Alert archive / Texas / Wind Advisories in 2012
Wind Advisory 8, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Apr 15, 2012, 11:58 AM CDT for 9 counties in Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 15, 2012, 11:58 AM CDT (16:58 UTC)
- Expired
- Apr 15, 2012, 3:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Brazoria County, TX, Chambers County, TX, Fort Bend County, TX, Galveston County, TX, Harris County, TX, Jackson County, TX, Liberty County, TX, Matagorda County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 43 km from the middle of the area, began a volume at 16:59 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 12:00Z, 5.0 hours before the alert went out and 237 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
- 437 J/kg
- Mixed-layer CIN
- -281 J/kg
- Mixed-layer LCL
- 655 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
061 WWUS74 KHGX 151658 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1158 AM CDT SUN APR 15 2012 ...WIND ADVISORY IN EFFECT UNTIL 3 PM... .STRONG GUSTY SOUTHERLY WINDS WILL CONTINUE THROUGH MID AFTERNOON THEN WEAKEN. TXZ200-213-214-226-227-235>238-152000- /O.NEW.KHGX.WI.Y.0008.120415T1658Z-120415T2000Z/ BRAZORIA-CHAMBERS-FORT BEND-GALVESTON-HARRIS-JACKSON-LIBERTY- MATAGORDA-WHARTON- INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY... CLEVELAND...DAYTON...EDNA...EL CAMPO...FREEPORT...FRIENDSWOOD... GALVESTON...HOUSTON...HUMBLE...KATY...LAKE JACKSON... LEAGUE CITY...LIBERTY...MISSOURI CITY...MONT BELVIEU...PALACIOS... PASADENA...PEARLAND...PIERCE...RICHMOND...ROSENBERG... SUGAR LAND...TEXAS CITY...TOMBALL...WHARTON...WINNIE 1158 AM CDT SUN APR 15 2012 ...WIND ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON. * EVENT...SOUTHERLY WINDS OF 20 TO 25 MPH WITH GUSTS TO 30 TO 35 MPH. * TIMING...WINDS SHOULD BEGIN TO WEAKEN AFTER 3 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... DRIVERS OF VANS...CAMPERS...TRAILERS...AND OTHER HIGH-PROFILE VEHICLES SHOULD BE ALERT TO THE DANGER OF THESE WINDS... ESPECIALLY WHEN DRIVING ALONG EAST TO WEST ORIENTED ROADS. && $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 12:09 PM CDT | Coastal Flood Statement | HGX | Brazoria, Chambers, Galveston, Jackson, Matagorda | 13 hr |
Nearby
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.