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Heavy Rain and Tropical Update - July 12, 7:30 AM

Click HERE, HERE, HERE, and HERE for an update concerning the severe weather threat.

Changes from previous update:

  • No major changes

Overview:

WHAT: MARGINAL RISK of Excessive Rainfall Today

SLIGHT RISK of Excessive Rainfall Wednesday through Saturday

WHEN: Most days will have the highest rainfall potential during the daylight hours each day through Saturday.

WHERE: All of SE LA and S MS, with the greatest threat in areas south of the I-10/12 corridor.

CONFIDENCE: We have above-average confidence in the heavy rain threat through at least mid-week with typical uncertainty pertaining to who will get exactly how much rainfall. Increasing concern for flash flooding starting Wednesday along as well as south and east of a line from Pierre Part LA to Poplarville MS.

Threats/Impacts:

For the heavy rainfall potential:

  • Rainfall rates in excess of 2-4 inches per hour are possible

  • High rainfall rates can quickly lead to ponding of water in low-lying and poor drainage areas

  • Flash flooding will be possible in some places, especially urban areas, where high rainfall rates exceed drainage capacity

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