US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
400 PM EDT Tue Mar 12 2019
 
Valid Friday March 15 2019 - Tuesday March 19 2019
 
Hazards:
- Heavy rain across portions of the Southeast, Tue, Mar 19.
- Flooding possible across portions of the Central/Northern Plains, the Mississippi Valley, the 
Tennessee Valley, the Great Lakes,  and the Southern Plains.
- Flooding occurring or imminent across portions of the Southeast, the Middle/Lower Mississippi 
Valley, the Ohio Valley, and the Tennessee Valley.
- Flooding likely across portions of the Northern/Central Plains, and the Upper/Middle Mississippi 
Valley.
- High winds across portions of the Great Lakes and the Upper Mississippi Valley, Fri, Mar 15.
- Much below normal temperatures across portions of the Northern/Central Plains, the Central 
Rockies, the Southern Rockies, the Southern Plains, and the Southwest, Fri-Sat, Mar 15-Mar 16.
- Heavy precipitation across portions of the Alaska Panhandle and mainland Alaska, Fri-Tue, Mar 
15-Mar 19.
- High winds across portions of the Alaska Panhandle and mainland Alaska, Fri-Mon, Mar 15-Mar 18.
 
Detailed Summary:

A deep upper-level trough and cold high pressure at the surface will aid in producing much below 
normal temperatures from Friday into Saturday over the Southern Plains/Southern Rockies into parts 
of the Western Gulf Coast.  A smaller region will also develop over parts of the Central 
Plains/Central Rockies on Friday into Saturday.  In addition, deep low pressure over Eastern 
Ontario, Canada and the associated pressure gradient over Northern Michigan will aid in producing 
high wind over parts of the Upper Great Lakes on Friday.  Additionally, a cold front extending from 
the Lower Great Lakes southward to the Eastern Gulf Coast on Friday will move southeastward and 
become stalled over the southern tip of Florida on Sunday.  The front will aid in focusing moisture 
overrunning the boundary that will produce heavy rain over parts of Southern Florida on Tuesday.    

In Alaska, a series of storms will move across parts of the North Pacific and move into the Gulf of 
Alaska on Friday into Tuesday with a stream of moisture moving into the Gulf of Alaska Coast that 
will aid in producing heavy precipitation from the Alaska Peninsula to Prince William Sound and 
into parts of the Alaska Panhandle on Friday into Tuesday.  High wind is also possible from Kodiak 
Island to Prince William Sound into parts of the Alaska Panhandle on Friday into Monday associated 
with the strong pressure gradient associated with the multiple storms moving into the area.

Ziegenfelder