A slow moving storm system containing instances of heavy rain has impacted much of New England today, particularly in Vermont, with several instances of severe flooding.
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The low pressure system and anomalous atmospheric moisture content associated with the ongoing heavy rain event is forecast to slide northeastward tonight and eventually exit the region on Tuesday.
Before then however, additional slow moving showers capable of containing intense rainfall rates are expected to dump a few additional inches of rainfall over parts of northern Vermont and far northeast New York.
As a result, dangerous flooding in these areas are forecast to continue or worsen throughout the night, with impacts turning from flash flooding to main-stem river flooding.
A High Risk (level 4/4) of Excessive Rainfall remains in effect for much of Vermont, highlighting the potential for catastrophic flooding that has not been seen in this part of the country since 2011.
It is imperative to never drive across flooded roadways, as most flood-related deaths occur within vehicles.
Elsewhere, a lingering frontal boundary stretching from the Southeast to the southern Plains and a separate frontal boundary pushing through the northern Plains and Upper Midwest will allow for numerous clusters of strong thunderstorms over the central United States.
Damaging wind gusts and large hail are most likely to accompany thunderstorms across the central Plains, which is where the Storm Prediction Center has issued an Enhanced Risk (level 2/5) of severe weather.
Scattered strong to severe thunderstorms are also possible along the frontal boundary stretching into much of Wisconsin, as well as further south throughout the Texas Panhandle and western Oklahoma.
Flash flooding chances may also accompany storms as they cross into parts of Oklahoma and north-central Texas, where recent rain has left soils mostly saturated.
By Tuesday and Wednesday the greatest severe weather and flash flooding threat shifts to the central Plains and Midwest as developing storms progress along a slow moving frontal boundary.
July heat is expected to continue during the next several days throughout the Southern Tier States as an upper high anchors over West Texas and the Southwest.
Highs in the Southwest and southern High Plains will easily reach into the triple digits, with upper 90s and low 100s expanding into more of the central/southern Plains on Wednesday.
Maximum temperatures into the 110s are likely throughout the Desert Southwest.
Meanwhile, oppressive humidity will lead to dangerous heat indices across parts of Texas, the immediate Gulf Coast, and Florida Peninsula.
Heat Advisories are in effect for parts of Texas and southern Florida to account for heat indices up to 110 degrees.
Residents and visitors are reminded to follow proper heat safety and limit strenuous outdoor activities. ■
A clipper system will move quickly across the northern Plains into the Midwest Friday and the Northeast by Saturday, bringing a wintry mix of rain and snow showers ahead of a sweeping cold front.