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Big heat; tracking weak tropical system

ROB'S 10PM WEATHER FORECAST KATC 07-20-26
ROB'S 6PM WEATHER FORECAST KATC 07-20-26
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Posted
and last updated

Acadiana will see it's hottest temperatures so far this summer in the next couple of days, while we continue to monitor a struggling tropical system that will skirt our coast Wednesday into Thursday with what now appears to be with minimal impacts on our area.

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In the near term, a Heat Advisory is in effect for Tuesday for highs in the mid-upper 90s accompanied by heat Index values near 108°-112°, and it could be even hotter Wednesday with heat index values reaching near 115°!

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Of course we continue to watch Tropical Depression #2 which as of Tuesday afternoon still struggling with upper shear and some dry air entrainment.

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The latest NHC Forecast guidance has indicated much the same, and have limited the potential maximum intensity down to a mid-range tropical storm in the 45-50 mph range.

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TD #2 is still expected to become Tropical Storm Bertha by Tuesday impacting Eastern Louisiana with mostly some wind and elevated tides Wednesday.

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While the system moves westward near the Louisiana Coast into Thursday it will be fighting dry, dusty high pressure to the north and increased upper wind shear from the northeast.

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This will result in a weakening, lop-sided storm/depression with most of the big rains and squalls staying on the south side of the circulation and well offshore as it passes by.

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A few scattered showers and storms will be possible inland across Acadiana in the days ahead, but rain chances will be 20-40% range at most through Friday.

Overall, based on today's data and trends, there will be minimal impacts of this system on Acadiana other than a hot northerly breeze developing into Wednesday.

Conditions on the Acadiana Coast will be breezier and there could be an increase in tides by 1-2 feet after the circulation passes west Thursday into Friday, but that may be it.

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It is entirely possible that this system could degenerate to a tropical wave before reaching the Texas Coast Friday/Saturday.

Overall, the 10 Day Forecast looks like a typical summer forecast with very little if any real impacts from the tropical system anticipated...but as always, conditions could change, but the overall trend is heading toward a rather forgettable event...we hope, and we'll see!

Stay with KATC for updates should conditions change.