100s Return to Dallas and Houston Late Week, Trough Returns To East & Stays There!

Written by on July 22, 2013 in United States of America with 0 Comments

There has been a lot of rain in recent times across Texas and as a result rather cool for this time of year. However as the ridge builds over the Four Corners it will slide east and so conditions settle down from Houston up to Oklahoma City after recent shower and thunderstorm activity. Low pressure positioned along the TX-LA border drifts away as high pressure builds in.

Here’s the ECMWF chart for late week. I expect that as temps rise, so the ground dries and this will allow reading to return to triple digits from Wichita Falls down to Houston.

Wednesday

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_72

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Friday

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_120

Keep in mind that allow the ridge would be typically strong enough to support 100s, it may take till Thursday or even Friday before it reaches 100 again as the moisture initially gets drawn from the soil and thus a lot of the sun’s energy will go into evaporation but once this moisture is dried out, so temps lift from upper 90s Wed to 100 Thu.

Notice the trough returns to the East. ECMWF, GFS and CFSv2 all agree on a persistent trough and no real heat comes back in the near term. The worst of the heat is likely past for the DC to Boston corridor.

As for the Southeast, it remains cool and damp and plenty more rain is on the way from the Central Plains across to Florida and up to New England over the next 7 days. Notice it dries out in Texas again. While much of the nation outwith the West cools considerably as we enter August, the heat will likely linger over Texas well into fall this year.

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Check out how cool the CFSv2 has August across much of the nation except for the far West.

CFSv2_NaT2mProb_20130721_201308

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