Thursday's Threats: Heat & Storms

The same upper ridge that has been plaguing the South with dangerous heat and humidity all week is expanding into the Commonwealth today, potentially leading to our 11th 100 degree day this year in Richmond. Heat index values will be as high as 109 degrees in spots this afternoon. This hot and humid air mass in the region will be ripe for thunderstorms later this afternoon and evening as a cold front approaches from the northwest. The risks will be similar to the storms we've had recently in Virginia:

The cool front will finally slide south of our state later Friday, with seasonably hot and dry weather expected over the weekend.

Wednesday Morning Rain Totals

Remnants of Colin Not Likely to Revive Soon

Tropical Storm Colin, which formed Tuesday morning from Tropical Depression Four, lost its short-lived surface center of circulation Tuesday evening, and is now a "remnant low" pressure system. Upper-level winds disrupted the organization of Colin yesterday, and will likely inhibit re-strengthening anytime soon. What remains of Colin is a couple hundred miles east of the Leeward Islands in the western Atlantic (see satellite image above). This low pressure system will likely avoid any landmasses as it remains over the open Atlantic, currently moving to the west-northwest at 25 mph.

Over the next couple days, Colin's remnants will likely be unable to reorganize, which you can see through the 48 hour period.

By the time this system could reorganize and strengthen, it will already be arching back eastward several hundred miles east of the U.S. coast. Colin, or its remnants, will likely not impact the U.S.