Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 182, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Aug 23, 1997, 2:57 AM CDT for Montgomery County, Texas. It was in force for 63 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
- Aug 23, 1997, 2:57 AM CDT (07:57 UTC)
- Expired
- Aug 23, 1997, 4:00 AM CDT
- In force
- 63 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 07:57 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, 8.0 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.
- Mixed-layer CAPE
- 20 J/kg
- Mixed-layer CIN
- -244 J/kg
- Mixed-layer LCL
- 1014 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -145 m²/s²
- 0-3 km storm-relative helicity
- -96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 230757 RRA SVRHOU TXC339-230900- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 257 AM CDT SAT AUG 23 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST TEXAS ...MONTGOMERY COUNTY AT 257 AM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER LAKE CONROE 6 MILES NORTHWEST OF WILLIS. MOVEMENT WAS TO THE SOUTH AT 20 MPH. THIS STORM WILL MOVE EAST OF MONTGOMERY ON HWY 105 BY 305 AM. LARGE HAIL IS THE PRIMARY THREAT FROM THIS THUNDERSTORM. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND VERY HEAVY RAIN. IF CAUGHT OUTSIDE... MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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 Aug 23, 2:23 AM CDT, 34 minutes earlier.
Area forecast discussion, Aug 23, 2:23 AM CDT, 34 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 222 AM CDT SAT AUG 23 1997 THE OVERALL H5 PATTERN OVR THE RGN WL REMAIN IN PLACE THIS PD...THO THE ETA/AVN SHOW THE HI OVR NM/AZ SHIFTING SLGTLY EWD. TSTMS OVR THE NRN PTNS OF THE FA AT THE MOMENT ARE FCST TO LINGER ALONG THE CST EARLY INTO THE 1ST PD...SO WL KEEP THE BETTER CHCS ALONG THE CST TDY. ANOTHER S/W TO TREK AROUND THE HI INTO SETX TONIGHT THO THE MSTR SUPPLY WL BE LESS THAN WHAT WAS AVBL TO THE PRESENT SYSTEM. H3 POT VORT AND H5 VORT ANALYSES SHOWING THE BEST CHCS FOR TSTM DEVELOPMENT TO BE MORE ERLY SUN FOR THE SRN ZNES AND CSTL WATERS. WL THUS UP THE POPS ON SUN TO REFLECT THIS FACT. OVERALL...SINCE THE WK SFC FNTL BNDRY WL LINGER ACROSS THE AREA THRU THE PD...THINK THAT THE FWC IS WAY TOO LOW FOR POPS. SO WL LEAN TWD THE FAN NOS. 00Z ETA DOES NOT SHOW THE LOW SUN THAT THE 12Z ETA DEVELOPED...BUT WL CONT TO KEEP AN EYE OUT AS THE PRESEFNT ACTIVITY PUSHES INTO THE GLF. 40 PRELIMS... CLL B/B B/A 096/073 096/073 2210 NE E-B/E B/A 090/071 094/071 2210 IAH E-B/E B/A 093/072 095/072 2210 GLS E-B/E E/A 090/080 090/080 3322 PSX E-B/E E/A 094/080 095/080 3332 (CHC EARLY 3RD PD)
In the hours before
