Alert archive / Texas / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 55
The Storm Prediction Center issued this severe thunderstorm watch at Mar 30, 2002, 3:00 AM CST for Little River County, Arkansas; 45 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2002, 3:00 AM CST (09:00 UTC)
- Expired
- Mar 30, 2002, 8:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Little River County, AR, Anderson County, TX, Bell County, TX, Bosque County, TX, Bowie County, TX, Camp County, TX, Collin County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Mills County, TX, Morris County, TX, Navarro County, TX, Parker County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, San Saba County, TX, Smith County, TX, Somervell County, TX, Tarrant County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX
Warnings issued inside it
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 3:35 AM CST | Severe Thunderstorm Warning | SHV | Red River | 55 min |
| Mar 30, 5:29 AM CST | Flash Flood Warning | SHV | Red River | 6 hr |
| Mar 30, 6:53 AM CST | Flash Flood Warning | SHV | Howard, Little River, Sevier | 6 hr |
| Mar 30, 6:54 AM CST | Flash Flood Warning | SHV | Howard, Little River, Sevier | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 9.0 hours before the alert went out and 83 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
- 3168 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 300851 SEL5 SPC WW 300842 TXZ000-301400- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 55 STORM PREDICTION CENTER NORMAN OK 242 AM CST SAT MAR 30 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL...NORTHERN AND EASTERN TEXAS EFFECTIVE THIS SATURDAY MORNING FROM 300 AM UNTIL 800 AM CST. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTHWEST OF TEMPLE TEXAS TO 10 MILES NORTH NORTHWEST OF PARIS 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...THIS SEVERE THUNDERSTORM WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 53. WATCH NUMBER 53 WILL NOT BE IN EFFECT AFTER 300 AM CST. CONTINUE...WW 54... DISCUSSION...SCATTERED SUPERCELLS EXPECTED TO PERSIST INVOF STALLED FRONT OVER WW REGION AS APPARENT AXIS OF ASCENT EXTENDING FROM E OF JCT TO NEAR DFW CONTINUES ENEWD. EXISTING STORMS...MOST OF WHICH HAVE BEEN SLIGHTLY ELEVATED N AND W OF BOUNDARY...MAY BECOME SURFACE-BASED AS THEY CONTINUE TO TRACK TO RIGHT OF MEAN WIND. 35 KT SSWLY LOW LEVEL JET FORECAST OVER NE TX AT 12Z WILL MAINTAIN RICH MOISTURE INFLOW TO REGION. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25035. ...CORFIDI 334,0935 305,0960 305,0990 334,0970
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 8:00 PM CST | Severe Thunderstorm Watch | SPC | Lee | 5 hr |
| 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, 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, 3:45 PM CST | Severe Thunderstorm Watch | SPC | Aransas, Austin, Brazoria, Calhoun, Colorado, Fort Bend and 8 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, 2002Severe Thunderstorm Watches in Arkansas, 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.