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LU9DCE > ALERT 29.08.21 22:37z 118 Lines 4878 Bytes #999 (0) @ WW
BID : 4490_LU9DCE
Read: GUEST
Subj: STORM PREDICTION CENTER 29-AGO.21
Path: HB9ON<IW2OHX<IW0QNL<VE2PKT<PY2BIL<LU9DCE
Sent: 210829/2230Z 4490@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
Sun, 29 Aug 2021 13:57:01 +0000
Sun, 29 Aug 2021 13:57:01 +0000
general
1
WW 472 TORNADO AL FL LA MS CW 291105Z - 300000Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 472
NWS Storm Prediction Center Norman OK
605 AM CDT Sun Aug 29 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southwestern Alabama
The western Florida Panhandle
Southeastern Louisiana
Southern Mississippi
Coastal Waters
* Effective this Sunday morning and evening from 605 AM until 700
PM CDT.
* Primary threats include...
A few tornadoes possible
SUMMARY...Major Hurricane Ida will make landfall later this morning
in southeastern Louisiana, and continue moving northwestward and
inland through the afternoon.The threat for supercells and a few
tornadoes will increase through the day in the outer convective
bands to the northeast and east of the center of Ida.
The tornado watch area is approximately along and 80 statute miles
north and south of a line from 20 miles west southwest of Slidell LA
to 40 miles east southeast of Pensacola FL. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU2).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 50 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 15045.
...Thompson
Read more
Sun, 29 Aug 2021 11:05:06 +0000
WW 0472 Status Updates
STATUS FOR WATCH 0472 HAS NOT BEEN ISSUED YET
Read more
Sun, 29 Aug 2021 11:05:07 +0000
No Mesoscale Discussions are in effect as of Sun Aug 29 13:57:11 UTC 2021.
Sun, 29 Aug 2021 13:57:06 +0000
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0737 AM CDT Sun Aug 29 2021
Valid 291300Z - 301200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH THIS
EVENING ACROSS LOWER MI...AND THROUGH TONIGHT ACROSS THE NORTH
CENTRAL GULF COAST...
...SUMMARY...
A few tornadoes are possible through tonight across the north
central Gulf coast, mainly east and northeast of the eye of major
Hurricane Ida.Occasional damaging winds will also be possible this
afternoon across parts of Lower Michigan.
...North central Gulf coast with Hurricane Ida...
Hurricane Ida has continued to strengthen rapidly overnight and is
now an intense Category 4 hurricane that will make landfall by late
morning near Port Fourchon LA (see the latest NHC advisories for
details).The stronger low-midlevel wind field with Ida is
concentrated in a relatively narrow inner core, but some expansion
of the stronger winds is still expected near and after landfall
today.The resultant increase in low-level vertical shear/hodograph
curvature will contribute to the threat for supercells with
occasional tornadoes in the outer northeastern and eastern
convective bands.The tornado threat inland of the coast will be
modulated largely by the degree of low-level moisture and pockets of
surface heating, with the more favored areas maintaining at least
mid 70s dewpoints and temperatures close to 80 F.
...Lower MI area this afternoon/evening...
A midlevel shortwave trough and associated surface cold front across
MN/WI this morning will move eastward to Lower MI this
afternoon/evening.Surface heating/moistening in the wake of early
morning convection will result in destabilization this afternoon
across Lower MI, where MLCAPE will increase to near 2000 J/kg.The
midlevel west-southwesterly flow and effective bulk shear near 30 kt
or greater will be confined to northern Lower MI, with weakening
flow with southward extent.Pre-storm DCAPE is expected to be near
1000 J/kg, which combined with the modestly enhanced midlevel flow
will support multicell clusters/line segments both along and ahead
of the front that will be capable of producing damaging gusts.
..Thompson/Broyles.. 08/29/2021
Read more
Sun, 29 Aug 2021 12:47:12 +0000
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