION...38 AVIATION/MARINE...45
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 505 AM CDT MON JUL 21 2014 TXZ163-164-176>179-195>200-210>214-226-227-235>238-221015- 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- 505 AM CDT MON JUL 21 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT VERY WARM TEMPERATURES COUPLED WITH HIGH HUMIDITY LEVELS WILL PRODUCE DANGEROUS HEAT INDEX VALUES. ALTHOUGH THE ACTUAL TEMPERATURE WILL WARM INTO THE MID 90S TODAY...THE HUMIDITY COMBINED WITH THE TEMPERATURE WILL MAKE IT FEEL LIKE IT IS BETWEEN 102 AND 108 DEGREES. THERE WILL BE SOME AREAS NEAR THE COAST... PRIMARILY FROM EDNA TO RICHMOND AND SOUTH TOWARD THE COAST... WHERE THE HEAT INDEX VALUES WILL APPROACH 110 DEGREES TODAY. IF OUTDOORS TODAY...PLEASE USE CAUTION AND AVOID STRENUOUS ACTIVITY IF POSSIBLE. FIND AIR CONDITIONING TO COOL OFF DURING PEAK HEATING AND WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING. STAY HYDRATED BY DRINKING PLENTY OF WATER. THIS SUMMER HAS BEEN RELATIVELY COOL BY TEXAS STANDARDS AND THIS BURGEONING HEAT WAVE COULD COME AS A BIT OF A SHOCK. PLEASE TAKE PRECAUTIONS TO AVOID HEAT STRESS. A FEW SHOWERS WILL BE POSSIBLE LATE THIS AFTERNOON. IF SHOWERS DO DEVELOP...THEY SHOULD HELP TO COOL TEMPERATURES ALTHOUGH THEY WILL DO LITTLE TO LOWER THE HUMIDITY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY VERY WARM TEMPERATURES ARE EXPECTED FOR MUCH OF THE WEEK AHEAD. HIGH TEMPERATURES WILL REMAIN IN THE MID 90S THROUGH THURSDAY AND THEN WARM INTO THE UPPER 90S BY THE WEEKEND AND POSSIBLY 100 DEGREE BY NEXT MONDAY. HEAT INDEX VALUES WILL RANGE FROM 102 TO 109 DEGREE FOR MUCH OF THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1254 PM CDT MON JUL 21 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1235 PM FUNNEL CLOUD TEXAS CITY 29.41N 94.96W
07/21/2014 GALVESTON TX TRAINED SPOTTER
1243 PM TORNADO TEXAS CITY 29.41N 94.96W
07/21/2014 GALVESTON TX LAW ENFORCEMENT
TORNADO BRIEFLY TOUCHED DOWN NEAR THE MARATHON OIL
REFINERY IN TEXAS CITY BEFORE LIFTING INTO THE CLOUDS.
&&
EVENT NUMBER HGX1400159 HGX1400160
PKSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 108 PM CDT MON JUL 21 2014 TXZ213-214-235>238-212100- HARRIS-CHAMBERS-JACKSON-MATAGORDA-BRAZORIA-GALVESTON- INCLUDING THE CITIES OF...HOUSTON...PASADENA...KATY...TOMBALL... HUMBLE...WINNIE...MONT BELVIEU...ANAHUAC...EDNA...BAY CITY... PALACIOS...PEARLAND...LAKE JACKSON...ALVIN...ANGLETON... FREEPORT...LEAGUE CITY...TEXAS CITY...FRIENDSWOOD...GALVESTON 108 PM CDT MON JUL 21 2014 ...BRIEF FUNNEL CLOUDS POSSIBLE THIS AFTERNOON... RICH MOISTURE ALONG THE COAST WILL BE SUPPORTIVE FOR THE DEVELOPMENT OF BRIEF FUNNEL CLOUDS WITH ANY SHOWERS OR THUNDERSTORMS THAT DEVELOP TODAY. THESE COULD BRIEFLY TOUCH DOWN AS EITHER A WEAK TORNADO OR OFFSHORE AS A WATERSPOUT. PERSONS WITH BEACH OR MARITIME INTERESTS NEED TO MONITOR THE SKY...RADAR...AND FUTURE WEATHER REPORTS AND BE ALERT FOR ANY FUNNEL DEVELOPMENT. REPORT ANY OCCURRENCES TO LOCAL LAW ENFORCEMENT...BEACH PATROL...OR THE NATIONAL WEATHER SERVICE.
The Houston radar (KHGX), 20 km away, was scanning. The volume nearest the first event began at 18:33 UTC.
1 tornado. Local standard time, as filed.
An EF0 tornado briefly touched down at an oil refinery. There was minimal damage to one of the buildings, and one vehicle's window was shattered.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2014Every state in 2014This day in weather historyThe tornado archive for Texas, 2014Warnings in Texas, July 2014
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: 533032.