ct public
Office: BOX
NOUS41 KBOX 242029
PNSBOX
CTZ002>004-MAZ002>024-026-RIZ001>008-250830-
Public Information Statement
National Weather Service Boston/Norton MA
429 PM EDT Wed Apr 24 2024
...SEVERE WEATHER PREPAREDNESS WEEK - STAYING SAFE DURING HAIL
AND DAMAGING WINDS...
The National Weather Service (NWS) Boston, MA has declared April
22 through April 26 as Severe Weather Preparedness Week. Each day
this week we will highlight a different preparedness topic.
While hail and straight-line winds generally do not garner the
same attention or respect as tornadoes, they can be just as
deadly! Hail can exceed the size of softballs and fall at speeds
of over 100 mph, seriously injuring or killing anyone in its
path. Straight-line winds can topple trees onto cars, houses, and
power lines. Many deaths from straight-line winds are the result
of trees falling onto the person, whether they are outside, in
their house, or driving in their car. Strong straight-line wind
events can even destroy buildings, especially mobile homes and
manufactured homes.
When damaging straight-line thunderstorm winds or large hail is
expected, the National Weather Service will issue a Severe
Thunderstorm Warning. When a Severe Thunderstorm Warning is issued
for your area, or when threatening thunderstorms approach your
area, you should seek shelter immediately! To stay safe during
high winds, the same safety rules that are used for tornadoes also
apply during straight-line wind events, namely, you should seek
shelter in an interior room on the lowest floor of a sturdy
building or shelter, get away from windows, and get down low to
protect yourself from possible flying debris and falling trees.
During large hail situations, you should move indoors and stay
away from windows. Wind-blown hail can shatter windows. If you are
driving during a large hail episode, pull over into a parking lot
or gas station and use blankets or coats to cover yourself in
case the windshield shatters and hail enters the vehicle.
While not as notorious, or perhaps as spectacular to witness as a
tornado, straight-line winds are responsible for most thunderstorm
wind damage, especially across southern New England.
A downburst is a strong, relatively small, area of rapidly
descending air beneath a thunderstorm. It can result from stronger
winds aloft being transported downward to the surface, or it can
result as air within the downburst is cooled significantly as rain
evaporates into initially drier air. This cool, thus dense, air
sinks rapidly to the surface. A downburst is differentiated from
common thunderstorm winds because the downburst winds have the
potential to cause damage near the ground. Surface damage patterns
have shown that whether the winds are straight or even a little
bit curved, they tend to spread out, or diverge, considerably as
they reach the surface. Conversely, damage patterns resulting from
a tornado generally converge toward a narrow central track.
Intense downbursts can be phenomenal. Speeds have been clocked as
high as 175 mph near Morehead City North Carolina and at 158 mph
at Andrews Air Force Base in Maryland. Closer to home, 104 mph
downburst winds were measured at both Worcester Massachusetts on
May 31 1998 and Whitman Massachusetts on May 21 1996. Strong
downbursts will definitely cause roaring sounds and people may
often refer to a sound like a freight train, terms typically
associated with tornadoes. Although downbursts are not tornadoes,
they can cause damage equivalent to that of a small to medium
tornado. After all, wind is wind.
Downbursts are classified as either macrobursts or microbursts,
depending on the areal extent of the damaging wind swath. A
macroburst's damage extends horizontally for more than 2.5 miles.
A microburst is a small downburst with its damaging winds
extending 2.5 miles or less. The small horizontal scale and short
time span of a microburst makes it particularly hazardous to
aviation.
The National Weather Service issues Severe Thunderstorm Warnings
for thunderstorms that are expected to produce damaging wind
gusts of 58 mph or greater, or hail that is one inch or greater
in diameter.
Be sure to take some time this week to learn more about severe
weather safety. Learning and practicing severe weather safety
when the weather is good will allow you to react more quickly
when the weather turns bad.
For more information, visit Weather.gov/safety/thunderstorm
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
NOUS41 KBOX 251013
PNSBOX
CTZ002>004-MAZ002>024-026-RIZ001>008-252215-
Public Information Statement
National Weather Service Boston/Norton MA
613 AM EDT Thu Apr 25 2024
...SEVERE WEATHER PREPAREDNESS WEEK - TORNADOES IN SOUTHERN NEW
ENGLAND IN 2023...
