Forecast discussion: High pressure gave Providence a beautiful Monday, and made it feel like an autumn day. However, we will get one last feel of summer starting on Tuesday, before feeling some hot weather on Wednesday. But, we will return to autumn weather by the weekend.
Over the next 12 to 24 hours, a warm front in the western Great Lakes will come through New England by Tuesday night. Our temperatures will increase to the upper 70’s to near 80 on Tuesday, and our dewpoint temperatures will rise as well. With the increased moisture, the atmosphere will become quite saturated, and the air will feel muggy. This will make it tough to sleep Tuesday night without air conditioning. Also, a few showers are possible early Wednesday morning.
By Wednesday morning, we will see more clouds than sunshine, and temperatures will reach 90 degrees in the capital city. In fact, it is possible that heat advisories may be issued by the National Weather Service. We will see heavier precipitation Wednesday night through Thursday, as the cold front associated with the low pressure system moves through the area. Some thunderstorms could produce some severe weather, like strong winds, small hail, and frequent lightning. The front will move offshore by early Friday morning, and we will see increased sunshine by the afternoon.
The weekend will feel very much like autumn, as highs reach the middle to lower 70’s, which lows in the upper 40’s to lower 50’s.
Meanwhile, Tropical Storm Humberto was centered at 13.7N 25.3W as of 5 p.m. EDT, or about 95 miles southwest of the southernmost Cape Verde Islands. Maximum sustained winds are at 50 mph, and is moving west-northwest at 13 mph. The system is forecast to become a hurricane within the next 12 hours, before reaching its maximum strength of 90 mph within 48 hours. However, the forecast track has the system moving north-northwest to almost north within the next 5 days. It poses no threat to the U.S. mainland at this time.
Also, the remnants of Gabrielle could re-form and become a tropical depression within the next 24 to 48 hours. The computer models are suggesting a circulation will move northward, and stay away from the east coast.
72 hour forecast:
Tonight: Partly cloudy with a low of 56.
Tuesday: Partly sunny, breezy and warmer with a high of 80. Winds will come from the south-southwest at 12-15 mph.
Tuesday night: Mostly cloudy and muggy with possible showers after midnight and a low of 70. Patchy fog may develop along the coast. Winds will come from the southwest at 7-10 mph.
Wednesday: Partly sunny, hot, and humid with a high of 90.
Wednesday night: Showers, isolated periods of rain, and a possible thunderstorm with a low of 71.
Thursday: Showers and thunderstorms with a high of 83.
Thursday night: Showers and isolated periods of rain with a low of 63.
Friday: Showers/rain ending by the morning. Partly to mostly sunny skies expected through the afternoon. Highs 70-73, 50-53.
Saturday: Mostly sunny. Highs 65-68, lows 46-49.