Temperatures in the upper 90s have combined with high humidity to boost the heat index to an intolerable 100 degrees, even 105 degrees in some areas. And a cold front approaching from the west will also increase the likelihood of severe thunderstorms across the lower Hudson Valley. Sullivan County is under a severe thunderstorm warning until 6:45 p.m., and Pike County is under a severe thunderstorm watch until 11 p.m. Sunday.

A Severe Thunderstorm Warning remains in effect until 6:45 pm EDT for Southern Sullivan County. At 6:11 pm EDT, a severe thunderstorm was located over Monticello. Moving northeast at 30 mph.

Hazard, 60 mph wind gusts and quarter size hail.

Source, radar indicated.

Impact: hail damage to vehicles is expected. Expect wind damage to roofs, siding and trees.

This Severe Storm will be near. Kiamesha and Hurleyville around 6:15 pm EDT.

South Fallsburg, Thompsonville and Rock Hill around 6:20 pm EDT. Fallsburg, Wurtsboro and Woodridge around 6:25 pm EDT.

Phillipsport around 6:30 pm EDT.

Hail, 1.00IN Wind, 60mph.

(YWN Sullivan County Newsroom)