The National Weather Service (NWS) Boston, MA has declared April
22 through April 26 as Severe Weather Preparedness Week. Each day
this week we will highlight a different preparedness topic.
In a typical summer season, southern New England averages 2 or
3 tornadoes. Last year was above normal with 13 tornadoes in NWS
Boston's jurisdiction. Most were on the weaker side with EF-0
ratings on the Enhanced Fujita Damage Scale, which ranges from 0
to 5. The strongest was an EF-2 in Rhode Island.
July 16, 2023 - A NWS survey determined that an EF-0 tornado,
with maximum estimated peak wind of 80 mph, touched down in North
Brookfield at 1056 AM EDT. There were no injuries or damage to
homes in the area. There were several eyewitnesses to the tornado,
although none of them saw an actual funnel. One eyewitness was in
an auto body shop and reported strong winds making the garage
door bow inward. Another eyewitness, the Fire Chief of North
Brookfield, saw debris lofted into the air. A third eyewitness
described chaotic swirling as the tornado passed by. The tornado
is estimated to have touched down a little east of the North
Brookfield Waste Water Center. It traveled about 2 miles to the
northeast, although not on the ground continuously, and ended a
little east of the intersection of Ryan Road and Hillsville Road.
The damage was limited to trees, with the most concentrated damage
area along Ryan Road, slightly north of the Ward Street
intersection.
July 29, 2023 - An EF-1 tornado was confirmed to have touched
down in a small neighborhood in Foxboro near the Mansfield town
line very close to the town of Easton. Several locations on a west
to east path in the neighborhood had several large trees up to 2
feet in diameter snapped at the trunk. Observed tree damage had a
convergent pattern consistent with violently rotating winds. No
major damage to homes was observed, but one chimney appeared to
have been knocked over by a fallen tree. Path width was estimated
to be around 25 yards. Path length of the surveyed damage points
was just shy of 300 yards. Per radar data, a velocity couplet was
over the surveyed neighborhood for only a minute or two before
continuing east over conservation land. It is possible that the
tornado was on the ground for longer, but surveyors were unable to
access conservation land east of the last surveyed damage point.
Additional significant tree damage was found east of
aforementioned conservation land in Easton, but patterns were more
consistent with west to east straight line winds. This is also
consistent with archived KBOX radar which displayed strong
outbound (west to east) velocities over this area.
August 8, 2023 - A small EF-1 tornado touched down in the town of
Mattapoisett Massachusetts at 11:20 AM EDT. The storm was on the
ground for approximately 3 minutes. The storm moved to the
northeast at approximately 20 MPH and lifted off the ground on
North Street just north of Eldorado Drive. Numerous large Pine and
Maple trees were uprooted falling in several directions. There
were also numerous pine trees along the path that were snapped off
between 10 and 20 feet above the ground. The most concentrated
damage was found along Eldorado Drive by Granada Court. The top
wind speed was estimated to be 95 mph.
August 8, 2023 - A small EF-0 tornado touched down in the town of
Barnstable, near the village of Marstons Mills, at 11:52 AM. The
storm tracked ENE from Evergreen Drive for approximately four
minutes before lifting over Joe Thompson Road, at approximately
11:56 AM. The primary damage indicators were an uprooted hardwood
tree and a downed electrical pole, supplemented by strewn debris
inclusive of smaller trees, fence posts, and branches. The damage
was most concentrated near the center of the track at the
intersection of Race Lane and Osterville-West Barnstable Road.
Witnesses described a chaotic event, observing airborne fence
posts and branches. Top wind speeds were estimated at 80 mph.
August 18, 2023 - The storm that produced the Rhode Island
tornado produced a second tornado as it crossed into
Massachusetts, just over the Cumberland line in North
Attleborough. Many trees were snapped or uprooted on Mendon Road
near the intersection of Monticello Drive. An eyewitness saw
swirling debris before taking shelter in her home. From there,
damage was more sporadic. A home on Mary Ann Way had its third
floor window blown in. Additionally, there were a number of downed
or snapped trees on Lisa Drive. The tornado then lifted briefly
before touching back down in Mansfield along Gilbert Street, where
it sheared several large trees near their tops, one of which fell
on a car. An air conditioning unit, estimated to have weighed
1000 pounds, was knocked over on the roof of a one-story
commercial building.
