Houston records earliest snow, faces a second freezing night

This is quite an early cold spell for Houston. The trace of sleet and snow recorded at Bush Intercontinental Airport on Tuesday broke the record for earliest observed snow at the site, previously set on Nov. 23, 1979. Houston’s Hobby Airport also recorded its earliest trace of freezing precipitation. And although this morning’s freeze for parts of Houston did not set any records, this first freeze has come three to four weeks earlier than normal.

Wednesday

One of the reason it’s very cold this morning is because skies cleared over night, allowing for increased radiational cooling. Those same clear skies will allow temperatures to warm to about 50 degrees today, with light northerly winds, and then once again push lows down to freezing or near-freezing levels tonight. Expect temperatures in the metro area to be similar to to those of Tuesday night.

Wednesday night will be another cold one for the greater Houston region. (National Weather Service)

Thursday

Look for sunny weather, and temperatures should be 5 to 10 degrees warmer, bringing highs into the mid- to upper-50s, and lows comfortably above freezing.

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Most of Houston will see a freeze tonight and Wednesday night

Houston’s temperature dropped below 40 degrees on Tuesday morning for the first time since February 12, and our lows this morning will be quite a bit warmer than the next two mornings. The region’s first freeze since January is on tap for tonight for most of Houston except the coastal areas.

Tuesday

Today will be a cold one, without a doubt. Skies should remain mostly cloudy, and this will likely limit high temperatures in the mid-40s. Brisk, northerly winds at around 15 mph will push wind chill temperatures into the 30s—so you’ll definitely want a jacket at the very least. The radar is showing some very spotty snow flurries and sleet to the west of the region this morning, and this area of moister air aloft will move over the Houston region between about 8am and noon. However, the air nearer the surface of our region is very dry, so while we can’t entirely rule out a few sleet pellets or snow flurries this morning, they’re unlikely.

Tuesday night temperatures will be very cold. (National Weather Service/Space City Weather)

Tonight will be the region’s coldest since mid-January, with most of the area seeing a light-to-moderate freeze .The usual precautions for pets and plants apply, although it probably won’t be cold enough to threaten pipes. The record low for Nov. 14 in Houston is 28 degrees, and I suspect the city’s official station at Bush Intercontinental Airport will come close to that.

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Winter (and we do mean winter) is coming to Houston

Showers associated with a low-pressure system have generally moved east of our region, and now we await the arrival of a strong cold front later this afternoon that will be blustery. This will bring a freeze to parts of Houston, perhaps even most of the city, by Tuesday night. I’ll say it—Winter is Coming.

Monday

Temperatures will climb into the upper 50s today before the arrival of a front this afternoon; probably around 1 or 2 pm for central parts of the city and a little later along the coast. For the most part this should be a dry front, with only scattered rain showers, and these will end regardless later this afternoon. From that point temperatures should begin to fall as winds gust above 25mph in the city, and perhaps above 35mph along the coast bringing in chill northerly air. There is a wind advisory in effect from 2 pm Monday through 6 am Tuesday for the coast. It will be blowing out tonight.

Extent of wind advisory for Monday evening and Tuesday morning. (National Weather Service)

Overnight low temperatures should generally remain in the mid- to upper-30s for the Houston area on Monday night, but with the winds it will feel quite cold outside. Wind chill temperatures for Tuesday morning will feel like the 20s for much of the region.

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Storms possible tonight, cold front arrives to make for a blustery Monday

Just jumping in with a quick update on Sunday to call attention to some potentially severe weather later today. The overall pattern is one in which low pressure over the southern Gulf of Mexico near Brownsville will move up the coast today, and into the Galveston region tonight. This low will combine with Gulf moisture, and upper-level energy, to produce a healthy chance of showers and thunderstorms later today and tonight. NOAA has placed the region under a “marginal” threat of severe weather.

Severe weather outlook for Sunday and Sunday night. (NOAA)

Effectively, this means we’ll see high temperatures in the upper 50s today, with an elevated chance of thunderstorms around sunset and overnight. The precise location of the storms will depend upon how far the low, and associated “warm front” move inland, but the biggest threat is probably damaging winds and an isolated tornado. We don’t anticipate rain accumulations above 0.5 inch or so for most people.

A strong cold front arrives in the area on Monday morning, and these gusty winds will bring drier conditions. Rain chances should diminish during the day, and skies should begin to clear by the afternoon hours or so. It will be a cold day in the 50s with the winds providing a chill, so bundle up accordingly.

We’re still looking at a cold week, with Tuesday night and Wednesday morning the coldest of the bunch. Chances of a freeze for inland area look decent, and we’ll have an estimated freeze line map for you tomorrow.