Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 101, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 27, 1997, 7:57 PM CDT for Walker 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
- May 27, 1997, 7:57 PM CDT (00:57 UTC)
- Expired
- May 27, 1997, 9:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Walker County, TX
The radar
The Houston radar (KHGX), 149 km from the middle of the area, began a volume at 00:58 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 27, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.0 hours before the alert went out and 238 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
- 3458 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 843 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 280057 RRA SVRHOU TXC471-280200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 757 PM CDT TUE MAY 27 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST TEXAS ...WALKER COUNTY AT 755 PM...RADAR INDICATED A SEVERE THUNDERSTORM IN MADISON COUNTY NEAR COTTONWOOD. MOVEMENT WAS SOUTHEAST AT 25 MPH. THIS MOVEMENT WILL BRING THE STORM TO THE CRABBS PRAIRIE AND HUNTSVILLE AREA BETWEEN 830 PM AND 845 PM. THE MADISON COUNTY SHERIFF'S OFFICE REPORTED HAIL AT NORTH ZULCH IN MADISON COUNTY AT 754 PM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. &
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 27, 7:39 PM CDT, 18 minutes earlier.
Area forecast discussion, May 27, 7:39 PM CDT, 18 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 739 PM CDT TUE MAY 27 1997 STG TO SVR TSTMS WERE BEGINNING TO AFFECT THE NWRN PTNS OF SETX AT THIS HR. WITH PW/S FM 1.5 TO 1.75...AM CONCERNED ABT POSSIBLE ADDED FLOODING WITH TSTMS NW OF CLL. RDR ESTIMATES WERE 1.5 TO 2.0 INCHES PER HOUR WITH THESE STORMS...WHICH WERE OVR THE ALREADY FLOODING NAVASOTA RIVER (1/2 OVR FLOOD STAGE AT 12Z TDY NR NORMANGEE). CURRENT THINKING HERE IS THAT MCS REDEVELOPMENT IS POSSIBLE OVERNIGHT OVER SETX...EXCLUDING THE CURRENT DEVELOPMENT. WENT WITH THIS SCENERIO IN THE TAF/S. CURRENT FCSTS ARE OK AND NO UPDATES ARE NEEDED XCP TO KEEP UP WITH ANY WATCHES THAT ARE OR WL BE IN EFFECT. ...40... EARLIER PRELIMS... CLL E/E E/B 69/88 69/90 6422 IAH E/E E/B 72/89 71/91 6432 GLS E/E E/B 78/84 76/84 4432
In the hours before
Special weather statement, May 27, 3:48 PM CDT, 4 hours 9 minutes before
TXZ163-164-176>179-195>198-210-211-280400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 348 PM CDT TUE MAY 27 1997 ...TORNADO WATCH IN EFFECT FOR WESTERN PORTIONS OF SOUTHEAST TEXAS UNTIL 1000 PM... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR THE FOLLOWING COUNTIES IN THE WESTERN PORTIONS OF SOUTHEAST TEXAS... BRAZOS...BURLESON...WASHINGTON...AUSTIN...AND COLORADO. THE TORNADO WATCH THAT WAS IN EFFECT UNTIL 700 PM FOR MADISON... HOUSTON...TRINITY...GRIMES...WALKER...SAN JACINTO...AND POLK COUNTIES REMAINS IN EFFECT. A SLOW SOUTHEAST MOVING COLD FRONT TO THE NORTH AND WEST OF SOUTHEAST TEXAS IS THE FOCUS FOR SHOWER AND THUNDERSTORM DEVELOPMENT THIS AFTERNOON. AS THIS BOUNDARY CONTINUES TO DRIFT TO THE SOUTH AND SOUTHEAST...SOME THUNDERSTORMS WILL BE CAPABLE OF BECOMING SEVERE. SEVERE THUNDERSTORMS HAVE ALREADY DEVELOPED BETWEEN WACO AND AUSTIN...PRODUCING VERY LARGE HAIL AND TORNADOES. ANY THUNDERSTORMS THAT DO DEVELOP IN OR NEAR THE TORNADO WATCH AREAS HAVE A GOOD POTENTIAL OF BECOMING SEVERE. IF SEVERE WEATHER IS OBSERVED...PLEASE CONTACT YOUR LOCAL LAW ENFORCEMENT OFFICE IMMEDIATELY AND ASK THEM TO RELAY YOUR REPORT TO THE HOUSTON/GALVESTON NATIONAL WEATHER SERVICE OFFICE. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