August 18, 2023 - An EF-0 tornado briefly touched down in
Stoughton on Eighth Street and Corbett Street. Sporadic damage
along a short path included fallen trees, one of which fell onto a
shed. Part of a fence was blown in.
August 18, 2023 - An EF-1 tornado touched down in Weymouth near
the intersection of Pleasant and Torrey Streets. Numerous trees
were uprooted and snapped. A home at the intersection of Burton
Terrace and Torrey Street had about twenty singles torn from its
roof. On Park Avenue, a three-inch diameter branch from a tree
trop was blown about 120 yards and driven into the ground to a
depth of 2 feet. An eyewitness who received a Wireless Emergency
Alert could see swirling debris out a window as she took shelter
in her cellar. The tornado lifted near a water tower at the end
of Lockewoods Drive.
August 18, 2023 - An EF-2 tornado caused significant damage along
a discontinuous path in Scituate, Johnston, and North Providence,
Rhode Island. This is the strongest tornado to have struck Rhode
Island since the F-2 tornado in Cranston and Providence on August
7, 1986. The tornado first touched down near Byron Randall Road
in Scituate which is where the most severe damage occurred. There
were hundreds of large trees either uprooted or snapped at their
bases. One home sustained damage to its roof, the top of its
chimney was blown off, windows were blown in, and an exterior door
was dislodged from its framing. Damage was consistent with winds
of around 115 mph which is classified as EF-2 on the Enhanced
Fujita Scale. The tornado then tracked into Johnston where it
crossed I-295 at Exit 10 and lifted a vehicle into the air before
dropping it back onto the highway. The driver was transported to
an area hospital with minor injuries. From there, the tornado
moved across Bridle Way and Carriage Way where a number of trees
were snapped or uprooted, some of which fell onto homes or
vehicles. Some homes also lost some singles from their roofs. A
metal Stop sign pole was bent in half and the sign was blown away.
The tornado then caused damage in Highland Memorial Park Cemetery
where a number of large trees were either snapped or uprooted.
The damage observed in Johnston was consistent with winds of 90 to
100 mph which is classified as EF-1 on the Enhanced Fujita Scale.
Finally, the tornado crossed into North Providence. Similar to
Johnston, a number of trees were either snapped or uprooted, some
falling onto homes or vehicles. Most of the damage observed was to
the north of Mineral Spring Avenue. One of the harder hit areas
included Lydia Avenue, Armand Drive, and Bennett Street where two
homes were made uninhabitable from fallen trees. The damage
observed in North Providence was consistent with winds of 90 to
100 mph which is classified as EF- 1 on the Enhanced Fujita Scale.
The National Weather Service would like to thank the Rhode Island
Emergency Management Agency, the Scituate Police Department, the
Johnston Police Department, the North Providence Fire Department,
and Skywarn Amateur Radio Operators for their assistance with the
damage survey.
August 18, 2023 - A tornado caused damage in the town of
Scotland, located in Windham County, CT. The tornado touched down
on Bass Road and continued along Route 14 (Huntington Road) and
crossed Pinch Street before it eventually lifted near Brook Road.
While there wasn't much in the way of structural damage observed,
other than gutter damage to two homes, there was significant tree
damage. It was estimated that well over one hundred trees were
either downed or sheared off at their tops.
September 13, 2023 - An EF-0 with maximum winds of 75 mph briefly
touched down in a rural area of North Attleborough on Ellis Road
which caused tree damage south of High Street. The tree damage
was limited to the tops of three trees having been twisted off and
lofted into nearby pasture. After speaking with the homeowners
they described seeing the sheets of rain change direction before
seeking shelter in their basement. The tree damage along the path
was consistent with wind speeds between 65 and 75 mph, resulting
an EF-0 rating on the Enhanced Fujita Scale.
