Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 27, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at May 20, 2001, 5:51 PM CDT for Bee County, Live Oak County, Texas. It was in force for 54 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
- May 20, 2001, 5:51 PM CDT (22:51 UTC)
- Expired
- May 20, 2001, 6:45 PM CDT
- In force
- 54 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties
Counties Bee County, TX, Live Oak County, TX
The radar
The Corpus Christi radar (KCRP), 79 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 93 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
- 195 J/kg
- Mixed-layer CIN
- -489 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 May 20, 2:25 PM CDT, 3 hours 26 minutes earlier.
Area forecast discussion, May 20, 2:25 PM CDT, 3 hours 26 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 225 PM CDT SUN MAY 20 2001 SHORT TERM...MSAS REVEALS A COLD FRONT MOVG INTO THE NRN ROCKIES/NRN PLAINS THIS AFTN. THIS FRONT IS ASSOCIATED WITH AN UPPER TROUGH/LOW WHICH WL BE MOVG EWD ACRS THE PLAINS MONDAY. AS THIS UPPER DISTURBANCE MOVES EWD...THE SURFACE FRONT WL MOVE INTO THE CWA BY LATE MONDAY. AN UPPER JET WILL AFFECT THE REGION THROUGH TUESDAY. THUS...EXPECT SURFACE AND UPPER FORCING TO CONTRIBUTE TO CONVECTION MONDAY/MONDAY NIGHT. HWR...INSTABILITY WL LIKELY BE THE LIMITING FACTOR... NOTWITHSTANDING THE FACT THAT STG VERTICAL SHEAR...WHICH IS LIKELY MON IN ADVANCE OF THE FRONT...CAN OVERCOME BUOYANCY. IF THUNDERSTORMS FORM...THEY COULD BECOME STRONG...HWR LEAVE OUT TSTM SEVERITY FOR NOW OWING TO STATIC STABILITY CONCERNS. EXTENDED...AFTER FROPA LATE MONDAY/EARLY TUESDAY...SIGNIFICANT DRYING IS EXPECTED. THE MRF SOLN...ALTHOUGH ENSEMBLES DO NOT ADD TOO MUCH CREDENCE TO IT...PROGS THE FOREGOING UPPER LOW TO REMAIN QUASI-STATIONARY AND CONTRIBUTE TO A SECONDARY SURGE/FRONT FRIDAY. DO NOT EXPECT THIS FRONT TO TRIGGER PCPN AS MSTR WL PROBABLY BE INSUFFICIENT. MARINE...WINDS OVER THE BAYS WILL CONTINUE AROUND 20 KNOTS WITH HIGHER GUSTS INTO THE EVENING HOURS...THUS WILL MAINTAIN SCA OVER THE BAYS THROUGH THE EVENING. OFFSHORE BUOYS WERE REPORTING WINDS IN THE 15 TO 20 KNOT RANGE AND AM EXPECTING THE GRADIENT TO STRENGTHEN OVERNIGHT...THUS WILL GO SCA OFFSHORE AS WELL. GRADIENT RELAXES ON MON...MORE SO OVER THE BAYS...AS A CF APPROACHES CENT TX. THE CF...ALONG WITH SHRAS AND TSRAS...IS PROGD TO MOVE OFFSHORE OVERNIGHT MON NIGHT WITH A STRONG NORTH WIND DEVELOPING IN ITS WAKE. WILL GO WITH A MWS ON THE UPCOMING LATE SEASON CF. ONSHORE FLOW QUICKLY REDEVELOPS WED AND CONTS THROUGH THUR...AS THE SFC HIGH SHIFTS EAST. MRF PROGS A NLY FLOW ALOFT TO CONT THRU THE WEEK...ALLOWING ANOTHER SURGE OF HIGH PRESS TO SINK SWD. WINDS BACK TO THE NE...BUT REMAINING FAIRLY WEAK. CRP EB 075/088 068/079 064 87034 VCT EB 074/087 059/077 058 87045 LRD EB 075/089 067/079 065 87023 .CRP...SCA GMZ230-235-250-255-270-275. 87 (SYNOPTIC) 81 (MESO)
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 4:55 PM CDT | Severe Thunderstorm Warning | CRP | Live Oak, McMullen | 65 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.