US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
412 PM EDT Mon Jul 06 2020
 
Valid Thursday July 09 2020 - Monday July 13 2020
 
Hazards:
- Heavy rain possible from eastern Kansas to western Missouri, as well as near the North Carolina 
coast, Thu-Fri, Jul 9-Jul 10.
- Flooding possible across portions of the northern Plains.
- Flooding occurring or imminent over portions of central North Dakota.
- Excessive heat across portions of the southern Plains to the lower Mississippi Valley, Fri-Sun, 
Jul 10-Jul 12.
- Much above normal temperatures across portions of the southern High Plains, Sat-Mon, Jul 11-Jul 
13.
- Much above normal temperatures across portions of northern New England and into the Great Lakes, 
Thu-Fri, Jul 9-Jul 10.
 
Detailed Summary:

A slowly evolving summer weather pattern is expected to continue into the medium range period (Thu 
7/9 - Mon 7/13) across the U.S.  Much of the western U.S. will remain dry with temperatures not 
straying too far from average.  This means that high temperatures will soar well into the 110s for 
the lower elevations of the Desert Southwest while highs only in the 60s are forecast along the 
coast of the Pacific Northwest.  Over the southern High Plains, however, a building ridge of high 
pressure aloft will allow afternoon temperatures to reach the century mark, and possibly approach 
110 degrees at the hottest locations by early next week.  Thankfully, the humidity there should be 
relatively low to keep it feel too oppressive.  In contrast, moist air from the Gulf will make the 
heat feel very oppressive over the Aka-la-tex region of the southern Plains to the lower 
Mississippi Valley and just inland from the Texas coast, where an area of Excessive Heat is 
indicated.  The actual high temperatures in this area will be less than 10 degrees above normal.

Over the Northeast, heat will extend into the medium-range before cooler and drier air slowly 
filters in from Canada by early next week.  The area from the central Great Lakes to northern New 
England will initially see temperatures much higher than normal.

Much of the eastern two-thirds of the country is not expected to be under any high threat of heavy 
rain through the medium-range period.  Nevertheless, some heavy rain is possible across eastern 
Kansas to western Missouri Wednesday night into Thursday morning as a cold front interacts with a 
surface trough.  Meanwhile, rain could be heavy near the North Carolina coastal areas as a low 
pressure wave is forecast to track near or just off the East Coast.  The National Hurricane Center 
is also monitoring this area for any potential for tropical cyclone formation during the 
medium-range period.  Across northern New England, there is some potential for enhanced rainfall 
Sunday into Monday as a frontal system from eastern Canada begins to interact with the coastal low. 
 No area of heavy rain is indicated for northern New England at this time.  

Alaska should remain hazards-free as the state is wedged between the northern stream across the 
Arctic Ocean and the southern stream across the northeast Pacific.  Stronger winds are expected 
across the Alaska Peninsula on Thursday as a low pressure system develops in the Gulf of Alaska but 
they should be below hazard criteria.

Kong