September 13, 2023 - An EF-1 with maximum winds of 100 mph began
on Bailey Hill Road in the town of Killingly, CT between
Cranberry Road and Ledge Road, here the tornado removed shingles
from a two story home and either snapped or uprooted healthy and
mature trees. The tornado moved northeast towards Ledge Road
causing similar tree damage before dissipating on Shippie
Schoolhouse Road in the town of Foster, RI. Tree damage along the
path was consistent with wind speeds between 90 and 100 mph,
resulting an EF-1 rating on the Enhanced Fujita Scale.
September 13, 2023 - An EF-1 with maximum winds of 100 mph began
in a wooded area between Chopmist Hill Road (Route 102) and Bungy
Road in the town of Glocester, RI here the tornado either snapped
or uprooted an estimated 75 or more, healthy and mature trees.
The tornado moved northeast and crossed Bungy Road before
dissipating over an open field. Most notable, a small
outbuilding, used as bus stop shelter was blown away by the
tornado with remnants littered west of the original location. Some
pieces were found an a neighbors roof. This damage and the tree
damage along the path was consistent with wind speeds between 90
and 100 mph, resulting an EF-1 rating on the Enhanced Fujita
Scale.
September 13, 2023 - An EF-1 with maximum winds of 100 mph began
east of North Central State Airport along Wellington Road in the
town of Lincoln, RI. A video did show a funnel cloud passing over
the adjacent airport but found no damage. The tornado uprooted a
large tree and damaged am estimated 20' by 30' section of roof on
a building across the street and due north of the uprooted tree.
Video provided by Lincoln Animal Control showed a thin tornado
passing at the end of the facility's driveway and twisting a
large branch from a tree. The tornado moved northeast into a
field of solar panels which uplifted two sections. From here,
the tornado likely lifted before moving across Route 146 at
Route 116 which was documented on a DOT camera. This damage and
the tree damage along the path was consistent with wind speeds
between 90 and 100 mph, resulting an EF-1 rating on the Enhanced
Fujita Scale.
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
NOUS41 KBOX 251334
PNSBOX
CTZ002>004-MAZ002>024-026-RIZ001>008-260134-
Public Information Statement
National Weather Service Boston/Norton MA
934 AM EDT Thu Apr 25 2024
To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS Partners and NWS Employees
From: Greg Schoor, Chief
Marine, Tropical and Tsunami Services Branch
Subject: Hurricane Threats and Impacts (HTI) Mosaic Testing on
April 25, 2024
Weather Forecast Offices (WFOs) in the National Weather Service (NWS)
Southern and Eastern Regions will commence with Hurricane Threats and
Impacts (HTI) threat grid mosaic testing on Thursday, April 25.
Testing will begin at approximately 1100 AM EDT/1500 UTC. Test activities
will take approximately 1 hour; however, NWS dissemination systems may
take up to an hour and a half to purge all test data. All test data
is expected to be cleared by 130 PM EDT/1730 UTC.
For the test, HTI grids will be created for hurricane Wind Threat,
Storm Surge Threat, Flooding Rain Threat, and Tornado Threat at each
participating WFO. Those grids are stitched together into storm-scale
HTI graphics. The HTI Mosaic graphics are available in Keyhole Markup
Language (KML) format on the following webpage:
https://www.weather.gov/hti
The mosaics are also available through the National Digital Forecast
Database and on web pages hosted by the Weather Forecast Offices (WFOs)
affected by the tropical cyclone. These webpages use the following URL
format, where “wfo” should be replaced with the 3 digit identifier
for the WFO of interest:
NWS Eastern Region WFOs:
https://www.weather.gov/wfo/tropical#hti
NWS Southern Region WFOs:
https://www.weather.gov/srh/tropical?office=wfo#hti
More details on HTI can be found in the Product Description Document:
https://www.weather.gov/media/srh/tropical/PDD_HTI.pdf
Periodic software and hardware testing in preparation for tropical
cyclone events will continue during the remainder of 2024.
For more information, please contact:
Andy Nash
Meteorologist-in-Charge
National Weather Service Boston/Norton MA
andy.nash@noaa.gov
National Public Information Statements are online at:
https://www.weather.gov/notification/
$$
Office: OKX
NOUS41 KOKX 251000
PNSOKX
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
600 AM EDT THU APR 25 2024
...This Is Severe Weather Awareness Week...
