US Day 3-7 Hazards Outlook
NWS Weather Prediction Center College Park MD
414 PM EDT Tue Jul 02 2019
 
Valid Friday July 05 2019 - Tuesday July 09 2019
 
Hazards:
- Heavy rain across portions of the northern and central Plains, Fri-Sat, Jul 5-Jul 6.
- Heavy rain across portions of the central Plains, and the coastal area of Georgia, Tue, Jul 9.
- Heavy rain across portions of coastal North Carolina, Sun-Mon, Jul 7-Jul 8.
- Flooding occurring or imminent across portions of the central Plains, the middle Mississippi 
Valley, the lower Mississippi Valley, the southern Plains, and the Ohio Valley.
- Flooding likely across portions of the upper Mississippi Valley and the northern Plains.
- Enhanced wildfire risk across portions of the Alaska Panhandle, mainland Alaska, and the 
Aleutians, Fri-Tue, Jul 5-Jul 9.
- Much above normal temperatures across portions of mainland Alaska, Sat-Tue, Jul 6-Jul 9.
- Tropical cyclone Barbara could be in the vicinity of Hawaii early next week, Mon-Tue, Jul 8-Jul 9.

Detailed Summary:

A slight change in the upper-level pattern is expected for the eastern U.S. during the medium-range 
period as a broad trough axis is forecast to linger near or just off the East Coast.  Somewhat 
cooler and drier air behind a cold front is expected to filter southward from New England into the 
Mid-Atlantic during the weekend.  This pattern will keep the heat and humidity suppressed through 
the medium-range period for much of the eastern U.S., where excessive heat is not anticipated.  
Meanwhile, the trailing cold front is forecast to become nearly stationary across the central 
Plains through the northern High Plains.   Scattered showers and thunderstorms are expected to be 
most active near and to the north of the front where general rainfall amounts could be marginally 
heavy on Friday and Saturday as well as next Tuesday.  Nevertheless, there is a decent chance for 
locally heavy rain to pass through anywhere across the northern High Plains through the central 
Plains and eastward into the Mid-Atlantic during the afternoon and evening hours.  In fact, 
rainfall could be marginally heavy near the North Carolina coast Sunday and Monday, and near the 
Georgia coast on Tuesday as the front becomes slow-moving across the vicinity.

For Alaska, an anomalous upper-level high is forecast to dominate a large portion of Alaska into 
early next week.  Temperatures are forecast to reach record high levels across southern Alaska, and 
they are expected to spread further inland and westward toward the west coast during the weekend. 
The anomalous warmth will also be accompanied with an increasing risk of wildfires. Check the GIS 
hazards map for the areal extent of the excessive heat and the fire weather risk anticipated over 
Alaska.

Over Hawaii, we are monitoring the progress of Hurricane Barbara, which is currently intensifying 
rapidly as a major hurricane well to the southwest of Mexico.  Global models indicate that Barbara 
will be moving across the vicinity of Hawaii during the Monday to Tuesday time frame.  The storm 
should most likely be weakening as it approaches Hawaii early next week.  However, with above 
normal sea-surface temperatures around Hawaii, the future track and intensity of Barbara will need 
to be watched closely.

Kong