Houston’s weather change this weekend will be short-lived: A summer preview is coming

I filled in for Eric all of last week, which feels like it was 25 years ago at this point. Between the profound changes to our daily lives and the lack of virtually any day to day change in our weather since then, it certainly has felt like a warmer version of “Groundhog Day.” Alas! As Eric has been discussing all week, changes are on the way. They begin today. And they continue next week. Break out the shorts. I explain below.

Today & tonight

Rain is falling this morning basically on a line from Columbus in the west to Conroe in the north. Some areas just west of The Woodlands have picked up close to an inch of rain so far today. We’re also watching a batch of storms between San Antonio and Victoria that will try and work across parts of the area this morning.

Rain and thunderstorms are mostly north and west of Houston this morning, but we’re watching some storms southwest of Houston that could move in later this morning. (College of DuPage)

I think a good rule of thumb for the Houston area this morning: Rain will be most likely north or west of US-59. As we go through the morning and into this afternoon, rain will continue to creep south and east but a lot of the support for heavier rain and storms should sneak off to our east. This means while many of us will see some rain today, it will become less concentrated, more scattered, and less significant as we go into this afternoon, even with the front approaching.

Rain totals should be quite variable. Areas north of Harris County should see 1-3″ total today. For northern Fort Bend and northwest Harris Counties, expect an inch or so, give or take a few tenths. For southern Fort Bend and southeast Harris Counties to the coast, some folks may be lucky to see even a quarter-inch of rain from this.

Total rainfall through midnight will range from 1-2″ or more in far northern reaches of our area to maybe a quarter-inch near the coast. (Weather Bell)

Outside of minor street flooding issues north of the Houston area where the heaviest rain falls, we do not anticipate any real flooding problems today.

Timing-wise: The shift to offshore winds should move through northern and western suburbs soon and before midday. It should pass Downtown Houston around early afternoon and reach the coast by late afternoon. Once the front (or pre-frontal trough) passes, we’ll see temperatures stop rising. So that means there will be a wide disparity in temperatures today. We’ll drop from the 70s into the 60s in far northwest suburbs. For Houston and points south and east, we should get close to 80 or warmer again before the front clears the area and drops us into the 60s and low-70s.

Temperatures will continue to drift downward tonight, dropping into the 50s just about everywhere except coastal counties. Houston proper will bottom out near 60 degrees. Look for a few showers tonight, likely coming to an end.

Saturday

The morning should just be mostly cloudy but dry for most folks. If you’ve been trying to get outside for an hour or two each day, I would strongly recommend the morning, especially north of Houston. Showers could develop in the morning south of Houston. Look for temperatures to only slowly warm from the 50s or low-60s into the mid- to upper-60s.

Things change again Saturday afternoon. Today’s cold front is coming back north tomorrow as a warm front. Look for a burst of showers or thunderstorms as this passes by from south to north. The heaviest rain may initially be in the Houston area, but as the warm front progresses north, watch for that to quickly shift back into northern counties, so places like the Brazos Valley, Conroe, or Cleveland will see heavier rain chances again late Saturday afternoon into Saturday evening. All the heavier rain should lift even north of there overnight Saturday into Sunday morning.

Rain totals should be around a quarter-inch or less in Houston and points south again. We could see a half-inch to inch or a bit more in northern counties again.

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Houston has been dry for awhile—this weekend may help change that

Good morning. The northern hemisphere experiences its earliest vernal equinox in more than a century today—the Sun will cross the equator heading north at 10:49pm CT tonight. Of course Houston has seen spring-like weather for awhile now, and the biggest weather question we have is rainfall. It has generally been a dry start to 2020 for the region, and as a result a moderate drought has emerged for the region. The map below shows “departure from normal” rainfall since around Thanksgiving of last year, and most of Houston is 6 to 8 inches drier than normal during this period.

Departure from normal precipitation over the last 120 days. (UNL)

The good news is that we’re increasingly confident that much of the region, and especially many of the driest areas surrounding Houston, will receive rainfall through this weekend. So let’s get into the forecast.

Thursday

Today will be like much of what we’ve experienced this week—warm with a mix of clouds and sunshine as high temperatures nudge up into the low 80s. Winds will be gusty out of the south again today, likely pushing up to around 20 mph. Some light rain will be possible during the overnight hours, as lows only fall to around 70 degrees.

Friday

Friday morning will begin like much of the rest of this week, quite warm and humid. But around sunrise, showers should form ahead of a cold front north and west of Houston, and push into the city during the pre-noon hours. Rainfall accumulations for most areas north of Interstate 10 should be around 1 inch, with less toward the coast. Some heavy rain is possible, so a few inland areas could see in excess of 2 inches, but the storms should die out during the evening hours as the front pushes through the region. Lows Friday night should drop into the upper 50s for most except the coast.

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Warm and dry before a wet weekend soaks Houston

Oh, hey, look at this—another warm and humid morning in the middle of March. Temperatures across much of the region on Wednesday morning have not fallen below 70 degrees. We’ll have a couple more days in this pattern before a front arrives to bring some cooler weather along with some much needed rainfall. This rain, along with some wind gusts of 30 mph or higher on Friday, should help with the region’s still extremely high tree pollen.

Wednesday

Highs will go back up to about 80 degrees today, although afternoon temperatures will depend upon the extent of sunshine. Like on Tuesday, when we saw some welcome breaks in the clouds, we may see some sun amidst the gray skies today. One noticeable difference will be winds, which may gust up to 25 mph this afternoon. There will be a slight chance of overnight showers as temperatures fall to around 70 degrees.

Winds may be a bit gusty on Wednesday. (Pivotal Weather)

Thursday

In all honesty, Thursday’s forecast is pretty much a carbon copy of Wednesday. A capping inversion should again act to limit any showers and thunderstorms as highs again reach about 80 degrees for the region.

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Warmth continues until a cool front arrives on Friday

Situation update: Today, all clubs and bars in Houston and Harris County will close for at least 15 days. Restaurants will provide take-out service only. Residents are advised to remain home unless they are grocery shopping, visiting a physician, or on other essential business. These are very difficult measures both socially and economically, but as we explained Sunday, at this point they are essential to help manage the spread of COVID-19. Now, on to the weather.

High temperatures on Tuesday will be plenty warm for mid-March. (Pivotal Weather)

Tuesday

St. Patrick’s Day in Houston will be warm, humid, and cloudy. We have been in this same pattern, more or less, for more than a week and it’s not going to change until Friday. There is some patchy fog this morning that will burn off later today, with some light southeast winds at the surface, blowing at about 10 mph. Highs will reach around 80 degrees, with lows Tuesday night falling only to around 70 degrees. A capping inversion should keep a lid on any rain chances. Expect pressures to increase for firing the head coach-general manager of the Houston Texans after trading an amazing wide receiver for a second-round pick, a bad contract, and six rolls of toilet paper.

Wednesday

Did you read Tuesday’s forecast? Good, because it’s pretty much the same, although winds from the southeast may be a tad gusty. (And yeah, we’re still going to want Bill O’Brien fired on Wednesday, too).

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