Matt Lanza

Houston’s warm winter interlude lasts a little longer

The fog lifted and temperatures exploded yesterday afternoon. Houston managed to hit 79° officially, just a little shy of the record of 81° set back in 2012. This is our fifth day above 75° so far this month. We did eight of them last December, but most came in the final 10 days of the month. We should add at least one or two more warm days to the record this week before a pretty significant dose of winter cold brings us back to reality.

Today

Spectacular. We try not to editorialize the weather too much, but it’s tough to argue against today’s weather by almost any objective metric. I expect today to be a chamber of commerce special, with ample sunshine and just a few high clouds. Temperatures again should reach for the upper-70s. Dewpoints today will be 15 to 20 degrees lower than yesterday meaning drier air is in place. If we hit 79° again this afternoon, it will feel a whole lot nicer than the 79° we hit yesterday.

Thursday through Saturday morning

Our foray into near-ideal weather will end abruptly on Thursday. We could start the day with areas of fog back in the picture. If we don’t, they’ll return with force Thursday night I think. Humidity should skyrocket on Thursday as onshore flow returns. It might be cool and damp Thursday morning, but it will finish downright humid. There could be some showers around on Thursday, but I don’t really foresee anything too substantial and rainfall accumulations should be minor.

Temperatures will start Thursday in the mid-50s and warm into the mid or upper-70s on Thursday afternoon. We may not see temperatures drop very far on Thursday night. The best we’ll do is probably around 65-70° in much of the area, with some places perhaps not dropping below 70° Friday morning. Fog and some isolated showers will play games with temperatures on Friday, leading to perhaps mid-70s. With enough sunshine 80° can’t be ruled out however.

Our next cold front will approach Friday night — or Saturday morning. The timing has slowed down by at least six hours since yesterday and it now appears we won’t see much rain til after midnight Friday night into Saturday morning.

The official rainfall forecast between Thursday & Friday’s showers and Friday & Saturday’s front looks mostly minor. Expect about a quarter to half inch on average, with a few places seeing a little less or a little more. (NWS/Weather Bell)

We could have some thunderstorms with the front as it passes also, but as of now severe weather is unlikely. Behind the front, somewhat cooler temperatures will pour into the region.

(Space City Weather is brought to you this month by the Law Office of Murray Newman)

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Houston’s weather roller coaster takes us for a ride

A dreary start to the week will continue today with a number of things to watch for in the region. Let’s get to it.

Today & tonight

Two issues this morning: Fog and rain. Starting with visibility, we’ve got Dense Fog Advisories up for the entire region. Visibility is restricted just about everywhere in Southeast Texas, so give yourself a few extra minutes this morning. Fog will be most persistent near the coast, so if you’re traveling south on I-45 or east on I-10 this morning, you should expect a much slower than usual go of things.

The I-45 Causeway into or out of Galveston is a very foggy drive this morning. (Houston TranStar)

In addition to the fog, we’re also watching rain. Most of the heavier and steadier rain is well north of Houston this morning. If you live in The Woodlands or Conroe or north and west of Houston toward Sealy or Hempstead, you’re seeing occasional rains this morning. Those will probably lift off to the north through the morning.

Radar as of 6:35 this morning shows the steadiest rains well north and west of Houston. Those will shift further north through the day. (GRLevel3)

The rest of today will feature steady to perhaps heavy rainfall almost totally out of the Houston area. This would be most likely north of a Brenham-Huntsville-Lufkin line. In and around Houston itself, we could see a sporadic shower or a thunderstorm. After the fog slowly dissipates this morning (and in places, it may linger into early afternoon), it should be mostly dry. Expect temperatures to reach the mid-70s this afternoon.

Tonight is when we’ll need to pay attention for some quick moving thunderstorms. A cold front should sweep through between roughly 9 PM and 2 AM. It will bring a broken, thin line of storms, which means it’s possible that not everyone sees rain or thunder. That said, parameters over Southeast Texas will be favorable for some of the storms embedded in that line to be strong to severe. A few places may see some gusty winds, and while we can’t entirely rule out a stray storm capable of producing a tornado, that would be most likely well northeast of Houston into the Piney Woods I think.

Behind the front, westerly winds take control, and much drier and slightly cooler air will arrive overnight.

Wednesday

This is the pick of the week. Perhaps it’s the pick of the next few weeks, actually. I mean, it looks stunning. Wednesday should be partly to mostly sunny, not too humid, and quite warm. Expect temperatures to max out in the middle or upper-70s. This is less of a Christmas spirit type day and more of a “this is why we live in Houston” type day. Hope you’re able to enjoy it a bit.

