INCREDIBLE: ISAAC MADE MIGHTY MISSISSIPPI RIVER FLOW BACKWARDS! TROPICAL STORM LESLIE STRENGTHENS - BETHESDA WEATHER DC FORECAST

The U.S. Geological Survey has released an incredible finding.  According to its measurements, Hurricane Isaac at one point reversed the waters of the Mississippi River.  For a time, America's most famous and mightiest river was flowing upstream, rather than rushing towards the Gulf of Mexico like usual.

How could this happen?  It turns out that the Midwestern drought had lowered the river's height, making it less of a match for Isaac's precipitation and storm surge.

BETHESDA FORECAST

Mostly cloudy, 10-15 MPH breeze, 90.  Bring umbrella! 60% chance of thunderstorms.

BETHESDA STORM CENTER

LESLIE UPDATE

Tropical Storm Leslie is taking its time out in the Atlantic.  Despite predictions, Leslie did not become a hurricane Friday.  But the storm is gathering strength, and if you're reading this on the Northern Leeward Islands, this would be a good time to head to the grocery store for Spam, Vienna sausage, bottled water, batteries, etc.

The National Weather Service is now predicting Leslie will get hurricane status today, and based on the latest data, I'll buy that.

TS LESLIE BULLETIN

LOCATION:  550 miles E of Leeward Islands

WINDS:  70 MPH

MOVING:  WNW at 17 MPH

Make sure you're following @BethesdaRow on Twitter, and stay tuned for the Bethesda weather news you want and need to know!