Alert archive / Texas / Special Weather Statements in 2018
Special Weather Statement, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this special weather statement at Jan 8, 2018, 1:08 AM CST for Brazoria County, Texas. It was in force for 37 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 8, 2018, 1:08 AM CST (07:08 UTC)
- Expired
- Jan 8, 2018, 1:45 AM CST
- In force
- 37 min
- Issued by
- NWS Houston/Galveston, TX
County Brazoria County, TX
The radar
The Houston radar (KHGX), 36 km from the middle of the area, began a volume at 07:11 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, 7.1 hours before the alert went out and 230 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
- 123 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 435 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 313 m²/s²
- 0-3 km storm-relative helicity
- 369 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
026
WWUS84 KHGX 080708
SPSHGX
Special Weather Statement
National Weather Service Houston/Galveston TX
108 AM CST MON JAN 8 2018
TXZ237-080745-
Brazoria TX-
108 AM CST MON JAN 8 2018
...Strong Thunderstorm in Brazoria County...
At 107 AM CST, Doppler radar was tracking a strong thunderstorm over
Bonney, or 7 miles northwest of Angleton, moving east at 45 mph.
Winds in excess of 30 mph and some small hail will be possible with
this storm.
Locations impacted include...
Alvin, Danbury, Holiday Lakes, Hillcrest, Liverpool, Bonney,
Chocolate Bayou and Rosharon.
LAT...LON 2922 9559 2930 9558 2939 9546 2939 9518
2931 9513 2919 9515
TIME...MOT...LOC 0707Z 271DEG 38KT 2927 9548
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 9:17 PM CST | Special Weather Statement | HGX | Waller | 43 min |
| Jan 7, 9:47 PM CST | Severe Thunderstorm Warning | HGX | Austin, Harris, Waller | 18 min |
| Jan 7, 10:14 PM CST | Special Weather Statement | HGX | Montgomery | 46 min |
| Jan 7, 10:29 PM CST | Special Weather Statement | HGX | Brazoria | 46 min |
| Jan 7, 11:08 PM CST | Severe Thunderstorm Warning | HGX | Brazoria | 19 min |
| Jan 7, 11:25 PM CST | Special Marine Warning | HGX | 50 min | |
| Jan 7, 11:59 PM CST | Special Marine Warning | HGX | 46 min | |
| Jan 8, 12:12 AM CST | Special Weather Statement | HGX | Harris | 33 min |
| Jan 8, 12:18 AM CST | Special Weather Statement | HGX | Fort Bend | 27 min |
| Jan 8, 12:30 AM CST | Special Weather Statement | HGX | Galveston | 30 min |
| Jan 8, 12:34 AM CST | Special Weather Statement | HGX | Matagorda | 41 min |
| Jan 8, 12:40 AM CST | Special Weather Statement | HGX | Brazoria | 35 min |
| Jan 8, 12:43 AM CST | Special Marine Warning | HGX | 47 min | |
| Jan 8, 12:43 AM CST | Special Weather Statement | HGX | Harris | 47 min |
| Jan 8, 1:00 AM CST | Special Weather Statement | HGX | Harris | 45 min |
| Jan 8, 1:12 AM CST | Special Marine Warning | HGX | 33 min | |
| Jan 8, 1:27 AM CST | Special Marine Warning | HGX | 48 min | |
| Jan 8, 1:39 AM CST | Special Weather Statement | HGX | Chambers | 36 min |
| Jan 8, 1:45 AM CST | Special Marine Warning | HGX | 45 min | |
| Jan 8, 1:55 AM CST | Special Marine Warning | HGX | 35 min | |
| Jan 8, 2:23 AM CST | Special Marine Warning | HGX | 37 min | |
| Jan 8, 2:37 AM CST | Special Marine Warning | HGX | 38 min |
Nearby
Special Weather Statements in Texas, 2018Every special weather statement in 2018
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.