Alert archive / Texas / Special Weather Statements in 2019
Special Weather Statement, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this special weather statement at Jan 19, 2019, 2:12 AM CST for San Jacinto 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 outline as issued.
The facts
- Issued
- Jan 19, 2019, 2:12 AM CST (08:12 UTC)
- Expired
- Jan 19, 2019, 3:00 AM CST
- In force
- 48 min
- Issued by
- NWS Houston/Galveston, TX
County San Jacinto County, TX
The radar
The Houston radar (KHGX), 117 km from the middle of the area, began a volume at 08:11 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, 8.2 hours before the alert went out and 207 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
- 419 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 491 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.6
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jan 18, 11:45 PM CST, 2 hours 27 minutes earlier.
Area forecast discussion, Jan 18, 11:45 PM CST, 2 hours 27 minutes before
Area Forecast Discussion
National Weather Service Houston/Galveston TX
1145 PM CST Fri Jan 18 2019
.AVIATION...
Brief periods of light rain with the possible rumble of thunder
just downstream of a passing cold front through the overnight
early Saturday morning hours. Frontal timing remains the same of
this front being through the northern hubs by 3 AM, city by 5 or
6 AM and off the Galveston Island coast by 8 AM. Strong, gusty
north winds in the wake of this front, clearing skies through
early afternoon. 31
&&
.PREV DISCUSSION... /ISSUED 947 PM CST Fri Jan 18 2019/
DISCUSSION...
Seeing an area of persistent scattered showers this evening
generally from Houston off to the NE near Livingston. The cold
front is approaching north and central Texas and is expected to
move across southeast Texas during the early morning hours. High
res model guidance is still developing a broken line of storms
along the pre-frontal trough just after midnight across western
portions of SE Texas. This line moves E-SE and to the coast
between 4 and 6 AM. The cold front lags the convection by an hour
or 2. The current forecast appears on track. Only chgs being made
this eve are a few adjustments to temps overnight. 33
PREV DISCUSSION... /ISSUED 610 PM CST Fri Jan 18 2019/
AVIATION...
Ample saturation of the lower levels with weaker south to
southwesterlies as the region falls south of an eastern Texas
warm front will continue to promote IFR to LIFR ceilings.
Extremes will be as low as VLIFR to as high as MVFR just
downstream of an approaching cold front. Periods of light
precipitation will occur ahead of this approaching front, mainly
showers with possible elevated thunder before sunrise. The front
is timed to pass across our northern terminals shortly after
midnight, through the city around sunrise and to the coast by 9 AM.
Clouds will begin to lift to VFR within an hour or two of the
front's passing, thin and scatter out through the afternoon hours.
31
&&
.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL) 44 49 30 52 36 / 50 10 0 0 0
Houston (IAH) 51 56 31 53 37 / 60 10 0 0 0
Galveston (GLS) 53 57 37 51 47 / 50 10 0 0 0
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...Small Craft Advisory from 9 AM to 6 PM CST Saturday for the
following zones: Galveston Bay...Matagorda Bay.
SMALL CRAFT SHOULD EXERCISE CAUTION until 9 AM CST Saturday for
the following zones: Coastal waters from Freeport to
Matagorda Ship Channel TX out 20 NM...Coastal waters from
High Island to Freeport TX out 20 NM...Galveston Bay...
Matagorda Bay.
Small Craft Advisory from 9 AM Saturday to midnight CST Saturday
night for the following zones: Coastal waters from Freeport
to Matagorda Ship Channel TX out 20 NM...Coastal waters
from High Island to Freeport TX out 20 NM.
Small Craft Advisory until 9 AM CST Saturday for the following
zones: Waters from Freeport to Matagorda Ship Channel TX
from 20 to 60 NM...Waters from High Island to Freeport TX
from 20 to 60 NM.
Gale Warning from 9 AM Saturday to midnight CST Saturday night
for the following zones: Waters from Freeport to Matagorda
Ship Channel TX from 20 to 60 NM...Waters from High Island
to Freeport TX from 20 to 60 NM.
&&
Discussion...33
Aviation/Marine...31Hazardous weather outlook, Jan 18, 4:38 AM CST, 21 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Houston/Galveston TX 438 AM CST Fri Jan 18 2019 TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313- 335>338-436-191045- Austin-Brazos-Burleson-Chambers-Coastal Brazoria- Coastal Galveston-Coastal Harris-Coastal Jackson- Coastal Matagorda-Colorado-Fort Bend-Grimes-Houston- Inland Brazoria-Inland Galveston-Inland Harris-Inland Jackson- Inland Matagorda-Madison-Matagorda Islands-Montgomery- Northern Liberty-Polk-San Jacinto-Southern Liberty-Trinity-Walker- Waller-Washington-Wharton- 438 AM CST Fri Jan 18 2019 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...This morning fog this morning will be locally dense in patches. Tonight a cold front will bring showers and a few thunderstorms. Strong gusty winds and brief heavy downpours are possible with a few of the stronger storms. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Strong north to northwesterly winds will usher in much colder air Saturday. A wind advisory may be needed. A freeze is expected most areas Saturday night. Otherwise no hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. GMZ330-335-350-355-370-375-TXZ437-438-191045- Brazoria Islands- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Galveston Bay-Galveston Island and Bolivar Peninsula- Matagorda Bay- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 438 AM CST Fri Jan 18 2019 ...Gale Watch in Effect for Gulf Coastal Waters... This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Patchy fog will be found over the waters. Could reducing visibilites to less than 1 nm in a few spots. Tonight strong cold front crosses the waters late accompanied by scattered showers and thunderstorms. Some storms may contain gusty winds. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A cold front will move across the coastal waters early Saturday morning. A strong offshore flow will develop in the wake of the front and a Small Craft Advisory or Gale Warning will likely be required. The strong offshore wind may push water away from the coast and a Low Water Advisory may also be needed Sat night into Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Special weather statement, Jan 19, 12:51 AM CST, 1 hour 21 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
1251 AM CST SAT JAN 19 2019
TXZ210-211-190730-
Colorado TX-Austin TX-
1251 AM CST SAT JAN 19 2019
...Strong Thunderstorm Entering Colorado County...
