Forecast discussion: After another cool night in Boston, we will see temperatures begin to moderate back to seasonable conditions for the rest of the week. A high pressure system off the Jersey shore will slowly shift winds to the southwest, allowing for some warmer air to return. Temperatures will begin to increase, especially during the overnight hours. Low temperatures will increase to the upper 50’s by Friday night.
A weak warm front will pass through New England Saturday, allowing a cold front to move towards the region Saturday night. We will see some scattered showers after midnight, and continue all day Sunday. Right now, I have partly sunny skies for Monday. We may see more clouds remain in the area, as a possible tropical system may continue to give us moisture into Monday evening. At this time, all of the computer models take the low out to sea, and keeps it away from New England. I will continue to monitor the situation, and change the forecast if needed.
In the tropics, Tropical Storm Humberto was centered at 31.8N 43.7W, or about 1035 miles west-southwest of the Azores, as of 5 p.m. EDT. Maximum sustained winds were at 40 mph, and was moving north-northwest at 6 mph. At this time, the thunderstorm formation along its northeastern semicircle has increased. However, being close to an upper level low is hindering the system from further strengthening. The forecast is for Humberto to increase as it moves into a more favorable upper-level wind environment. Within 72 hours, Humberto is forecast to be a extratropical low with storm force winds.
Meanwhile, an area of thunderstorms just west of the Yucatan Peninsula continues to show the possibility of becoming the next tropical system. The National Hurricane Center is calling it Invest 95-L. The system may become a tropical depression once the broad center reaches the Southwest Gulf of Mexico. This system may be pulled towards Florida by early next week, and this is the system that may bring cloudy conditions and possible showers to us by Monday night into Tuesday. If it does become the next named tropical system, the name it will be given will be Jerry.
72 hour forecast:
Tonight: Clear skies and milder with a low of 51.
Thursday: Mostly sunny with a high of 78. Winds will come from the west-southwest at 7-10 mph.
Fenway Park Forecast (7:10 p.m. vs. Baltimore Orioles): Clear, 69.
Thursday night: Partly cloudy with a low of 56. Winds will come from the west-southwest at 3-6 mph.
Friday: Mostly sunny with a high of 77.
Friday night: Partly cloudy with a low of 59.
Saturday: Sunny to start, with increasing clouds starting in the late afternoon. We will see a high of 77.
Saturday night: Showers and light rain developing after midnight with a low of 64.
Sunday: Showers/light rain. Highs 73-76, lows 57-60.
Monday: Partly sunny. Highs 66-69, lows 51-54.
Tuesday: Mostly sunny. Highs 65-68, lows 51-54.
Wednesday: Mostly sunny. Highs 66-69, lows 50-53.