NWS Weather Prediction Center
@NWSWPC
Official X account for the National Weather Service Weather Prediction Center. Details:
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There will be potential for scattered flash flooding across the I-95 corridor from D.C. to Boston as rounds of storms are possible ahead of a cold front moving into the region. Urban areas with high runoff will be the most susceptible to flash flooding.
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Preliminary maximum rainfall amounts exceeding 20-25" have occurred during the last four days across parts of south-central TX, leading to catastrophic flooding in the area. Raining continues across south-central TX.
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A HIGH risk is in effect in our Day 1 Excessive Rainfall Outlook. More details:
Preliminary maximum rainfall amounts over 20-25" have occurred during the last three days across parts of south-central TX, leading to catastrophic flooding in the area. Heavy rain is ongoing.
WPC will be updating storm summaries every 12 hours here:
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A Moderate Risk for Excessive Rainfall is out for south-central Arizona on Thursday, July 16. Numerous cases of flash floods are forecast with significant flooding possible. Be sure to have multiple ways of receiving weather warnings in advance of tomorrow's Moderate Risk.
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The latest afternoon key messages for Texas and Lower Mississippi Heavy Rainfall.
A Moderate Risk of Excessive Rainfall is in effect for Saturday across eastern Kansas to central Missouri. A couple of rounds of storms capable of producing torrential rainfall are likely ahead of a system moving into the area. Saturated soils will also enhance the flood risk.
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If going out this weekend to celebrate festivities, an ongoing heat wave will bring widespread Major HeatRisk from Texas all the way to the Mid-Atlantic as high temperatures soar into the middle and upper 90s. Stay hydrated and take cooling breaks.
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Rounds of storms are likely to continue this evening and tomorrow afternoon across the Midwest along and ahead of a slow moving front. 2-3 inches of rainfall is most likely with localized 4+ across the borders of Missouri, Iowa, and Illinois.
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🥵Our latest Key Messages on mid-June heatwave forecast to move from the central U.S. into Eastern & Southern U.S. late week. Remember to stay hydrated and take frequent breaks from the sun.
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