Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 100, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 19, 2000, 11:17 PM CDT for Liberty County, Texas. It was in force for 43 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 19, 2000, 11:17 PM CDT (04:17 UTC)
- Expired
- May 20, 2000, 12:00 AM CDT
- In force
- 43 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Liberty County, TX
The radar
The Houston radar (KHGX), 80 km from the middle of the area, began a volume at 04:16 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.3 hours before the alert went out and 155 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
- 701 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1188 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 19, 8:46 PM CDT, 2 hours 31 minutes earlier.
Area forecast discussion, May 19, 8:46 PM CDT, 2 hours 31 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 846 PM CDT FRI MAY 19 2000 QUITE A BIT OF RAIN FOR PARTS OF THE FA ALREADY THIS EVENING. AREAS NEAR IAH HAVE RECEIVED AT LEAST 6 OF RAIN SINCE ABOUT 5 PM AND THE APPROACH CONTROL BUILDING AT IAH REPORTED ABOUT 1 OF WATER IN THE BUILDING AT ONE POINT. MOST OF THESE HEAVY RAINS HAVE MOVED OFF AS THE JUNCTION OF CELL MERGERS HAVE ALSO MOVED OFF TO THE NE. FOR THE REMAINDER OF TONIGHT WE COULD STILL BE IN FOR A BUMPY RIDE. A N-S LINE OF STRONG/SEVERE TSRA DEVELOPING OVER SW/SC TX AS DEEP MOISTURE/SPOTTY PCPN CONTINUES TO PUSH NORTH FROM THE GULF. EVENING SOUNDINGS FROM THE AREA INDICATED A VERY WEAK CAP ALONG WITH A FAIRLY STRONG S/SELY CLIP AT THE LOWER LEVELS. AMS ALSO APPEARS QUITE UNSTABLE (-9 LI AT CRP) CLOSER TO THE COAST. IN ADDITION... THERE ARE LIKELY A LOT OF LEFT-OVER MESO BOUNDARIES AROUND THE AREA. THUS WILL EXTEND THE FFA FOR ALL OF THE CWA AND KEEP THE MENTION OF SEVERE ALL THE WAY AROUND. 41/47/30/42/48/36 .KHGX...FLASH FLOOD WATCH TONIGHT ALL SE TX. CLL TT 068/084 067/087 068 8534 IAH CE 071/085 069/087 070 8434 GLS CE 075/083 073/083 075 6434
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:25 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 35 min |
| May 19, 8:46 PM CDT | Tornado Warning | HGX | Liberty | 59 min |
| May 19, 8:49 PM CDT | Flash Flood Warning | HGX | Harris, Liberty | 116 min |
| May 19, 9:20 PM CDT | Flash Flood Warning | HGX | Waller | 3 hr |
| May 19, 10:35 PM CDT | Flash Flood Warning | HGX | Harris, Liberty, Montgomery | 100 min |
| May 19, 10:45 PM CDT | Tornado Warning | HGX | Brazoria | 45 min |
| May 19, 11:25 PM CDT | Tornado Warning | HGX | Brazoria | 50 min |
| May 19, 11:30 PM CDT | Tornado Warning | HGX | Liberty | 30 min |
| May 19, 11:33 PM CDT | Flash Flood Warning | HGX | Brazoria | 3 hr |
| May 20, 12:00 AM CDT | Flash Flood Warning | HGX | Brazoria, Chambers, Fort Bend, Harris, Liberty, Waller and 1 more | 5 hr |
| May 20, 12:25 AM CDT | Tornado Warning | HGX | Chambers, Liberty | 65 min |
| May 20, 2:02 AM CDT | Severe Thunderstorm Warning | HGX | Galveston | 28 min |
| May 20, 2:22 AM CDT | Tornado Warning | HGX | Chambers, Galveston | 38 min |
| May 20, 4:59 AM CDT | Flash Flood Warning | HGX | Harris, Liberty | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.