Post by SKYSUMMIT on Apr 17, 2024 16:51:59 GMT -6
Public Information Statement
National Weather Service New Orleans LA
541 PM CDT Wed Apr 17 2024
...NWS Damage Survey for April 10, 2024...
Due to the complexity of the event and the damage associated with
it, additional time was needed to analyze the data. Satellite
imagery was also received over the weekend. That, combined with
additional ground surveys and radar analysis, led to 8 different
tracks being identified between Slidell, LA and east through Kiln,
MS. The EF2 track was extended at the start and shifted north at
the end.
There is additional damage in Harrison and Jackson Counties that
requires more analysis. The tornado tracks in West Feliciana, LA
are also ongoing additional analysis. More updates will be
forthcoming.
It's important to note this data is not final until it is entered
and certified into NWS storm data. This means small edits and
changes will be likely before final certification.
.Alton, LA Tornado...
Rating: EF1
Estimated Peak Wind: 90 mph
Path Length /statute/: 4.92 miles
Path Width /maximum/: 250 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 09:49 AM CDT
Start Location: 1 SE Pearl River / St. Tammany Parish / LA
Start Lat/Lon: 30.3602 / -89.7344
End Date: 04/10/2024
End Time: 09:58 AM CDT
End Location: 2 NNW Slidell / St. Tammany Parish / LA
End Lat/Lon: 30.3035 / -89.7831
Survey Summary:
A combination of high resolution satellite imagery, ground
survey, and radar imagery has aided in the confirmation of a
tornado that tracked across Alton and northwest parts of Slidell
on the morning of April 10, 2024. This tornado touched down just
south of Interstate 12 near Ben Thomas Road and tracked
northeast. The tornado crossed Interstate 12 just west of US
Highway 11 where the tornado was observed via video confirmation
and ground survey of snapped trees. Sporadic tree damage
continued northeast with more widespread tree damage being
identified around Alton Elementary School. The tornado then
crossed US Highway 11 where more tree damage was identified along
Highway 1091. Damage became more sporadic and the end point of
this tornado is harder to discern due to the beginning of a
stronger and larger tornado that crossed nearby this area
thereafter.
..Slidell, LA #1...
Rating: EF2
Estimated Peak Wind: 120 mph
Path Length /statute/: 11.15 miles
Path Width /maximum/: 350 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:01 AM CDT
Start Location: 2 NW Eden Isle / St. Tammany Parish / LA
Start Lat/Lon: 30.251 / -89.8143
End Date: 04/10/2024
End Time: 10:12 AM CDT
End Location: 5 NW Pearlington / St. Tammany Parish / MS
End Lat/Lon: 30.317 / -89.6469
Survey Summary:
A 11.3 mile long, 120 MPH, EF2 tornado touched down 1 mile north
of Eden Isle and tracked east-northeast causing mainly tree
damage through the first half mile or so. It then approached
Pontchartrain Drive and caused damage to a few businesses. This
damage included a business with all windows blown out, minor roof
damage to metal buildings, and snapped power poles. It then
continued on through a neighborhood causing mainly tree damage and
minor roof damage to homes. It crossed onto Old Spanish Trail
where the worst of the damage occurred. A metal business building
had failure of roof purlins and metal beams bent. Across the
street from this metal business building, two apartment buildings
suffered moderate roof damage. The tornado then continued on
causing mostly tree damage and minor roof damage to apartments in
the Fremaux area. It crossed I-10 and continued to cause
additional tree damage before it moved through a few neighborhoods
just north and south of US-190, causing damage to a few homes
roofs. The damage to these roofs was caused by the failure
connection between the walls and the roof. Finally it tracked
through the Pearl River Wildlife Management Area before snapping a
billboard off of Interstate 10 near the Louisiana- Mississippi
border. We received reports of multiple injuries but the total
number is unknown.
..Slidell, LA #2 to Stennis...
