Hazy, hot, and humid with isolated storms again today

finger lakes weather forecast wednesday june 19 2024 hot humid thunderstorms
Another day with hot temperatures and oppressive humidity will lead to the possibility of isolated but strong storms. [Photo by Meteorologist Drew Montreuil, taken in Groton]

Remaining Hot and Stormy

The weather pattern over the eastern United States has not significantly changed from the last couple of days, which means another hot and humid day is ahead.

Temperatures and dewpoints are mainly in the 70s to start this morning, and there are a couple isolated blips on the radar. Most areas are seeing hazy sunshine mixing with some clouds.

The chance for a pop-up thunderstorm will continue throughout the day and small storms could fire at any time. That being said, the most likely time for storms will be through the afternoon, and especially late in the afternoon and early in the evening.

There does not appear to be anything well defined to trigger the storms, so I am expecting the storm coverage to remain isolated and sporadic, similar to yesterday.

Once again, any storms that do pop will have frequent lightning, torrential downpours, and possibly some strong, damaging winds. Localized flooding could result thanks to the slow-moving nature of the storms.

Temperatures will be similar to yesterday with highs in the low and mid 90s. With excessively humid air in place, the heat index will be in the upper 90s and low 100s for many areas.

Nighttime temperatures will once again slowly drop through the 80s and 70s, with most areas staying in the low and mid 70s overnight.

There will be more in the way of a triggering mechanism in the atmosphere overnight and into Thursday. This may increase the chances for thunderstorms. The storm coverage tomorrow afternoon in particular is expected to be broad enough that the Storm Prediction Center has increased our severe thunderstorm threat level to level 2- SLIGHT RISK.

The overall weather pattern will begin to shift somewhat tomorrow as well with the heat dome shrinking. Combined with the increased chances for thunderstorms, most areas will be a few degrees cooler, but no less humid tomorrow. Highs will generally be in the upper 80s and low 90s.

finger lakes weather 7-day forecast wed jun 19 | wed, a few thunderstorms low 90 | thur, scattered showers, storms near 90 | fri, scattered showers, storms mid 80 | sat, a few thunderstorms upper 80 | sun, a few thunderstorms upper 80 | mon, scattered showers, storms upper 70 | tues, sun and a few clouds mid 80
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.

Weekend Weather and Next Week Preview

On Friday, a well-defined weather system should drop south through the region with additional showers and thunderstorms. While rain may be possible throughout the day, the period from the mid-morning through the early afternoon seems to be the focal point.

Winds will finally pick up a bit in the afternoon, coming in from the northwest at 5-10 mph. Humidity will still be high with dewpoints around 70 degrees, but afternoon highs will mainly be in the mid 80s with a few pockets of upper 80s.

Hot and humid weather will continue into the weekend, though most areas will still be just below 90 degrees. Both Saturday and Sunday will have scattered showers and thunderstorms, mainly in the afternoon, but possibly at any time.

Temperatures may drop to the mid 60s Sunday night and highs on Monday will likely stick to the 70s. Additional showers and storms are likely on Monday as a cold front moves through the region.

The next expected dry day is Tuesday with high pressure building in overhead. Temperatures will jump right back up though, with highs in the mid 80s. Morning lows, at least, should be around 60 degrees.

The overall weather pattern as we head towards July will continue to be hot and humid with highs frequently in the 80s and probably some 90 degree days mixed in. Rain chances will primarily come from thunderstorms, which will depend on what sorts of triggers can take advantage of the hot, humid air mass.

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finger lakes weather 7-day forecast wed jun 19 | wed, a few thunderstorms low 90 | thur, scattered showers, storms near 90 | fri, scattered showers, storms mid 80 | sat, a few thunderstorms upper 80 | sun, a few thunderstorms upper 80 | mon, scattered showers, storms upper 70 | tues, sun and a few clouds mid 80
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected.

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Follow Meteorologist Drew Montreuil:
Meteorologist Drew Montreuil has been forecasting the weather in the Finger Lakes region since 2006 and has degrees in meteorology from SUNY Oswego (B.S. with Honors) and Cornell (M.S.). Drew and his wife have four young boys. When not working or playing with the boys, he is probably out for a run through the countryside.