Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS02 KWNS 250631
SWODY2
SPC AC 250630

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1230 AM CST SUN JAN 25 2015

VALID 261200Z - 271200Z

...NO TSTM AREAS FORECAST...

...SUMMARY...
THE RISK FOR THUNDERSTORMS APPEARS NEGLIGIBLE ON MONDAY AND MONDAY
NIGHT.

...SYNOPSIS...
A SHORTWAVE TROUGH WILL EXIT THE S ATLANTIC COAST MON MORNING
WHILE AN UPSTREAM IMPULSE RAPIDLY PROGRESSES FROM THE UPPER MS
VALLEY TOWARDS THE SRN APPALACHIANS. THIS WILL EFFECTIVELY YIELD A
BROAD UPPER TROUGH OVER THE EAST...AS A HIGHLY AMPLIFIED RIDGE
BECOMES CENTERED FROM THE SRN HIGH PLAINS TO THE NORTHWEST. CLOSED
MID-LEVEL LOW W OF BAJA CA SHOULD SLOWLY FILL AS IT APPROACHES THE
SRN CA COAST MON NIGHT.

...DISCUSSION...
SOME MODIFICATION TO THE CONTINENTAL AIR MASS OVER THE NRN GULF
/CURRENTLY CHARACTERIZED BY 40S SURFACE DEW POINTS/ WILL OCCUR IN
ASSOCIATION WITH THE LEAD SHORTWAVE TROUGH SHIFTING OFF THE S
ATLANTIC COAST. ALTHOUGH SHOWERS ARE POSSIBLE OVER LAND...SUFFICIENT
BUOYANCY FOR TSTMS SHOULD BE CONFINED TO THE GULF STREAM. IN THE
SOUTHWEST...MID-LEVEL LAPSE RATES WILL STEEPEN ACROSS SRN CA MON
NIGHT JUST AHEAD OF THE MID-LEVEL LOW. HOWEVER...BUOYANCY SHOULD
REMAIN MINIMAL WITH MUCAPE AOB 100 J/KG...PRECLUDING TSTM
PROBABILITIES AOA 10 PERCENT.

..GRAMS.. 01/25/2015



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