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Posts Tagged ‘winter weather advisory’

8 AM Weather Update

Texas Radar - 7:25 AM

An upper level disturbance currently moving across the state is responsible for the widespread shower and thunderstorm activity that has affected most of Texas overnight. After North Texas received a light show overnight with widespread thunderstorm activity, most of the thunderstorms are now confined closer to the Gulf Coast in Southeast Texas. Widespread rainfall will continue across North Texas, with the possibility of a break later this morning before picking back up again this evening. Rain will begin to change over to snow across portions of West Texas as a major winter storm gets going. See our update from last evening regarding more specific snow discussions. 

Severe Thunderstorm approaching Fort Bend County, Texas (7:43 AM)

At 7:45 AM, a Severe Thunderstorm Warning was in effect for Colorado, Austin, Wharton, Waller, and Fort Bend Counties in Southeast Texas for a line of severe thunderstorms capable of producing large hail and damaging winds. This image shows one particular storm in that line that was located about ten miles east of Eagle Lake at the time of this update. This particular thunderstorm is exhibiting supercellular characteristics and is one mean looking storm.

Severe Weather Outlook for January 9, 2011

The Storm Prediction Center has issued a slight risk of severe weather, the standard risk of severe weather, for parts of Southeast Texas today. A few, brief tornadoes along with damaging winds will be possible within this severe weather risk. The risk will likely remain confined closer to the coast where the highest instability amounts will reside. Major cities in the severe weather risk include Victoria, the Houston Metro, Galveston, and Beaumont.

Winter Storm Watch Extended Eastward

0Z NAM: Snowfall accumulation output

The 0Z NAM is pretty bullish in regards to snowfall accumulation with this upcoming event. The NAM suggests a large area of 8+ inch snow amounts with locations just northeast of Big Spring and around to Snyder having 12 to 16 inches of snow. This is only output from one specific model, but it is concerning because some of the higher resolution model guidance is suggesting some pretty high snow accumulations. It’s likely if we do see extremely high snow accumulations (over 8 inches) it will be localized to an area that ends up being under a deformation/convective band, which simply put it is a area heavy snowfall ends up training over the same areas, giving a localized area extremely high snow accumulations. Trying to predict these heavier snow pockets is nearly impossible until the event has started.

Winter Storm Advisories - 9:40 PM

These are the Winter Storm products as of 9:45 PM on January 8th. The only change with these from our 6 PM update is that the National Weather Service office in San Angelo has extended the Winter Storm Watch another row of counties east. This Winter Storm Watch now includes San Angelo and Abilene. A watch means that there is the potential for significant winter weather within the next 36 hours that could create dangerous travel conditions. For more information on the definition of each of these products, see our discussion from 6 PM.  The Rain/Snow line should remain 70 miles west of Fort Worth, meaning D/FW and the Interstate 35 Corridor will only see rain with this system

Winter Storm poised to slam West Texas

Winter Weather Products at 6 PM on January 8, 2012

The National Weather Services offices in West Texas are going to be busy over the next 36 hours as a significant winter storm is expected to impact West Texas. The graphic shown above is displaying the current Winter Weather Products in a county-based product. Here’s the same information displayed on a zoomed-in graphic with county name overlays.

The purple-shaded counties have been placed under a Winter Weather Advisory. This is not as significant as a Winter Storm Warning and means that minor snow accumulations are possible which could create travel difficulties. Snow amounts of 1 to 3 inches are likely in the Winter Weather Advisory.

The pink-shaded counties have been placed under a Winter Storm Warning, which is more significant then a Winter Weather Advisory. Those under a Winter Storm Warning can expect snow accumulations of at least four inches. Right now, the Midland NWS office is calling for four to seven inches of snow in their County Warning Area with some locations receiving up to ten inches. Locations under a Winter Storm Warning include but are not limited to Aspermont, Snyder, Big Spring, Midland, Odessa, Fort Stckton, and Fort Davis. Significant travel disruptions are likely and vehicles that do not have four wheel drive capability will likely become incapacitated as major snow accumulations are likely on all roadways.

The San Angelo NWS has elected to issue a Winter Storm Watch for three counties on the eastern edge of this Winter Storm. Those counties are Haskell, Jones, and Coke. Those counties are identified by the blue-shaded outlines. A Winter Storm Watch means there is the potential of major travel disruptions, but the potential is not high enough to warrant a Winter Storm Warning at this time. It’s likely that those counties will be placed under a Winter Weather Advisory later tonight or early tomorrow. In addition, the Amarillo NWS has indicated that they will likely be issuing a Winter Weather Advisory for a portion of their county warning area later tonight. We’ll bring you the latest as new warnings/advisories are issued.

Coldest Morning of Winter so far…

6 AM Temperatures - Northern Half of Texas

6 AM Temperatures - Southern Half of Texas

Its a very cold morning across Texas with all of the state, except deep south Texas, at or below freezing. The coldest temperatures can be found across the Caprock and Texas Panhandle where temperatures are in the single digits and lower teens. Low temperatures from 18 to 29 degrees can be found across Northern and Central Texas, including the hill country. Folks closer to the coast are closer to 30 degrees, which is still mighty cold for those parts. We’ll warm up later this morning and should enjoy a pleasant day across Texas. Enjoy your Wednesday!

 

Very cold temperatures for Tonight

10 PM Temperatures across TexasA very cold night is in store for all of Texas as deep, artic air continues to filter south across the state. Amarillo was already down to ten degrees at 10 PM and it’s possible they approach the negative territory by morning. Several locations in the panhandle may end up at or below zero tonight. It won’t be that cold further south, but low temperatures from 15 to 25 degrees are possible along/north of Interstate 20 with 20-30 degree lows from I-10 and points northward. Even extreme south Texas could hit freezing tonight!

 

Chase Status

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