US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
333 PM EST Tue Nov 05 2019
 
Valid Friday November 08 2019 - Tuesday November 12 2019
 
Hazards:
- Heavy snow across interior northern New England, Fri, Nov 8.
- Heavy precipitation across coastal northern New England, Fri, Nov 8 and Tue, Nov 12.
- Heavy snow across portions of the central Great Lakes, Tue, Nov 12.
- Heavy rain across portions of the southern Plains, Tue, Nov 12.
- Much below normal temperatures across much of the eastern two-thirds of the U.S., Fri-Tue, Nov 
8-Nov 12.
- Much below normal temperatures across portions of the Southeast, the lower Mississippi Valley, 
and the southern Plains, Fri-Sat, Nov 8-Nov 9.
- Much below normal temperatures across portions of the northern and central Plains, and into the 
northern Rockies, Sun-Tue, Nov 10-Nov 12.
- Much below normal temperatures across portions of the Northeast, Mon-Tue, Nov 11-Nov 12.
- Much above normal temperatures across portions of northern Alaska, Sun-Mon, Nov 10-Nov 11.
- Much above normal temperatures along the coastal plains of northern Alaska, Sun-Tue, Nov 10-Nov 
12.
 
Detailed Summary:

The medium range period will begin with a decent chance of snow on Friday across interior New 
England while mixed precipitation appears more likely closer to the coast.  This is due to the 
intensification of a low pressure system as it rides along a front offshore.  There is still 
uncertainty regarding the track and intensity of this low, which will likely influence the duration 
and intensity of the precipitation as well as the associated rain-snow line.  We are leaning toward 
the ECMWF solutions which show a track closer to the New England coast, which would allow warmer 
air from the Atlantic to change snow to mixed precipitation.

Behind the storm, arctic air will dominate much of the eastern two-thirds of the country except 
Florida and the central High Plains.  Temperatures are expected to be more than 20 degrees below 
normal for a good chunk of the area.  Meanwhile, a colder surge of arctic air is forecast to reach 
the northern Plains on Saturday.  This surge of arctic air is forecast to bring even more 
widespread much below normal temperatures into the eastern two-thirds of the country for early to 
middle of next week.  Actual low temperatures are expected to dip into the single digits across the 
northern Plains by Sunday morning.  The arctic air will also promote the possibility of heavy 
lake-effect snow over the central Great Lakes by next Tuesday.

Across the Deep South, models are indicating the return of moisture from the western Gulf of Mexico 
by next Monday.  This could escalate into a heavy rainfall situation across far southern Texas by 
next Tuesday.

Over in Alaska, much above average temperatures are expected to spread into the coastal plains of 
northern Alaska by next Sunday.  Along the south coast of Alaska, it appears that a series of 
fronts and low pressure systems will bring sustained precipitation into the area through the 
medium-range period.  However, uncertainty remains high regarding the intensity of individual 
systems, and the resulting rainfall amounts appear marginal for a heavy rain area.  Another cyclone 
could deliver increasing winds and precipitation into the Aleutians from early to middle of next 
week.  But again the uncertainty is too high to specify any hazard areas at this time.

Kong