Looking back at winter’s warmth, and cooler weather ahead

The winds finally died down shortly before midnight on Sunday. Peak gusts for inland areas—to the north and west of US 59—were generally 40 to 45 mph, while peak gusts closer to the coast generally ranged from 45 to 50 mph. But now, as our weather settles down into a more winter-like pattern, here’s a look back at the warmth this month, and ahead at cooler weather.

Warmth

The first eight days of January were quite cold, with an Arctic blast that drove overnight temperatures into the low- to mid-20s for three nights. But since then the region has been anomalously warm. Accordingly, the average temperature for the month through three weeks has been 60.9 degrees, which ranks 7th on the list of all-time warmest Januaries for Houston—so far. I think we may finish just outside the top 10 given a cooler last week of the month.

(National Weather Service)

 

Another measure of warmth is the number of 80-degree days, a marker for truly abnormal, daily heat during winter. Houston has recorded nine 80-degree days so far in December and January. According to the National Weather Service the record for total number of 80-degree days in “winter,” defined here as December through February, is 17, which has happened three times (1995-96, 1956-57, & 1910-11). It’s certainly not out of the question that we pick up seven or eight 80-degree days in February, so we’ll see. But for the rest of January I see the opportunity to add one more.

(Space City Weather is sponsored by Westbury Christian School for this month)

See full post

Strong winds on Sunday, gusts likely well above 30 mph

If you’re planning outdoor activities on Sunday please take the potential for strong wind gusts into account. As pressures fall on Saturday night and Sunday morning, and a front moves through the Houston area, the region will likely see sustained winds from 20 to 30 mph for most of the day.

Sustained wind forecast for noon on Sunday. (windy.tv)

 

Gusts in Houston may reach into the low 40s, and 45 mph or higher right along the coast. This will drive temperatures and humidity levels down, and most of next week will finally feel more like winter than fall.

Also, after a series of major rain events have raked Houston during the last week, the region will also enter into a much drier period, with low rain chances for at least the next week or 10 days. For those fretting about the “end” of winter, it also seems likely that we’ll see some significantly colder weather by the end of this month, but the details still aren’t entirely clear. In any case, winter isn’t over yet.

Posted at 10:30am CT on Saturday by Eric

(Space City Weather is sponsored by Westbury Christian School for this month)

Scattered, strong thunderstorms possible in Houston for rush hour

As expected some thunderstorms have develop near, and south of Victoria this afternoon along a warm front stretching across coastal Texas. As these storms migrate to the northeast toward the Houston metro area, it appears likely that a weak disturbance in the upper atmosphere will add an additional impetus to strengthen them this evening over Houston.

Thunderstorms are likely in Houston this evening. (Texas Tech)

 

Practically, this means the region will see a pretty healthy chance of showers sometime between 4 and 8pm this evening, and a decent chance of thunderstorms. Tornadoes appear unlikely to form with this system, but some hail is possible due to vertical wind shear. Most areas will likely see 1 inch of rain or less, but a few areas might see more rain where the heaviest storms set up. Any lingering showers should exit the area by about 9pm.

Saturday should be mostly sunny, with a high in the upper 70s, and a slight chance of rain toward the evening hours. Sunday still looks sunny, but quite blustery as a front moves in. Look for gusts in the 30s, which could play havoc with outdoor activities.

Posted at 2:40pm CT on Friday by Eric

(Space City Weather is sponsored by Westbury Christian School for this month)

A few showers before a breezy Sunday

After a chaotic week of weather, Houston will face gradually face somewhat more benign conditions as we head through the weekend. First, we have to get through the potential for showers & storms today and possibly Saturday. That will be followed by quite a breezy day on Sunday.

Today & Saturday

Fog this morning is pretty dense over most of the region, and dense fog advisories are posted basically along and south of Highway 105. Use a lot of caution out there this morning.

The fog will lift later this morning, so we should see a little sunshine. Clouds sneak back in this afternoon. The big question then becomes where showers or storms develop. I want to show you two pieces of data that we’re looking at. This is a forecast radar for 6 PM this evening. The HRRR model is on the left, and a model run by Texas Tech is on the right. Click to enlarge.

Weather models are out of sync this evening, leading to a somewhat lower confidence forecast. (Weather Bell/Texas Tech)

 

The HRRR (left) indicates the warm front in the Gulf may get all the way to I-10, helping to fire up thunderstorms this evening. The WRF (right) has the front falling just short and keeps most storms near the coast or over the Gulf. Given the uncertainty, the SPC has the eastern part of the region in a “marginal” risk for severe thunderstorms.

Best severe weather risk should stay east of the area today, but it will be a somewhat close call. (NWS SPC)

 

My feeling is that the HRRR may be overdoing things a bit, but it’s a close call. I am apt to prefer this SPC map and say the best chance for storms remains south and east of Houston later today. We will update you if that changes, but definitely have an umbrella handy today to be safe.

On Saturday, it actually looks fairly quiet. With a strong system developing to our northwest, we could see a few showers or storms, but any legitimate severe weather risk looks to stay well east of the Houston area, in Louisiana. Temps will peak in the mid 70s both days, with lows in the low 60s tonight.

(Space City Weather is sponsored by Westbury Christian School for this month)

See full post