Rating: EF1
Estimated Peak Wind: 90 mph
Path Length /statute/: 11.13 miles
Path Width /maximum/: 250 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:03 AM CDT
Start Location: 2 N Slidell / St. Tammany Parish / LA
Start Lat/Lon: 30.3083 / -89.7725
End Date: 04/10/2024
End Time: 10:15 AM CDT
End Location: 7 NNW Pearlington / Hancock County / MS
End Lat/Lon: 30.3604 / -89.6173
Survey Summary:
High resolution satellite analysis, ground survey, and radar
imagery aided in confirming the existence of another tornado that
tracked just south of Interstate 12/10 before crossing the
Interstate near Military Road and impacting the neighborhoods
along Crawford Landing Road. A localized area of tree damage that
aligned along eastbound Exit 83 where branches and trunks were
broken or bent east distinctly separates this damage from the
damage path to the north and east. This tornado damage is being
used as the starting point for the tornado as it aligns with the
remainder of the damage path further east. As the tornado tracked
east, widespread tree damage was reported across Country Club
Blvd with numerous uproots, a few snaps, and many hardwood
branches broken. Damage was relatively more sporadic as the
tornado crossed near the Interstate interchange until damage
became more apparent along Lake Village Blvd and into Crawford
Landing Road. Thereafter, the tornado damage path across the
Pearl River Wildlife Management Area became increasingly more
apparent as the tornado appeared to intensify on high resolution
satellite imagery. The tornado damage path was its widest and
most intense just west of Perch Lake where the peak width was
measured to be near 250 yards. This coincided with the tornado to
the south occluding and dissipating which appeared to have given
it a boost. After this point, the tornado damage path began to
narrow and weaken as the tornado occluded into the tornado to its
north. Mostly EF0 damage points were associated with this damage
path as the tornado dissipated entering the property of Stennis
Space Center.
.Stennis #1 Tornado...
Rating: EF1
Estimated Peak Wind: 100 mph
Path Length /statute/: 19.24 miles
Path Width /maximum/: 500 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:06 AM CDT
Start Location: 1 S Pearl River / St. Tammany Parish / LA
Start Lat/Lon: 30.3559 / -89.7519
End Date: 04/10/2024
End Time: 10:31 AM CDT
End Location: 1 WNW Kiln / Hancock County / MS
End Lat/Lon: 30.4219 / -89.4543
Survey Summary:
The beginning of a long-lived tornado developed near Pearl River,
LA near the intersection of US Highway 11 and LA Highway 41 where
numerous tree branches were snapped and tossed east. A
combination of high resolution satellite and radar imagery
analysis indicated that this tornado quickly grew in size and
intensity after it crossed Interstate 59. Widespread tree damage
could be seen on true color satellite imagery growing to a damage
path as wide as 500 yards over the Pearl River Basin. Extensive
wind damage could be seen extending outward half a mile south of
the tornado path as the tornado approached the Louisiana-
Mississippi border. The damage path briefly became more obscure
and broad as the tornado to its south occluded into Stennis.
Extensive tree damage occurred. While ground surveying was
limited in and around Stennis Space Center, high resolution
satellite imagery identified a swath of damage continued
northeastward through Texas Flat Road. Numerous snapped softwood
trees and a leaning transmission pole were observed. The damage
path gradually became less obvious as the tornado occluded
northeast and the end points are associated with tree damage
observed west of Kiln along Kiln Picayune Road.
..Stennis #2...
Rating: EF0
Estimated Peak Wind: 85 mph
Path Length /statute/: 5.33 miles
Path Width /maximum/: 300 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:17 AM CDT
Start Location: 9 ENE Pearl River / Hancock County / LA
Start Lat/Lon: 30.3911 / -89.6003
End Date: 04/10/2024
End Time: 10:24 AM CDT
End Location: 5 WSW Kiln / Hancock County / MS
End Lat/Lon: 30.4033 / -89.5137
Survey Summary:
This tornado started fairly large from the start with a swath
extending from Leonard Kimble Road and further north along
Mainline Road. High resolution satellite imagery indicated the
damage path continued eastward where it crossed Texas Flat Road.
Branches were broken and a few snapped trees were observed in a
generally confluent pattern. The end point for this tornado is
estimated based off high resolution satellite NDVI differencing
as it interactive with the parent mesovortex and appeared to
dissipate.
..Hancock, LA...
Rating: EF-Unknown
Estimated Peak Wind: Unknown
Path Length /statute/: 2.76 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:23 AM CDT
Start Location: 6 W Kiln / Hancock County / MS
Start Lat/Lon: 30.4128 / -89.5306
End Date: 04/10/2024
End Time: 10:27 AM CDT
End Location: 3 WSW Kiln / Hancock County / MS
End Lat/Lon: 30.4042 / -89.4855
Survey Summary:
A short-tracked tornado was identified using high resolution
satellite imagery NDVI differencing. This tornado tracked over
inaccessible rural lands north of Texas Flat Road along Catahoula
Creek and Jourdan River before eventually dissipating as it
interacted with the parent mesovortex to its east. No damage
could be identified and thus the rating for this tornado is
unknown.
..Kiln #1...
