As temperatures challenge the 90-degree Fahrenheit mark at midweek, showers and locally severe thunderstorms will crash through the Harrisburg, Pennsylvania, area.
Hot it gets Wednesday will depend on the amount of sunshine versus clouds and storms that come cascading in from the Great Lakes.
Highs will be in the 90s Wednesday. However, the high humidity accompanying the heat will push AccuWeather RealFeel® temperatures to near 100 in the afternoon.
There is the potential for some communities to be hit hard with strong wind gusts, torrential downpours and frequent lightning strikes during the afternoon and evening.
Temperatures hit 90 for the first time this year on Tuesday. On average the first 90-degree temperature occurs during late May.
Cooler and less humid air will push southward from Eastern Canada late this week.
Current indications are there will be enough southward push to drive away showers and thunderstorms for a brief time. However, as this push backs off over the weekend, showers and storms are likely to return.
Limit your outdoor activities and seek shade or air conditioning when possible during the peak of the heat. Keep hydrated by drinking plenty of water.
Travel restrictions are already in place in advance of the blizzard set to wallop the northeastern United States.
An all-out blizzard will slam the New York City area and New England Monday night through Tuesday, bringing many communities to a standstill.
Lingering midwinter cold and additional rounds of snow will add to difficulties for cleanup and those without power after the Blizzard of 2015.
For Atlantic Canada, yet another winter storm will bring widespread travel disruptions on Tuesday.
While snow will wind down by Tuesday, cold air will hang on through midweek before the return of snow comes on Thursday.
After a brief warm spell that kicked off the workweek for Seattle, temperatures will tumble back to seasonable highs for the rest of the week.
Chicago, IL (1967)
Record 23 inches for a single storm (Jan. 26th-27th), including a record 19.8 inches in 24 hours. Some parts of So. Cook County received 27 inches. Wind gusts of over 60 mph combined with temperatures in the upper 20s; drifts of 4-8 feet common with some reaching a height of 12 feet.
Michigan, Indiana Ohio (1978)
Paralyzing Midwest blizzard: 100 killed, wind gusts to 100 mph, 25-foot drifts, many roofs collapsed.
Frigid cold last half of January with the lowest temperature of minus 76 at Tanana. The high at Ambler January 26 was minus 66.