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Mesoscale Discussion 1697 |
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Mesoscale Discussion 1697
NWS Storm Prediction Center Norman OK
0947 AM CDT Mon Sep 06 2021
Areas affected...Northern New York into Vermont
Concerning...Severe potential...Watch unlikely
Valid 061447Z - 061645Z
Probability of Watch Issuance...20 percent
SUMMARY...Fast moving storms may produce convectively-enhanced
damaging winds and small hail. No watch is expected.
DISCUSSION...A line of thunderstorms was moving around 35-40 kts to
the north-northeast off of Lake Ontario. A convective gust of 41 kts
was recorded at KFZY within the last hour. Other New York Mesonet
sites were showing gusts around 25-30 kts in the same vicinity.
Despite limited buoyancy and some cloud cover ahead of this activity
so far, a few of these stronger gusts are possible given the line's
speed. Continued cooling aloft and modest heating in cloud free
areas should allow some intensification of the line into the
afternoon. Based on observed regional and model forecast soundings,
the most intense storm activity will likely occur where surface
temperatures can reach the low/mid 70s F. Strong flow in the low
levels will mean damaging winds will be the primary threat. Small
hail may also occur given how cold it is aloft. Coverage of severe
storms should be limited lack of boundary-layer destabilization. No
watch is expected.
..Wendt/Hart.. 09/06/2021
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BTV...ALY...BGM...BUF...
LAT...LON 44567571 45027475 45027274 44757202 44217208 43587255
43197304 43007491 43067607 43447624 44567571
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