ACUS11 KWNS 140340
SWOMCD
SPC MCD 140340=20
NDZ000-MTZ000-140545-

Mesoscale Discussion 1478
NWS Storm Prediction Center Norman OK
1040 PM CDT Wed Jul 13 2022

Areas affected...northeast MT...far northwest ND

Concerning...Severe Thunderstorm Watch 468...

Valid 140340Z - 140545Z

The severe weather threat for Severe Thunderstorm Watch 468
continues.

SUMMARY...Severe gusts with the approaching bow will likely continue
through 05 UTC and may extend beyond severe thunderstorm watch 468
into far northwest ND. An additional severe thunderstorm watch to
address the small spatiotemporal scale of the threat is not
anticipated.

DISCUSSION...Radar mosaic shows a mature bow moving to the
east-northeast at 40 kt over northeast MT as of 0335 UTC. Further
cooling of the boundary layer and cooler temperatures near the MT/ND
border and into northwest ND (low 70s deg F) are contributing to
increasing convective inhibition with east extent. Nonetheless, the
steep 700-500 mb lapse rate (8.3 deg C/km) sampled by the Glasgow,
MT 00 UTC raob and the mature bow will favor at least some risk for
severe gusts to the edge of severe thunderstorm watch 468 and
perhaps beyond it. Instrument-measured gusts 60-70 mph have been
observed in the past hour with the bow. A gradual lessening of
severe-gust potential will probably occur over the next 1-3 hours.

..Smith.. 07/14/2022

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9wfVTUzotjiqniM4I9U24Xs9iW2mNtWioYT94JJ4sUxgiMpm9193ml8H6gpOo3JXnQGNxMt0s= KjE2K6otS_vjdJ43sg$ for graphic product...

ATTN...WFO...BIS...BYZ...GGW...

LAT...LON 47990645 48540586 49020482 48960353 48160328 47420357
46920473 46690561 47430541 47790557 47990575 47990645=20


=3D =3D =3D
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ACUS11 KWNS 091758
SWOMCD
SPC MCD 091757=20
NCZ000-VAZ000-091930-

Mesoscale Discussion 1478
NWS Storm Prediction Center Norman OK
1257 PM CDT Sun Jul 09 2023

Areas affected...Eastern North Carolina and southeast Virginia

Concerning...Severe Thunderstorm Watch 466...

Valid 091757Z - 091930Z

The severe weather threat for Severe Thunderstorm Watch 466
continues.

SUMMARY...A line of storms producing damaging winds will persist
through the afternoon.

DISCUSSION...A well-developed squall line across central North
Carolina continues east. Sporadic wind damage reports have been
received, but measured wind gusts have remained below 40 knots. This
is likely related to relatively warm cold pool temperatures within
the moist environment. Given the warm and moist downstream
environment (temperatures around 90F and mid-70s dewpoints), expect
this squall line to continue east through the afternoon. Sporadic
damaging wind gusts will remain possible with storm scale processes
and stronger downbursts likely responsible for more concentrated
areas of wind damage.

..Bentley.. 07/09/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!68fJfEVznLBLMWIq5PLJoB5qBs4l2GL6WNPFXyC6B_aWMWkYW7RQG1LmpQHvV5cbwdVP1eudB= Anr_7xaxMCgPb2kLsU$ for graphic product...

ATTN...WFO...AKQ...MHX...RAH...RNK...

LAT...LON 35007926 35287915 35567911 35797895 36117885 36427886
36637886 36957828 36987695 36777612 35817613 34907657
34717714 35007926=20


=3D =3D =3D
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