Alert archive / Texas / Wind Advisories in 2015
Wind Advisory 3, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Feb 1, 2015, 8:24 PM CST for 4 counties in Texas. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Feb 1, 2015, 8:24 PM CST (02:24 UTC)
- Expired
- Feb 2, 2015, 3:00 AM CST
- In force
- 7 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Brazoria County, TX, Chambers County, TX, Galveston County, TX, Matagorda County, TX
The radar
The Houston radar (KHGX), 30 km from the middle of the area, began a volume at 02:25 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, 2.4 hours before the alert went out and 219 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
- 431 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
216 WWUS74 KHGX 020224 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 824 PM CST SUN FEB 1 2015 ...WIND ADVISORY IN EFFECT UNTIL 3 AM CST MONDAY FOR THE COASTAL COUNTIES... .NORTH WINDS OF 20 TO 25 MPH WILL DEVELOP ALONG THE COASTAL COUNTIES THIS EVENING. THESE WINDS WILL DIMINISH OVERNIGHT. TXZ214-236>238-020900- /O.NEW.KHGX.WI.Y.0003.150202T0224Z-150202T0900Z/ BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA- INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY... FREEPORT...FRIENDSWOOD...GALVESTON...LAKE JACKSON...LEAGUE CITY... MONT BELVIEU...PALACIOS...PEARLAND...TEXAS CITY...WINNIE 824 PM CST SUN FEB 1 2015 ...WIND ADVISORY IN EFFECT UNTIL 3 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 3 AM CST MONDAY. * EVENT...WIND ADVISORY FOR NORTH WINDS OF 20 TO 25 MPH. * TIMING...8 PM THIS EVENING THROUGH 3 AM CST MONDAY. * IMPACT...VEHICLES TRAVELING ALONG EAST-TO-WEST HIGHWAYS. 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 ROADWAYS. && $$
1 follow-up statement
223 WWUS74 KHGX 020918 NPWHGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 318 AM CST MON FEB 2 2015 ...WIND ADVISORY IS IN EFFECT... TXZ214-236>238-021400- /O.EXP.KHGX.WI.Y.0003.000000T0000Z-150202T0900Z/ /O.NEW.KHGX.WI.Y.0004.150202T0918Z-150202T1400Z/ BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA- INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY... FREEPORT...FRIENDSWOOD...GALVESTON...LAKE JACKSON...LEAGUE CITY... MONT BELVIEU...PALACIOS...PEARLAND...TEXAS CITY...WINNIE 318 AM CST MON FEB 2 2015 ...WIND ADVISORY IN EFFECT UNTIL 8 AM CST THIS MORNING... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM CST THIS MORNING. * EVENT...NORTH WINDS 20 TO 30 MPH. GUSTS TO NEAR 40 MPH AT THE COAST. * TIMING...THROUGH 8 AM. * IMPACT...VEHICLES MAY HAVE DIFFICULTY MAINTAINING LANES IF TRAVELING ALONG EAST-TO-WEST ORIENTED ROADS AND OVERPASSES. OUTDOOR EQUIPMENT NOT SECURED MAY BE LIFTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... DRIVERS OF VANS...CAMPERS...TRAILERS...AND OTHER HIGH-PROFILE VEHICLES SHOULD BE ALERT TO THE DANGER OF THESE WINDS... ESPECIALLY WHEN DRIVING ALONG EAST-TO-WEST ORIENTED ROADWAYS. && $$ TXZ213-021400- /O.NEW.KHGX.WI.Y.0004.150202T0918Z-150202T1400Z/ HARRIS- INCLUDING THE CITIES OF...HOUSTON...HUMBLE...KATY...PASADENA... TOMBALL 318 AM CST MON FEB 2 2015 ...WIND ADVISORY IN EFFECT UNTIL 8 AM CST THIS MORNING... THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM CST THIS MORNING. * EVENT...NORTH WINDS 20 TO 30 MPH. GUSTS TO NEAR 35 MPH AT THE BAY. * TIMING...THROUGH 8 AM. * IMPACT...VEHICLES MAY HAVE DIFFICULTY MAINTAINING LANES IF TRAVELING ALONG EAST-TO-WEST ORIENTED ROADS AND OVERPASSES. OUTDOOR EQUIPMENT NOT SECURED MAY BE LIFTED. 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. && $$
What forecasters said that day
The local office's own words before this wind advisory 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 wind advisory went out at Feb 1, 8:15 PM CST, 9 minutes earlier.
Area forecast discussion, Feb 1, 8:15 PM CST, 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
815 PM CST SUN FEB 1 2015
.DISCUSSION...
THE COLD FRONT WAS MOVING OFF THE COAST AT 8 PM. WINDS BEHIND THE
FRONT WERE ALREADY REACHING WIND ADVISORY CRITERIA WEST OF
FREEPORT...AND CURRENT MODEL DATA AND GUIDANCE FORECAST THE
COASTAL WINDS TO REACH WIND ADVISORY CRITERIA BY 9 PM...AND
PERSIST THROUGH 3 AM. BECAUSE OF THIS...WILL ISSUE A WIND
ADVISORY FOR THE IMMEDIATE COASTAL COUNTIES. WILL ALSO UPDATE THE
FORECAST FOR WINDS AND TO END THE RAIN CHANCES OVER THE INLAND
AREAS.
