Alert archive / Texas / Wind Chill Advisories in 2021
Wind Chill Advisory 2, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind chill advisory at Feb 18, 2021, 2:34 PM CST for 12 counties in Texas. It took effect at Feb 19, 2021, 12:00 AM CST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2021, 2:34 PM CST (20:34 UTC)
- In effect from
- Feb 19, 2021, 12:00 AM CST
- Expired
- Feb 19, 2021, 8:00 AM CST
- In force
- 8 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Austin County, TX, Brazos County, TX, Burleson County, TX, Colorado County, TX, Grimes County, TX, Houston County, TX, Madison County, TX, Montgomery County, TX, Trinity County, TX, Walker County, TX, Waller County, TX, Washington County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.6 hours before the alert went out and 269 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
- 6 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 458 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
173 WWUS44 KHGX 182034 WSWHGX URGENT - WINTER WEATHER MESSAGE National Weather Service Houston/Galveston TX 234 PM CST Thu Feb 18 2021 ...Winter Weather Advisory has been canceled... ...Wind Chill Advisory in effect from midnight through 800 AM CST Friday morning... .Very cold temperatures coupled with north winds will produce wind chill values between 5 and 15 degrees later tonight. Use caution and dress warmly if spending time outdoors later tonight. TXZ163-164-176-177-195>199-210>212-191100- /O.CAN.KHGX.WW.Y.0003.000000T0000Z-210219T0000Z/ /O.NEW.KHGX.WC.Y.0002.210219T0600Z-210219T1400Z/ Houston-Trinity-Madison-Walker-Burleson-Brazos-Washington-Grimes- Montgomery-Colorado-Austin-Waller- Including the cities of Crockett, Trinity, Groveton, Madisonville, Huntsville, Caldwell, Somerville, College Station, Bryan, Brenham, Navasota, Conroe, The Woodlands, Columbus, Eagle Lake, Weimar, Sealy, Bellville, Hempstead, Prairie View, Brookshire, and Waller 234 PM CST Thu Feb 18 2021 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST FRIDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Very cold temperatures coupled with north winds will produce wind chill values between 5 and 15 degrees across the Advisory area. * WHERE...Inland areas of Southeast Texas. * WHEN...Through Thursday morning for the wind chill advisory and 6 pm for the winter weather advisory. * IMPACTS...A Wind Chill Advisory means that very cold air and strong winds will combine to generate low wind chills. This will result in frost bite and lead to hypothermia if precautions are not taken. If you must venture outdoors...make sure you wear a hat and gloves. Roadways and other surfaces will remain ice covered and very slippery. * ADDITIONAL DETAILS...If you must go outside...remember that several layers of clothes will keep your warmer than a single heavy coat. A hat is also important as 20 percent of body heat loss is through the head. Be particularly careful with portable heaters...there is danger of fire or poisonous fumes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel will remain difficult across northern portions of the area. The latest road conditions for Texas can be found at drivetexas.org. A Wind Chill Advisory means that very cold air and strong winds will combine to generate low wind chills. This will result in frost bite and lead to hypothermia if precautions are not taken. If you must venture outdoors...make sure you wear a hat and gloves. && $$ TXZ178-179-182145- /O.CAN.KHGX.WW.Y.0003.000000T0000Z-210219T0000Z/ San Jacinto-Polk- Including the cities of Shepherd, Coldspring, Livingston, and Corrigan 234 PM CST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... WHAT...Snow flurries have waned and the threat for additional winter precipitation has ended. Additional wintry precipitation is not expected, therefore the Winter Weather Advisory has been canceled. $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 4:30 AM CST | Wind Chill Advisory | HGX | Brazos, Burleson, Grimes, Houston, Madison, Washington | 6 hr |
| Feb 18, 7:40 AM CST | Hard Freeze Warning | HGX | Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 15 more | 25 hr |
| Feb 18, 2:34 PM CST | Hard Freeze Watch | HGX | Austin, Brazos, Burleson, Colorado, Grimes, Houston and 5 more | 14 hr |
Nearby
Wind Chill Advisories in Texas, 2021Every wind chill advisory in 2021
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.