Alert archive / Texas / Wind Advisories in 2011
Wind Advisory 9, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Apr 9, 2011, 4:30 AM CDT for 8 counties in Texas. It took effect at Apr 9, 2011, 11:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 9, 2011, 4:30 AM CDT (09:30 UTC)
- In effect from
- Apr 9, 2011, 11:00 AM CDT
- Expired
- Apr 9, 2011, 7:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Austin County, TX, Brazos County, TX, Burleson County, TX, Colorado County, TX, Jackson County, TX, Matagorda County, TX, Washington County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 128 km from the middle of the area, began a volume at 09:29 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 00:00Z, 9.5 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
- 2360 J/kg
- Mixed-layer CIN
- -268 J/kg
- Mixed-layer LCL
- 1110 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
451 WWUS74 KHGX 090930 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 430 AM CDT SAT APR 9 2011 ...WIND ADVISORY IN EFFECT FROM 11 AM THROUGH 7 PM FOR THE WESTERN PORTIONS OF SOUTHEAST TEXAS... .STRONG SOUTHERLY WINDS WILL BE TAP THIS AFTERNOON AS TEMPERATURES WARM ABOVE 80 DEGREES. SUSTAINED WINDS OF 15 TO 25 MPH WITH GUSTS NEAR 30 MPH CAN BE EXPECTED. TXZ195>197-210-211-226-235-236-091730- /O.NEW.KHGX.WI.Y.0009.110409T1600Z-110410T0000Z/ AUSTIN-BRAZOS-BURLESON-COLORADO-JACKSON-MATAGORDA-WASHINGTON- WHARTON- INCLUDING THE CITIES OF...BAY CITY...BELLVILLE...BRENHAM... BRYAN...CALDWELL...COLLEGE STATION...COLUMBUS...EAGLE LAKE... EDNA...EL CAMPO...LAKE SOMERVILLE...PALACIOS...PIERCE...SEALY... WEIMAR...WHARTON 430 AM CDT SAT APR 9 2011 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING. * TIMING...GUSTY WINDS WILL DEVELOP SHORTLY AFTER SUNRISE WITH SUSTAINED WINDS INCREASING TO AROUND 20 MPH BY 11 AM. THE WINDS SHOULD BEGIN TO RELAX AROUND 6 PM THOUGH GUSTY CONDITIONS MAY CONTINUE THROUGH LATE EVENING. * WINDS...SUSTAINED WINDS INCREASING TO 15 TO 25 MPH WITH GUSTS NEAR 30 MPH. * IMPACTS...THE STRONG WINDS MAY MAKE DRIVING DIFFICULT ON EAST TO WEST ROADS ESPECIALLY ON ELEVATED ROADS. AN ELEVATED FIRE DANGER WILL EXIST WITH THE STRONG WINDS AND AFTERNOON HUMIDITIES FALLING BELOW 50 PERCENT. BOATERS SHOULD USE CAUTION ON OPEN WATER. 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. && $$
1 follow-up statement
489 WWUS74 KHGX 092021 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 321 PM CDT SAT APR 9 2011 ...WIND ADVISORY IN EFFECT UNTIL 7 PM FOR THE WESTERN PORTIONS OF SOUTHEAST TEXAS... .STRONG SOUTHERLY WINDS BETWEEN 20 AND 35 MPH WILL PERSIST INTO THE EVENING HOURS. TXZ195>197-210-211-226-235-236-100000- /O.CON.KHGX.WI.Y.0009.000000T0000Z-110410T0000Z/ AUSTIN-BRAZOS-BURLESON-COLORADO-JACKSON-MATAGORDA-WASHINGTON- WHARTON- INCLUDING THE CITIES OF...BAY CITY...BELLVILLE...BRENHAM... BRYAN...CALDWELL...COLLEGE STATION...COLUMBUS...EAGLE LAKE... EDNA...EL CAMPO...LAKE SOMERVILLE...PALACIOS...PIERCE...SEALY... WEIMAR...WHARTON 321 PM CDT SAT APR 9 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WINDS...SOUTH AT 20 TO 35 MPH AND GUSTY. * IMPACTS...THE STRONG WINDS MAY MAKE DRIVING DIFFICULT ON EAST TO WEST ORIENTED ROADS. AN ELEVATED FIRE DANGER WILL EXIST WITH THE STRONG WINDS. BOATERS SHOULD USE CAUTION ON OPEN WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... DRIVERS OF VANS...CAMPERS...TRAILERS...AND OTHER HIGH-PROFILE VEHICLES SHOULD BE ALERT TO THE DANGER OF THESE WINDS... ESPECIALLY WHEN DRIVING ALONG EAST TO WEST ORIENTED ROADS. && $$
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.