40
&&
.PREV DISCUSSION... /ISSUED 547 PM CST SUN FEB 1 2015/
DISCUSSION...
00Z TAF DISCUSSION IN AVIATION SECTION.
AVIATION...
PRE-FRONTAL TROUGH IS WORKING THROUGH KSGR/KHOU WITH A FEW
SHOWERS AND ISO TSRA OVER KHOU. THIS ALL SHOULD BE MOVING OUT
QUICKLY. COLD FRONT WAS PUSHING THROUGH CONROE TO COLUMBUS. FRONT
SHOULD REACH HOUSTON TERMINALS THE NEXT HOUR OR TWO. TAFS START
WITH FROPA IN PLACE EVEN THOUGH IT MAY TAKE A LITTLE TIME FOR
WINDS TO INCREASE. WINDS ARE ALREADY GUSTY AT KCLL. ALL TAF SITES
SHOULD REMAIN VFR THROUGH THE TAF PERIOD WITH FRONTAL PASSAGE.
MAIN ISSUE WILL BE WINDS ALONG THE COAST ESPECIALLY KGLS/KLBX AND
MAYBE KHOU. GLS MAY HAVE GUSTS TO GALE FORCE WITH INLAND SITES
SLIGHTLY LOWER. WINDS SHOULD DECREASE 09-12Z MON AND LIKELY REMAIN
AROUND 10-15KTS FOR THE REST OF THE DAY.
39
&&
.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 35 49 35 57 44 / 0 0 0 30 40
HOUSTON (IAH) 39 51 36 55 45 / 10 0 0 50 60
GALVESTON (GLS) 42 50 43 55 47 / 10 0 0 60 70
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...WIND ADVISORY UNTIL 3 AM CST MONDAY FOR THE FOLLOWING ZONES:
BRAZORIA...CHAMBERS...GALVESTON...MATAGORDA.
GM...SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY
FOR THE FOLLOWING ZONES: GALVESTON BAY...MATAGORDA BAY.
SMALL CRAFT SHOULD EXERCISE CAUTION FROM 6 AM CST MONDAY THROUGH
MONDAY MORNING FOR THE FOLLOWING ZONES: GALVESTON BAY...
MATAGORDA BAY.
SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO 10 AM CST MONDAY
FOR THE FOLLOWING ZONES: WATERS FROM FREEPORT TO THE
MATAGORDA SHIP CHANNEL 20 NM TO 60 NM...WATERS FROM
FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM...WATERS
FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM...WATERS FROM HIGH
ISLAND TO FREEPORT OUT 20 NM.
&&
DISCUSSION...40
AVIATION/MARINE...39Hazardous weather outlook, Feb 1, 4:01 PM CST, 4 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 401 PM CST SUN FEB 1 2015 TXZ163-164-176>179-195>200-210>214-226-227-235>238-021400- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA- MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON- WHARTON- 401 PM CST SUN FEB 1 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A WIND ADVISORY MAY BE REQUIRED LATER TONIGHT ALONG THE COASTAL COUNTIES IN THE WAKE OF A PASSING COLD FRONT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A STORM SYSTEM IS FORECAST TO APPROACH THE REGION LATE TUESDAY AND WEDNESDAY. WE WILL BE KEEPING AN EYE OUT FOR THE POTENTIAL OF LOCALIZED HEAVY RAINFALL CLOSER TO THE COAST DURING THIS TIME PERIOD. HOWEVER...THIS WILL BE HIGHLY DEPENDENT OF THE EVENTUAL TIMING AND TRACK OF THIS SYSTEM AND FORECAST CONFIDENCE REGARDING BOTH OF THOSE PARAMETERS IS CURRENTLY QUITE LOW. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. GMZ330-335-350-355-370-375-021400- GALVESTON BAY-MATAGORDA BAY- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM- WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM- 401 PM CST SUN FEB 1 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A STRONG FRONT WILL PUSH OFF THE COAST TONIGHT. NORTH WINDS MAY GUST TO GALE FORCE IN ITS WAKE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SMALL CRAFT ADVISORIES ARE PROBABLE MONDAY WITH CONTINUED MODERATE TO STRONG OFFSHORE WINDS AND ELEVATED SEAS. UNSETTLED WEATHER AND MARINE CONDITIONS ARE EXPECTED LATE TUESDAY AND WEDNESDAY IN ASSOCIATION WITH A DEVELOPING COASTAL TROUGH. INCREASING CHANCES OF PRECIPITATION ALONG WITH HIGHER WINDS AND SEAS CAN BE EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 1, 6:26 PM CST | Special Marine Warning | HGX | 34 min | |
| Feb 2, 3:18 AM CST | Wind Advisory | HGX | Brazoria, Chambers, Galveston, Harris, Matagorda | 5 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.