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LU9DCE > ALERT 25.03.23 06:51z 516 Lines 14748 Bytes #999 (0) @ WW
BID : 7098_LU9DCE
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Subj: STORM PREDICTION CENTER 25-MAR23
Path: HB9ON<IW0QNL<IZ3LSV<I0OJJ<LU4ECL<LU9DCE
Sent: 230325/0631Z 7098@LU9DCE.TOR.BA.ARG.SOAM LinBPQ6.0.23
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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
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SPC Tornado Watch 77
WW 77 TORNADO AL TN 250225Z - 250800Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 77
NWS Storm Prediction Center Norman OK
925 PM CDT Fri Mar 24 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern Alabama
Middle Tennessee
* Effective this Friday night and Saturday morning from 925 PM
until 300 AM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A bowing squall line will continue eastward from northeast
Mississippi and western Tennessee into middle Tennessee and
northwestern Alabama through the early overnight hours. The squall
line will pose a threat for embedded tornadoes and swaths of
damaging winds up to 75 mph. Farther south, a supercell or two may
persist into Alabama ahead of the squall line, with the potential to
produce a strong tornado or two.
The tornado watch area is approximately along and 55 statute miles
east and west of a line from 15 miles northwest of Nashville TN to
40 miles east of Columbus MS. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU7).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 76...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 25050.
...Thompson
Read more
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SPC Tornado Watch 76
WW 76 TORNADO AR LA MS TN 242215Z - 250500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 76
NWS Storm Prediction Center Norman OK
515 PM CDT Fri Mar 24 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Arkansas
Northeastern Louisiana
Central and northern Mississippi
Western Tennessee
* Effective this Friday afternoon from 515 PM until Midnight CDT.
* Primary threats include...
Several tornadoes and a couple intense tornadoes likely
Widespread damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...A maturing squall line will surge eastward from Arkansas
into western Tennessee and northwestern Mississippi through early
tonight, with an accompanying threat for swaths of damaging winds
(up to 75 mph) and tornadoes with embedded circulations. Farther
south, a few semi-discrete supercells are expected ahead of the
squall line, from northeast Louisiana across southeastern Arkansas
and west central/northwestern Mississippi. A few strong-intense
tornadoes will be possible in this corridor with any persistent
supercells later this evening.
The tornado watch area is approximately along and 120 statute miles
east and west of a line from 25 miles northwest of Memphis TN to 20
miles south of Natchez MS. For a complete depiction of the watch see
the associated watch outline update (WOUS64 KWNS WOU6).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 75...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 23050.
...Thompson
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SPC Tornado Watch 77 Status Reports
WW 0077 Status Updates
STATUS REPORT ON WW 77
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KERR..03/25/23
ATTN...WFO...HUN...BMX...OHX...
STATUS REPORT FOR WT 77
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC033-043-049-057-059-071-075-077-079-083-089-093-095-103-127-
133-250440-
AL
. ALABAMA COUNTIES INCLUDED ARE
COLBERT CULLMAN DEKALB
FAYETTE FRANKLIN JACKSON
LAMAR LAUDERDALE LAWRENCE
LIMESTONE MADISON MARION
MARSHALL MORGAN WALKER
WINSTON
TNC003-015-021-031-037-041-043-051-055-061-081-085-099-101-103-
117-119-127-135-141-149-159-175-177-181-185-187-189-250440-
TN
. TENNESSEE COUNTIES INCLUDED ARE
BEDFORD CANNON CHEATHAM
COFFEE DAVIDSON DE KALB
DICKSON FRANKLIN GILES
GRUNDY HICKMAN HUMPHREYS
LAWRENCE LEWIS LINCOLN
MARSHALL MAURY MOORE
Read more
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SPC Tornado Watch 76 Status Reports
WW 0076 Status Updates
STATUS REPORT ON WW 76
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE ESF
TO 15 E MLU TO 15 NW GWO TO 30 N TUP TO 45 ESE MKL.
..KERR..03/25/23
ATTN...WFO...LZK...JAN...MEG...SHV...
