Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 12, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 1, 2000, 8:03 PM CST for Webb County, Texas. It was in force for 57 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Apr 1, 2000, 8:03 PM CST (02:03 UTC)
- Expired
- Apr 1, 2000, 9:00 PM CST
- In force
- 57 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Webb County, TX
The radar
The Corpus Christi radar (KCRP), 181 km from the middle of the area, began a volume at 02:02 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 1, 8:35 PM CST | Hail 2.5 | Laredo, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 1, 8:00 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 2.1 hours before the alert went out and 197 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
- 2670 J/kg
- Mixed-layer CIN
- -223 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
033 WUUS54 KCRP 020205 SVRCRP TXC479-020300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 803 PM CST SAT APR 1 2000 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEBB COUNTY IN TEXAS * UNTIL 900 PM CST * AT 800 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 17 MILES SOUTHWEST OF LAREDO...MOVING EAST AT 60 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR LAREDO AROUND 810 PM CST... NEAR AGUILARES AROUND 830 PM CST... 6 MILES NORTH OF OILTON AROUND 840 PM CST... THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING... HAIL UP TO THE SIZE OF QUARTERS... WINDS UP TO 60 MILES AN HOUR... THIS IS A DANGEROUS STORM. LAT...LON 2778 9965 2733 9946 2735 9888 2796 9907
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 Apr 1, 7:30 PM CST, 33 minutes earlier.
Area forecast discussion, Apr 1, 7:30 PM CST, 33 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 730 PM CST SAT APR 1 2000 DISCUSSION...PULSE CONVECTION CONTINUES TO DEVELOP ACROSS MEXICO TO THE WEST/SOUTHWEST OF WEBB COUNTY DURING THE PAST 3 HOURS IN AN AREA WHERE LIFTED INDICES WERE -11C AHEAD OF THE FRONT. THE COLD FRONT IS BEGINNING TO PUSH OVER THE WRN FA AT THIS TIME AND LIS ARE WARMING TO NEAR -6C AT 01Z. STRONG CONVECTION PERSISTS TO THE WSW OF WEBB COUNTY..AND FEEL THAT THIS CONVECTION WILL CONTINUE TO PROGRESS INTO THE WRN FA. COORD WITH SPC AND WEATHER WATCH WILL LIKELY BE ISSUED FOR THE INTERIOR CWA WITHIN THE HOUR THROUGH 08Z. HOWEVER..DUE TO THE HIGHER STABILITY VALUES ADVECTING ACROSS THIS REGION BEHIND THE FROPA..EXPECT ANY SEVERE OCCURRENCES TO ISOLATED AND ELEVATED IN NATURE. OTHERWISE..AFTER REVIEWING MODEL DATA..POTENTIAL FOR PCPN APPEARS TO BE HIGHEST TONIGHT ALONG THE APPROACHING CONVERGENT BOUNDARY..WITH A BREAK IN THE ACTIVITY DURING THE DAY SUN WITH A MORE STRATIFORM/ISENTROPIC RAIN EXPECTED..AND AN INCREASE SUN NIGHT/EARLY MONDAY AHEAD OF THE NEXT STRONGER FRONT WHICH WILL END THE POTENTIAL FOR RAINFALL UPON PASSAGE. BML.76 / BSB.91 .CRP...NONE.
In the hours before
Special weather statement, Apr 1, 4:24 PM CST, 3 hours 39 minutes before
TXZ229>234-239>247-021000-
HEAVY RAINFALL OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
424 PM CST SAT APR 1 2000
...LOCALLY HEAVY RAINFALL POSSIBLE OVER THE WEEKEND...
AN UPPER LEVEL LOW OVER THE DESERT SOUTHWEST IS EXPECTED TO SLIDE
SLOWLY SOUTH TONIGHT...THEN BEGIN MOVING EAST SUNDAY AFTERNOON. THE
LOW WILL CONTINUE TO FEED MOISTURE INTO THE REGION...AND PUSH UPPER
LEVEL DISTURBANCES OVER SOUTH TEXAS. IN ADDITION...A SURFACE
BOUNDARY...WHICH WAS LOCATED OVER THE HILL COUNTRY SATURDAY
AFTERNOON...WILL SLIDE SOUTH TONIGHT...AND AID IN SHOWER AND
THUNDERSTORM DEVELOPMENT.
AS A RESULT...SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER THE
VICTORIA CROSSROADS...COASTAL BEND...AND THE RIO GRANDE PLAINS.