Special weather statement, Aug 22, 9:00 PM CDT, 5 hours 57 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-511-513-231100- SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 900 PM CDT FRI AUG 22 1997 THUNDERSTORMS PRODUCING HEAVY RAINFALL COULD AFFECT SOUTHEAST TEXAS TONIGHT...ALTHOUGH THEY WILL BE MAINLY EAST OF A LINE FROM CROCKETT TO COLDSPRING TO LIBERTY TO HIGH ISLAND. IN ADDITION THE POSSIBILITY OF ISOLATED SEVERE THUNDERSTORMS EXSIST OVER ALL OF SOUTHEAST TEXAS TONIGHT. SHOWER AND THUNDERSTORMS THAT MOVED THROUGH THE AREA EARLIER THIS EVENING HAVE LEFT BEHIND A SHALLOW DOME OF COOL SATURATED AIR OVER THE EASTERN PORTIONS OF THE REGION. AN APPROACHING UPPER LEVEL DISTURBANCE WILL HELP A LARGE CLUSTER OF THUNDERSTORMS TO DEVELOP AND MOVE SOUTH ALONG THE SABINE RIVER VALLEY. THUNDERSTORMS MAY DEVELOP ALONG THE WESTERN FLANK OF THIS CLUSTER AND SPREAD TO THE SOUTHWEST BRINGING THE THREAT OF LOCALLY HEAVY RAIN AND POSSIBLY SEVERE WEATHER IN THE FORM OF GUSTY WINDS AND HAIL. WITH THE GULF MOISTURE PRESENT IN THE ATMOSPHERE AND THE SHALLOW DOME OF COOL AIR TO THE EAST TO FOCUS THE CONVECTION ALONG...RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE MAINLY EAST OF A LINE FROM HIGH ISLAND TO CROCKETT. MARINE INTERESTS ALONG THE UPPER TEXAS COASTAL WATERS CAN EXPECT ISOLATED SEVERE THUNDERSTORMS TO BE A THREAT THROUGHOUT THE OVERNIGHT HOURS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD CONTINUE TO MONITOR THIS WEATHER SITUATION. STAY TUNED TO NOAA WEATHER RADIO...OR THE LOCAL MEDIA OUTLETS FOR FURTHER UPDATES ON THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Aug 22, 9:02 PM CDT, 5 hours 55 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-511-513-231100- SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 900 PM CDT FRI AUG 22 1997 THUNDERSTORMS PRODUCING HEAVY RAINFALL COULD AFFECT SOUTHEAST TEXAS TONIGHT...ALTHOUGH THEY WILL BE MAINLY EAST OF A LINE FROM CROCKETT TO COLDSPRING TO LIBERTY TO HIGH ISLAND. IN ADDITION THE POSSIBILITY OF ISOLATED SEVERE THUNDERSTORMS EXSIST OVER ALL OF SOUTHEAST TEXAS TONIGHT. SHOWER AND THUNDERSTORMS THAT MOVED THROUGH THE AREA EARLIER THIS EVENING HAVE LEFT BEHIND A SHALLOW DOME OF COOL SATURATED AIR OVER THE EASTERN PORTIONS OF THE REGION. AN APPROACHING UPPER LEVEL DISTURBANCE WILL HELP A LARGE CLUSTER OF THUNDERSTORMS TO DEVELOP AND MOVE SOUTH ALONG THE SABINE RIVER VALLEY. THUNDERSTORMS MAY DEVELOP ALONG THE WESTERN FLANK OF THIS CLUSTER AND SPREAD TO THE SOUTHWEST BRINGING THE THREAT OF LOCALLY HEAVY RAIN AND POSSIBLY SEVERE WEATHER IN THE FORM OF GUSTY WINDS AND HAIL. WITH THE GULF MOISTURE PRESENT IN THE ATMOSPHERE AND THE SHALLOW DOME OF COOL AIR TO THE EAST TO FOCUS THE CONVECTION ALONG...RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE MAINLY EAST OF A LINE FROM HIGH ISLAND TO CROCKETT. MARINE INTERESTS ALONG THE UPPER TEXAS COASTAL WATERS CAN EXPECT ISOLATED SEVERE THUNDERSTORMS TO BE A THREAT THROUGHOUT THE OVERNIGHT HOURS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD CONTINUE TO MONITOR THIS WEATHER SI*TUATION. STAY TUNED TO NOAA WEATHER RADIO...OR THE LOCAL MEDIA OUTLETS FOR FURTHER UPDATES ON THIS DEVELOPING WEATHER SITUATION.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 2:12 AM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 63 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; radar from the NEXRAD Level II archive.