STATUS REPORT FOR WT 76
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC025-029-035-041-065-067-083-107-123-250440-
LA
. LOUISIANA PARISHES INCLUDED ARE
CATAHOULA CONCORDIA EAST CARROLL
FRANKLIN MADISON MOREHOUSE
RICHLAND TENSAS WEST CARROLL
MSC001-007-013-015-017-019-021-023-025-029-037-043-049-051-053-
055-057-061-063-069-075-077-079-081-083-085-087-089-095-097-099-
101-103-105-115-117-121-123-125-127-129-141-149-155-159-161-163-
250440-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS ATTALA CALHOUN
CARROLL CHICKASAW CHOCTAW
CLAIBORNE CLARKE CLAY
COPIAH FRANKLIN GRENADA
HINDS HOLMES HUMPHREYS
ISSAQUENA ITAWAMBA JASPER
JEFFERSON KEMPER LAUDERDALE
Read more
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SPC Tornado Watch 75 Status Reports
WW 0075 Status Updates
STATUS REPORT ON WW 75
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S LFK TO
35 NNE SHV TO 25 WNW LIT.
..THORNTON..03/24/23
ATTN...WFO...LZK...SHV...HGX...
STATUS REPORT FOR WT 75
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC019-027-039-053-103-125-242340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CLARK COLUMBIA DALLAS
GRANT OUACHITA SALINE
LAC013-015-027-031-069-081-085-119-242340-
LA
. LOUISIANA PARISHES INCLUDED ARE
BIENVILLE BOSSIER CLAIBORNE
DE SOTO NATCHITOCHES RED RIVER
SABINE WEBSTER
TXC403-242340-
TX
. TEXAS COUNTIES INCLUDED ARE
SABINE
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SPC MD 334
MD 0334 CONCERNING TORNADO WATCH 77... FOR SOUTH CENTRAL AND
SOUTHEASTERN KENTUCKY...MIDDLE INTO EASTERN TENNESSEE....NORTHERN
ALABAMA
Mesoscale Discussion 0334
NWS Storm Prediction Center Norman OK
1055 PM CDT Fri Mar 24 2023
Areas affected...south central and southeastern Kentucky...middle
into eastern Tennessee....northern Alabama
Concerning...Tornado Watch 77...
Valid 250355Z - 250630Z
The severe weather threat for Tornado Watch 77 continues.
SUMMARY...An organized line of thunderstorms may pose a continuing
risk for damaging wind gusts another couple of hours, but this
threat probably will diminish across the Cumberland Plateau by 2-3
AM EDT. A new severe weather watch currently seems unlikely, but
trends will continue to be monitored.
DISCUSSION...A well organized convective system continues to evolve
to the east and south of the mesoscale convective vortex, preceded
by a notable meso low migrating northeastward near/northwest through
north of Nashville vicinity. Richer boundary-layer moisture
characterized by 60s F+ dewpoints is becoming cut off near the
southern Tennessee border, which model forecast soundings indicate
will minimize destabilization northeastward across middle Tennessee
toward the Cumberland Plateau. However, 70s F+ surface temperatures
have been maintained in a plume wrapping into the center of the meso
low.
Given the strength of the west-southwesterly lower/mid-tropospheric
wind fields (40-70+ kt in the 850-700 mb layer) impinging on the
rear of the convective system, the low-level thermodynamic profiles
with warm and unsaturated layers may support a continuing risk for
downward mixing of potentially damaging gusts to the surface. This
probably will persist at least another hour or two, but may begin to
diminish as forcing for ascent spreads into the Cumberland Plateau
toward 06-07Z, where the boundary layer remains cooler and warm
advection may not contribute to appreciable warming.
..Kerr.. 03/25/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MRX...JKL...LMK...OHX...BMX...HUN...MEG...
LAT...LON 36138439 35228521 34178754 34398820 35598709 36798679
37098425 36138439
Read more
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SPC MD 333
MD 0333 CONCERNING TORNADO WATCH 76...77... FOR NORTHEASTERN MS INTO
NORTHWESTERN AL
Mesoscale Discussion 0333
NWS Storm Prediction Center Norman OK
0957 PM CDT Fri Mar 24 2023
Areas affected...Northeastern MS into northwestern AL
Concerning...Tornado Watch 76...77...
Valid 250257Z - 250400Z
The severe weather threat for Tornado Watch 76, 77 continues.
