WEATHER BLOG: Spring Snow

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Bernadette Woods

Happy spring!

Yes, it’s officially spring, the end of March, and we are getting our biggest snow of the season in some places. Now that’s not saying much when the highest amount at BWI-Marshall prior to Monday was 2″. So far, 2.1″ of snow has been reported at the aiport with a little more still possible. That will also bring our seasonal total closer to 7″ (4.8″ going into Monday).

The main low driving this entire storm is still sitting back over Ohio. At the same time, the new low is taking over offshore. As we move through the afternoon, the coastal low will take over and strengthen before it finally moves up the coast. That will keep rounds of moisture around through the evening, with us not drying out until Monday night.

Snow is slowing down in many places, and mixing with a drizzle or rain. Here on TV Hill, the mixing is currently underway (at noon), while it has gone over to a drizzle in Canton. But the farther north and west you go, the colder air is hanging on longer. There is not going to be much more accumulation heading through the afternoon, but maybe just a little on the current snow pack. This is a link to updated snowfall amounts from the NWS.

Even though roads were slushy and some were snow covered Monday morning, with temperatures on the rise and the sun now up, most roads will just be wet through the afternoon. However, when the storm comes to an end Monday night, temperatures will drop below freezing. That would cause any untreated slush to re-freeze and could create slicker roads conditions Tuesday morning vs. Monday morning in many places.

Sunshine will come out Tuesday, mixing with clouds. A gusty northerly wind will keep highs in the 40s – above Monday but still well below average. A new round of clouds will push in from the north Wednesday into Thursday, maybe producing another shower or two. Otherwise, temperatures will slowly climb through the week and get back to the 50s for Easter weekend.

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