Severe Thunderstorms Possible for the Great Lakes into Ohio Valley; Heavy to Excessive Rainfall Over the Southern Plains

Severe thunderstorms will race along a cold front from the Upper Mississippi Valley into the Great Lakes and Ohio Valley with the main threat being damaging winds. The tail end of this front will possibly produce heavy to excessive rainfall across the southern Plains into the Lower Mississippi Valley through Saturday. Finally, Major-to-record river flooding continues across the Carolinas.
Read More...

Last Update: 915 PM EDT Thu Sep 20 2018

View Nearby Observations

For More Weather Information:

Philadelphia, PA Local Forecast Office

11NM NW Fenwick Island Buoy DE

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH LATE FRIDAY NIGHT...
Synopsis: High pressure across New England and the Canadian Maritimes will build offshore tonight, while nosing its way into the Mid Atlantic region. This high will build offshore Friday, before a cold front moves across the east coast late Friday night into Saturday morning. This front will stall to our south as high pressure builds across eastern Canada. This high will build across New England and the Canadian Maritimes Monday, then offshore into Tuesday. The front to our south is forecast to lift across the area as a warm front Tuesday into Tuesday night, followed by a cold front later Wednesday.

Overnight
SE winds around 10 kt. Seas 3 to 4 ft. Swell mainly from the E with a dominant period of 8 seconds.
Fri
SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt late. Seas 3 to 4 ft. Swell mainly from the E with a dominant period of 9 seconds.
Fri Night
SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Swell mainly from the E with a dominant period of 10 seconds.
Sat
SW winds 10 to 15 kt with gusts up to 20 kt, becoming NE in the afternoon. Seas 3 to 5 ft. Swell mainly from the E with a dominant period of 10 seconds.
Sat Night
NE winds 5 to 10 kt. Seas around 3 ft. A chance of showers after midnight.
Sun
NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. A chance of showers.
Sun Night
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Mon
E winds 15 to 20 kt. Seas 5 to 8 ft. A chance of showers.
Mon Night
E winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers.
Tue
SE winds 15 to 20 kt. Seas 5 to 8 ft. A chance of showers.
Tue Night
S winds 10 to 15 kt. Seas 4 to 7 ft. A chance of showers.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 915 PM EDT Thu Sep 20 2018
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data