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Heavy snow hits Arizona on the first day of spring, U.S.

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Image credit: ADOT

Parts of northwest Arizona saw heavy snow on the first day of spring on Thursday, March 19, 2020, with up to 30 cm (12 inches) in parts of the country.

The National Weather Service (NWS) said up to 30 cm (12 inches) of snow fell in Flagstaff by 05:00 LT on Thursday, urging drivers to cancel travels as roads were blanketed in snow and ice.

NWS Flagstaff also warned of "poor visibility and accumulating snow on the roads," reiterating that it is best to avoid travel if possible.

Interstate-40 was open in both directions near Williams, around 56 km (35 miles) west of Flagstaff, said ADOT. However, the department added that it would take time to clear miles of a traffic backup.

The weather service said temperatures will gradually warm over the weekend, before returning to normal by March 21. A flood warning for small streams, however, remains in effect until Sunday for Gila county.

"The low will finally eject northeastward on Saturday afternoon, with precipitation chances ending for the entire area. The warming trend will continue this weekend, as high temperatures will reach near normal values by Sunday," said NWS.

"As we head into next week, a weak disturbance will brush the state to the north on Monday. A few showers are likely to develop as it does so, but no major impacts are anticipated. The most notable weather feature for the first half of the week will be a tightening pressure gradient over northern Arizona."

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