THE FIRST THREAT FOR LIKELY RAINFALL IS EXPECTED AFTER MIDNIGHT
TONIGHT...INTO SUNDAY MORNING AS THE BOUNDARY MOVES SOUTH.
THE SURFACE BOUNDARY WILL REMAIN OVER THE AREA ON SUNDAY...BEFORE
MOVING EAST BY MONDAY MORNING. WHEN THE UPPER LEVEL STORM SYSTEM
APPROACHES SUNDAY NIGHT AND MONDAY...THE GREATEST THREAT FOR SHOWERS
AND THUNDERSTORMS WILL OCCUR AGAIN.
UNTIL THEN...THE ATMOSPHERE WILL REMAIN VERY MOIST AND UNSTABLE.
THUS...LOCALLY HEAVY RAINFALL IS POSSIBLE FROM MIDNIGHT TONIGHT
THROUGH EARLY MONDAY MORNING. AT THIS TIME...CONDITIONS ARE VERY
LIMITED FOR SEVERE THUNDERSTORM FORMATION OVER THE NORTHERN COASTAL
BEND AND VICTORIA AREA. ALTHOUGH THE STRONGER STORMS COULD PRODUCE
WIND GUSTS TO 45 MPH AND MARBLE-SIZED HAIL...NO SEVERE WEATHER IS
EXPECTED AT THIS TIME.
AVERAGE RAINFALL AMOUNTS OF OVER 1 INCH ARE EXPECTED OVER EASTERN
SECTIONS OF THE COASTAL BEND AND ALL OF THE VICTORIA CROSSROADS...
BEFORE THE UPPER LEVEL SYSTEM MOVES THROUGH MONDAY. ISOLATED
RAINFALL AMOUNTS OF 4 INCHES OR MORE ARE STILL POSSIBLE. SINCE
WIDESPREAD HEAVY RAINFALL IS NOT EXPECTED AT THIS TIME...A FLASH
FLOOD WATCH WILL NOT BE ISSUED.
RESIDENTS PLANNING OUTDOOR ACTIVITIES OVER THE REMAINDER OF THE
WEEKEND SHOULD BE AWARE OF THE POSSIBILITY OF SHOWERS AND
THUNDERSTORMS. THE STORMS MAY INTERRUPT OUTDOOR PLANS. ALSO...
RESIDENTS IN LOW-LYING AND FLOOD PRONE AREAS SHOULD CONTINUE TO
MONITOR WEATHER CONDITIONS SHOULD A FLASH FLOOD WATCH OR WARNING
BE ISSUED.
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI WILL CLOSELY MONITOR
THE DEVELOPING WEATHER SITUATION...AND WILL ISSUE STATEMENTS...
ADVISORIES...AND WARNINGS AS NEEDED. STAY TUNED TO NOAA WEATHER
RADIO...OR OTHER LOCAL MEDIA FOR THE LATEST WEATHER INFORMATION.
WEATHER INFORMATION CAN ALSO BE ACCESSED ON THE NATIONAL WEATHER
SERVICE CORPUS CHRISTI WEBSITE AT:
WWW.SRH.NOAA.GOV/CRP
GW/JMSpecial weather statement, Apr 1, 8:00 PM CST, 3 minutes before
TXZ229>234-239>241-020800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 800 PM CST SAT APR 1 2000 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 AM... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR THE FOLLOWING COUNTIES...BEE...DUVAL...GOLIAD...JIM WELLS... LASALLE...LIVE OAK...MCMULLEN...VICTORIA...AND WEBB COUNTIES. THE COMBINATION OF AN APPROACHING UPPER LEVEL DISTURBANCE AND A SURFACE FRONT LOCATED OVER LASALLE AND WEBB COUNTIES...WILL PRODUCE SHOWERS AND THUNDERSTORMS. ABUNDANT LOW LEVEL MOISTURE AND ATMOSPHERIC INSTABILITY WILL INCREASE THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. THE PRIMARY THREAT FOR SEVERE WEATHER WILL BE LARGE HAIL AND DAMAGING WINDS. HEAVY RAINFALL AND DANGEROUS CLOUD TO GROUND LIGHTNING WILL ALSO ACCOMPANY THESE STORMS. A SEVERE THUNDERSTORM WATCH MEANS SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. KEEP ALERT FOR THREATENING WEATHER... AND STAY TUNED TO THE NATIONAL WEATHER SERVICE FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BRONG
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 10:30 PM CST | Severe Thunderstorm Warning | CRP | McMullen | 30 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.