Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 276, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Jun 4, 2000, 9:16 PM CDT for Nacogdoches County, Texas. It was in force for 44 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
- Jun 4, 2000, 9:16 PM CDT (02:16 UTC)
- Expired
- Jun 4, 2000, 10:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Nacogdoches County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 4, 9:25 PM CDT | Thunderstorm Wind 55 E | Nacogdoches, TX | Trees down over FM1638. |
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 nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 2.3 hours before the alert went out and 123 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
- 371 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KSHV 050218 SVRSHV TXC347-050300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 916 PM CDT SUN JUN 4 2000 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NACOGDOCHES COUNTY IN TEXAS * UNTIL 1000 PM CDT * AT 916 PM CDT...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF NACOGDOCHES...MOVING EAST AT 15 MPH. THIS THUNDERSTORM WILL PRODUCE LARGE HAIL TO NEAR 1 INCH IN DIAMETER AND STRONG DAMAGING WINDS UP TO 60 MPH. DO NOT REMAIN OUTSIDE...SEEK SHELTER IN A STRONG BUILDING. REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR... NACOGDOCHES COUNTY IN TEXAS UNTIL 1000 PM CDT. LAT...LON 3176 9471 3150 9475 3138 9433 3177 9444
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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 2:00 PM CDT, 7 hours 16 minutes earlier.
Area forecast discussion, Jun 4, 2:00 PM CDT, 7 hours 16 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 200 PM CDT SUN JUN 4 2000 HEAVY RAINFALL A GOOD BET ACROSS SOME LOCATIONS AGAIN TONIGHT AS PESKY UPPER LEVEL DISTURBANCE MOVES VERY SLOWLY EASTWARD. HEAVIEST...CONCENTRATED RAINFALL FELL OVERNIGHT AND THIS MORNING ACROSS THE UPPER SABINE AND SULPHUR RIVER BASINS WITH THE BIG TOTAL OF 4.05 INCHES AT MT VERNON TX. BOTH THE 12Z ETA AND LATEST RUC DATA SUGGESTS A SHIFT IN THE AXIS OF HEAVY RAINFALL LATE TONIGHT/MONDAY FROM NE TX...SE OK INTO S AR... N LA. UNTIL WE GET THERE...FLASH FLOOD WATCH WILL CONTINUE ACROSS ALL AREAS DUE IN PART TO PWS AOA 2 INCHES ACROSS MY ENTIRE REGION...5H LOW OVER REGION PROVIDING ABUNDANT LIFT...STRONG UPPER LEVEL DIVERGENCE IN RESPONSE TO ENTRANCE REGION OF UPPER JET STREAK AND WEAK SFC BOUNDARY ACROSS NE TX... S AR. WATCH MAY NEED TO BE EXTENDED INTO MONDAY ACROSS THE EASTERN THIRD DEPENDENT UPON HOW MUCH RAINFALL THE OUACHITA BASIN AREAS GET TONIGHT BUT FOR NOW WILL ALLOW WATCH TO EXPIRE AFTER TONIGHT. RAIN SHOULD END ACROSS THE NORTHWEST THIRD DURING THE MORNING HOURS MONDAY SO WILL LEAVE LOW POP IN ACROSS THIS AREA AND WORD IT MAINLY MORNING WITH MUCH HIGHER POPS FURTHER EAST. COLD FRONT CURRENTLY WORKING ITS WAY SOUTH ACROSS CENTRAL KS...MO WILL CONTINUE ITS SOUTHWARD TREK MAKING IT TO THE RED RIVER OF N TX...SE OK BY 12Z MON...HENCE ENDING THE RAIN ACROSS THIS AREA. THIS FRONT SHOULD GET GOOD PUSH THROUGH THE FOUR STATE REGION WITH NORTHERLY FLOW ALOFT SETTING UP ACROSS REGION AS 5H RIDGE STRENGTHENS ACROSS THE SOUTHERN GREAT BASIN. TEMPS OVER THE NEXT 24 HOURS WILL BE TRICKY WITH THE RAIN FORECAST AND FRONTAL INFLUENCES. WILL STICK CLOSE TO ETA SFC TEMPS THROUGH THIS PERIOD. INCREASING 8H TEMPS ACROSS THE WEST ON TUE SUGGEST WARMER TEMPS BY TUE. PRELIMS TO FOLLOW...13 SHV 69/82/65/84 8510 MLU 69/81/65/83 8720 TXK 69/81/62/83 7400 TYR 69/83/64/85 7410 LFK 70/83/65/85 8510 .SHV...FLASH FLOOD WATCH THROUGH TONIGHT FOR NE TX...N LA...EXTREME SE OK AND SW AR.
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.