SPC MD 1535
SPC MD 1535
[html]MD 1535 CONCERNING SEVERE THUNDERSTORM WATCH 479... FOR NEW ENGLAND
Mesoscale Discussion 1535
NWS Storm Prediction Center Norman OK
0107 PM CDT Thu Jul 21 2022
Areas affected...New England
Concerning...Severe Thunderstorm Watch 479...
Valid 211807Z - 212000Z
The severe weather threat for Severe Thunderstorm Watch 479
continues.
SUMMARY...Wind damage and an isolated tornado threat will continue
across the western and central parts of WW 479 this afternoon. The
severe threat is expected to move eastward into parts of Maine over
the next few hours.
DISCUSSION...The latest mosaic imagery shows a cluster of strong to
severe storms from northern New York extending eastward and
southward across western New England. The strongest storms are
located in west-central New England along an axis of moderate
instability, with the RAP analyzing MLCAPE in the 2000 to 2500 J/kg.
Amid the larger cluster, a well-developed supercell is ongoing in
western New Hampshire. The instability co*bined with 0-6 km shear in
the 40 to 50 knot range according to the RAP, will continue to
support supercell development. Supercells should be capable of wind
damage and perhaps a brief tornado or two. However, the latest HRRR
suggests that convective coverage will continue to rapidly increase.
This will favor linear development along the instability axis. This
line is expected to beco*e increasing organized and move into
western Maine within a few hours. The stronger parts of the line are
expected to be associated with wind damage.
..Broyles.. 07/21/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CAR...GYX...BOX...BTV...OKX...ALY...
LAT...LON 42547167 42867111 43187024 43546952 43896917 44356886
45136890 45846905 46116944 45977013 45407099 44977203
44607285 43967344 43427360 42807364 42067365 41657365
41447342 41437291 41817244 41987229 42247207 42547167
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Source: SPC MD 1535 (http://ht**://www.spc.noaa.gov/products/md/md1535.html)