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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1949Z Mar 20, 2019)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 349 PM EDT Wed Mar 20 2019 Valid 00Z Thu Mar 21 2019 - 00Z Sat Mar 23 2019 ...Major to historic river flooding will continue across parts of the Mississippi and Missouri River Basins with areal flooding a threat across parts of the Northwest and Northern Rockies as well... ...A developing coastal storm will bring unsettled weather to the Mid-Atlantic and Northeast through the end of the week... ...Heavy snow is possible across the mountains of central Utah and southwest Colorado Thursday and Friday... Despite dry weather, major to historic and catastrophic flooding will continue across parts of the Missouri and Mississippi River Basins due to rapid snowmelt as a result of heavy rainfall last week. Flood warnings and advisories remain in effect for parts of the region. Areal flooding is also a concern across parts of the Northwest and Northern Rockies/High Plains as warm temperatures this week are leading to accelerated snowmelt and the potential for ice jams. The main sensible weather threat in the short range will be with a developing coastal low pressure system off the Carolina coasts Wednesday evening, tracking up the East Coast through the end of this week. Moderate to locally heavy rainfall is likely across the Mid-Atlantic states on Thursday, shifting northward into the Northeast by early Friday. The potential for accumulating snowfall exists across portions of the interior Northeast and Northern New England through the start of this weekend. Meanwhile, a couple of weak fronts moving through the Midwest will allow for mainly light rain from the Mid-Mississippi Valley to the Ohio Valley Thursday and Friday, with some light snows also possible across the Upper Great Lakes. An occluded/cold front moving through California this afternoon and into the Southwest states by Thursday will bring increased chances for rain and mountain snows to California, the Central Great Basin, and into the Southwest/Four Corners region. Snowfall totals over a foot are possible across the higher elevations of Utah and southwest Colorado. Another cold front will enter the West Coast and Pacific Northwest by late Friday and bring another round of rain and mountain snow. Happy Vernal Equinox! Snell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php