Alert archive / Texas / Wind Advisories in 2012
Wind Advisory 9, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Apr 27, 2012, 10:35 AM CDT for 5 counties in Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Apr 27, 2012, 10:35 AM CDT (15:35 UTC)
- Expired
- Apr 27, 2012, 3:29 PM CDT
- In force
- 5 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Brazoria County, TX, Chambers County, TX, Galveston County, TX, Jackson County, TX, Matagorda County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 15:32 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
Corpus Christi, TX (KCRP), launched 12:00Z, 3.6 hours before the alert went out and 242 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1435 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
635 WWUS74 KHGX 271535 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1035 AM CDT FRI APR 27 2012 ...WIND ADVISORY IN EFFECT THROUGH 4 PM... .A STRONG PRESSURE GRADIENT WILL PRODUCE STRONG SOUTHERLY WINDS THIS AFTERNOON. SUSTAINED SOUTH WINDS AT 20 TO 25 MPH WITH GUSTS TO 35 MPH WILL PREVAIL TROUGH LATE AFTERNOON. THE WINDS WILL GRADUALLY DIMINISH THIS EVENING. TXZ214-235>238-272100- /O.NEW.KHGX.WI.Y.0009.120427T1535Z-120427T2100Z/ BRAZORIA-CHAMBERS-GALVESTON-JACKSON-MATAGORDA- INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY... EDNA...FREEPORT...FRIENDSWOOD...GALVESTON...LAKE JACKSON... LEAGUE CITY...MONT BELVIEU...PALACIOS...PEARLAND...TEXAS CITY... WINNIE 1035 AM CDT FRI APR 27 2012 ...WIND ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON. * TIMING...STRONG WINDS WILL PREVAIL THROUGH 4 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 && $$
1 follow-up statement
073 WWUS74 KHGX 272029 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 329 PM CDT FRI APR 27 2012 ...WIND ADVISORY HAS BEEN CANCELED... .MODERATE TO STRONG SOUTHERLY WINDS WILL PERSIST INTO THE EVENING HOWEVER SPEEDS HAVE FALLEN BELOW ADVISORY CRITERIA. SINCE WIND SPEEDS ARE BELOW ADVISORY CRITERIA...THE WIND ADVISORY HAS BEEN CANCELED. TXZ214-235>238-272130- /O.CAN.KHGX.WI.Y.0009.000000T0000Z-120427T2100Z/ BRAZORIA-CHAMBERS-GALVESTON-JACKSON-MATAGORDA- INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY... EDNA...FREEPORT...FRIENDSWOOD...GALVESTON...LAKE JACKSON... LEAGUE CITY...MONT BELVIEU...PALACIOS...PEARLAND...TEXAS CITY... WINNIE 329 PM CDT FRI APR 27 2012 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS CANCELLED THE WIND ADVISORY. WIND SPEEDS HAVE FALLEN BELOW ADVISORY CRITERIA...THEREFORE...THE WIND ADVISORY HAS BEEN CANCELED. $$
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.