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ACUS11 KWNS 121841
SWOMCD
SPC MCD 121841=20
NDZ000-122345-

Mesoscale Discussion 0455
NWS Storm Prediction Center Norman OK
0141 PM CDT Tue Apr 12 2022

Areas affected...portions of ND

Concerning...Blizzard=20

Valid 121841Z - 122345Z

SUMMARY...Blizzard conditions will continue across much of North
Dakota into this evening. Heavy snow bands may produce rates as high
as 2-3 inches per hour at times.

DISCUSSION...Blizzard conditions will continue across western ND and
have spread eastward this afternoon into portions of central/eastern
ND. Moderate to heavy snow has been widespread and is occurring
within a zone of intense warm advection and frontogenesis around 700
mb. Persistent ascent through a deep (greater than 1200 m) dendritic
growth zone will support snowfall rates around 2-3 inches per hour
within heavy snow bands embedded within the broader precipitation
area. An intense surface pressure gradient across ND/SD associated
with a deepening surface low over NE also continue to support
northeasterly surface winds around 20-30 mph with higher gusts,
resulting in blizzard conditions and extremely poor visibility.
These conditions should persist into this evening.

..Leitman.. 04/12/2022

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!szZDlEgQ_ix4B1TMruMrWOVDIPrm34Gku562Yl8AxAWoIt5izkN7dQ52TATSNbVKpQh9oz_V$=
for graphic product...

ATTN...WFO...FGF...BIS...

LAT...LON 46470033 46140177 46060218 46020270 46030299 46230350
46520377 46780388 47100381 47480355 47770285 48160174
48270111 48389983 48459892 48339796 48049746 47909738
47479736 47299737 47149755 46869854 46470033=20



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ACUS11 KWNS 041753
SWOMCD
SPC MCD 041753=20
INZ000-ILZ000-WIZ000-041900-

Mesoscale Discussion 0455
NWS Storm Prediction Center Norman OK
1253 PM CDT Tue Apr 04 2023

Areas affected...northeast IL into extreme southeast WI

Concerning...Severe Thunderstorm Watch 114...

Valid 041753Z - 041900Z

The severe weather threat for Severe Thunderstorm Watch 114
continues.

SUMMARY...Isolated large hail and locally damaging gusts may persist
another 1-2 hours.

DISCUSSION...A cluster of storms over northern IL has shown signs of
weakening over the past 30 minutes or so. MRMS MESH, along with 7 km
CAPPI indicate a general weakening trend. However, given around 1000
J/kg MUCAPE and favorable effective shear, some continued storm
organization may persist over the next 1-2 hours as the cluster
shifts northeast toward southwest Lake Michigan. With northward
extent, instability and shear become somewhat less favorable, and
storm motion will likely result in ongoing storms outpacing
northward advancing low-level moisture return. While some risk for
large hail and locally damaging gusts may persist another 1-2 hours,
the overall expectation is for storms to gradually weaken and a
downstream watch is not expected at this time.

..Leitman.. 04/04/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8xHXDWV4DvHXqhWH6rDvgSkY53dN5yeRX93mEjEJ2dCYMkGXAY3wxb905dcvvy791a_XAy5ty= l_7LFE7y3TBKXsaTlY$ for graphic product...

ATTN...WFO...LOT...MKX...

LAT...LON 42218922 42578859 42738808 42758771 42678744 42148718
41778720 41568771 41518851 41558895 41728915 41988920
42218922=20


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ACUS11 KWNS 160919
SWOMCD
SPC MCD 160918=20
KSZ000-161015-

Mesoscale Discussion 0455
NWS Storm Prediction Center Norman OK
0418 AM CDT Tue Apr 16 2024

Areas affected...Eastern KS

Concerning...Severe potential...Watch possible=20

Valid 160918Z - 161015Z

Probability of Watch Issuance...60 percent

SUMMARY...A couple severe storms may develop across eastern KS
through sunrise with all hazards possible.

DISCUSSION...A swath of initially elevated convection has persisted
across eastern KS. One cell over southwest Greenwood county appears
to have finally acquired supercell character over the past 30
minutes and may mark the transition to a realized severe threat into
sunrise. Additional candidate storms to its west and northwest will
have potential as well to become supercells or at least organized
clusters as convection advances northeast this morning. The overall
threat should remain spatially isolated. The tornado threat will be
limited towards the MO border given less-quality boundary-layer
moisture with eastern extent.

..Grams/Gleason.. 04/16/2024

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-Q3x8U8pj--Hu3rXLM0Zt1jLhe2zdl7rnnzazOym9lClAsAJOsX3pI3jsOFfJAAxHip2oOizX= dnKOhfDDn7eObFdMgA$ for graphic product...

ATTN...WFO...SGF...EAX...TOP...ICT...

LAT...LON 39599587 39589537 39019498 38279485 37679486 37319502
37329571 37409688 37689707 39309731 39539663 39599587=20


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