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LU9DCE > ALERT 03.09.21 14:43z 92 Lines 3890 Bytes #999 (0) @ WW
BID : 4716_LU9DCE
Read: GUEST
Subj: STORM PREDICTION CENTER 03-SEP.21
Path: HB9ON<IW8PGT<IZ3LSV<DB0ERF<DK0WUE<PE1RRR<KA1VSC<LU9DCE
Sent: 210903/1430Z 4716@LU9DCE.TOR.BA.ARG.SOAM BPQ6.0.22
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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
BOLETINES INFORMATIVOS PROGRAMADOS (BIP)
Copyright 2021 Eduardo A. Castillo
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Storm Prediction Center
en-us
None
Fri, 03 Sep 2021 03:21:01 +0000
Fri, 03 Sep 2021 03:21:01 +0000
general
1
No watches are valid as of Fri Sep3 03:21:01 UTC 2021.
Fri, 03 Sep 2021 03:20:12 +0000
MD 1689 CONCERNING TORNADO WATCH 487... FOR PORTIONS OF EASTERN KANSAS
Mesoscale Discussion 1689
NWS Storm Prediction Center Norman OK
0924 PM CDT Thu Sep 02 2021
Areas affected...Portions of eastern Kansas
Concerning...Tornado Watch 487...
Valid 030224Z - 030400Z
The severe weather threat for Tornado Watch 487 continues.
SUMMARY...A damaging gust or two remains possible over the next
couple of hours, particularly with a supercell across Lyon County,
KS.
DISCUSSION...Multiple semi-discrete storms/clusters are persisting
across portions of eastern Kansas amid adequate deep-layer ascent
and buoyancy (1000+ J/kg MLCAPE). While deep-layer (50+ kts) and
low-level shear (300 m2/s2 effective SRH) are present across the
warm sector, convective inhibition is increasing with the onset of
nocturnal cooling (i.e. temperatures dropping below 80F in several
locales). That being said, storms should remain organized (evident
via a sustained supercell structure across Lyon County, KS) for at
least a few more hours. However, increasing static stability within
the boundary-layer will diminish efficient downward momentum
transport, limiting damaging gust potential to the most robust storm
updrafts, with the greatest potential for severe associated with the
Lyon County supercell. Otherwise, an overall decrease in severe
potential is expected overnight as the boundary layer further
stabilizes.
..Squitieri/Guyer.. 09/03/2021
ATTN...WFO...TOP...ICT...
LAT...LON38219754 39079720 39349664 39239604 38879560 38409562
38169595 38049671 38089706 38219754
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Fri, 03 Sep 2021 02:25:03 +0000
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Thu Sep 02 2021
Valid 030100Z - 031200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR SMALL PARTS OF
NORTHEAST KS AND CENTRAL NE...
...SUMMARY...
Isolated severe thunderstorms remain possible this evening, with a
threat of locally damaging wind and a brief tornado.
...Central Plains...
Occasional rotating storms have been noted across portions of
Nebraska and Kansas early this evening, though convection has
struggled to maintain severe intensity. Veering wind profiles noted
on the 00Z OAX/TOP soundings and recent KUEX VWP will continue to
support some rotation with the strongest storms into mid evening,
though very warm temperatures aloft and weak midlevel lapse rates
will continue to dampen storm intensity. Locally damaging wind and a
brief tornado or two remain possible in the short term before the
threat begins to substantially wane later tonight. See MCD 1686 and
1687 for more information on the threat in this area.
...Northern UT...Southeast ID...WY...
Clusters of thunderstorms will continue this evening from near Salt
Lake City northeastward into parts of WY. MUCAPE 500-1000 J/kg and
effective shear of 25-30 kt (as noted on the 00Z SLC sounding) will
continue to favor some storm organization, with locally damaging
wind gusts and perhaps some hail possible into mid/late evening.
..Dean.. 09/03/2021
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Fri, 03 Sep 2021 01:10:00 +0000
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