At 1251 AM CST, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Weimar, or 8 miles south of La Grange, moving east
at 55 mph.
Half inch hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Bellville, Columbus, Weimar, Industry, Frelsburg, New Ulm and Cat
Spring.
LAT...LON 2980 9671 2995 9658 3000 9628 2966 9626
2969 9681
TIME...MOT...LOC 0651Z 267DEG 47KT 2980 9684Special weather statement, Jan 19, 1:45 AM CST, 27 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
145 AM CST SAT JAN 19 2019
TXZ199-200-210>213-227-237-313-190830-
Inland Brazoria TX-Waller TX-Northern Liberty TX-Coastal Harris TX-
Colorado TX-Inland Harris TX-Montgomery TX-Fort Bend TX-Austin TX-
145 AM CST SAT JAN 19 2019
...Strong Thunderstorms Moving through Waller and Austin Counties
Toward Harris...
At 144 AM CST, Doppler radar was tracking strong thunderstorms along
a line extending from Prairie View to 6 miles north of San Felipe to
6 miles west of Sealy. Movement was east at 45 mph.
Dime size hail and winds in excess of 40 mph will be possible with
these storms.
Locations impacted include...
Northwestern Pasadena, western Pearland, Sugar Land, Missouri City,
northern Rosenberg, Stafford, South Houston, Bellaire, Humble, West
University Place, Katy, Richmond, Galena Park, Tomball, Jacinto City,
Jersey Village, Sealy, Hempstead, Prairie View and northwestern
Manvel.
LAT...LON 3006 9505 2972 9515 2946 9545 2969 9636
2990 9611 3017 9604
TIME...MOT...LOC 0744Z 277DEG 40KT 3009 9602 2989 9607 2974 9626Special weather statement, Jan 19, 2:12 AM CST, 0 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
212 AM CST SAT JAN 19 2019
TXZ178-179-199-190900-
San Jacinto TX-Polk TX-Montgomery TX-
212 AM CST SAT JAN 19 2019
...STRONG THUNDERSTORMS WITH BRIEF GUSTY WINDS POSSIBLE
At 211 AM CST, Doppler radar was tracking a strong thunderstorm 10
miles east of New Waverly, or 11 miles northeast of Willis, moving
northeast at 45 mph.
Winds in excess of 30 mph will be possible with this storm.
Locations impacted include...
Northern Conroe, Willis, Livingston, Shepherd, Panorama Village,
Coldspring, Goodrich, Lake Livingston State Park, West Livingston and
Evergreen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3034 9549 3046 9554 3051 9545 3051 9536
3056 9535 3079 9493 3049 9490
TIME...MOT...LOC 0811Z 244DEG 41KT 3049 9530The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 19, 12:51 AM CST | Special Weather Statement | HGX | Colorado | 39 min |
| Jan 19, 1:10 AM CST | Severe Thunderstorm Warning | HGX | Austin, Colorado | 35 min |
| Jan 19, 1:45 AM CST | Special Weather Statement | HGX | Harris, Waller | 45 min |
| Jan 19, 2:47 AM CST | Special Weather Statement | HGX | San Jacinto | 28 min |
| Jan 19, 3:04 AM CST | Special Marine Warning | HGX | 116 min | |
| Jan 19, 3:04 AM CST | Special Weather Statement | HGX | Chambers, Liberty | 56 min |
| Jan 19, 3:53 AM CST | Severe Thunderstorm Warning | HGX | Brazoria, Galveston | 22 min |
| Jan 19, 3:58 AM CST | Wind Advisory | HGX | Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 17 more | 18 hr |
| Jan 19, 4:03 AM CST | Low Water Advisory | HGX | 39 hr | |
| Jan 19, 4:03 AM CST | Small Craft Advisory | HGX | 29 hr | |
| Jan 19, 4:13 AM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 21 min |
| Jan 19, 4:18 AM CST | Special Marine Warning | HGX | 87 min | |
| Jan 19, 1:17 PM CST | Small Craft Advisory | HGX | 10 hr |
Nearby
Special Weather Statements in Texas, 2019Every special weather statement in 2019
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.