Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 323 AM EDT Sun Mar 17 2019 Valid 12Z Sun Mar 17 2019 - 12Z Tue Mar 19 2019 ...Quiet weather for much of the CONUS through the short range... ...Major to historic river flooding will continue across parts of the Mississippi and Missouri River Basins... ...Warm temperatures and snow melt may lead to areal flooding across portions of the Northwest and Northern Rockies... Daily chances for showers and thunderstorms are expected across Florida as a frontal boundary lingers and eventually drifts slowly into the Caribbean. To the north, light rain or snow is possible associated with a weak low pressure system moving from the Ohio Valley to the Mid-Atlantic Sunday and Monday. Elsewhere across the lower 48, surface high pressure dominates keeping the weather quiet and mostly dry. Temperatures from the Rockies eastward should continue to be near or below normal, with the greatest departures expected on Sunday across the Southern Plains and Monday in the Ohio Valley and the Appalachians. Both areas could see afternoon highs 10 to 20 degrees below normal. Major to historic river flooding is expected to continue across parts of the Missouri and Mississippi River basins where heavy rainfall last week resulted in rapid snow melt. Flood warnings and advisories remain in effect for some locations. Warmer than average temperatures across the Northwest and Northern Rockies may also lead to accelerated snow melt for lower elevations and potential flooding issues. Santorelli Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php