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D.C. space faces icy Thursday morning; winter climate advisory issued – The Washington Submit


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The Nationwide Climate Service has issued winter weather advisories for a lot of the Washington and Baltimore area as freezing rain might create slick walkways and untreated roads through the first half of Thursday.

As is commonly the instances with wintry climate within the area, areas west of the District will see an extended length and higher quantity of frozen precipitation due to colder temperatures. As such, the potential for slippery roads and faculty closings and delays will enhance as you head west of Interstate 95.

Within the quick Washington and Baltimore space (inside a couple of one-county radius), the winter weather advisory lasts from 1 a.m. to 1 p.m. Thursday, with the potential for icy spots through the morning commute. Circumstances ought to regularly enhance because the morning wears on.

Southern Maryland and areas from Fredericksburg south usually are not included in an advisory as a result of temperatures ought to usually stay simply above freezing there.

In our far western areas (Frederick, Carroll and western Loudoun counties), the place chilly air will linger longest, the winter climate advisory extends till 4 p.m.

Precipitation — in all probability within the type of sleet, freezing rain and plain rain — will unfold over the area through the predawn hours. Temperatures will drop to proper round freezing because the precipitation begins in many of the area. Due to above-freezing temperatures forward of this storm, the ice is not going to accumulate on all surfaces. However slick spots might nonetheless develop, particularly on untreated paved surfaces and sidewalks, whereas a really mild glaze of ice might coat tree limbs.

If doable, will probably be finest to keep away from journey early Thursday and use warning for those who should be out. Sidewalks that look moist may very well be deceptively icy and a few icy patches might develop on roads, particularly bridges, ramps and overpasses.

As Thursday wears on, temperatures ought to rise above freezing in most areas from southeast to northwest. Nonetheless, a driving, heavy rain is anticipated after any frozen precipitation, with quantities of 1.5 to 2.5 inches. All in all, will probably be a great day to work at home, if doable.

Towards the mountains, the place an ice storm warning is in effect, circumstances will likely be considerably worse. At the least 0.25 to 0.5 inches of ice might coat tree limbs and energy traces and construct up on roads alongside the Interstate 81 hall (together with Martinsburg, Winchester and Luray) and westward.

“Energy outages and tree harm are doubtless resulting from ice,” the Climate Service cautions. “Journey may very well be practically inconceivable. Hazardous circumstances will doubtless impression the morning and night commutes on Thursday.”

Shenandoah Nationwide Park announced that Skyline Drive will shut at 4:30 p.m. Wednesday in anticipation of the icy climate.

Right here’s an approximate timeframe of how the storm will play out. Within the offered temperature ranges, the coldest readings are for areas farthest north and west of the District and mildest to the southeast, inside a two county radius.

1 to five a.m. Thursday — Sleet, rain and freezing rain develop from southwest to northeast. A couple of slick spots doable. Temperatures: 30 to 35.

5 to 9 a.m. — Freezing rain, besides principally rain south and east of the District. Some slick spots doable. Temperatures: 30 to 34.

9 a.m. to 1 p.m. — Freezing rain adjustments to rain, heavy at occasions, southeast to northwest. Freezing rain might linger in colder pockets far west. Slick spots flip moist besides far west. Temperatures rising to 34 to 40.

1 to five p.m. — Rain, heavy at occasions. Pockets of freezing rain change to plain rain far west. Temperatures rising to 35 to 45.

5 to 9 p.m. — Rain decreases south to north. Temperatures: 35 to 45.

9 p.m. to 1 a.m. Friday — Rain ends from south to north. Temperatures: 35 to 45.

Uncertainties within the forecast

Temperatures current the most important uncertainty on this forecast. Typically, chilly air is tough to dislodge and hangs round longer than anticipated. Thus, it’s necessary to verify temperatures earlier than heading out Thursday morning to make sure they’ve surpassed freezing for those who’re involved about icy spots.

Little iciness could develop in some areas underneath an advisory due to above-freezing floor temperatures forward of the storm. In these areas, the rain may run off moderately than ice over surfaces. Usually milder areas corresponding to downtown Washington and close to the Potomac and Chesapeake Bay usually have the bottom possibilities of iciness.



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