SPC Sep 9, 2019 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0754 PM CDT Sun Sep 08 2019

Valid 090100Z - 091200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
EASTERN COLORADO AND ADJACENT SOUTHEAST WYOMING AND THE NEBRASKA
PANHANDLE...

...SUMMARY...
Strong/locally severe thunderstorms -- capable of producing a few
instances of strong/gusty winds and hail -- will continue this
evening across parts of the central Rockies and adjacent High Plains
this evening.

...Central high Plains area...
While a strong gust or two may still occur across portions of
northwestern Colorado/southern Wyoming, somewhat greater severe risk
will persist across the high Plains of eastern Colorado, where
locally more intense storms are ongoing.  One small/bowing cluster
of storms has moved northeastward through the Denver metro area,
while another cluster of stronger storms is ongoing farther to the
southeast.

With ample instability (500 to 1500 J/kg mixed-layer CAPE), and a
strengthening southerly low-level jet beneath mid-level westerly
winds forecast to increase with time, severe threat should continue
locally this evening, and may possibly linger into the overnight
hours.  Greatest risk however should be confined to the next couple
of hours, owing to the onset of diurnal cooling/stabilization of the
boundary layer.

For additional short-term information, please refer to SWOMCD #1940.

..Goss.. 09/09/2019

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from SPC Forecast Products http://www.spc.noaa.gov/products/outlook/day1otlk_0100.html