Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 250035
SWODY1
SPC AC 250034

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0734 PM CDT SUN JUL 24 2016

VALID 250100Z - 251200Z

...THERE IS A SLGT RISK OF SVR TSTMS OVER THE MIDWEST...

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE CENTRAL HIGH
PLAINS...

...THERE IS A MRGL RISK OF SVR TSTMS FROM LOWER MI TO ERN CO...

...SUMMARY...
SCATTERED SEVERE THUNDERSTORMS WILL LINGER INTO THE EVENING HOURS
ACROSS THE CENTRAL HIGH PLAINS.  ISOLATED SEVERE THUNDERSTORMS
REMAIN POSSIBLE ALONG A NARROW CORRIDOR FROM NORTHWESTERN INDIANA
INTO WEST CENTRAL ILLINOIS.

...DISCUSSION..

BOUNDARY-LAYER COOLING WILL GREATLY LEAD TO WEAKENING TSTM ACTIVITY
ACROSS MOST OF THE CONUS.  THERE ARE TWO MAIN AREAS WHERE STRONG
CONVECTION MAY LINGER FOR THE NEXT SEVERAL HOURS.

1.  MIDWEST.  A NARROW CORRIDOR OF DEEP CONVECTION HAS EVOLVED FROM
SRN LAKE MICHIGAN...SWWD INTO WCNTRL IL.  THIS ACTIVITY HAS MATURED
ALONG SRN FRINGE OF GREAT LAKES SHORT-WAVE TROUGH.  WRN FLANK OF
THIS ACTIVITY MAY BE ENHANCED LATER THIS EVENING BY A REMNANT MCV
THAT IS TRACKING EAST ALONG THE IA/MO BORDER.  STRONG TO PERHAPS
ISOLATED SEVERE TSTMS ARE EXPECTED TO FOCUS FROM THIS REMNANT
CONVECTIVE FEATURE DOWNSTREAM INTO NWRN INDIANA.  GUSTY WINDS ARE
THE PRIMARY THREAT.

2.  CENTRAL HIGH PLAINS.  MODESTLY SHEARED CONVECTION THAT DEVELOPED
OFF THE HIGH TERRAIN OF SERN WY/FRONT RANGE OF CO HAS PROPAGATED
SEWD INTO THE HIGH PLAINS.  SOME OF THE STRONGER UPDRAFTS MAY
BRIEFLY EXHIBIT ROTATION AND HAIL AND GUSTY WINDS ARE THE MAIN
THREATS AS THIS ACTIVITY SPREADS INTO WRN KS.

..DARROW.. 07/25/2016

$$


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