Warm air to again surge into the Midwest and Northeast into this weekend with some cities nearing records, but another push of cooler Canadian air will return by early next week as the temperature ups-and-downs continue.

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Moisture from a Hawaii-connected atmospheric river will bring periods of heavy rain, rising rivers and flooding concerns across western Washington and southwestern British Columbia into Friday.

Also, a bright meteor streaked across the sky over Ohio and Pennsylvania around 9 a.m. Tuesday, producing a loud sonic boom that rattled homes in the Cleveland area.

And the National Park Service warned hikers about quicksand in Glen Canyon National Recreation Area, especially near shorelines and drainages where ground can look dry but give way.

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Record-challenging heat will surge across the Southwest this week as a stubborn heat dome sends temperatures into the 90s and even past 100 degrees in some cities, levels more typical of late spring or early summer.

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The threat for severe thunderstorms packing damaging winds and tornadoes will ramp up Sunday into Monday across the central and eastern US

Also, a strengthening heat dome will send temperatures soaring into the 90s and past 100 degrees across the Southwest, threatening records, accelerating snowmelt and raising wildfire risk now, then water supply concerns later.

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A rapidly strengthening storm could evolve into a bomb cyclone, unleashing blizzard conditions in the Midwest and severe thunderstorms, flooding rain and damaging winds in much of the central and eastern United States.

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An El Niño watch has been issued, and AccuWeather long-range forecasters say there is a chance it becomes just the third “super El Niño” in the past 30 years.

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Potentially damaging winds will sweep from the Rockies to the Northeast as a fast-moving clipper storm spreads snow across the northern tier and heightens wildfire risk across parts of the Plains.

Also, in addition to a lack of snowfall compared to the historical average, nine states had their warmest year on record.

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Nighttime tornadoes are nearly twice as deadly as daytime storms, with the Southeast facing the highest risk and manufactured homes accounting for a disproportionate share of fatalities.

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A rare, early-season tornado in Michigan was the strongest to hit the state since 1977, and left four dead, including a 6th grader.

Also, meteorological winter runs from the start of December through the end of February, but that's not true for the coldest part of the year in many places.

Plus, NASA on Thursday walked back a prediction that an asteroid had a "small, but notable" chance of impacting Earth or the moon in 2032 based on newly analyzed data.

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Severe storms with damaging wind gusts, hail and tornadoes, will take hold across portions of the central United States toward the middle of the week.

Also, warmer air will push out the Northeast chill as much of the eastern U.S. turns 15-25 degrees above average, with some communities from Florida to the Ohio Valley challenging record highs.

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Record levels of seaweed in the Atlantic are piling up in the Caribbean, just in time for spring break. This year is expected to be another record year for the stinky seaweed.

Also, National Park Service released its official peak bloom forecast for Washington, D.C.’s iconic Yoshino cherry trees. Experts say weather patterns in late winter and early spring determine when 70% of blossoms open around the Tidal Basin.

And, the Oklahoma Highway Patrol said the 47-year-old mother and her 13-year-old daughter were found near U.S. Highway 60 after a suspected tornado touched down near Fairview.

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