Weekly Weather Watch: Monday, August 25th, 2025
This week’s weather brings extremes—dangerous heat in the Pacific Northwest and Western Canada, flash flooding in the Southwest and Southern Plains, and an early taste of fall for the Midwest and East.
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HEADLINERS:
Key Weather Impacts:
Mon–Wed: Flash flooding possible in southern Arizona, Colorado, Kansas, Oklahoma, and Arkansas. Monsoonal moisture and slow-moving storms could overwhelm dry washes and urban drainage systems.
Mon–Tue: A dangerous heat wave peaks across the Pacific Northwest, with triple-digit heat and record highs expected in Washington and Oregon. Wildfire risk remains elevated in the Cascades.
Mon–Wed: A strong cold front ushers in unseasonably cool air from the Midwest to the Southeast, with overnight lows in the 40s and 50s and daytime highs struggling to reach the 70s in rain-soaked areas like Kansas and the ArkLaTex.
Wed–Thu: Heavy rainfall shifts to the Central and Southern Plains and into the Mississippi Valley, increasing the risk of flash flooding.
Thu–Fri: Stormy weather continues in the High Plains and Lower Mississippi Valley with isolated heavy rain and continued cool temps.
Tropical Update: Tropical Storm Fernand remains no threat to land, and other systems in the Caribbean show low development chances.
ON THE RADAR:
KEEP AN EYE TO THE SKY:
IN THE GAUGES:
RECORDS MADE TO BE BROKEN:
UN-DROUGHTABLY DRY:
TROPICAL TIDINGS:
The National Hurricane Center is issuing advisories on Tropical Storm Fernand, located over the central subtropical Atlantic.
A tropical wave over the eastern Caribbean Sea is producing disorganized showers and thunderstorms. This system has become less organized since yesterday, and further development is not anticipated as it moves quickly westward during the next few days.
WHERE THERE’S SMOKE, THERE’S …
ARE YOU CIRRUS?!
1814 A tornado hit Washington, DC during the burning of the Capitol and killed invading British soldiers.
The U.S. weather pattern is locked into a classic early fall transition: a nor’easter-like coastal storm is spinning up off the Southeast, set to lash the Mid-Atlantic coast midweek with rain, wind, and rough surf. Meanwhile, persistent heat grips the Mississippi Valley and Northeast, and storm chances reload late week across the Central and Northern Plains. A soggy setup also lingers over California, South Florida, and parts of the Southwest through the weekend.