SPC AC 240709
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0209 AM CDT MON MAY 24 2010
VALID 261200Z - 271200Z
...SYNOPSIS...
MODELS INDICATE THAT THE LARGE-SCALE UPPER FLOW WILL REMAIN BLOCKY
THROUGH THIS FORECAST PERIOD. THE CENTER OF ONE LARGE...DEEP
MID-LEVEL LOW MAY CONTINUE TO REDEVELOP SOUTHWESTWARD INTO THE
CANADIAN MARITIMES...WHILE ANOTHER DEVELOPS SOUTHEASTWARD TOWARD THE
NORTHERN/CENTRAL CALIFORNIA COAST. ANOTHER WEAKER CYCLONIC
CIRCULATION CENTER IS PROGGED TO STALL OFF THE SOUTH ATLANTIC
SEABOARD...BEFORE BEGINNING TO SLOWLY MIGRATE BACK TO THE EAST.
WHILE ONE UPPER HIGH CENTER REMAINS STRONG OVER NORTHWEST CANADA
...THE LOWER GREAT LAKES RIDGE APPEARS LIKELY TO FINALLY WEAKEN...
AS A SIGNIFICANT SHORT WAVE IMPULSE IS FORCED EASTWARD ACROSS
MANITOBA AND NORTHERN/WESTERN ONTARIO. BUT GUIDANCE SUGGESTS THAT A
NEW HIGH CENTER MAY ATTEMPT TO FORM OVER THE CENTRAL PLAINS.
WHILE A STRONG CYCLONIC MID/UPPER JET NOSING AROUND THE EASTERN
PACIFIC LOW MAY CONTRIBUTE TO STRENGTHENING DEEP LAYER FLOW AND
SHEAR ACROSS MUCH OF THE INTERMOUNTAIN WEST...WHERE RELATIVELY LOW
MOISTURE LEVELS ARE EXPECTED TO RESULT IN LIMITED POTENTIAL FOR
DESTABILIZATION...FLOW FIELDS EAST OF THE ROCKIES APPEAR LIKELY TO
REMAIN GENERALLY WEAK. MODEST DESTABILIZATION DRIVEN PRIMARILY BY
DAYTIME HEATING MAY CONTRIBUTE TO SCATTERED AREAS OF THUNDERSTORM
ACTIVITY. BUT...SEVERE POTENTIAL FOR WEDNESDAY REMAINS UNCLEAR...
IF IT IS NOT NEARLY NEGLIGIBLE.
..KERR.. 05/24/2010
CLICK TO GET WUUS03 PTSDY3 PRODUCT
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z
|
