Good morning. Fog lies across much of the area this Houston morning, and the entire metro region is under a Dense Fog Advisory through 10 a.m. Aside from that conditions are just sticky for mid-December. Will they remain that way through Christmas? I’ll discuss.
Today
Conditions will remain mostly cloudy today, and warm, with highs in the mid-70s before the passage of a cold front sometime this afternoon or evening. Some light, scattered rain showers are possible. The front should allow temperatures to fall into the upper 50s tonight for most inland areas, with slightly warmer temperatures along the coast.
Wednesday and Thursday
As light northerly winds bring in drier air, Wednesday should be partly to mostly cloudy, with highs near 70, and overnight lows around 50 degrees. As cooler air continues to move in Thursday may only reach about 60 degrees under mostly sunny skies. The cold front’s effects will be brief, however, as onshore winds resume sometime later on Thursday.
Friday and Saturday
Warm (for December) and muggy weather returns to Houston to end the week, with highs in the mid- to upper-70s on Friday and Saturday, and warm nights. Both of these days should be mostly cloudy, gray, with a chance of light rain and possibly a few thunderstorms. Rain accumulations don’t look impressive, but there should be enough moisture to put a damper on some outdoor plans.
The GFS model (of dewpoint temperatures) shows the forecast position of the front at midnight, as Saturday becomes Sunday. (Weather Bell)
After three days of brutal, winter-like conditions, spring has arrived in Houston for another year. I kid, of course, but it sure is warm out there to start this week.
Today
Lows have only fallen into the mid- to upper-60s across Houston this morning, and some light rain and fog has developed ahead of a weak cool front that’s now moving through the region. This front is likely to stall along, or just off the northern Texas coast. With light northerly winds most areas should see partly to mostly cloudy skies today, with highs of around 70 degrees. Lows tonight will fall down to around 60 degrees.
Tuesday
As the front meanders back inland, Tuesday should see temperatures in the low 70s, along with some scattered, light rain. Fog will be possible in the morning with this moisture before mostly cloudy skies later in the day. The weak front finally gets pulled back east, off the coast, allowing temperatures Tuesday night to fall into the upper 50s for inland areas, and lower 60s along the coast.
Despite some on-again, off-again light rain this week, forecast accumulations through Sunday are slight. (Weather Bell)
This week the Texas Tribune, along with ProPublica, unleashed their second in-depth piece on Houston’s flooding risk. This one, entitled “Boomtown, Flood Town,” takes a closer look at the Tax Day flood event of last April and a broader look at Houston’s flood risk in the context of policy, development, and future climate change. It’s a long, thorough read, and I highly recommend the piece. This supplements their work earlier this year about our hurricane and storm surge risk. I personally think that is one of the more important articles that exists on Houston’s vulnerability to hurricanes.
In the “Boomtown, Flood Town” piece, a number of issues related to April’s flood event and Houston development are addressed. As I said, I encourage you to check it out yourself, but in the meantime, here are some key points that I’m taking away from this
Problems
Houston’s flooding issues are important because more people die in Houston from flooding than in any other city. No other urban area in America has flooded as much as Houston in the last 40 years.
“Boomtown, Flood Town,” from the Texas Tribune and ProPublica.
Wintry weather in Houston doesn’t tend to last too long, and this will be another case where we escape the chill rather quickly. That said, we have an interesting extended range to watch. Some words on that in just a bit.
Today
As I write this, the official temperature at Bush Intercontinental Airport is 38 degrees. Looks like Houston will officially bottom out around 36-37°. The freezing line is well north of the city and should just get to about maybe Conroe. A few rural pockets on either side of Houston could briefly touch freezing before 7:30-8 AM.
Temperatures as of 6:30 AM show the freezing line staying well north of Houston. (NOAA/NWS)
Overall, no big deal in the city, but certainly a light freeze to the north. Now, all that said, it feels unpleasant out there this morning. It’s still breezy, with winds gusting to about 15-20 mph at times. Wind chill values are in the 20s across much of the area. And it will take a few hours this morning before it feels a little nicer.
Wind chills this morning aren’t brutal, but they aren’t pleasant either. (NOAA/NWS)
Temperatures will warm up to the mid and upper 40s this afternoon, with a variable mix of sun and clouds.
Weekend
Overall, this weekend will be neither the best nor worst weekend we’ve ever experienced. Saturday will feature a few changes in the atmosphere: More onshore winds, gradually increasing humidity, and increasing clouds. We’ll start the day chilly again. There is a slight chance that temperatures could again push freezing north of Houston by tomorrow morning. Model guidance is a little more bullish on that risk than I expected this morning. Expect mostly upper 30s to low 40s south of Houston, with low to mid 30s north. A freeze in the city itself is unlikely, but areas outside the Beltway could come closer than this morning if clouds hold off. Saturday afternoon will press into the low to mid 50s with cloud cover. Temperatures probably won’t drop much Saturday night, and in fact, they may continue to rise to near 60 on Sunday morning.
Sunday itself should be a bit dreary. We’ll have clouds and a few showers or sprinkles around. Temperatures continue to edge upward to around 70 degrees by Sunday afternoon. I wouldn’t be shocked to see issues with fog near Galveston by Sunday or Sunday night.
Overall: Your weekend plans are all a-go, but Saturday will be a little nicer (albeit cooler) than Sunday.
Next Week
A weak cold front will slide through Monday, kicking showers away temporarily. But the front will quickly lift back over us as a warm front, continuing the mild weather into Tuesday and Wednesday, along with a low-end shower chance. So we’ll see no wintry weather to start the week, but what about later in the week? Well, it’s complicated. Here’s the forecast of air temperatures about 5,000′ up next Thursday.
Cold tries to push into South Texas next Thursday, but it is going to face some resistance. (Weather Bell)
There’s definitely going to be a cold front mid to late next week in Texas. The question is whether it will have enough “oomph” behind it to really press cold in here. The one thing to notice from the map above is the tight temperature gradient. In other words, the change in temperatures over a small distance is great. You quickly go from near or above normal to sharply below normal. So trying to iron out details seven days out is difficult because small shifts in the forecast can mean big temperature changes. This battle continues into next weekend, with a warmer Texas and a frigid northern U.S. Wintry weather is certainly here, and unlike last year, there’s a good deal of cold air to work with. This first real cold blast we’re experiencing this morning will certainly not be the last for Southeast Texas, so stay tuned.