Rating: EF1
Estimated Peak Wind: 100 mph
Path Length /statute/: 3.72 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:28 AM CDT
Start Location: 2 NW Kiln / Hancock County / MS
Start Lat/Lon: 30.4455 / -89.462
End Date: 04/10/2024
End Time: 10:33 AM CDT
End Location: 2 ENE Kiln / Hancock County / MS
End Lat/Lon: 30.4269 / -89.4043
Survey Summary:
Another embedded tornado following along the backside of the
mesovortex was identified using high resolution satellite imagery
NDVI differencing where more localized damage to trees and
structures were identified via ground survey. This tornado
tracked primarily along MS Highway 43 with the most widespread
damage being located along the curve in Cuevas Road where a swath
of trees appeared to be damaged on satellite imagery in addition
to observed damage with ground survey. This is where the tornado
appeared to be at its strongest. Thereafter, the damage path in
NDVI differencing gradually weakens and the tornado is estimated
to have dissipated as it crossed the Silver Creek Acres
neighborhood where tree damage was found near Violet Street and
Gardenia Street in Kiln.
..Kiln #2...
Rating: EF0
Estimated Peak Wind: 85 mph
Path Length /statute/: 2.79 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:31 AM CDT
Start Location: 2 NNW Kiln / Hancock County / MS
Start Lat/Lon: 30.4511 / -89.4439
End Date: 04/10/2024
End Time: 10:34 AM CDT
End Location: 2 NE Kiln / Hancock County / MS
End Lat/Lon: 30.4365 / -89.4005
Survey Summary:
High resolution satellite imagery aided in identifying yet
another embedded tornado that trailed the parent mesovortex that
tracked through the area. More localized tree damage in addition
to an evident damage path on NDVI differencing helped to confirm
the existence of this tornado which tracked from Firetower Road
east-southeastward to Old Joe Moran Road. The end point is
estimated per satellite imagery which occurred over inaccessible
rural lands.
&&
EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:
EF0.....65 to 85 mph
EF1.....86 to 110 mph
EF2.....111 to 135 mph
EF3.....136 to 165 mph
EF4.....166 to 200 mph
EF5.....>200 mph
NOTE:
The information in this statement is preliminary and subject to
change pending final review of the events and publication in
NWS Storm Data.
$$
National Weather Service New Orleans LA
541 PM CDT Wed Apr 17 2024
...NWS Damage Survey for April 10, 2024...
Due to the complexity of the event and the damage associated with
it, additional time was needed to analyze the data. Satellite
imagery was also received over the weekend. That, combined with
additional ground surveys and radar analysis, led to 8 different
tracks being identified between Slidell, LA and east through Kiln,
MS. The EF2 track was extended at the start and shifted north at
the end.
There is additional damage in Harrison and Jackson Counties that
requires more analysis. The tornado tracks in West Feliciana, LA
are also ongoing additional analysis. More updates will be
forthcoming.
It's important to note this data is not final until it is entered
and certified into NWS storm data. This means small edits and
changes will be likely before final certification.
.Alton, LA Tornado...
Rating: EF1
Estimated Peak Wind: 90 mph
Path Length /statute/: 4.92 miles
Path Width /maximum/: 250 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 09:49 AM CDT
Start Location: 1 SE Pearl River / St. Tammany Parish / LA
Start Lat/Lon: 30.3602 / -89.7344
End Date: 04/10/2024
End Time: 09:58 AM CDT
End Location: 2 NNW Slidell / St. Tammany Parish / LA
End Lat/Lon: 30.3035 / -89.7831
Survey Summary:
A combination of high resolution satellite imagery, ground
survey, and radar imagery has aided in the confirmation of a
tornado that tracked across Alton and northwest parts of Slidell
on the morning of April 10, 2024. This tornado touched down just
south of Interstate 12 near Ben Thomas Road and tracked
northeast. The tornado crossed Interstate 12 just west of US
Highway 11 where the tornado was observed via video confirmation
and ground survey of snapped trees. Sporadic tree damage
continued northeast with more widespread tree damage being
identified around Alton Elementary School. The tornado then
crossed US Highway 11 where more tree damage was identified along
Highway 1091. Damage became more sporadic and the end point of
this tornado is harder to discern due to the beginning of a
stronger and larger tornado that crossed nearby this area
thereafter.
..Slidell, LA #1...
