ACUS11 KWNS 291054
SWOMCD
SPC MCD 291054=20
IAZ000-291300-

Mesoscale Discussion 0958
NWS Storm Prediction Center Norman OK
0554 AM CDT Sun May 29 2022

Areas affected...Western/Central IA

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

Valid 291054Z - 291300Z

Probability of Watch Issuance...40 percent

SUMMARY...Isolated large hail possible over the next few hours.

DISCUSSION...Showers and thunderstorms have increased in coverage
and intensity over the past hour or so across western and central
IA. This trend will likely continue for the next few hours as the
low-level jet and associated warm-air advection persist. A
predominantly multicellular storm mode is anticipated, but steep
mid-level lapse could still result in a few updrafts strong enough
to produce hail. Overall severe coverage is uncertain, meriting
lower watch probability, and convective trends will be monitored
closely.

..Mosier/Edwards.. 05/29/2022

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5dqfqxSe252aki5XyCDLtVdhPvxmS1XYJJMssC-oBqT73OdgGZo2nEcvWa96hWHwpq0_f3UwU= adImXG3QlSzj2dUupM$ for graphic product...

ATTN...WFO...DMX...FSD...OAX...

LAT...LON 42449569 43089551 43369472 43359400 42989326 42109309
41579329 40999384 40839469 41069523 41629549 42449569=20


=3D =3D =3D
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ACUS11 KWNS 091856
SWOMCD
SPC MCD 091855=20
NEZ000-KSZ000-092100-

Mesoscale Discussion 0958
NWS Storm Prediction Center Norman OK
0155 PM CDT Fri Jun 09 2023

Areas affected...Central NE...Northwest/North-Central KS

Concerning...Severe potential...Watch unlikely=20

Valid 091855Z - 092100Z

Probability of Watch Issuance...20 percent

SUMMARY...Thunderstorm coverage is expected to increase this
afternoon across central NE and northwest/north-central KS. Isolated
large hail and damaging gusts are possible with these storms.
Limited overall severe coverage is expected to preclude watch
issuance.

DISCUSSION...Thunderstorms have developed over northwest KS, in the
vicinity of a remnant MCV drifting gradually eastward. Additional
storms have developed farther northeast into north-central NE, along
a southwestward-progressing outflow boundary. Another cluster of
storms appears to be developing in the vicinity of the surface low
over central NE. Continued mesoscale forcing for ascent from each of
these mechanisms is expected to result in increased thunderstorm
coverage this afternoon. The airmass is moderately buoyant but
weakly sheared, which is expected to result in a predominantly
multicellular mode. Even so, the moderate buoyancy will still result
in robust updrafts, with some storms capable of isolated large hail
and strong downdrafts. Lone supercell over Wheeler County NE appears
to be significantly overachieving given the environment, giving
additional credence to the potential for more severe thunderstorms
this afternoon. However, given the overall environment, the severe
coverage is currently expected to remain isolated, likely precluding
the need for a watch.

..Mosier/Thompson.. 06/09/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!67YKOsk0DPgMHItcFPmqXVMvICJObXgdOQc6GoM9dXhma3ofCSQrG4RFKaAF1hRhJCM-AC31B= 0jok3-zGT4Oc-qKZ7I$ for graphic product...

ATTN...WFO...OAX...GID...LBF...DDC...GLD...

LAT...LON 38930183 40230080 41850006 42399862 41399775 39439885
38540008 38930183=20


=3D =3D =3D
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ACUS11 KWNS 091907
SWOMCD
SPC MCD 091906 COR
NEZ000-KSZ000-092100-

Mesoscale Discussion 0958
NWS Storm Prediction Center Norman OK
0206 PM CDT Fri Jun 09 2023

Areas affected...Central NE...Northwest/North-Central KS

Concerning...Severe potential...Watch unlikely=20

Valid 091906Z - 092100Z

CORRECTED FOR ERROR IN GRAPHIC LABEL

Probability of Watch Issuance...20 percent

SUMMARY...Thunderstorm coverage is expected to increase this
afternoon across central NE and northwest/north-central KS. Isolated
large hail and damaging gusts are possible with these storms.
Limited overall severe coverage is expected to preclude watch
issuance.

DISCUSSION...Thunderstorms have developed over northwest KS, in the
vicinity of a remnant MCV drifting gradually eastward. Additional
storms have developed farther northeast into north-central NE, along
a southwestward-progressing outflow boundary. Another cluster of
storms appears to be developing in the vicinity of the surface low
over central NE. Continued mesoscale forcing for ascent from each of
these mechanisms is expected to result in increased thunderstorm
coverage this afternoon. The airmass is moderately buoyant but
weakly sheared, which is expected to result in a predominantly
multicellular mode. Even so, the moderate buoyancy will still result
in robust updrafts, with some storms capable of isolated large hail
and strong downdrafts. Lone supercell over Wheeler County NE appears
to be significantly overachieving given the environment, giving
additional credence to the potential for more severe thunderstorms
this afternoon. However, given the overall environment, the severe
coverage is currently expected to remain isolated, likely precluding
the need for a watch.

..Mosier/Thompson.. 06/09/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5rUE8kAq25c_DC82iPZ1nA6csa_Tj3CYAGvzYo834q9d00WpHplbmxdw1mJ0-WH-G18lrz66_= A8LRkz0mxTgCW9sYLQ$ for graphic product...

ATTN...WFO...OAX...GID...LBF...DDC...GLD...

LAT...LON 38930183 40230080 41850006 42399862 41399775 39439885
38540008 38930183=20


=3D =3D =3D
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