- Day Three
acus03 kwns 230728
Storm Prediction Center ac 230727
Day 3 convective outlook
National Weather Service Storm Prediction Center Norman OK
0227 am CDT Mon Apr 23 2018
Valid 251200z - 261200z
..no severe thunderstorm areas forecast...
isolated thunderstorms are anticipated over portions of the Southern
Plains as well as over portions of the mid-Atlantic states on
A series of shortwave troughs will traverse the broad upper
troughing anticipated east of The Rockies on Wednesday. The
progression of these shortwaves coupled with a building upper ridge
across the intermountain west is expected to result in a general
amplification of the upper pattern by 12z Thursday. Surface pattern
will feature a high progressing southward across the Southern Plains
in the wake of a cold front sweeping across the region.
Isolated elevated thunderstorms are possible from the Permian Basin
into North Texas early in the period with additional development
possible along the front during the afternoon and evening. Limited
instability is currently expected to preclude severe thunderstorms.
Farther east, isolated thunderstorms are possible near the surface
low and attendant trough associated with a weakening cyclone.
Anticipated low coverage and minimal instability will temper severe