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.
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Hazardous Weather Conditions
Last Update: 418 PM EDT Thu Sep 20 2018
For More Weather Information:
11NM W Marco Island FL
Marine Zone Forecast
Synopsis: AMZ600-GMZ606-211200-
Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for East
Cape Sable to Bonita Beach FL out to 60 nm-
418 PM EDT Thu Sep 20 2018
SYNOPSIS...Easterly winds will continue over South Florida waters
this weekend leading to the typical nighttime and morning shower
and thunderstorm activity, except afternoon and evening activity
Lake Okeechobee waters and near-shore Gulf waters. A small
northeast swell of 2 feet will also be working into the Atlantic
waters of Palm Beach County this weekend from the north that is
associated with the low north of Bermuda.
.GULF STREAM HAZARDS...NONE
The approximate location of the west wall of the Gulf Stream as of
Sep 20, 2018 at 1200 UTC...
9 nautical miles northeast of Fowey Rocks.
19 nautical miles east southeast of Port Everglades.
9 nautical miles east southeast of Lake Worth.
12 nautical miles east southeast of Jupiter Inlet.
This data courtesy of the Naval Oceanographic Office.
$$
Tonight
East winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. A chance of showers and thunderstorms in the evening.
Friday
East winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Friday Night
East winds around 5 knots nearshore and east 5 to 10 knots offshore. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. A chance of showers and thunderstorms in the evening.
Saturday
East winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Saturday Night
East winds 5 knots nearshore and east southeast around 10 knots offshore. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms in the evening...then a slight chance of showers and thunderstorms after midnight.
Sunday
Southeast winds 5 knots nearshore and east southeast 5 to 10 knots offshore. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Sunday Night
East winds around 5 knots nearshore and east 5 to 10 knots offshore. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers in the evening. A slight chance of thunderstorms through the night. A slight chance of showers after midnight.
Monday
Southeast winds around 5 knots nearshore and southeast 5 to 10 knots offshore. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Monday Night
East southeast winds 5 knots nearshore and southeast 5 to 10 knots offshore. Seas less than 2 feet. Bay and inland waters a light chop. A slight chance of showers and thunderstorms.
Tuesday
South southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Additional Forecasts and Information
ABOUT THIS FORECAST
| Last Update: | 418 PM EDT Thu Sep 20 2018 |
| Forecast Discussion | |
RADAR & SATELLITE IMAGES