This statement covers tornadoes in the Tri-State area.
A tornado is a violently rotating column of air that extends between
the base of a thunderstorm and the ground.
Tornadoes develop from severe thunderstorms. They occur most
frequently, on average, during the late afternoon and early evening
from mid June through early September. However, they can occur at
anytime of day. They often develop and dissipate rapidly.
Their intensities are usually weak in our region, EF 0 and EF 1 on
the enhanced fujita, or EF, scale. This represents wind speeds from
65 to 110 mph. Their path length and width are usually small in our
area as well. Most weak tornadoes occur within areas of rain, making
them difficult to spot.
However, the area on occasion does experience a significant tornado,
one rating EF 2 or higher. The strongest tornado to impact the Tri-
State was an F4 tornado with estimated winds of 207-260 mph in
Hamden, Connecticut on July 10, 1989. May 15, 2018 was the last
time there was an EF 2 tornado in the Tri-State. This tornado moved
through Kent in the Lower Hudson Valley, with estimated winds of
around 115 mph.
The number of tornadoes confirmed by the NWS since 1950:
15 in New York City
41 in Long Island
32 in the Lower Hudson Valley
50 in Southern Connecticut,
and 30 in Northeast New Jersey.
The NWS Storm Prediction Center in Norman, Oklahoma issues Tornado
Watches, with a lead time of up to eight hours. A Tornado Watch
means that weather conditions are favorable for the development of
tornadoes in and around a defined area.
Our NWS Forecast Office on Long Island NY issues Tornado Warnings
using a combination of environmental analysis, weather radar,
observations from law enforcement, and volunteer Skywarn Spotters.
Take immediate protective action to save your life.
Tomorrow we will cover flash floods.
$$
NOUS41 KOKX 251345
PNSOKX
CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-
251800-
Public Information Statement
National Weather Service New York NY
945 AM EDT Thu Apr 25 2024
To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS Partners and NWS Employees
From: Greg Schoor, Chief
Marine, Tropical and Tsunami Services Branch
Subject: Hurricane Threats and Impacts (HTI) Mosaic Testing on
April 25, 2024
Weather Forecast Offices (WFOs) in the National Weather Service
(NWS) Southern and Eastern Regions will commence with Hurricane
Threats and Impacts (HTI) threat grid mosaic testing on Thursday,
April 25. Testing will begin at approximately 1500 UTC. Test
activities will take approximately 1 hour; however, NWS
dissemination systems may take up to an hour and a half to purge
all test data. All test data is expected to be cleared by 1730
UTC.
For the test, HTI grids will be created for hurricane Wind
Threat, Storm Surge Threat, Flooding Rain Threat, and Tornado
Threat at each participating WFO. Those grids are stitched
together into storm-scale HTI graphics. The HTI Mosaic graphics
are available in Keyhole Markup Language (KML) format on the
following webpage:
https://www.weather.gov/hti
The mosaics are also available through the National Digital
Forecast Database and on web pages hosted by the Weather Forecast
Offices (WFOs) affected by the tropical cyclone. These webpages
use the following URL format, where “wfo” should be replaced with
the 3 digit identifier for the WFO of interest:
NWS Eastern Region WFOs:
https://www.weather.gov/wfo/tropical#hti
NWS Southern Region WFOs:
https://www.weather.gov/srh/tropical?office=wfo#hti
More details on HTI can be found in the Product Description
Document:
https://www.weather.gov/media/srh/tropical/PDD_HTI.pdf
Periodic software and hardware testing in preparation for
tropical cyclone events will continue during the remainder of
2024.
For more information, please contact:
Nelson Vaz
Warning Coordination Meteorologist
National Weather Service New York Office
Upton, NY 11973
Nelson.Vaz@noaa.gov
or
David Wally
Tropical Program Lead/Lead Forecaster
National Weather Service New York Office
Upton, NY 11973
David.Wally@noaa.gov
National Public Information Statements are online at:
https://www.weather.gov/notification/
$$
