Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 90, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Jun 21, 1997, 7:27 AM CDT for La Salle County, McMullen County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1997, 7:27 AM CDT (12:27 UTC)
- Expired
- Jun 21, 1997, 8:30 AM CDT
- In force
- 63 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties
Counties La Salle County, TX, McMullen County, TX
The radar
The Corpus Christi radar (KCRP), 144 km from the middle of the area, began a volume at 12:26 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.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 0.5 hours before the alert went out and 162 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
- 3868 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 2:12 AM CDT, 5 hours 15 minutes earlier.
Area forecast discussion, Jun 21, 2:12 AM CDT, 5 hours 15 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 215 AM CDT SAT JUN 21 1997 SIGNIFICANT RAINFALL EVENT TAKING SHAPE AND HAS BEEN ADVERTISED IN MODELS LAST 3 RUNS. AFTR COORD WITH EWX WILL ISSUE A FFA FOR ERN 2/3RD OF CWA INCLUDING DUVAL AND MCMULLEN CNTYS AND POINTS EWD. UPPER LOW WILL DEEPEN OVER S TX WITH COOL POOL NOTED ALOFT. NUMEROUS VORT LOBES WILL ROUND THE BASE OF THE TROF FROM NW TX AND MX. 00Z ETA RUN SHOWS LARGE SCALE LIFT FROM H85-700MB BENEITH STG DIFLUENCE ALOFT. 30KT LLJ WILL STRENGTHEN TO 45KTS BY THIS EVENING PROVIDING PLENTY OF INFLOW INTO VERY MOIST AND UNSTABLE ATMOS. MOST DYNAMICS ARE FOCUSED SOUTH OF HDO-CLL LINE TODAY WHERE 2-5 INCHES OF RAIN MAY FALL. FLASH FLOOD GUIDANCE IS LOW...BELOW 2 INCHES IN EACH COUNTY. THEREFORE A WATCH WILL BE ISSUED THIS MORNING PERSISTING THROUGH TNGT. SCA'S WILL LIKELY BE NEEDED FOR THE COASTAL WATERS AND WILL BE INCLUDED IN THE BAYS. CLOUDS AND PRECIP WILL KEEP LARGE SCALE WINDS FROM MIXING TO SFC OVER LAND THEREFORE WILL NOT ISSUE A WIND ADVISORY. S WINDS 15-25 MPH AND GUSTY CRP-VCT TDY. SE WINDS 15-20 MPH LRD. MOSTLY CLOUDY TODAY. UPPER LOW SHIFTS SLGTLY TO THE NW TNGT WHILE DISTURBANCES CONTINUE TO MOVE INTO S TX IN SUBTROP FLOW. CONVECTIVE BNDRY ALG THE COAST WILL PROVIDE THE FOCUS FOR PRECIP INTO SUNDAY. 45KT LOW LVL JET WILL KEEP PWS NEAR 2.00 INCHES. THEREFORE HVY RAIN AND FFA MAY BE EXTENDED TO SUNDAY. WILL KEEP TEMPS ON THE LOW SIDE DUE TO CLOUDS AND PRECIP. PRELIMS... CRP TT 088/075 088/076 6463 (LCLY HVY RAIN THRU SUNDAY) NGP TT 087/076 087/076 VCT TT 087/074 086/074 7473 (LCLY HVY RAIN THRU SUNDAY) LRD EE 093/075 095/076 4333 (LCLY HVY RAIN THIS MORNING) JM...075
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 6:05 AM CDT | Flash Flood Warning | CRP | La Salle | 115 min |
| Jun 21, 8:00 AM CDT | Flash Flood Warning | CRP | McMullen | 2 hr |
| Jun 21, 3:15 PM CDT | Flash Flood Warning | CRP | Goliad, Victoria | 3 hr |
| Jun 21, 3:50 PM CDT | Tornado Warning | CRP | Bee | 25 min |
| Jun 21, 4:52 PM CDT | Flash Flood Warning | CRP | Live Oak | 3 hr |
| Jun 21, 5:36 PM CDT | Severe Thunderstorm Warning | CRP | Live Oak, McMullen | 69 min |
| Jun 21, 6:40 PM CDT | Tornado Warning | CRP | Live Oak | 50 min |
| Jun 21, 6:47 PM CDT | Flash Flood Warning | CRP | McMullen | 58 min |
| Jun 21, 6:47 PM CDT | Severe Thunderstorm Warning | CRP | McMullen | 58 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997
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.