Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 29, NWS Houston/Galveston, TX

March 14, 2001Harris County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 14, 2001, 4:32 PM CST for Harris County, Texas. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Mar 14, 2001, 4:32 PM CST (22:32 UTC)
Expired: Mar 14, 2001, 5:00 PM CST
In force: 28 min
Issued by: NWS Houston/Galveston, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Harris County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 14, 2:30 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.5 hours before the alert went out and 196 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: 2308 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 59 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 142233
SVRHOU
TXC201-142300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
432 PM CST WED MAR 14 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 500 PM CST

* AT 428 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ALONG
  A LINE EXTENDING FROM GALENA PARK TO PEARLAND...MOVING EAST
  AT 50 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORMS INCLUDE...
  PASADENA...ELLINGTON FIELD...CLEAR LAKE
  SHOREACRES...LA PORTE...MORGANS POINT...EL LAGO

PREPARE FOR WINDS OF 5O TO 70 MPH AND HAIL UP TO QUARTER SIZE
BETWEEN 440 AND 500 PM.

STRONG WINDS MAY KNOCK DOWN TREES AND POWER LINES OR DAMAGE
BUILDINGS. TAKE COVER NOW

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.

LAT...LON 2965 9519 2953 9520 2957 9500 2967 9502

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 Mar 14, 2:45 PM CST, 1 hour 47 minutes earlier.

Area forecast discussion, Mar 14, 2:45 PM CST, 1 hour 47 minutes before

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
245 PM CST WED MAR 14 2001

SEVERE WEATHER STEPPING UP AT THIS TIME SO WILL BE BRIEF. SEVERE
THUNDERSTORM WATCH JUST ISSUED. VERY STRONG MID LEVEL WINDS AND
0-6KM SHEAR OVERCOMING ASSUMED MARGINAL INSTABILITY. WORST STORM
MOVING THROUGH THE HOUSTON METRO AREA NEXT 2 HOURS. SHORT WAVE
MOVING THROUGH SOUTHEAST TEXAS TONIGHT WITH PRECIP EXITING BEFORE
MID EVENING. NEXT WEATHER MAKER DEEPENING SHORT WAVE MOVING INTO THE
SOUTHWEST U.S. FRIDAY THEN EAST AGAIN ACROSS TEXAS OVER THE
WEEKEND.  SIGNIFICANT DIFFERENCE 12Z AVN FROM 00Z MRF SO CONFIDENCE
ON TIMING ETC NOT GREAT. COULD SEE SHOWERS AS EARLY AS SATURDAY WITH
BEST CHANCES SUNDAY. IF AVN ON TRACK SYSTEM GOES EAST MONDAY WITH A
COUPLE OF NICE DAYS THEREAFTER.

MILD WITH NORTHWEST WINDS TOMORROW THEN A BIT COOLER EVEN THOUGH
SUNNY FRIDAY AS COLDER SURGE REACHES SOUTH TEXAS. TEMPS STAY ON COOL
SIDE RELATIVE TO NORMAL REMAINDER OF THIS FORECAST.

WINDS WILL BE UP TOMORROW ON WATERS SO SCA WILL LIKELY BE REQUIRED.
PROLONGED WEST TO NORTHWEST WINDS WILL LOWER TIDES BY TORMORROW
AFTERNOON.

.KHGX...SCEC 0-60 NM.

30/40/DO

PRELIMS...
CLL UU 050/072 043/066 300
IAH UU 051/073 044/068 400
GLS UU 058/074 057/070 500

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 14, 2:07 PM CST	Severe Thunderstorm Warning	HGX	Harris, Waller	23 min
Mar 14, 2:07 PM CST	Severe Thunderstorm Warning	HGX	Austin	23 min
Mar 14, 2:28 PM CST	Tornado Warning	HGX	Harris, Waller	47 min
Mar 14, 2:36 PM CST	Severe Thunderstorm Warning	HGX	Montgomery	39 min
Mar 14, 2:59 PM CST	Tornado Warning	HGX	Harris, Liberty, Montgomery	46 min
Mar 14, 3:21 PM CST	Severe Thunderstorm Warning	HGX	Chambers	54 min
Mar 14, 3:26 PM CST	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Matagorda, Wharton	64 min
Mar 14, 3:44 PM CST	Severe Thunderstorm Warning	HGX	Harris, Liberty	61 min
Mar 14, 4:03 PM CST	Severe Thunderstorm Warning	HGX	Galveston	57 min
Mar 14, 4:26 PM CST	Severe Thunderstorm Warning	HGX	Brazoria	34 min
Mar 14, 4:41 PM CST	Tornado Warning	HGX	Galveston	34 min
Mar 14, 4:52 PM CST	Severe Thunderstorm Warning	HGX	Chambers	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001 Every severe thunderstorm warning in 2001

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.