Severe Storm Outlook Narrative (AC)
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ACUS03 KWNS 210526
SPC AC 210525

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
1225 AM CDT Wed Mar 21 2018

Valid 231200Z - 241200Z


A few general thunderstorms are expected Friday night from eastern
Nebraska across Missouri and into parts of Illinois.

A low-amplitude shortwave trough is forecast to move from the Four
Corners states toward the lower MO Valley through the period, with a
surface low moving from KS into MO during the evening. A plume of
50s F to near 60 F dewpoints will spread northward toward the low,
and up to a warm front which will be close to I-70 from eastern KS
into MO. Strong low-level warm advection will result in lift north
of the warm front, with scattered thunderstorms mainly Friday night
from eastern NE across MO and into parts of IL. Small hail is
possible with some of these storms, but the severe threat appears
low at this time.

Elsewhere, a few weak storms are possible along the WA and OR coast
in association with an upper low just offshore.

..Jewell.. 03/21/2018

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