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KF5JRV > WX 30.03.17 12:25l 63 Lines 3265 Bytes #999 (0) @ USA
BID : 13240_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 3/30
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170330/1120Z 13240@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
429 AM EDT Thu Mar 30 2017
Valid 12Z Thu Mar 30 2017 - 12Z Sat Apr 01 2017
...Severe thunderstorm potential today across much of the Ohio Valley and
points southward to the Gulf Coast...
...Heavy snow likely for the Northern/Central Rockies, Great Basin and
Wasatchs...
...Heavy rain possible for areas east of the Mississippi River...
Widespread showers and thunderstorms are forecast for much of eastern half
of the U.S. over the next couple of days as a robust low pressure system
tracks eastward across the Midwest and through the Tennessee/Ohio valley
today, reaching the Atlantic Coast by Friday evening. The Storm Prediction
Center continues to identify conditions favorable for severe thunderstorm
development across much of the Ohio Valley southward to the Gulf Coast
today and tonight. The highest threat (Enhanced Risk) will extend from the
southern half of Illinois and Indiana and Ohio, southward across the
western Tennessee Valley and into Central Mississippi during this time.
These outlined areas will be located nearest to the approaching cold front
and will experience the best lift/instability. Additionally, some of these
storms may produce heavy rainfall; which may increase the threat for flash
flooding. Refer to SPC's Convective Outlooks and WPC's Excessive Rainfall
Outlooks for specific details. This system is expected to reach the
Appalachians/Mid-Atlantic region by Friday morning and will usher in
showers and thunderstorms across this region beginning tonight. A mix of
rain and snow may develop over parts of the Upper Great Lakes today and
tonight, while a wintry mix of rain, snow, and ice is expected across the
northeast starting tonight and continuing over the next couple of days.
Winter Storm Watches and Winter Weather Advisories are currently in effect
for portions of the Northeast as a result.
Meanwhile, upper-level energy will continue to dig southward across the
western U.S. today and tonight. At the surface, a series of low pressure
system and frontal features will continue their track inland, reaching the
western edge of the Central and Northern Rocky Mountains by this
afternoon/evening. A stream of moist onshore flow will result in rain and
higher elevation snow for the Pacific Northwest inland into the Central
and Northern Rockies during this time, with snow expected to continue
overnight. Snow, potentially heavy, will persist across the highest
elevations of the Northern/Central Rockies and the northern portion of the
Great Basin Friday night into Saturday. Winter Weather Advisories and
Warnings are in effect for portions of the Bitterroots, and the Uinta and
Wasatch Mountains. Flood Statements are also in effect for large portions
of Idaho. The system is expected to split as it continues eastward from
the Rockies during the day Friday, with one section moving into the
north-central U.S., and another into the south-central U.S. The southern
system will be the focus for more rain and thunderstorm development across
the Southern Plains as we head through Saturday and into Sunday.
Wix/Campbell
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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