ZCZC SPCSWOMCD ALL
ACUS11 KWNS 041927 
SPC MCD 041927 
MEZ000-MAZ000-NHZ000-RIZ000-CTZ000-VTZ000-NYZ000-NJZ000-PAZ000-042100-

Mesoscale Discussion 1925
NWS Storm Prediction Center Norman OK
0227 PM CDT Wed Sep 04 2019

Areas affected...Southeast NY...Southern VT/NH...Far southwest
ME...CT...MA...RI...Northern NJ...Far Northeast PA

Concerning...Severe Thunderstorm Watch 634...

Valid 041927Z - 042100Z

The severe weather threat for Severe Thunderstorm Watch 634
continues.

SUMMARY...Threat for damaging wind gusts continues across much of
Severe Thunderstorm Watch 634.

DISCUSSION...Cold front continues to progress eastward across the
Northeast and recent surface analysis places the boundary from
north-central VT southwestward to just east of ALB to CXY (in
southeast PA). Northern portion of the line of thunderstorms
initially along the front has accelerated slightly ahead of it while
also losing intensity. This loss of intensity is likely tied reduced
lift away from the front and less buoyancy from lower surface
temperatures. Warm layer noted around 500-600 mb on the 18Z ALB
sounding could also be contributing to reduced updraft strength.

Southern portion of this line of has maintained its intensity and is
moving into a slightly more favorable thermodynamic environment.
Expectation is for this portion of the line to continue eastward,
posing a risk for damaging wind gusts. Additional development is
also possible farther south along the front across far northeast PA
and northern NJ. These storms will also pose a risk for damaging
wind gusts. A low tornado threat remains, but surface winds have
been veering westerly well ahead of the front, further reducing any
tornado potential.

..Mosier.. 09/04/2019

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...GYX...BOX...BTV...OKX...ALY...PHI...BGM...

LAT...LON   43647336 44017283 44137254 44257206 44267170 44207084
            43937027 43587013 41967109 40577250 40367450 40817570
            42497403 43647336 

NNNN