Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 231627
SWODY1
SPC AC 231625

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1125 AM CDT THU OCT 23 2014

VALID 231630Z - 241200Z

...NO SVR TSTM AREAS FORECAST...

...SUMMARY...
LOW CHANCES FOR ISOLATED THUNDERSTORMS ARE FORECAST ACROSS THE
PACIFIC NORTHWEST...FAR SOUTH FLORIDA...AND PARTS OF COASTAL NEW
ENGLAND.  SEVERE WEATHER IS NOT EXPECTED.

...SYNOPSIS...
A LARGE DEEP-LAYER CYCLONE POSITIONED OFF THE SRN COAST OF NEW
ENGLAND WILL CONTINUE TO DRIFT NEWD TODAY. DECAYING CONVECTION
ASSOCIATED WITH AN ELONGATED SHORTWAVE UPPER TROUGH OVER THE CENTRAL
CONUS WILL ENCOUNTER A PROGRESSIVELY MORE STABLE AIR MASS TO THE E.
FARTHER W...A BELT OF STRONG W-SWLY MID/UPPER-LEVEL FLOW WILL BE
POSITIONED OVER THE PAC NW...WITH A SERIES OF WEAK VORT MAXIMA
QUICKLY PROGRESSING EWD FROM THE PACIFIC TOWARDS THE NRN ROCKIES.

...PACIFIC NW INTO THE NRN INTER-MOUNTAIN WEST...
SHOWERS WITH EMBEDDED CONVECTION/LIGHTNING STRIKES WILL BE POSSIBLE
PRIMARILY THROUGH LATE TONIGHT AS A WEAK UPPER IMPULSE TRAVERSES
NEWD. ANEMIC INSTABILITY AND NEBULOUS FORCING FOR ASCENT IS EXPECTED
TO RESULT IN ONLY VERY ISOLATED TSTM COVERAGE.

...COASTAL NEW ENGLAND...
SPORADIC LIGHTNING STRIKES HAVE BEEN OBSERVED NEAR COASTAL MAINE
THIS MORNING WITHIN THE NRN SEMI-CIRCLE OF AN OFFSHORE CYCLONE. THIS
THREAT WILL LIKELY PERSIST THROUGH THIS EVENING...BUT INCREASINGLY
BECOME FOCUSED OFFSHORE OVERNIGHT AS THE CYCLONE TRACKS NEWD.

...S FL...
ISOLATED TSTMS WILL BE POSSIBLE THROUGH EARLY FRI MORNING NEAR A
STALLED OFFSHORE FRONT.

..ROGERS/HART.. 10/23/2014




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