Special weather statement, May 27, 6:50 PM CDT, 1 hour 7 minutes before
TXZ163-164-176>179-195>199-210-211-280600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 650 PM CDT TUE MAY 27 1997 ...TORNADO WATCH IN EFFECT FOR NORTHERN PORTIONS OF SOUTHEAST TEXAS UNTIL 100 AM... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR THE FOLLOWING COUNTIES IN THE NORTHERN PORTIONS OF SOUTHEAST TEXAS... BRAZOS...BURLESON...MADISON...GRIMES...WALKER...MONTGOMERY... HOUSTON...TRINITY...SAN JACINTO...AND POLK. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM FOR WASHINGTON... AUSTIN...AND COLORADO COUNTIES. SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP TO THE NORTH AND WEST OF SOUTHEAST TEXAS ACROSS A VERY UNSTABLE AIRMASS. THESE STORMS WILL CONTINUE TO SLOWLY PROGRESS TO THE SOUTH AND SOUTH SOUTHEAST TOWARD SOUTHEAST TEXAS...AND MAY DEVELOP INTO A SQUALL LINE AFTER SUNSET. THUNDERSTORMS FROM THIS SAME SYSTEM HAVE A HISTORY OF PRODUCING LARGE HAIL...DAMAGING WINDS AND TORNADOES BETWEEN AUSTIN AND WACO RESULTING IN NUMEROUS INJURIES AND FATALITIES. THE THUNDERSTORMS THAT DEVELOP ACROSS SOUTHEAST TEXAS HAVE THE POTENTIAL TO BE AS SEVERE AS THESE STORMS EARLIER TODAY. LARGE HAIL AND DAMAGING WINDS ARE THE GREATEST THREAT WITH THIS EVENINGS THUNDERSTORMS. CONDITIONS ARE ALSO FAVORABLE FOR TORNADOES TO DEVELOP IN AND NEAR THE WATCH AREAS. IF SEVERE WEATHER IS OBSERVED...PLEASE CONTACT YOUR LOCAL LAW ENFORCEMENT OFFICE IMMEDIATELY AND ASK THEM TO RELAY YOUR REPORT TO THE HOUSTON/GALVESTON NATIONAL WEATHER SERVICE OFFICE. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 7:16 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Madison | 59 min |
| May 27, 7:49 PM CDT | Severe Thunderstorm Warning | HGX | Grimes | 56 min |
| May 27, 11:22 PM CDT | Severe Thunderstorm Warning | HGX | Grimes | 53 min |
| May 27, 11:40 PM CDT | Flash Flood Warning | HGX | Grimes, Walker | 2 hr |
| May 28, 12:23 AM CDT | Severe Thunderstorm Warning | HGX | Grimes, Montgomery, Walker | 67 min |
| May 28, 12:43 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 62 min |
| May 28, 10:43 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 62 min |
| May 28, 11:44 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 61 min |
| May 28, 12:56 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 64 min |
| May 28, 1:48 PM CDT | Severe Thunderstorm Warning | HGX | Galveston | 57 min |
| May 28, 1:58 PM CDT | Severe Thunderstorm Warning | HGX | San Jacinto | 62 min |
| May 28, 2:18 PM CDT | Severe Thunderstorm Warning | HGX | Waller | 57 min |
| May 28, 2:52 PM CDT | Severe Thunderstorm Warning | HGX | Austin | 68 min |
| May 28, 2:59 PM CDT | Tornado Warning | HGX | Polk | 31 min |
| May 28, 3:16 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Fort Bend | 59 min |
| May 28, 3:36 PM CDT | Tornado Warning | HGX | Brazoria, Fort Bend | 69 min |
| May 28, 4:38 PM CDT | Severe Thunderstorm Warning | HGX | Jackson, Matagorda, Wharton | 67 min |
| May 28, 5:57 PM CDT | Severe Thunderstorm Warning | HGX | Jackson | 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.