Washington, DC 14 Day Weather

Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 345 PM EDT Mon Oct 25 2021 Valid Tue Oct 26 2021 - Thu Oct 28 2021 ...Powerful autumn nor'easter to produce high winds and heavy rain across parts of the Northeast and New England beginning early Tuesday... ...System recently responsible for heavy rain and high elevation snow across California to swing across the Intermountain West and eventually spark severe thunderstorms throughout the central/southern Plains Tuesday evening... ...Unsettled weather lingers over the Northwest and Northern Rockies through at least Thursday... A vibrant weather pattern impacting the Nation this week will feature two separate storm systems, with each capable of producing various weather hazards. In the East, a developing autumn nor'easter is currently gaining strength off the Mid-Atlantic coastline, while an approaching cold front nears the Appalachians. A few scattered severe thunderstorms are capable between central North Carolina and Virginia this evening as the aforementioned cold front interacts with an abnormally warm and moist airmass located across the Mid-Atlantic. As the cold front exits the East Coast and an associated upper-level trough over the Great Lakes turns negatively tilted, the low pressure system moving northward near southern New England is forecast to rapidly strengthen. As a result, widespread moderate to heavy rain is expected to blossom over the Northeast and New England on Tuesday, which could produce isolated instances of flash flooding. High northeasterly winds will also be a concern as widespread gusts up to 50 mph can be expected throughout the region, with higher winds along southern New England and the immediate coastlines. The warm autumn temperatures have resulted in many trees retaining leaves this late into the season, which could lead to an increasing risk of tree damage and power outages. Flash Flood and High Wind Watches have been issued between Cape Cod and southern New Jersey. The storm system is expected to slowly exit farther into the Atlantic Ocean on Wednesday, with lingering showers and gusty winds remaining along coastal regions. The system responsible for the recent atmospheric river event to impact California is slowly exiting the Golden State as the associated cold front and upper-level trough pushes eastward. Showers and high elevation snow is expected to swing through southern California and the Great Basin tonight before reaching the Central Rockies by Tuesday. By Tuesday afternoon and early evening, a low pressure system is forecast to develop across the central High Plains and will help surge the previously mentioned cold front southeastward across the Southern Plains. This will also aid in sparking a line of potentially severe thunderstorms Tuesday night from Kansas to central Texas. Damaging wind gusts, large hail, and isolated tornadoes are possible. The Storm Prediction Center has issued an Enhanced Risk (level 3/5) of severe weather between central Kansas and north-central Texas in order to highlight the concern. By Wednesday, the low pressure system and threat of severe thunderstorms is forecast to shift into southeast Texas and the central Gulf Coast region. Elsewhere, continued vigorous flow off the Pacific Ocean in conjunction with an approaching frontal system will help maintain unsettled weather across the Northwest and Northern Rockies over the next few days. Isolated instances of flooding are possible, specifically along coastal regions of Washington and Oregon on Wednesday. Snell Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
Storm Prediction Center
United States 2 Day Forecast
WPC Short Range Forecasts (Days ½-2½)