Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 85, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Feb 26, 1998, 6:12 AM CST for Harris County, Texas. It was in force for 48 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
- Feb 26, 1998, 6:12 AM CST (12:12 UTC)
- Expired
- Feb 26, 1998, 7:00 AM CST
- In force
- 48 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Harris County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.2 hours before the alert went out and 213 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
- 428 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 616 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 323 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
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 Feb 26, 2:34 AM CST, 3 hours 38 minutes earlier.
Area forecast discussion, Feb 26, 2:34 AM CST, 3 hours 38 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 234 AM CST THU FEB 26 1998 COMPLICATED WX PATTERN ACRS TX THIS MRNG WITH LN OF STRNG TSTMS ALONG SFC TROF AXIS PUSHING ACRS FA WITH MORE DVLPMNT BEHIND THIS LN AS MAIN CF IS STILL BACK ACRS WEST CTNRL TX. ALSO...SFC LOW CONTS TO DEEPEN NEAR BRO AND PROGD TO PUSH UP THE TX COAST TDY. MAIN MID-UPR LOW HAS BECOME VERTICALLY STACKED OVR NE/SD AREA SO DONT EXPECT MUCH MVMNT OVR NXT 48HRS WITH TX RMNG UNDER MAIN TROF AXIS. BELIEVE KEY TO OUR WX IS THIS SFC LOW OVR BRO. MDLS TAKE IT UP THE TX COAST AND INTO SRN LA BY 18Z WITH AREA WNDS SHIFTING WEST AS CF PUSHES OFF UPR TX COAST ARND 18-19Z WITH SOME CLRG IN ITS WAKE. AT SAME TIME...850 MB WNDS SHIFT WEST WITH LAST VOR MAX PUSHING EAST & DRIER AIR ADVECTING IN FM WEST. THEREFORE...WILL KEEP CLDS & CHC SHWRS/TSTMS IN FA THRU 18Z THEN BECOME PTLY CLDY IN THE AFTN. WILL NOT MENTION PSBL SVR THIS MRNG AS MOISTURE AND INSTABILITY WILL CONT TO DECREASE. FAIR SKIES LOOK BEST TNGT WITH FEW HIGH CLDS ARND...BUT NOT BUYING NGMS RTRN FLOW...MOISTURE & CLDS BY 36-48HRS SINCE DONT BELIEVE LOW LVL WNDS WILL BE ABLE TO TURN WITH DEEP 990 MB SFC LOW STILL PARKED OVR IA/IL AREA. WILL STAY WITH PTCLY CLDY SKIES ON FRI SINCE NOT SURE WHAT MOISTURE WILL BE ABLE TO RIDE DOWN BACK SIDE OF UPR LONG TROF SITLL OVR TX. LOOKS LIKE ANOTHER STRNG SPD MAX WILL PUSH DOWN BACKSIDE OF TROF AXIS FRI NGT AND FINALLY KICK UPR LOW EWD. THIS SPD MAX SHUD BRING CLDS AND ANOTHER CHC OF RAIN BACK TO FCST FOR SAT BEFORE CLRG OUT BY SUN UNDER A DRIER NW FLOW ALOFT. LEANING TWRD COOLER AVN NUMBERS IN WAKE OF FROPA. 39 PRELIMS...(CHC SHWRS/TSTMS THRU NOONISH THEN BCMG PTLY CLDY AFTN) CLL T>B/A B/B 66/39 65/42 3002 IAH T>B/A B/B 67/41 65/43 3002 GLS T>B/A B/B 66/52 63/55 4002
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 10:29 PM CST | Severe Thunderstorm Warning | HGX | Burleson | 61 min |
| Feb 25, 10:49 PM CST | Severe Thunderstorm Warning | HGX | Brazos | 61 min |
| Feb 25, 11:25 PM CST | Severe Thunderstorm Warning | HGX | Washington | 60 min |
| Feb 25, 11:38 PM CST | Severe Thunderstorm Warning | HGX | Grimes, Madison | 62 min |
| Feb 25, 11:43 PM CST | Severe Thunderstorm Warning | HGX | Houston | 62 min |
| Feb 26, 12:01 AM CST | Severe Thunderstorm Warning | HGX | Montgomery, Walker | 59 min |
| Feb 26, 12:25 AM CST | Severe Thunderstorm Warning | HGX | Waller | 65 min |
| Feb 26, 12:37 AM CST | Severe Thunderstorm Warning | HGX | San Jacinto, Trinity | 68 min |
| Feb 26, 1:25 AM CST | Severe Thunderstorm Warning | HGX | Colorado | 60 min |
| Feb 26, 1:26 AM CST | Severe Thunderstorm Warning | HGX | Polk | 64 min |
| Feb 26, 2:40 AM CST | Flash Flood Warning | HGX | Washington | 3 hr |
| Feb 26, 3:11 AM CST | Flash Flood Warning | HGX | Austin | 3 hr |
| Feb 26, 4:36 AM CST | Severe Thunderstorm Warning | HGX | Colorado, Wharton | 59 min |
| Feb 26, 4:39 AM CST | Severe Thunderstorm Warning | HGX | Jackson | 36 min |
| Feb 26, 4:43 AM CST | Flash Flood Warning | HGX | Montgomery | 112 min |
| Feb 26, 5:23 AM CST | Severe Thunderstorm Warning | HGX | Matagorda | 32 min |
| Feb 26, 5:46 AM CST | Severe Thunderstorm Warning | HGX | Brazoria | 29 min |
| Feb 26, 6:09 AM CST | Severe Thunderstorm Warning | HGX | Galveston | 46 min |
| Feb 26, 6:21 AM CST | Severe Thunderstorm Warning | HGX | Chambers | 44 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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.