Severe Storm Outlook Narrative (AC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 
000
ACUS11 KWNS 101228
SWOMCD
SPC MCD 101227
MAZ000-RIZ000-CTZ000-NYZ000-NJZ000-PAZ000-DEZ000-MDZ000-VAZ000-DCZ000-101730-

MESOSCALE DISCUSSION 0115
NWS STORM PREDICTION CENTER NORMAN OK
0627 AM CST WED FEB 10 2010

AREAS AFFECTED...MD...DE...SERN PA...NJ...CT...RI

CONCERNING...HEAVY SNOW

VALID 101227Z - 101730Z

HEAVY SNOW WILL DEVELOP ALONG THE I-95 CORRIDOR WITH SNOW RATES OF
1-2" COMMON BY MID-LATE MORNING.

WELL DEFINED MID LEVEL CIRCULATION IS MOVING ESEWD ACROSS WV AND IS
CURRENTLY AIDING IN THE DEEPENING OF ATTENDANT SFC LOW JUST EAST OF
SBY...OFF THE DE/MD COAST.  SNOW/RAIN LINE WILL GRADUALLY SHIFT EAST
ACROSS DE/CNTRL-SRN NJ...LIKELY EXTENDING ALONG THE SERN-MOST TIP OF
NJ BY 16Z AS RAPID DEEPENING AND SLIGHT EWD MOVEMENT TRANSPIRES THIS
MORNING.  LATEST RUC MODEL GUIDANCE...AND OBSERVATIONAL
DATA...SUGGEST RAPID STEEPENING OF MID LEVEL LAPSE RATES WILL
ENCOURAGE ELEVATED CONVECTION FROM MD...NEWD INTO SRN NEW
ENGLAND...ESPECIALLY ALONG THE I-95 CORRIDOR.  ALTHOUGH LIGHTNING
MAY NOT BE OBSERVED INLAND...SNOW RATES OF 1-2" PER HOUR COULD
BECOME COMMON WITHIN THE STRONGER CONVECTION OVER THE NEXT FEW
HOURS.  IN ADDITION...TIGHTENING PRESSURE GRADIENT WILL RESULT IN
INCREASING SFC WINDS WHICH WILL RESULT IN CONSIDERABLE
BLOWING/DRIFTING AND REDUCTION OF VISIBILITIES.

..DARROW.. 02/10/2010

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

...NOTICE...
SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.

ATTN...WFO...BOX...OKX...ALY...PHI...BGM...AKQ...CTP...LWX...

LAT...LON   39137743 40587750 41307623 42077267 41937134 41177139
            40757239 40027406 38317477 38117664 39137743
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.