Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 232035
SWOMCD
SPC MCD 232035
IDZ000-MTZ000-ORZ000-WAZ000-232130-

MESOSCALE DISCUSSION 1447
NWS STORM PREDICTION CENTER NORMAN OK
0335 PM CDT WED JUL 23 2014

AREAS AFFECTED...NERN ORE...ERN WA...NRN ID...FAR WRN MT

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 232035Z - 232130Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...THE POTENTIAL FOR ISOLATED DMGG WIND GUSTS AND LARGE HAIL
WILL INCREASE ACROSS PARTS OF THE INTERIOR PAC NW AND NRN ROCKIES
THIS AFTERNOON. TRENDS WILL BE MONITORED FOR A POSSIBLE WW.

DISCUSSION...VISIBLE SATELLITE IMAGERY SHOWS INCREASINGLY AGITATED
CU FIELD ACROSS N-CNTRL ORE AND SERN WA...POSITIONED ALONG THE ERN
FRINGE OF WIDESPREAD CLOUD COVER ASSOCIATED WITH A WARM CONVEYOR
REGION OF AN OFFSHORE CYCLONE. AMPLE DIURNAL HEATING AMIDST RICH
LOW-LEVEL MOISTURE /CHARACTERIZED BY MID-UPPER 50S F DEWPOINTS/ WILL
AID IN FURTHER DESTABILIZATION THROUGH THE AFTERNOON...WITH MLCAPE
VALUES FORECAST TO REACH 500 TO PERHAPS 1000 J/KG PER MODIFIED 18Z
OTX SOUNDING. ANOMALOUSLY STRONG MIDLEVEL SLY FLOW WILL BE MORE THAN
SUFFICIENT FOR ORGANIZED STORMS...AND FAST STORM MOTIONS...WHICH
COULD SUPPORT A LOCALLY ENHANCED THREAT FOR STRONG-SVR WIND GUSTS
AND HAIL. COVERAGE WILL INCREASE THROUGHOUT THE AFTERNOON AS
STRONGER MIDLEVEL HEIGHT FALLS/FORCING FOR ASCENT SPREADS EWD IN
CONJUNCTION WITH THE UPPER LOW. TRENDS WILL BE MONITORED FOR A
POSSIBLE WW FOR LATER THIS AFTERNOON.

..ROGERS/HART.. 07/23/2014

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...MSO...BOI...OTX...PDT...

LAT...LON   48621745 48781603 48411510 47251430 45701419 45081496
            44731805 44561888 45331934 47911892 48051874 48621745



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