Rating: EF2
Estimated Peak Wind: 120 mph
Path Length /statute/: 11.15 miles
Path Width /maximum/: 350 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:01 AM CDT
Start Location: 2 NW Eden Isle / St. Tammany Parish / LA
Start Lat/Lon: 30.251 / -89.8143
End Date: 04/10/2024
End Time: 10:12 AM CDT
End Location: 5 NW Pearlington / St. Tammany Parish / MS
End Lat/Lon: 30.317 / -89.6469
Survey Summary:
A 11.3 mile long, 120 MPH, EF2 tornado touched down 1 mile north
of Eden Isle and tracked east-northeast causing mainly tree
damage through the first half mile or so. It then approached
Pontchartrain Drive and caused damage to a few businesses. This
damage included a business with all windows blown out, minor roof
damage to metal buildings, and snapped power poles. It then
continued on through a neighborhood causing mainly tree damage and
minor roof damage to homes. It crossed onto Old Spanish Trail
where the worst of the damage occurred. A metal business building
had failure of roof purlins and metal beams bent. Across the
street from this metal business building, two apartment buildings
suffered moderate roof damage. The tornado then continued on
causing mostly tree damage and minor roof damage to apartments in
the Fremaux area. It crossed I-10 and continued to cause
additional tree damage before it moved through a few neighborhoods
just north and south of US-190, causing damage to a few homes
roofs. The damage to these roofs was caused by the failure
connection between the walls and the roof. Finally it tracked
through the Pearl River Wildlife Management Area before snapping a
billboard off of Interstate 10 near the Louisiana- Mississippi
border. We received reports of multiple injuries but the total
number is unknown.
..Slidell, LA #2 to Stennis...
Rating: EF1
Estimated Peak Wind: 90 mph
Path Length /statute/: 11.13 miles
Path Width /maximum/: 250 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:03 AM CDT
Start Location: 2 N Slidell / St. Tammany Parish / LA
Start Lat/Lon: 30.3083 / -89.7725
End Date: 04/10/2024
End Time: 10:15 AM CDT
End Location: 7 NNW Pearlington / Hancock County / MS
End Lat/Lon: 30.3604 / -89.6173
Survey Summary:
High resolution satellite analysis, ground survey, and radar
imagery aided in confirming the existence of another tornado that
tracked just south of Interstate 12/10 before crossing the
Interstate near Military Road and impacting the neighborhoods
along Crawford Landing Road. A localized area of tree damage that
aligned along eastbound Exit 83 where branches and trunks were
broken or bent east distinctly separates this damage from the
damage path to the north and east. This tornado damage is being
used as the starting point for the tornado as it aligns with the
remainder of the damage path further east. As the tornado tracked
east, widespread tree damage was reported across Country Club
Blvd with numerous uproots, a few snaps, and many hardwood
branches broken. Damage was relatively more sporadic as the
tornado crossed near the Interstate interchange until damage
became more apparent along Lake Village Blvd and into Crawford
Landing Road. Thereafter, the tornado damage path across the
Pearl River Wildlife Management Area became increasingly more
apparent as the tornado appeared to intensify on high resolution
satellite imagery. The tornado damage path was its widest and
most intense just west of Perch Lake where the peak width was
measured to be near 250 yards. This coincided with the tornado to
the south occluding and dissipating which appeared to have given
it a boost. After this point, the tornado damage path began to
narrow and weaken as the tornado occluded into the tornado to its
north. Mostly EF0 damage points were associated with this damage
path as the tornado dissipated entering the property of Stennis
Space Center.
.Stennis #1 Tornado...
Rating: EF1
Estimated Peak Wind: 100 mph
Path Length /statute/: 19.24 miles
Path Width /maximum/: 500 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:06 AM CDT
Start Location: 1 S Pearl River / St. Tammany Parish / LA
Start Lat/Lon: 30.3559 / -89.7519
End Date: 04/10/2024
End Time: 10:31 AM CDT
End Location: 1 WNW Kiln / Hancock County / MS
End Lat/Lon: 30.4219 / -89.4543
Survey Summary:
The beginning of a long-lived tornado developed near Pearl River,
LA near the intersection of US Highway 11 and LA Highway 41 where
numerous tree branches were snapped and tossed east. A
combination of high resolution satellite and radar imagery
analysis indicated that this tornado quickly grew in size and
intensity after it crossed Interstate 59. Widespread tree damage
could be seen on true color satellite imagery growing to a damage
path as wide as 500 yards over the Pearl River Basin. Extensive
wind damage could be seen extending outward half a mile south of
the tornado path as the tornado approached the Louisiana-
Mississippi border. The damage path briefly became more obscure
and broad as the tornado to its south occluded into Stennis.
