Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
258 PM EST Thu Dec 13 2018
Valid 00Z Fri Dec 14 2018 - 00Z Sun Dec 16 2018
...There is a slight risk of severe thunderstorms over parts of
...Heavy rain possible over parts of the Eastern Gulf Coast to parts of
the Mid-Atlantic and parts of Middle Mississippi Valley/Western Ohio
Valley into parts of the Southern Plains...
...Heavy snow possible over parts of the Olympic Peninsula and the
...Slight risk of excessive rainfall over parts of the Mid-Atlantic and
A storm over the Southern Plains/Lower Mississippi Valley will move
northeastward to the Ohio Valley/Mid-Atlantic by Saturday. The system
will produce showers and thunderstorms over parts of the Southern
Plains/Lower Mississippi Valley that will move eastward off the Southeast
Coast by Saturday. Light snow will develop over parts of Central Texas
ending by Friday morning. In addition, rain will develop over parts of
the Southern Plains into the Ohio Valley into the Lower Mississippi Valley
that will move eastward to the Mid-Atlantic/Southeast by Friday afternoon.
The rain will also expand into the Great Lakes overnight Thursday moving
into the Northeast by Friday evening, ending over Northern New England by
Saturday morning. The rain will end overnight Friday over the Southern
Plains and the Lower Mississippi Valley on Saturday morning.
Meanwhile, a front over the Eastern Pacific moves onshore over the West
Coast on Friday afternoon moving inland to the Northern High
Plains/Northern Rockies into parts of the Great Basin by Saturday.
Moisture ahead of the boundary will aid in producing rain over parts of
the Pacific Northwest and snow over parts of the Northern Intermountain
Region that will wane over the Northern Intermountain Region by Friday
morning. By Friday afternoon, rain will develop over parts of the Pacific
Northwest Coast into Northern California Coast that will expand inland by
Friday evening with rain and higher elevation snow. Snow returns to the
Northern Intermountain Region and into parts of the Northern Rockies by
Saturday morning. The rain and snow will wane on Saturday.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php