Alert archive / Texas / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 59
The Storm Prediction Center issued this severe thunderstorm watch at Mar 30, 2002, 3:45 PM CST for 14 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2002, 3:45 PM CST (21:45 UTC)
- Expired
- Mar 30, 2002, 9:00 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Aransas County, TX, Austin County, TX, Brazoria County, TX, Calhoun County, TX, Colorado County, TX, Fort Bend County, TX, Harris County, TX, Jackson County, TX, Matagorda County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Waller County, TX, Wharton County, TX
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 5:01 PM CST | Severe Thunderstorm Warning | HGX | Fort Bend, Wharton | 44 min |
| Mar 30, 5:02 PM CST | Severe Thunderstorm Warning | CRP | Victoria | 43 min |
| Mar 30, 5:23 PM CST | Tornado Warning | HGX | Fort Bend, Wharton | 37 min |
| Mar 30, 5:25 PM CST | Severe Thunderstorm Warning | HGX | Jackson | 35 min |
| Mar 30, 5:53 PM CST | Severe Thunderstorm Warning | HGX | Jackson, Wharton | 37 min |
| Mar 30, 5:54 PM CST | Tornado Warning | HGX | Fort Bend, Harris | 36 min |
| Mar 30, 6:04 PM CST | Tornado Warning | HGX | Matagorda, Wharton | 41 min |
| Mar 30, 6:31 PM CST | Severe Thunderstorm Warning | HGX | Harris | 59 min |
| Mar 30, 6:48 PM CST | Tornado Warning | HGX | Brazoria, Fort Bend, Matagorda | 57 min |
| Mar 30, 7:23 PM CST | Severe Thunderstorm Warning | HGX | Harris, Liberty | 37 min |
| Mar 30, 7:47 PM CST | Tornado Warning | HGX | Chambers, Galveston, Harris | 43 min |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 9.8 hours before the alert went out and 149 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2462 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 302133 SEL9 SPC WW 302128 TXZ000-CWZ000-310300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 59 STORM PREDICTION CENTER NORMAN OK 328 PM CST SAT MAR 30 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF MIDDLE AND UPPER TEXAS COASTAL PLAIN ADJACENT COASTAL WATERS EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 900 PM CST. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 55 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES SOUTH OF VICTORIA TEXAS TO 35 MILES NORTH OF HOUSTON TEXAS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION... CONTINUE...WW 57...WW 58... DISCUSSION...A BROKEN LINE OF STRONG/SEVERE STORMS IS DEVELOPING ALONG THE DRYLINE FROM S OF CLL TO JUST N OF CRP. EXPECT STORMS TO INCREASE IN COVERAGE AND SPREAD EWD TOWARD THE HOU AREA THE NEXT FEW HOURS AS THE DRYLINE MOVES EWD. THOUGH WIND PROFILES ARE SOMEWHAT UNIDIRECTIONAL E OF THE DRYLINE...DEEP LAYER SPEED SHEAR AND INSTABILITY WILL BE SUFFICIENT TO SUPPORT LARGE HAIL AND ISOLATED DAMAGING GUSTS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 26030. ...THOMPSON 300,0942 275,0960 275,0974 300,0961 WWUS20 KWNS 302133 SEL9 SPC WW 302128 TXZ000-CWZ000-310300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 59 STORM PREDICTION CENTER NORMAN OK 328 PM CST SAT MAR 30 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF MIDDLE AND UPPER TEXAS COASTAL PLAIN ADJACENT COASTAL WATERS EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 900 PM CST. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 55 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES SOUTH OF VICTORIA TEXAS TO 35 MILES NORTH OF HOUSTON TEXAS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION... CONTINUE...WW 57...WW 58... DISCUSSION...A BROKEN LINE OF STRONG/SEVERE STORMS IS DEVELOPING ALONG THE DRYLINE FROM S OF CLL TO JUST N OF CRP. EXPECT STORMS TO INCREASE IN COVERAGE AND SPREAD EWD TOWARD THE HOU AREA THE NEXT FEW HOURS AS THE DRYLINE MOVES EWD. THOUGH WIND PROFILES ARE SOMEWHAT UNIDIRECTIONAL E OF THE DRYLINE...DEEP LAYER SPEED SHEAR AND INSTABILITY WILL BE SUFFICIENT TO SUPPORT LARGE HAIL AND ISOLATED DAMAGING GUSTS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 26030. ...THOMPSON 300,0942 275,0960 275,0974 300,0961
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:30 PM CST | Severe Thunderstorm Watch | SPC | Borden, Coke, Crockett, Fisher, Glasscock, Howard and 7 more | 6 hr |
| Mar 29, 11:30 PM CST | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Collin, Comanche and 25 more | 6 hr |
| Mar 30, 3:00 AM CST | Severe Thunderstorm Watch | SPC | Anderson, Bell, Bosque, Bowie, Camp, Collin and 39 more | 5 hr |
| Mar 30, 5:30 AM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bexar, Brown, Callahan, Coke and 24 more | 6 hr |
| Mar 30, 12:30 PM CST | Tornado Watch | SPC | Angelina, Brazos, Burleson, Falls, Grimes, Hardin and 18 more | 6 hr |
| Mar 30, 1:00 PM CST | Tornado Watch | SPC | Anderson, Bosque, Camp, Cherokee, Comanche, Dallas and 28 more | 5 hr |
| Mar 30, 5:30 PM CST | Tornado Watch | SPC | Anderson, Angelina, Cherokee, Gregg, Grimes, Hardin and 22 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2002Every severe thunderstorm watch in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.