Extensive tree damage occurred. While ground surveying was
limited in and around Stennis Space Center, high resolution
satellite imagery identified a swath of damage continued
northeastward through Texas Flat Road. Numerous snapped softwood
trees and a leaning transmission pole were observed. The damage
path gradually became less obvious as the tornado occluded
northeast and the end points are associated with tree damage
observed west of Kiln along Kiln Picayune Road.
..Stennis #2...
Rating: EF0
Estimated Peak Wind: 85 mph
Path Length /statute/: 5.33 miles
Path Width /maximum/: 300 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:17 AM CDT
Start Location: 9 ENE Pearl River / Hancock County / LA
Start Lat/Lon: 30.3911 / -89.6003
End Date: 04/10/2024
End Time: 10:24 AM CDT
End Location: 5 WSW Kiln / Hancock County / MS
End Lat/Lon: 30.4033 / -89.5137
Survey Summary:
This tornado started fairly large from the start with a swath
extending from Leonard Kimble Road and further north along
Mainline Road. High resolution satellite imagery indicated the
damage path continued eastward where it crossed Texas Flat Road.
Branches were broken and a few snapped trees were observed in a
generally confluent pattern. The end point for this tornado is
estimated based off high resolution satellite NDVI differencing
as it interactive with the parent mesovortex and appeared to
dissipate.
..Hancock, LA...
Rating: EF-Unknown
Estimated Peak Wind: Unknown
Path Length /statute/: 2.76 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:23 AM CDT
Start Location: 6 W Kiln / Hancock County / MS
Start Lat/Lon: 30.4128 / -89.5306
End Date: 04/10/2024
End Time: 10:27 AM CDT
End Location: 3 WSW Kiln / Hancock County / MS
End Lat/Lon: 30.4042 / -89.4855
Survey Summary:
A short-tracked tornado was identified using high resolution
satellite imagery NDVI differencing. This tornado tracked over
inaccessible rural lands north of Texas Flat Road along Catahoula
Creek and Jourdan River before eventually dissipating as it
interacted with the parent mesovortex to its east. No damage
could be identified and thus the rating for this tornado is
unknown.
..Kiln #1...
Rating: EF1
Estimated Peak Wind: 100 mph
Path Length /statute/: 3.72 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:28 AM CDT
Start Location: 2 NW Kiln / Hancock County / MS
Start Lat/Lon: 30.4455 / -89.462
End Date: 04/10/2024
End Time: 10:33 AM CDT
End Location: 2 ENE Kiln / Hancock County / MS
End Lat/Lon: 30.4269 / -89.4043
Survey Summary:
Another embedded tornado following along the backside of the
mesovortex was identified using high resolution satellite imagery
NDVI differencing where more localized damage to trees and
structures were identified via ground survey. This tornado
tracked primarily along MS Highway 43 with the most widespread
damage being located along the curve in Cuevas Road where a swath
of trees appeared to be damaged on satellite imagery in addition
to observed damage with ground survey. This is where the tornado
appeared to be at its strongest. Thereafter, the damage path in
NDVI differencing gradually weakens and the tornado is estimated
to have dissipated as it crossed the Silver Creek Acres
neighborhood where tree damage was found near Violet Street and
Gardenia Street in Kiln.
..Kiln #2...
Rating: EF0
Estimated Peak Wind: 85 mph
Path Length /statute/: 2.79 miles
Path Width /maximum/: 150 yards
Fatalities: 0
Injuries: 0
Start Date: 04/10/2024
Start Time: 10:31 AM CDT
Start Location: 2 NNW Kiln / Hancock County / MS
Start Lat/Lon: 30.4511 / -89.4439
End Date: 04/10/2024
End Time: 10:34 AM CDT
End Location: 2 NE Kiln / Hancock County / MS
End Lat/Lon: 30.4365 / -89.4005
Survey Summary:
High resolution satellite imagery aided in identifying yet
another embedded tornado that trailed the parent mesovortex that
tracked through the area. More localized tree damage in addition
to an evident damage path on NDVI differencing helped to confirm
the existence of this tornado which tracked from Firetower Road
east-southeastward to Old Joe Moran Road. The end point is
estimated per satellite imagery which occurred over inaccessible
rural lands.
&&
EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:
EF0.....65 to 85 mph
EF1.....86 to 110 mph
EF2.....111 to 135 mph
EF3.....136 to 165 mph
EF4.....166 to 200 mph
EF5.....>200 mph
NOTE:
The information in this statement is preliminary and subject to
change pending final review of the events and publication in
NWS Storm Data.
$$