SUMMARY...Severe threat, including the potential for strong
tornadoes and damaging winds, continues across parts of northeastern
MS into northwestern AL.
DISCUSSION...Latest radar data from GWX depicts a well-organized
supercell cluster tracking east-northeastward across northeastern MS
this evening. Ahead of this storm, lower 60s dewpoints are spreading
northward in response to continued cyclogenesis to the north --
supporting surface-based inflow. With a strengthening low-level jet
over the area (70+ kt 850-mb winds) sampled by the GWX VWP,
hodographs are becoming increasingly favorable for intense
supercells (even if embedded in line segments). Given the ample
streamwsie vorticity and surface-based inflow for this storm, strong
tornadoes and damaging winds remain possible from northeastern MS
into northwestern AL.
..Weinman.. 03/25/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BMX...HUN...MEG...
LAT...LON 34338873 34798859 34978843 35018805 34978783 34898764
34648757 34378758 34118785 34088813 34168854 34338873
Read more
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SPC Center Public Severe Weather Outlook (PWO)
Public Severe Weather Outlook
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0848 PM CDT FRI MAR 24 2023
...Severe thunderstorms expected over parts of the northern
Mississippi into adjacent parts of northern Alabama and middle
Tennessee overnight...
* LOCATIONS...
Northern half of Mississippi
Southwestern Tennessee
Northwestern Alabama
* HAZARDS...
A few intense tornadoes
Scattered damaging winds, some hurricane force
* SUMMARY...
Scattered severe thunderstorms are likely across parts of the
lower Mississippi Valley and Tennessee Valley tonight. Several
tornadoes are possible, including the possibility for a few
strong tornadoes, and scattered damaging gusts.
Preparedness actions...
Tornadoes at night can be particularly dangerous because they
are usually fast-moving and difficult to see. Stay tuned to
NOAA Weather Radio, weather.gov, or other media for watches and
warnings. A tornado watch means that conditions are favorable
for tornadoes to form during the next several hours. If a tornado
warning is issued for your area, move to a place of safety,
ideally in a basement or interior room on the lowest floor of a
sturdy building.
&&
..Smith.. 03/25/2023
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SPC Mar 25, 2023 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook CORR 1
NWS Storm Prediction Center Norman OK
0814 PM CDT Fri Mar 24 2023
Valid 250100Z - 251200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF
THE LOWER MISSISSIPPI VALLEY INTO THE TENNESSEE VALLEY...
CORRECTED FOR AN ERROR IN THE SIGNIFICANT TORNADO PROBABILITY LINE
...SUMMARY...
Scattered severe thunderstorms are likely across parts of the lower
Mississippi Valley and Tennessee Valley tonight. Several tornadoes
are possible, including the possibility for a few strong tornadoes,
and scattered damaging gusts.
...01z update for the lower MS Valley north into the lower OH
Valley...
Ongoing extensive band of thunderstorms from the lower OH Valley
into the lower MS Valley will continue to progress
east-northeastward this evening and into the overnight hours, in
advance of a migratory mid-level shortwave trough. A surface low is
forecast to continue to deepen and develop northeast from northeast
AR into IN by early morning tomorrow. A warm front will advance
northward tonight into parts of the lower OH Valley as the moist
sector (via a marine front) advances northward into northern MS.
Considerable uncertainty exists on the northern portion of the
outlook area across the lower OH Valley where very strong wind
fields will be present in a gradually destabilizing airmass
featuring scant to weak buoyancy. Have lowered forecast severe
probabilities across this region due primarily to weaker instability
and increased confidence in only limited buoyancy developing before
a band of storms overspreads the area from the west tonight.
Farther south, a mixed mode of linear storms and supercells will
likely traverse the northern portion of a moist/more unstable
airmass near and south of a marine warm front. Strengthening
low-level shear/SRH will favor storm organization in the form of
persistent mesocyclones. A couple of longer-track supercells are
possible and a few of these supercells will likely pose a tornado
risk. A few strong tornadoes are possible. As storms gradually
grow upscale tonight and move into weaker instability over the TN
Valley, a gradual lessening in tornado potential is expected. In
the meantime, scattered damaging gusts are probable with the more
intense storms before more limited severe-wind coverage ensues.
..Smith.. 03/25/2023
Read more
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