The primary focus of this morning's briefing is the incursion of Arctic air into the Northeast and Mid-Atlantic regions, which is expected to produce perilous wind chills and localized snow squalls. As we delve into the specifics, the National Weather Service has issued warnings regarding the persistent cold and gusty winds that will prevail throughout the weekend. Meanwhile, in the Pacific Northwest, an influx of moisture will manifest as rain at lower elevations and snow in the mountainous areas, accompanied by various coastal and marine hazards. It is also noteworthy that no tropical systems are currently active in either the Atlantic or Pacific basins, and the United States Geological Survey reports several minor seismic activities, including magnitude 2.5 earthquakes in California. As we examine the conditions across individual states, we will highlight significant weather advisories and alerts pertinent to the safety and preparedness of our listeners.

Takeaways:

1. The weather conditions in the Northeast and Mid Atlantic regions are particularly severe, with dangerously low wind chills and occasional snow squalls expected throughout the weekend.
2. The National Weather Service has issued warnings regarding cold and gusty winds, emphasizing the potential for hazardous conditions ahead.
3. In the Pacific Northwest, renewed moisture will bring rain and mountain snow, alongside various coastal and marine hazards that require caution.
4. The absence of tropical systems in both the Atlantic and Pacific basins indicates a period of typical weather patterns, with only routine seismic activity reported across the United States.
5. Multiple small earthquakes have been recorded in California, but there are currently no elevated alerts from emergency management officials for any significant threats.
6. Routine winter weather is anticipated in many states, with specific advisories for freezing drizzle and light ice in Michigan's Upper Peninsula.

Sources

[USGS | https://earthquake.usgs.gov/earthquakes/feed/]

[NWS San Diego | https://www.weather.gov/sgx/]

[NWS New York — briefing PDF | https://www.weather.gov/media/okx/DSSBuilder/LatestBriefing.pdf]

[NWS New York | https://www.weather.gov/okx/]

[NWS Advisory text — MQT | https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=usa&wwa=winter+weather+advisory]

[NWS Gaylord | https://www.weather.gov/apx/]

[NWS Portland | https://www.weather.gov/pqr/]

[NWS Seattle | https://www.weather.gov/sew/]