Alert archive / Texas / Tornado Watches in 1997
Tornado Watch 83
The Storm Prediction Center issued this tornado watch at Mar 1, 1997, 11:00 PM CST for 20 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 1997, 11:00 PM CST (05:00 UTC)
- Expired
- Mar 2, 1997, 4:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Aransas County, TX, Bee County, TX, Brazoria County, TX, Calhoun County, TX, Duval County, TX, Fort Bend County, TX, Goliad County, TX, Jackson County, TX, Jim Hogg County, TX, Jim Wells County, TX, Karnes County, TX, Kleberg County, TX, Live Oak County, TX, Matagorda County, TX, McMullen County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wharton County, TX
The radar
The Corpus Christi radar (KCRP), 66 km from the middle of the area, began a volume at 05:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 11:20 PM CST | Tornado Warning | CRP | McMullen | 40 min |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 5.0 hours before the alert went out and 72 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
- 1612 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -108 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- -0.5
- Supercell composite
- -4.9
The text
As transmitted, in the capitals the NWS used until 2016.
455 WWUS9 KMKC 020432 SEL3 MKC WW 020432 TXZ000-021000- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 83 STORM PREDICTION CENTER NORMAN OK 1032 PM CST SAT MAR 1 1997 A...THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PARTS OF SOUTH TEXAS AND THE MIDDLE TEXAS COAST AND ADJACENT COASTAL WATERS EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING UNTIL 400 AM CST. TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST OF ALICE TEXAS TO 55 MILES EAST NORTHEAST OF PALACIOS TEXAS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. $$ C...TORNADOES AND A FEW SVR TSTMS WITH HAIL SFC AND ALF TO 2 INCHES. EXTRM TURBC AND SFC WIND GUSTS TO 70 KNOTS. A FEW CBS WITH MAX TOPS TO 450. MEAN WIND VECTOR 23040. D...STEEP LO- TO MIDLVL LAPSE RATES...WITH INCRG MIDLVL CD ADVTN AND LOLVL SELY FLOW OF GULF AIR /DWPTS NR 70/ WL BE FVRBL FOR SUPERCELL DVLPMT TNGT...WHERE MIDLVL SWLY FLOW WL RMN AOA 60 KTS. E...OTR TSTMS... CONT..WW 80..WW 81..WW 82.. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 6:00 PM CST | Tornado Watch | SPC | Bowie, Camp, Cass, Franklin, Gregg, Harrison and 6 more | 3 hr |
| Mar 1, 10:15 PM CST | Tornado Watch | SPC | Atascosa, Austin, Bastrop, Bexar, Blanco, Brazos and 30 more | 6 hr |
| Mar 2, 9:45 AM CST | Tornado Watch | SPC | Angelina, Cherokee, Gregg, Hardin, Jasper, Jefferson and 10 more | 6 hr |
Nearby
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; radar from the NEXRAD Level II archive.