Excessive Heat Continues today for Portions of Central and Eastern U.S.; Change in Weather Pattern this Week
Dangerous heat and humidity continues today from portions of the Plains to the East Coast. A cold front will bring lower temperatures, and potential for strong to severe thunderstorms with damaging winds and heavy rain that could produce flash flooding to the Central and Eastern U.S. through early this week. High pressure shifts West this week with building heat and monsoonal moisture.
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Hazardous Weather Conditions
Last Update: 716 PM EDT Sun Jul 21 2019
For More Weather Information:
6NM WNW Portsmouth RI
Marine Zone Forecast
Synopsis: ANZ200-221200-
716 PM EDT Sun Jul 21 2019
.Synopsis for Massachusetts and Rhode Island coastal waters...
A weak cold front will move south across the waters tonight, then
stall near the south coast where a few showers or tstms may form.
Areas of low pres will move along this stalled boundary Mon and Tue
bringing showers and tstms, some with tropical downpours. Dry and
more seasonable conditions return Wed thru Fri as high pres builds
across the waters.
For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.
$$
Tonight
NW winds 5 to 10 kt. Waves 2 to 3 ft. A slight chance of showers and tstms this evening.
Mon
N winds around 5 kt, becoming SE in the afternoon. Waves around 2 ft. A chance of showers.
Mon Night
NE winds 5 to 10 kt, becoming NW after midnight. Waves 2 to 3 ft. Patchy fog. Showers with a chance of tstms. Vsby 1 to 3 nm.
Tue
N winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. Showers with a chance of tstms. Vsby 1 to 3 nm.
Tue Night
NW winds around 5 kt. Waves 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm.
Wed
N winds around 5 kt, becoming SW in the afternoon. Waves 2 to 3 ft.
Wed Night
SW winds around 5 kt, becoming W after midnight. Waves 2 to 3 ft.
Thu
W winds around 5 kt. Waves around 2 ft.
Thu Night
SW winds around 5 kt. Waves around 2 ft.
Fri
SW winds 5 to 10 kt. Waves around 2 ft.
Fri Night
SW winds around 5 kt. Waves around 2 ft. winds and waves higher in and near tstms. seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
Additional Forecasts and Information
ABOUT THIS FORECAST
| Last Update: | 716 PM EDT Sun Jul 21 2019 |
| Forecast Discussion | |
RADAR & SATELLITE IMAGES
