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LU9DCE > ALERT 22.05.21 15:33z 156 Lines 6050 Bytes #999 (0) @ WW
BID : 1090_LU9DCE
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Subj: STORM PREDICTION CENTER 22 05
Path: HB9ON<IW2OHX<IW0QNL<OK0NBR<OK2PEN<N3HYM<VE3CGR<LU9DCE
Sent: 210522/1530Z 1090@LU9DCE.TOR.BA.ARG.SOAM BPQ6.0.21
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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
BOLETINES INFORMATIVOS PROGRAMADOS (BIP)
Copyright 2021 Eduardo A. Castillo
+----------------------------------------------------------------------------+
Storm Prediction Center
en-us
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Sat, 22 May 2021 03:30:02 +0000
Sat, 22 May 2021 03:30:02 +0000
general
1
WW 192 SEVERE TSTM CO NE SD 212215Z - 220400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 192
NWS Storm Prediction Center Norman OK
415 PM MDT Fri May 21 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
northeast Colorado
western Nebraska
southern South Dakota
* Effective this Friday afternoon and evening from 415 PM until
1000 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Scattered storms developing over the central High Plains
this evening will become capable of producing large to very large
hail, downburst winds and a couple of tornadoes.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 65 miles northwest of
Valentine NE to 50 miles south southeast of Limon CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
20035.
...Dial
Read more
Sat, 22 May 2021 01:57:04 +0000
WW 0192 Status Updates
STATUS REPORT ON WW 192
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSE PHP
TO 40 E AIA TO 30 WNW AIA.
ATTN...WFO...GLD...BOU...LBF...CYS...UNR...
STATUS REPORT FOR WS 192
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-220440-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE
NEC161-220440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
SHERIDAN
SDC102-220440-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
OGLALA LAKOTA
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.PLEASE
Read more
Sat, 22 May 2021 03:30:04 +0000
MD 0698 CONCERNING SEVERE THUNDERSTORM WATCH 192... FOR NORTHWESTERN NEBRASKA/WESTERN SOUTH DAKOTA
Mesoscale Discussion 0698
NWS Storm Prediction Center Norman OK
1004 PM CDT Fri May 21 2021
Areas affected...Northwestern Nebraska/Western South Dakota
Concerning...Severe Thunderstorm Watch 192...
Valid 220304Z - 220430Z
The severe weather threat for Severe Thunderstorm Watch 192
continues.
SUMMARY...Large hail remains possible with the strongest convection,
especially from northwestern Nebraska into southwestern South
Dakota.
DISCUSSION...Surface front has crept south across the central High
Plains this evening with the leading edge of this notable density
current now stretching from Stanley County SD-Sheridan County
NE-just south of CYS. Over the last hour or so, the strongest
convection appears to be along the cool side of the boundary. With
LLJ expected to increase across NE into south-central SD, this trend
may continue, though near-surface based thunderstorms may also
develop along the frontal zone. Large hail, possible in excess of 1
inch at times, may occur with the strongest updrafts.
..Darrow.. 05/22/2021
ATTN...WFO...ABR...LBF...UNR...CYS...
LAT...LON42950400 45190142 44680074 42730233 42950400
Read more
Sat, 22 May 2021 03:05:03 +0000
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0804 PM CDT Fri May 21 2021
Valid 220100Z - 221200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
THE CENTRAL HIGH PLAINS...
...SUMMARY...
A few severe storms are expected across northeast Colorado and the
Nebraska Panhandle tonight. Large hail and gusty winds are the
primary risks.
Upper-level low pressure centered over NV early this evening remains
nearly stationary, with 40-50 kt southwesterly mid-level flow across
the central/southern High Plains. Isolated strong/occasionally
severe thunderstorms were in progress in the vicinity of a
slow-moving front across the NE Panhandle, and southward along a
surface trough/dryline extending southward into eastern NM. Refer to
MCD 697 for the latest short-term details for Severe Thunderstorm
Watch 192. Weak/pockets of moderate surface-based instability and
convergence in the vicinity of the front/surface trough will
contribute to a continued risk for isolated severe storms tonight
across the central/southern High Plains with large hail and damaging
gusts the primary hazards.
Across southeast TX/southwest LA, some increase in
showers/thunderstorms is possible late tonight as an area of low
pressure over the western Gulf of Mexico moves inland. RAP forecast
soundings towards 08-12z suggest weak instability along with curved
low-level hodographs favorable for rotation and some risk for a
tornado.
Removed Marginal Risks across the upper Midwest and over portions of
eastern ID/western WY as the severe risk in these areas appears
minimal the remainder of tonight.
..Bunting.. 05/22/2021
Read more
Sat, 22 May 2021 01:13:27 +0000
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