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LU9DCE > ALERT 14.08.21 15:30z 239 Lines 8330 Bytes #999 (0) @ WW
BID : 3783_LU9DCE
Read: GUEST
Subj: STORM PREDICTION CENTER 14-AGO.21
Path: HB9ON<IW8PGT<LU4ECL<LU9DCE
Sent: 210814/1530Z 3783@LU9DCE.TOR.BA.ARG.SOAM LinBPQ6.0.21
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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
BOLETINES INFORMATIVOS PROGRAMADOS (BIP)
Copyright 2021 Eduardo A. Castillo
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SPC Forecast Products Storm Prediction Center en-us None
spc.feedback@noaa.gov (spc.feedback@noaa.gov)
spc.feedback@noaa.gov (spc.feedback@noaa.gov) Sat, 14 Aug 2021
03:32:02 +0000 Sat, 14 Aug 2021 03:32:02 +0000 general 1
SPC Forecast Products
SPC Severe Thunderstorm Watch 439 WW 439 SEVERE TSTM AZ 140155Z
- 141000Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch
Number 439 NWS Storm Prediction Center Norman OK 755 PM MDT Fri Aug 13
2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
central and southern Arizona
* Effective this Friday night and Saturday morning from 755 PM
until 400 AM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...An increase in thunderstorm coverage is expected over the
next several hours across parts of central and southern Arizona, where
locally strong/damaging wind gusts will be possible with stronger
storms/convective bands.
The severe thunderstorm watch area is approximately along and 70
statute miles either side of a line from 25 miles east southeast of
Tucson AZ to 65 miles west northwest of Phoenix AZ. For a complete
depiction of the watch see the associated watch outline update (WOUS64
KWNS WOU9).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 437...
AVIATION...A few severe thunderstorms with hail surface and aloft to 1
inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector 36040.
...Goss
Read more
Sat, 14 Aug 2021 01:55:02 +0000
SPC Severe Thunderstorm Watch 439 Status Reports WW 0439 Status
Updates
STATUS REPORT ON WW 439
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BUNTING..08/14/21
ATTN...WFO...TWC...PSR...FGZ...
STATUS REPORT FOR WS 439
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
AZC003-007-012-013-019-021-023-025-027-140440-
AZ
. ARIZONA COUNTIES INCLUDED ARE
COCHISE GILA LA PAZ MARICOPA
PIMA PINAL SANTA CRUZ YAVAPAI
YUMA
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER
TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON
COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE
THUNDERSTORM AND TORNADO WATCHES.
Read more
Sat, 14 Aug 2021 03:32:04 +0000
SPC Severe Thunderstorm Watch 438 Status Reports WW 0438 Status
Updates
STATUS REPORT ON WW 438
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE LBE TO 15
SSW YNG.
..BUNTING..08/14/21
ATTN...WFO...CLE...RLX...PBZ...
STATUS REPORT FOR WS 438
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
PAC005-019-031-053-063-065-073-085-121-140240-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ARMSTRONG BUTLER CLARION FOREST
INDIANA JEFFERSON LAWRENCE MERCER
VENANGO
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER
TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON
COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE
THUNDERSTORM AND TORNADO WATCHES.
Read more
Sat, 14 Aug 2021 01:43:03 +0000
SPC Severe Thunderstorm Watch 437 Status Reports WW 0437 Status
Updates
STATUS REPORT ON WW 437
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SE MSV TO 35
SW ALB TO 20 N PSF.
..MARSH..08/14/21
ATTN...WFO...ALY...BGM...BUF...CTP...
STATUS REPORT FOR WS 437
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NYC021-027-039-111-140140-
NY
. NEW YORK COUNTIES INCLUDED ARE
COLUMBIA DUTCHESS GREENE ULSTER
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER
TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON
COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE
THUNDERSTORM AND TORNADO WATCHES.
Read more
Sat, 14 Aug 2021 00:27:06 +0000
SPC Severe Thunderstorm Watch 436 Status Reports WW 0436 Status
Updates
STATUS REPORT ON WW 436
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE ROA TO 30
NW RIC TO 15 NW ABE.
..BUNTING..08/13/21
ATTN...WFO...LWX...PHI...AKQ...CTP...RNK...
STATUS REPORT FOR WS 436
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC003-009-011-017-019-029-033-035-037-041-132340-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL CALVERT CAROLINE CHARLES
DORCHESTER KENT PRINCE GEORGES QUEEN ANNE'S ST.
MARYS TALBOT
VAC007-009-011-019-023-029-031-033-037-041-057-067-083-085-087-
089-097-099-101-141-143-145-159-161-193-590-680-690-760-770-775-
132340-
VA
. VIRGINIA COUNTIES INCLUDED ARE
AMELIA AMHERST APPOMATTOX BEDFORD
BOTETOURT BUCKINGHAM CAMPBELL CAROLINE
CHARLOTTE CHESTERFIELD ESSEX FRANKLIN HALIFAX
HANOVER HENRICO HENRY KING AND QUEEN
KING GEORGE KING WILLIAM PATRICK PITTSYLVANIA
Read more
Sat, 14 Aug 2021 00:00:08 +0000
SPC - No MDs are in effect as of Sat Aug 14 03:32:08 UTC 2021
No Mesoscale Discussions are in effect as of Sat Aug 14
03:32:08 UTC 2021. Sat, 14 Aug 2021 03:32:05 +0000
SPC Aug 14, 2021 0100 UTC Day 1 Convective Outlook SPC 0100Z Day
1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0759 PM
CDT Fri Aug 13 2021
Valid 140100Z - 141200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE
OH VALLEY INTO THE NORTHEAST...PARTS OF OK/AR...PARTS OF
CENTRAL/SOUTHERN AZ...
...SUMMARY...
Isolated severe thunderstorms remain possible this evening over
portions of the Ohio Valley and Northeast, parts of Oklahoma and
Arkansas, and over parts of southern and central Arizona. Damaging
wind gusts are the main hazard expected with these storms.
...Lower Great Lakes into parts of the Mid Atlantic/Northeast...
Scattered thunderstorm clusters will likely persist for a few hours
tonight across portions of the lower Great Lakes into the Mid Atlantic
and Northeast. These clusters will continue moving through an
environment characterized by moderate buoyancy and modest
southwesterly deep-layer flow, and will continue to pose a threat of
at least isolated damaging wind, though a gradual weakening trend is
expected with time as MLCINH increases with nocturnal cooling.
...Arizona...
The east-northeasterly midlevel flow regime to the south of the upper
ridge centered over the Great Basin will support the potential for one
or more thunderstorm clusters to spread into the lower elevations this
evening across central/southern AZ. Locally damaging wind gusts will
be possible with the strongest clusters. A Slight Risk was considered,
but substantial uncertainty remains regarding coverage of the severe
threat into the lower elevations, so the Marginal Risk was maintained
with no changes.
...Oklahoma/Arkansas...
Weakly sheared thunderstorms across portions of OK/AR may persist for
a few hours this evening, with a threat of locally damaging wind gusts
associated with wet microbursts and/or loosely organized outflows. Any
remaining threat should diminish after sunset.
..Dean.. 08/14/2021
Read more
Sat, 14 Aug 2021 01:08:29 +0000
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