- Day Three
acus03 kwns 310730
Storm Prediction Center ac 310729
Day 3 convective outlook
National Weather Service Storm Prediction Center Norman OK
0229 am CDT Friday Oct 31 2014
Valid 021200z - 031200z
..no severe thunderstorm areas forecast...
showers and thunderstorms will affect The Four Corners states during
the day on Sunday...and may spread as far east as the Central Plains
Sunday night and into Monday morning.
As the eastern U.S. Upper trough shifts off the middle/southern Atlantic
coast and across New England...the more slowly advancing western trough
will remain over the western half of the country. In between...a
slow-moving ridge will remain aligned roughly along the MS valley.
With a cool/Continental surface airmass in place over the eastern half
of the country and high pressure spreading across the northwestern states in
the wake of an advancing cold front...deep/moist convection should
be largely confined to The Four Corners states during the day in
advance of the approaching upper trough. Later...as a nocturnal
low-level jet increases across the plains...some potential for
elevated convection may spread as far east as the Kansas/Nebraska vicinity
through the end of the period.