Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 210, NWS Houston/Galveston, TX

October 25, 1997Montgomery County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Oct 25, 1997, 6:45 PM CDT for Montgomery County, Texas. It was in force for 60 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
Oct 25, 1997, 6:45 PM CDT (23:45 UTC)
Expired
Oct 25, 1997, 7:45 PM CDT
In force
60 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Montgomery County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.8 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 1997-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3249 joules per kilogram.LCLEL10008507005003002001001 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 1997-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.1939587897Sfc1 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
3249 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
2.0
Supercell composite
12.5

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 Oct 25, 2:39 PM CDT, 4 hours 6 minutes earlier.

Area forecast discussion, Oct 25, 2:39 PM CDT, 4 hours 6 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
233 PM CDT SAT OCT 25 1997

DRYLINE IN CENTRAL TX PUSHING EAST AS SW WINDS CONTINUE TO DEVELOP
OVER THE FA.  HIGH DWPTS CONFINED TO THE SRN + ERN PORTIONS OF FA
WITH THE DRYLINE PUTTING THE SQUEEZE ON MAY STILL SEE SVR IN THE MDT
RISK AREA THROUGH LATE AFTERNOON.  BY EARLY EVENING STORMS SHOULD BE
WELL EAST OF THE FA AND WNW SFC WINDS BLOWING OVER THE REGION.  WILL
LEAVE IN SLIM POPS FOR THE COAST AND EASTERN ZONES THIS EVENING (ERN
ZONES SHOULD STILL HAVE MENTION OF SOME POSSIBLY SEVERE THROUGH EARLY
EVENING) FOR THIS EVENING ALTHOUGH DO NOT EXPECT MUCH IN THE WAY OF
ACCUMULATION.  COLD FRONT HAS A WAYS TO GO TO GET HERE AND DO NOT
EXPECT IT UNTIL MIDNIGHT IN THE NW ZONES AND REACHING THE COAST BY
4AM.  WINDS WILL ALREADY HAVE GONE RATHER GUSTY AND WITH THE
INCREASED CAA WILL NEED TO HAVE BECOMING WINDY INCLUDED IN THE
COASTAL ZONES AND GALE FORCE FOR THE NSH.  S/W TO ROTATE THROUGH THE
REGION AFTER SUNRISE BRINGING MID-UPPER LEVEL LIFT AND MOISTURE TO
KEEP SKIES MOSTLY CLOUDY (LOTS OF AC) AND THEN THINNING DURING THE
AFTERNOON ALTHOUGH WITH THE LL COOLING WILL HAVE IN LOW CLOUDS OVER
THE NORTHERN ZONES...AND THEN A QUICK CLEARING TREND ON MONDAY AS
RIDGE AXIS WILL OVER THE REGION.  TEMPS WILL BE ON A STEADY DECLINE
WITH MINS TONIGHT IN THE 50S INLAND AND SUNDAY NIGHT LOWER 40S TO
AROUND 40 INLAND.  WILL BE FAVORING THE WARMER NGM FOR MINS.

45

PRELIMS
CLL E E>B/B V 051 062/040 058 0000  NW NEAR 15 AND GUSTY TONIGHT
IAH E E>B/B V 055 063/042 062 -000            "
NE  E E/>B V  056 063/041 061 3000  BCMG NW 15 TO 20 AND GUSTY TONITE
GLS E E/>B V  064 064/049 062 2000  BCMNG WINDY TONITE GUSTS 35 MPH
                                     AFTER MIDNIGHT

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 25, 4:56 PM CDTTornado WarningHGXHouston64 min
Oct 25, 5:19 PM CDTSevere Thunderstorm WarningHGXWaller26 min
Oct 25, 5:23 PM CDTTornado WarningHGXMadison, Walker67 min
Oct 25, 5:40 PM CDTTornado WarningHGXMontgomery, Waller65 min
Oct 25, 5:55 PM CDTTornado WarningHGXGrimes35 min
Oct 25, 6:34 PM CDTSevere Thunderstorm WarningHGXHarris56 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

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.