Thunderstorm Risks Again Today & Monday, Eastern New England & Atlantic Canada Watching Hurricane Lee

Thunderstorm Risks Again Today & Monday,

Eastern New England & Atlantic Canada Watching Hurricane Lee

Thunderstorm Risks Again Today & Monday,

Eastern New England & Atlantic Canada Watching Hurricane Lee

This Sunday has us still sitting in a very warm and very humid air mass. A frontal bounday lies across Eastern Pennsylvania to Southern New England.  For the 4th day in a row we have the risk for thunderstorms and there might be some isolated severe thunderstorms in the mix. However as of 7am Sunday no formal indication of severe weather risk is being indicated by the Storm Prediction Center. Humidity levels will be high today and highs will reach the upper 70s and lower 80s.

Radars are already showing showers and thunderstorms along the frontal boundary so there could be ther isk of downpours or a thunderstorm at any time. Given that some areas to the west and inland from Western New Jersey to Eastern Pennsylvania north to the Catskills have seen quite a bit of rain the last three days, we have flash flood risk and the Weather Prediction folks have stretched that eastward to the coast today. Thunderstorms today will be heavy rain producers and this will be the greatest risk that these storms could sit over one spot for a long period of time. Bear this in mind if you are travelling today.

SATELLITE WITH LIGHTNING STRIKES

WEATHER RADAR

The frontal boundary remains stalled along the coast into Monday but it will weaken a bit. It will remain warm and humid overnight and Monday we will see some scattered showers and thunderstorms around but they should less than what we have been seeing these past several days. Monday highs will again be in the upper 70s to lower 80s with changeable skies and relatively high humidity.

Another cold front and upper trough approach on Tuesday and this is going to set us up for more numerous showers and thunderstorms late in the Tuesday into Tuesday night. The good news about this weather front is that is very important. It will not only put an end ot the humidity and bring drier air for the second half of next week. It will also shift eastward the tropical boundary and that leads us to discuss Hurricane Lee.

Hurricane Lee has not strengthened overnight into this morning but could begin to strengthen again later today into Monday and Tuesday. It is a category 2 hurricane though it is forecast to return to category 3 status over the next 2 days. Lee will be slowing down and then we watch to see if it gets caught by an upper trough swinging into the Eastern US midweek.

Virtually all models are showing the turn northward midweek and a track to the east. It might come close enough to bring some rain for Eastern New England and down east Maine but the main risks seem to be rising for Atlantic Canada, specifically Nova Scotia.There is still the chance we could see Lee miss this midweek trough and that would put the Northeast US at greater risk next weekend but we thing this possibility is very low and in the coming days, it could be reduced to zero. Assuming that Lee takes the offshore track, Wednesday could see some leftover showers early, and then lower humidity and sunshine with cooler temperatures will move into Eastern Pennyslvania to Southern New England for Thursday into next Saturday.

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MANY THANKS TO TROPICAL TIDBITS FOR THE USE OF MAPS

Please note that with regards to any severe weather,  tropical storms, or hurricanes, should a storm be threatening, please consult your local National Weather Service office or your local government officials about what action you should be taking to protect life and property.