Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 103, NWS Houston/Galveston, TX

June 19, 2000Montgomery County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 19, 2000, 2:09 PM CDT for Montgomery County, Texas. It was in force for 51 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
Jun 19, 2000, 2:09 PM CDT (19:09 UTC)
Expired
Jun 19, 2000, 3:00 PM CDT
In force
51 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Montgomery County, TX

The radar

The Houston radar (KHGX), 101 km from the middle of the area, began a volume at 19:12 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 12:00Z, 7.2 hours before the alert went out and 222 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 12:00Z on 2000-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 896 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 2000-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939Sfc1 km3 km6 km9 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
896 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
893 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KHGX 191910
SVRHOU
TXC339-192000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
209 PM CDT MON JUN 19 2000

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONTGOMERY COUNTY IN SOUTHEAST TEXAS

* UNTIL 300 PM CDT

* AT 206 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4
  MILES NORTHEAST OF PORTER HEIGHTS...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  PATTON VILLAGE...ROMAN FOREST
  SPLENDORA...FOSTORIA

MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR 
BUSINESS. STAY AWAY FROM WINDOWS. DAMAGING WINDS AND HAIL TO 3/4 
INCH CAN BE EXPECTED.

PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

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 Jun 19, 9:15 AM CDT, 4 hours 54 minutes earlier.

Area forecast discussion, Jun 19, 9:15 AM CDT, 4 hours 54 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
915 AM CDT MON JUN 19 2000

ONLY MINOR ADJUSTMENTS FOR THE MORNING UPDATE.

GOOD DEAL OF SUNSHINE OVR THE CWA TO START THE DAY. RAOBS SHOW THAT
AIRMASS...AT LEAST AT LCH...HAS DRIED JUST A TAD VERSUS YESTERDAY.
STILL HEALTHY PW VALUES HOWEVER...AVERAGING 1.8" OVR AREA. CAPES ARE
IN THE 4500 BALLPARK AT CRP AND LCH. DEWPTS CONT IN THE M/U70S. CRP
SHOWS NO CAP THIS MORNING AS THEY DID YESTERDAY...SO HOPEFULLY
ACTIVITY WONT WAIT UNTIL LATE AFTN TO REALLY GET GOING AS WAS THE
CASE YDY. LIKE THE LAST FEW DAYS...NO LARGE TRIGGERING MECHANISM
TO ACT AS A FOCUS...SO FEEL BLANKETING CHC POPS OVR THE AREA THE
BEST WAY TO GO WITH DIFFERENTIAL HEATING THE MAIN SOURCE FOR
IGNITION. SINCE SKIES WERE SKC-SCT EARLY...SEABREEZE FNT CUD BE MORE
OF A FACTOR TDA.

RADAR INDC ACTIVITY OVR GULF MVG NWD TWD SRN ZONES...WITH SLIGHTLY
HIER COVERAGE SW. WILL LEAVE SLGTLY HIER POPS THERE IN PLACE. WILL
NOTCH INLAND WINDS UP TO ARND 10. OTRW NO REAL CHGS THIS MORNING.
TEMPS IN LINE WITH MOS/CURR ZFP SO FAR. MIGHT NUDGE COASTAL ZONES UP
A TAD GIVEN MAXES YDY.

ALLS QUIET ON THE MARINE SIDE. NO FLAGS.

.KHGX...NONE.

46/43/D

PRELIMS...
CLL BB 092/074 092/074 093 423
IAH BB 091/074 091/075 091 423
GLS BB 089/080 089/080 088 423

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 2:29 PM CDTSevere Thunderstorm WarningHGXWaller, Washington46 min
Jun 19, 3:56 PM CDTSevere Thunderstorm WarningHGXMadison49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.