####018001838####
ACUS01 KWNS 130054

SWODY1

SPC AC 130053



Day 1 Convective Outlook  

NWS Storm Prediction Center Norman OK

0753 PM CDT Fri Apr 12 2024



Valid 130100Z - 131200Z



...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF

THE PACIFIC NORTHWEST AND FAR EASTERN NORTH CAROLINA...



...SUMMARY...

Isolated severe wind gusts and hail may occur with thunderstorms

from eastern Oregon to western Montana this evening. A few strong

wind gusts may also occur in far eastern North Carolina.



...Pacific Northwest/Northern Rockies...

The latest water vapor imagery shows an anticyclonic flow pattern

over much of the western and central U.S. A shortwave trough is

appears to be moving through the Pacific Northwest. Scattered

thunderstorms are ongoing ahead of the shortwave from eastern Oregon

into southern Idaho. These storms will move northeastward across the

Pacific Northwest and into the northern Rockies this evening. The

RAP shows a pocket of maximized instability across central and

northern Idaho, where MLCAPE is estimated to be near 500 J/kg.

Within this area, moderate deep-layer shear is also analyzed, with

700-500 mb lapse rates in the 8.5 to 9.5 C/km range. This

environment should support an isolated wind-damage and hail threat

this evening.



...Far Eastern North Carolina...

An upper-level trough, evident on water vapor imagery, is currently

moving through the Carolinas. Ahead of the trough, a pocket of weak

instability is located near the coast of North Carolina, where a

line of thunderstorms is currently ongoing. This line will move

eastward across the Cape Hatteras over the next hour, where isolated

strong to severe wind gusts will be possible. The threat is expected

to move offshore after 02z.



..Broyles.. 04/13/2024



$$