360 FXUS01 KWBC 211935 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 335 PM EDT Wed Oct 21 2026 Valid 00Z Thu Oct 22 2026 - 00Z Sat Oct 24 2026 ...Norâ€easter continues to produce coastal impacts along the Eastern Seaboard; conditions improve tomorrow... ...Excessive rainfall and severe weather impacts California, the Southwest, and Four Corners... A Nor'easter situated well-off the Mid-Atlantic coastline continues an offshore track into the Atlantic. Before the storm pulls further away from the coastline late tomorrow, strong onshore winds will maintain coastal flooding conditions, offshore gales, and beach erosion over portions of the Eastern Seaboard today. Along the opposite coastline, a strong closed-low with a tap of tropical moisture is forecast to barrel toward California later today. Radar this afternoon shows several areas of showers and thunderstorms surging northward over Coastal California, Desert Southwest, and Four Corners ahead of this strong system. Scattered to numerous instances of excessive rainfall area a concern with this activity today and tomorrow, owing to the tropical connection of this system. Also of note is the potential for severe weather this afternoon and evening focused over Central Arizona. The Storm Prediction Center is monitoring storms in this area for hail greater than 2", a few tornadoes, and damaging wind gusts. Tomorrow, the focus for severe weather will shift into Southeast Arizona, with all hazards possible. Temperature-wise, cool weather will spread across the West over the next few days as clouds, precipitation, and eventually a cold front overtake the region. Meanwhile, an amplified upper-ridge in the Central U.S. will promote above average to well above average temperatures through this weekend. Temperatures in the East will meander at and below average through this weekend as surface high pressure settles in behind the Nor'easter. In fact, a few areas could see their first frost of the season as overnight temperatures over the Northeast and New England near freezing this week. Asherman/Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$