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| Mesoscale Discussion 1732 |
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Mesoscale Discussion 1732
NWS Storm Prediction Center Norman OK
1248 PM CDT Sat Oct 10 2020
Areas affected...Northern New York and Vermont
Concerning...Severe potential...Watch possible
Valid 101748Z - 101915Z
Probability of Watch Issuance...60 percent
SUMMARY...Storm coverage is expected to increase through the
afternoon with primarily a damaging wind threat. A severe
thunderstorm watch is possible.
DISCUSSION...Storms have started to develop along and ahead of a
cold front in eastern Ontario. These storms are expected to increase
in coverage an intensity over the next 1 to 2 hours. Instability is
not that strong at this time as surface temperatures are only near
70 degrees with dewpoints in the mid 50s. However, moisture
advection from the southwest, cooling temperatures aloft, and
additional heating ahead of these storms should lead to continued
destabilization through the afternoon. As MLCAPE increases to around
1000 J/kg, expect storm intensity to also increase. A very strong
wind field (>50 kts less than 1km above the surface per RAP
soundings) will support a damaging wind threat with any storms which
develop. This will be especially likely with any linear/bowing
segments. Expect this storm activity to be strongly diurnally driven
with the threat decreasing considerably by mid/late evening.
..Bentley/Thompson.. 10/10/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GYX...BTV...ALY...BGM...BUF...
LAT...LON 44517599 44937520 45057464 45037312 45057256 45027193
44267205 43597241 43507342 43467433 43467530 43547625
43817635 44087635 44517599
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