U.S. Severe Weather Forecast for Tomorrow
Upcoming severe weather outlook.
acus02 kwns 260512
Storm Prediction Center ac 260510
Day 2 convective outlook
National Weather Service Storm Prediction Center Norman OK
1210 am CDT sun Apr 26 2015
Valid 271200z - 281200z
..there is a slight risk of severe thunderstorms from north central Texas to the central
..there is a marginal risk of severe thunderstorms immediately surrounding the
Scattered severe thunderstorms will develop from north central Texas
to the central Gulf Coast during the day2 period.
..TX to central Gulf Coast...
Strong middle-level speed maximum is forecast to dig southeastward across the lower
Colorado River valley into northern Mexico before ejecting eastward into the Edwards
Plateau during the latter half of the day1 period. Exit region of
this jet will overspread the dry line across west-central Texas and
pronounced difluent high-level flow will encourage widespread
convection across the Southern Plains late Sunday...especially north of
synoptic cold front. Northern edge of severe threat will be greatly
influenced by position of cold front/effective boundary that should
be draped across north central Texas at daybreak Monday. There is some
concern that greatest buoyancy may be displaced a bit farther south
than latest NAM suggests. As upper low drifts eastward across the Southern
Plains it appears the strongest boundary layer heating will be
observed across southwestern into central Texas Monday afternoon...just west of
surface front/dry line.
Early in the period...thunderstorms should be ongoing across much of
OK within strong warm advection regime. This activity should
spread/develop southeastward into the warm sector by middle day as convective
inhibition should be negligible across this region. Strong
deep-layer shear will prove supportive for organized storms and
isolated supercells are certainly possible...though storm mergers
and clusters appear likely given the widespread convective coverage.
Large hail...damaging winds...and perhaps a few tornadoes can be
expected with thunderstorms that evolve across Texas during the day. Activity
that develops along the central Gulf Coast will do so within a weaker
lapse rate environment and hail should generally be sub-severe.