Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 106, NWS Houston/Galveston, TX

July 1, 2000Liberty County, Montgomery County, San Jacinto County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jul 1, 2000, 9:26 PM CDT for Liberty County, Montgomery County, San Jacinto County, Texas. It was in force for 34 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
Jul 1, 2000, 9:26 PM CDT (02:26 UTC)
Expired
Jul 1, 2000, 10:00 PM CDT
In force
34 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Liberty County, TX, Montgomery County, TX, San Jacinto County, TX

The radar

The Houston radar (KHGX), 97 km from the middle of the area, began a volume at 02:28 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, 2.4 hours before the alert went out and 190 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.

Skew-T log-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 2000-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 447 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2000-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939Sfc1 km3 km6 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
447 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
908 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jul 1, 8:35 PM CDT, 51 minutes earlier.

Area forecast discussion, Jul 1, 8:35 PM CDT, 51 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
835 PM CDT SAT JUL 1 2000

SCATTERED CONVECTION ONGOING NORTHEAST ZONES BUT EXPECT THIS TO
DECREASE IN AREAL COVERAGE AND INTENSITY WITHIN THE NEXT HOUR.
00Z SURROUNDING SOUNDINGS CONTINUE TO INDICATE HIGH PW VALUES TO EAST
(2.13 INCHES LCH) AND DECREASING TO THE W AND SW. WILL MAKE MINOR 1ST
PERIOD ADJUSTMENTS AND STAY CLOSE TO CURRENT CONVECTIVE TREND AND
rRUC GUIDANCE.

.KHGX...NONE.

37/36

CLL BB 074/094 074/093 074 2232 (233 POPS NE)
IAH BB 074/093 075/093 075 2222
GLS BB 080/089 080/089 080 2212

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 10:26 PM CDTFlash Flood WarningHGXSan Jacinto2 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.