Very Heavy Rain, Severe Thunderstorms, and High Flash Flood Risk moves into the Mississippi Valley and Midwest

Thunderstorms, some severe, with very heavy rain have moved into the Mid South and Tennessee Valley today. Flash flooding and severe thunderstorms will be possible from the central Gulf Coast to the Upper Great Lakes. The greatest threat of excessive rains will be in portions of the Lower and Middle Mississippi Valleys. This storm system has a history of producing life threatening flash floods.
Read More...

Last Update: 633 PM EDT SUN APR 30 2017

View Nearby Observations

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM SSW Atlantic City NJ

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH TUESDAY EVENING...
Synopsis: HIGH PRESSURE OFFSHORE WILL CAUSE A WARM FRONT TO LIFT ACROSS THE AREA TONIGHT AND MONDAY MORNING. LOW PRESSURE WILL MOVE FROM THE UPPER GREAT LAKES REGION MONDAY THROUGH SOUTHERN CANADA TUESDAY. IT WILL PULL A COLD FRONT ACROSS OUR AREA MONDAY NIGHT. AN AREA OF HIGH PRESSURE WILL MOVE OVER THE AREA DURING THE MIDDLE OF THE WEEK. MORE LOW PRESSURE WILL BRING UNSETTLED CONDITIONS FOR THURSDAY AND FRIDAY.

Tonight
SE winds 10 to 15 kt...becoming S after midnight. Seas 3 to 4 ft. Mainly in SE swell with a dominant period of 6 seconds. patchy fog late this evening and overnight. Vsby 1 to 3 nm late this evening and early morning...decreasing to 1 nm or less.
Mon
S winds 15 to 20 kt. Gusts up to 25 kt... Increasing to 30 kt late. Seas 4 to 6 ft. Mainly in S swell with a dominant period of 6 seconds. patchy fog early in the morning with vsby 1 nm or less.
Mon Night
S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Mainly in SE swell with a dominant period of 8 seconds. showers likely with a chance of tstms until early morning...then a chance of showers late.
Tue
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft...subsiding to 4 to 6 ft early in the afternoon. Mainly in S swell with a dominant period of 9 seconds.
Tue Night
W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft.
Wed
W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Wed Night
NW winds 10 to 15 kt with gusts up to 20 kt... Becoming N 5 to 10 kt after midnight. Seas 2 to 4 ft.
Thu
E winds 5 to 10 kt...increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. A chance of showers.
Thu Night
SE winds 15 to 20 kt. Seas 3 to 5 ft...building to 4 to 7 ft after midnight. Showers likely.
Fri
S winds around 15 kt. Seas 4 to 7 ft. Showers.
Fri Night
S winds 10 to 15 kt. Seas 4 to 6 ft. Showers... Mainly in the evening. winds and seas higher in and near tstms.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 633 PM EDT SUN APR 30 2017
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data