In the wake of record chill in the Eastern states this week, temperatures will recover to seasonable levels into the weekend, but unsettled weather will accompany the warmup.
Temperatures challenged and set record low levels Wednesday morning in the Midwest and South. During Thursday morning, more than two dozen record low temperatures were tied or broken. Some of the record lows for the date have been on the books for decades. In a few cases, Thursday was the coldest March 27 morning in over 100 years.
The temperature at Harrisburg, Pa., dropped to 19 degrees and tied the record low for the date set in 1894. Record lows were set around New York City, Baltimore, Washington, D.C., and other locations Thursday morning.
This temperature map was prepared by the National Oceanic and Atmospheric Administration.
There is some good news for people tired of waiting for the bus or walking to school with temperatures in the single digits, teens and 20s F. More seasonable temperatures are in the offing into the first part of the weekend.
Typical high temperatures for late March range from near 40 in northern New England to the 50s over much of the mid-Atlantic and the 60s and lower 70s in the South.
Thursday will be the nicest day of the week in terms of dry weather and sunshine for most of the Appalachians and the Atlantic Seaboard.
However, rain in the Ohio Valley on Thursday with a wintry mix and snow farther north over Michigan and Wisconsin was moving eastward.
During Friday, the storm system associated with the precipitation in the Midwest will move along to the east.
Despite the wet weather moving in Friday, most areas in the Appalachians and Atlantic coast will have their highest temperatures of the week, which will be several degrees above normal.
While one batch of rain from Friday will fade at night, a second batch of rain is forecast to roll northeastward over the Appalachians and Atlantic Seaboard on Saturday and may last through Sunday along the coast.
The rain will move into southeastern and south central Pennsylvania during Saturday morning, where trout fishing season begins.
Cooler air is forecast to begin to slosh southward and eastward over New England and the central Appalachians Saturday. It may cool down enough to allow a wintry mix or a chance to all wet snow over portions of Indiana, Ohio, northern and western Pennsylvania, upstate New York and northern and western New England by Saturday night.
Warmth will hold on the longest in the South. In portions of the Carolinas and Georgia, the air may be warm and humid enough to bring strong to locally severe thunderstorms on Saturday.
Chilly weather will settle to the Atlantic coast by Sunday.
According to AccuWeather.com Long Range Expert Paul Pastelok, "Temperatures are forecast to be cooler than average into the middle of April for much of the Midwest and the East, but overall the air will not be as cold as what has occurred and many have already endured in recent weeks and much of this winter."
The long-range team expects the cold pattern to break down in part of the Midwest and East later in April.
An unusually strong push of cool air for early September will move southward along the Atlantic Seaboard into the Labor Day weekend, before July-like heat returns by next week.
While lulls in tropical activity in the Atlantic will continue, a rapid end to the hurricane season in September does not always occur during an El Nino.
After heat has dominated headlines this summer, cool air has finally taken control of the northern half of Europe with no signs of departing anytime soon.
Steering winds could take Ignacio, as a remnant storm, into the southeastern arm of Alaska or British Columbia during the middle days of next week.
While Tropical Storm Kevin will stay well away from Mexico, its moisture will still lead to an increase in showers and thunderstorms from Baja California to the Four Corners region of the United States.
A stormy weather pattern will prevail through September across much of southern South America.
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