US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
423 PM EDT Mon Mar 11 2019
 
Valid Thursday March 14 2019 - Monday March 18 2019
 
Hazards:
- Heavy rain across portions of the Southeast, the Mid-Atlantic, the Southern Appalachians, and the 
Tennessee Valley, Thu-Fri, Mar 14-Mar 15.
- Heavy snow across portions of the Central Plains, the Upper Mississippi Valley, and the Northern 
Plains, Thu-Fri, Mar 14-Mar 15.
- Flooding possible from portions of the Plains to the Great Lakes, and the Middle/Upper 
Mississippi Valley.
- Flooding occurring or imminent across portions of the Central Plains, the Lower Mississippi 
Valley, the Tennessee Valley, the Middle Mississippi Valley, the Southeast, and the Ohio Valley.
- Flooding likely across portions of the Central Plains, the Middle Mississippi Valley, and the 
Upper Mississippi Valley.
- High winds across portions of the Central/Northern Plains, and the Upper/Middle Mississippi 
Valleys, Thu, Mar 14.
- Much below normal temperatures across portions of the High Plains, the Central/Southern Rockies,  
Thu-Sun, Mar 14-Mar 17.
- Heavy precipitation across portions of mainland Alaska, Thu-Mon, Mar 14-Mar 18.
- High winds across portions of mainland Alaska, Thu, Mar 14.
- High winds across portions of mainland Alaska, Fri-Sat, Mar 15-Mar 16.
 
Detailed Summary:

The biggest threat across the CONUS for the medium range period will be a deepen low pressure 
system tracking from the Middle Mississippi Valley northeastward into Northeastern Ontario, Canada 
by Friday.    The storm will bring a wide variety of weather hazards to the CONUS. The system will 
bring heavy snow to parts of the Northern Plains and the Upper Mississippi Valley on Thursday into 
Friday.  An area of heavy rain will accompany the associated front over parts of the Tennessee 
Valley, Southern Appalachians, and parts of the Southeast, also on Thursday into Friday.   Cold 
high pressure over the Northern Rockies will move southeastward to the Central Plains by Saturday.  
Temperatures will be much below normal temperatures Thursday into Sunday over parts of the Rockies 
into the High Plains.   

In Alaska, a strong pressure gradient over the Northern Mainland will produce high wind over the 
area on Thursday.  A series of storms will move across the parts of the North Pacific and move into 
the Gulf of Alaska on Thursday into Monday 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.  High wind is also possible from Kodiak Island to Prince William Sound on Friday into 
Saturday associated with the strong pressure gradient associated with the multiple storms moving 
into the area.

Ziegenfelder