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NWS Update: Much colder air and possible wintery precipitation early next week


 

I'm forwarding this afternoon's update for local governments from NWS which better depicts evolution of the coming blast of arctic air.

Jim Robinson, W5ZY

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-------- Original Message --------
Subject: Fw: NWS Update: Much colder air and possible wintery precipitation early next week
Date: Tue Jan 14 2025 14:35:37 GMT-0600 (Central Standard Time)
From: "Robinson, Jim (Office of Management and Budget)" <jim.robinson@...>
From: NWS Houston - NOAA Service Account <nws.houston@...>
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Good afternoon.? The forecast is still trending much colder to end the weekend and continuing well into next week as a series of cold fronts move across the area.? The leading front is still on tap to arrive Saturday afternoon and bring a return of freezing temperatures Sunday morning generally from the Brazos Valley into the Piney Woods.? However, a reinforcing surge of arctic air is set to arrive Monday into Tuesday which looks to be the coldest air of the season for southeast TX with hard freezes possible down to I10, and maybe even occur closer to the coast.??

In addition to this arctic air intrusion, a weather system may overspread the area and bring the possibility of frozen or freezing precipitation late Monday into Tuesday.? While there is greater confidence in the cold air forecast, the snow/sleet/freezing rain potential is much less certain.? It is also quite possible this weather system develops too far from the area to generate any precipitation over southeast TX.

Given this is a full week out, expect the forecast will evolve as we get closer to the event.??

Bottom Line
- Arctic air is heading towards the area late this weekend into next week.
- Likely to see a return to freezing temperatures perhaps as early as Sunday morning for portions of the area, with near or below freezing temperatures likely area-wide (including the coast) by Tuesday morning.
- Much less certainty regarding the potential to see snow or freezing rain/sleet late Monday and/or Tuesday.
- A lot will change with the forecast this week for early next week, so please stay tuned!

Overview Graphics using current forecast data
Forecast low temperatures Sunday morning:
1-14-2025-DESI-Screenshot (5).jpeg
Forecast low temperatures Monday morning:
1-14-2025-DESI-Screenshot (6).jpeg
25% chance to see low temps this cold Monday morning:
1-14-2025-DESI-Screenshot (7).jpeg

Forecast low temperatures Tuesday morning:
1-14-2025-DESI-Screenshot (3).jpeg
25% chance to see low temps this cold Tuesday morning:
1-14-2025-DESI-Screenshot (4).jpeg

Chances of seeing light freezing rain Monday and Tuesday:
1-14-2025-DESI-Screenshot (2).jpeg
Chances of seeing light snow Monday and Tuesday:
1-14-2025-DESI-Screenshot.jpeg
Resources
  • NWS Houston Galveston Phone Numbers:?(281) 337-5074 ext. 232?or ext. 234
  • NWS Houston/Galveston Webpage:??
  • National Hurricane Center Webpage:
  • (Click Your Location)
  • West Gulf River Forecast Center Webpage:??

If you have any additional questions, please feel free to contact our office at the phone numbers listed in the?Resources?section above.

Jeff Evans and Amaryllis?Cotto

National Weather Service - Houston/Galveston, TX
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