U.S. Severe Weather Forecast for Tomorrow
Upcoming severe weather outlook.
acus02 kwns 261730
Storm Prediction Center ac 261716
Day 2 convective outlook
National Weather Service Storm Prediction Center Norman OK
issued by 15th ows Scott Air Force Base Illinois
1216 PM CDT Thursday Mar 26 2015
Valid 271200z - 281200z
..there is a marginal risk of severe thunderstorms from central Florida to the
Isolated strong thunderstorms are possible across the central and
southern Florida Peninsula Friday.
Strong height falls will overspread the southeastern U.S. Friday as
middle-level flow strengthens along the Carolina coast and increases to
near 100kt. This large-scale evolution should force cold front into
the Central Peninsula by 18z with subsequent movement expected into
the Keys by 28/06z. While deep-layer flow will veer and strengthen
across the peninsula ahead of the cold front...it appears
pre-frontal air mass will remain sufficiently moist for convective
development along advancing cold front. NAM forecast soundings
suggest modest boundary layer heating should contribute to low level
lapse rates supporting SBCAPE on the order of 1000-1500 j/kg.
Robust updrafts could evolve across the central/southern peninsula given
expected deep-layer shear. Primary threat will be marginally severe
wind gusts with near-frontal convection.
Strong short-wave trough will spread across Washington/Oregon during the latter
half of the day2 period. Large-scale ascent should increase ahead
of this feature across the interior-northwest where daytime heating should
contribute to weak buoyancy. Isolated thunderstorms may develop
within favorable southwesterly flow regime immediately ahead of short wave.