US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
315 PM EST Wed Jan 19 2022
 
Valid Saturday January 22 2022 - Wednesday January 26 2022
 
Hazards:
- Flooding occurring or imminent across portions of the Lower Mississippi Valley.
- Much below normal temperatures across portions of the Southern Plains and the Southwest, Sat-Sun, 
Jan 22-Jan 23.
- Much below normal temperatures across portions of the Northern/Central Plains, the Upper/Middle 
Mississippi Valley, and the Great Lakes, Sun-Wed, Jan 23-Jan 26.
- Much below normal temperatures across portions of the Northeast, the Central/Southern 
Appalachians, the Tennessee Valley, the Mid-Atlantic, the Southeast, and the Great Lakes, Sat, Jan 
22.
- Heavy precipitation across portions of the Alaska Panhandle and mainland Alaska, Sat, Jan 22.
- Heavy precipitation across portions of the Alaska Panhandle and mainland Alaska, Sun-Mon, Jan 
23-Jan 24.
- High winds across portions of the Alaska Panhandle and mainland Alaska, Mon, Jan 24.
 
Detailed Summary:

Overall, the medium range time period (Saturday, January 22 to Tuesday, January 26) will be 
relatively quiet across the lower 48 while Alaska's Gulf coast experiences an active period. The 
overall pattern will persist through the period as upper-level ridging remains over and along the 
West Coast and a series of short waves round an upper trough, centered around the Northwestern 
Passages of Canada, and eject out into the northern tier of the CONUS. Very cold air will arrive 
into from Texas to the East Coast behind a polar front associated with this Friday/Saturday's 
Mid-Atlantic/Southeast winter storm. High temperatures on Saturday will be between 15-25 degrees 
below normal for much of the eastern seaboard. Another cold front will sweep through the Plains and 
Mississippi Valley on Saturday allowing for another blast of arctic air to invade the Northern 
Plains and Upper Midwest through Midweek. High temperatures will be 20-30 degrees below average for 
many areas during this period. Much of the Northern and Central Plains will warm up this weekend as 
the West remains seasonably warm under the upper-ridge.
 
...Alaska...

The North Pacific jet stream pattern features a deep upper trough southwest of the Aleutians and in 
the Bering Sea. Farther east, an amplifying ridge is forecast to anchor itself over the western 
coast of Canada and through the Alaskan Panhandle. On Friday, a powerful cyclone south of the 
Alaskan Peninsula will tap into rich subtropical moisture, leading to a robust Atmospheric River 
aimed directly at the South Central coast and the northern Panhandle. The southern Panhandle looks 
to receive heavy precipitation too, but lower elevation rainfall and mountain snowfall totals look 
to be significant, especially near Yakutat where ensemble guidance is anticipating the highest 
totals to occur. In addition, strong wind gusts along the coastline associated with a barrier jet 
are possible with gusts in excess of 50 knots possible on Friday. By Sunday, a separate low 
pressure system and Atmospheric River is expected to impact a similar region as the upper-level low 
unravels and moves into western Alaska. Additional gusty winds are possible here as well.

Kebede/Snell