Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 49, NWS Houston/Galveston, TX

November 25, 1987Chambers County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Nov 25, 1987, 8:37 AM CST for Chambers County, Texas. It was in force for 68 min.

The area

The counties it named.

The facts

Issued: Nov 25, 1987, 8:37 AM CST (14:37 UTC)
Expired: Nov 25, 1987, 9:45 AM CST
In force: 68 min
Issued by: NWS Houston/Galveston, TX
Area: Whole counties

County Chambers County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.6 hours before the alert went out and 149 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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.

In the hours before

Special weather statement, Nov 25, 2:38 AM CST, 5 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
835 AM CDT MON APR 13 1987

...STRONG THUNDERSTORMS DEVELOPING IN SOUTHEAST TEXAS...

WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS WERE PRODUCING
HEAVY RAINFALL FROM MONTGOMERY ACROSS THE HUNTSVILLE AREA TO LAKE
LIVINGSTON.

THESE WERE PART OF A LARGE AREA OF RAIN AND THUNDERSTORMS THAT
STRECHED FROM THE COAST WEST OF FREEPORT ACROSS SOUTHEAST TEXAS TO
THE TOLEDO BEND LAKE AND INTO CENTERAL TEXAS. THESE WERE MOVING TO
THE NORTH AT 30 MILES AN HOUR.

MOTORISTS ARE URGED TO SLOW DOWN ON RAIN SLICK STREETS AND BE ALERT
FOR MINOR FLOODING OF SOME LOW LYING AREAS.

STAY TUNED FOR LATER STATEMENTS.

Special weather statement, Nov 25, 6:51 AM CST, 1 hour 46 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 25, 5:32 AM CST	Severe Thunderstorm Warning	HGX	Montgomery	43 min
Nov 25, 6:03 AM CST	Flash Flood Warning	HGX	Montgomery	117 min
Nov 25, 6:21 AM CST	Tornado Warning	HGX	Wharton	54 min
Nov 25, 6:28 AM CST	Flash Flood Warning	HGX	Walker	2 hr
Nov 25, 8:05 AM CST	Severe Thunderstorm Warning	HGX	Brazoria	40 min
Nov 25, 8:10 AM CST	Flash Flood Warning	HGX	Harris	2 hr
Nov 25, 8:27 AM CST	Severe Thunderstorm Warning	HGX	Galveston	63 min

Nearby

Severe Thunderstorm Warnings in Texas, 1987 Every severe thunderstorm warning in 1987

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.