(Space City Weather is brought to you this month by the Law Office of Murray Newman)

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Post-Harvey week in review: December 18, 2017

It’s another Monday, so it’s time for another week in review of articles about Harvey-related issues in Texas. If you missed previous recaps, they are here:

Post-Harvey week in review: December 11, 2017
Post-Harvey week in review: December 4, 2017
Post-Harvey week in review: November 27, 2017
Post-Harvey week in review: November 20, 2017

Just as a note: With Christmas and New Years upcoming on Mondays, we’ll table this feature until next year. Look for this to resume in early 2018.

Reads of the week

The Houston Chronicle’s “Developing Storm” series. Parts one and two are linked in last week’s post. The next three parts are linked below. There should be two more coming soon. These are very much worth your time to read, as they’re educational, informative, and, at times, maddening.

Part 3: What’s in Houston’s worst flood zones? Development worth $13.5 billion (Houston Chronicle): Since 2008, 1,400 structures worth $4.2 billion have been built on floodway parcels in Harris County. Part 3 of the Chronicle’s seven part series examines the differences between floodways and floodplains and how Houston’s regulations have evolved (or haven’t) despite our experience with frequent floods over the years.

Part 4: Harvey overwhelmed some levee systems. Future storms could do worse (Houston Chronicle): Levee systems protecting subdivisions in Fort Bend County probably performed as they were supposed to, but that didn’t prevent over 100 homes from being flooded during Harvey. And by no means do levees guarantee future protection from flooding.

Part 5: Officials patched and prayed while pressure built on Houston’s dams (Houston Chronicle): Addicks and Barker Dams have done enormous service to Houston. Learn about their history and learn how much trouble Houston would be in if they were to fail.

Flooding fact sheets

Continuing on the idea of educating and informing Houston residents: The Greater Houston Flood Mitigation Consortium has published fact sheets to help people in the Houston area better understand terms, technicalities, and flooding risks. Four of them are linked below.

Flood warning systems 
What is a floodplain? 
How to assess flood damage 
What are detention basins?

(Space City Weather is brought to you this month by the Law Office of Murray Newman)

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More frequent rain chances for Houston

After an autumn that has seen Texas slip into drought and cooler weather than we’ve had the last couple years, we’re now adding a more active pattern with a few more rain chances to boot. A lot to cover, so let’s dive in.

Today

Today is a day where we need two or three forecasts for the area. You can see that on this satellite image from this morning.

GOES-16 satellite imagery is back online and officially operational. The back edge of clouds will try and push southeast today but it may not make it to Houston. (Univ of Wisconsin SSEC)

At the coast: Expect clouds and a chance of showers or periods of light rain. The steadier rain will stay offshore, but if you live within 20 miles of the Gulf, you will probably see some raindrops at times today, especially in the morning. Inland from there, including most of the Houston metro area, we’ll just be cloudy. Some light rain or drizzle is possible southeast of town in the morning, and some sunshine is possible in Houston and northwest during the afternoon. Further northwest of Houston, expect a mix of sun and clouds to develop. Temperatures will range from the mid-50s south and east to the mid or upper-50s with clouds and sun north and west.

Saturday and Sunday

Saturday will see a change, as a brief surge of onshore flow leads to increasing rain chances as the day goes on. If you have outdoor plans, the morning might be your safest bet. Expect scattered showers or thunderstorms to break out from west to east Saturday afternoon and evening as a cold front approaches. Rain may be briefly heavy at times, along with some strong or even severe thunderstorms (mainly south and east of Houston) overnight Saturday. Right now, any severe weather looks pretty isolated and mainly east of the area. If this changes, Eric or myself will update you tomorrow.

Rain should quickly end from west to east across the area probably between about 12 and 3 AM Sunday.  The exception to this may be along the coast, where a few showers will linger through Sunday morning. Total rainfall for this event will probably be a half inch to an inch on average, with a few spots perhaps picking up one to two inches of rain.

NWS forecast of total rainfall through Sunday evening shows around an inch in most of the area. A few places will see more, others less. (NWS/Weather Bell)

 

Temperatures will top off in the upper 50s Saturday afternoon, then drop off behind the front Saturday night into the lower-50s. Sunday should see improving conditions with a bit of sunshine and highs in the mid to upper-60s.

(Space City Weather is brought to you this month by the Law Office of Murray Newman)

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