Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Graphical HWO - Flash Flooding Threat

This graphic shows the expected coverage of any potential flash flooding within the threatened area.

For example, a yellow shade (corresponding to the "Isolated" category) might reflect the possibility of an isolated thunderstorm that produces enough heavy rain to cause flash flooding within the shaded area. Conversely, a red color (or "Widespread" category) covering several counties would reflect a larger area of heavy rain that could cause flash flooding across multiple areas in those counties.

Click the graphic to return to the graphical HWO page.

Categories

None	No flash flooding is expected.
Isolated	A few instances of flash flooding are possible within the threatened area.
Moderate	Several instances of flash flooding are possible within the threatened area.
Widespread	Numerous instances of flash flooding are possible within the threatened area.

Related Links

Graphical Forecast (includes precipitation amounts)
AHPS (Advanced Hydrologic Prediction Service)

Related Text Products
(Note: These are the latest products issued, so they may be old. Check the date and time. For more information on what these products are, see our Product Guide.)

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Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Flood Threat for Northern Alabama and Southern Middle Tennessee