Severe Thunderstorm Warning 97, NWS Buffalo, NY

275 
WWUS51 KBUF 052214
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
614 PM EDT Mon Aug 5 2024

NYC063-052223-
/O.CAN.KBUF.SV.W.0097.000000T0000Z-240805T2245Z/
Niagara NY-
614 PM EDT Mon Aug 5 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NIAGARA COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.

&&

LAT...LON 4341 7797 4338 7774 4324 7815 4342 7841
TIME...MOT...LOC 2213Z 247DEG 35KT 4344 7806 

$$

NYC055-073-052245-
/O.CON.KBUF.SV.W.0097.000000T0000Z-240805T2245Z/
Orleans NY-Monroe NY-
614 PM EDT Mon Aug 5 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN ORLEANS AND NORTHWESTERN MONROE COUNTIES...

At 613 PM EDT, a severe thunderstorm was located 7 miles northwest of
Hamlin Beach State Park, moving northeast at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Hamlin Beach State Park, Point Breeze, Waterport, Lakeside Beach
State Park, Kent, Gaines, Kendall, and Morton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4341 7797 4338 7774 4324 7815 4342 7841
TIME...MOT...LOC 2213Z 247DEG 35KT 4344 7806 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

EAJ

Area Forecast Discussion
National Weather Service Buffalo NY
526 PM EDT Mon Aug 5 2024

.SYNOPSIS...
A cold front will slowly push southwards across our region
through this evening. Showers and thunderstorms, some of which
could become strong to severe, are possible through this
evening. The greatest risk for damaging winds and hail will come
this afternoon across the Finger Lakes region and portions of
the western Southern Tier. Cooler...more comfortable conditions
then follow the front through at least Thursday.

&&

.NEAR TERM /THROUGH TUESDAY/...
A Severe Thunderstorm Watch remains in effect until 8 PM. Mesoanalysis
shows 1000-2000 J/kg of Mixed Layer CAPE with little to no CIN
and 35-40kts of west- northwesterly oriented effective shear
across western and central NY. But the CAPE varies, and is lower
in locations where there have already been storms. Overall,
storms seem to be enhanced along a mid-level feature which is
tracking from west to east across the area. In addition,
convection has been more potent along lake breeze boundaries, so
there are multiple severe weather factors in play. Damaging
winds, large hail, and an isolated tornado are the main severe
weather threats.

In addition, PWATS around 1.7 inches along with boundaries make
heavy rain and flash flooding a continued risk through this
evening. After this, the mid-level wave and front will push
south of the area with showers and the risks for flooding and
severe weather diminishing later this evening.

The cold front will move through the region tonight and settle south
of the New York border Tuesday. A northerly flow will move into the
region from north to south tonight with mostly dry conditions the
second half of the night. Low level moisture will linger across
western NY and patchy fog is possible especially across valley
locations that received rainfall.

Another shortwave trough will approach from the west Tuesday, while
the cold front remains stationary across Pennsylvania. Dry
conditions will last through the morning, with chances for showers
increasing from west to east across western NY Tuesday afternoon. It
will likely be a rainy afternoon across the western Southern Tier
with a low chance for thunderstorms near the NY/PA border. Mostly
dry weather is expected across the North Country.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/...
A shortwave trough over the forecast area Tuesday evening will
quickly jog east to New England Tuesday night. This will serve to
shunt the frontal boundary and associated lingering convection south
of Lake Ontario further into PA overnight with sharply decreasing
chances for showers and thunderstorms from south to north. Clearing
skies and 850H temps dipping to around +10C overnight behind the
boundary will make for the coolest night we have seen in at least a
couple of weeks, with lows well into the 50s areawide...A few
readings in the upper 40s possible across the hilltops.

A stretch of cooler, quieter, and less humid weather expected
Wednesday through Thursday as Canadian high pressure builds
southeast across the Great Lakes. The frontal boundary will remain
stalled to our south across PA Wednesday and then slowly begin to
shift back northward as a warm front Thursday, which may support a
stray shower or two across the Southern Tier either day. For areas
further north, expect mostly sunny skies and a fresh northeasterly
breeze. Temperatures will mostly range in the 70s areawide by the
afternoon hours both days, dipping back into the 50s Wednesday night.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
An upper level trough will dig across the Great Lakes region Friday
and Saturday before interacting with the remnants of Tropical
System Debby. Model consensus continues to keep the heavy rainfall
associated with Debby to our south and east, but some models
clip our region, especially areas east of the Genesee Valley
Friday and Friday night. Given the risk for steadier
precipitation will carry a chance of rain instead of showers.
This will have to be monitored closely, with a small chance that
our area will be impacted by heavy rain associated with the PRE
(Predecessor Rain Event).

After this, there will be lingering chances for showers as the
upper level trough merges with the tropical remnants and stalls
across southern Quebec province. Temperatures this period will
average slightly below normal, especially high temperatures.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
A slow moving cold front will approach and eventually pass through
our region today. VFR conditions will dominate the day...but MVFR
conditions will be found in the heavier showers and thunderstorms
during afternoon. The convection could be strong to severe across
the Finger Lakes region and western Southern Tier through 00z.
Another area of thunderstorms that is being watched closely is
across central Lake Erie. This may increase the chance for
convection along a west to east oriented boundary near
KIAG/KBUF/KROC this evening.

Showers and weakening thunderstorms will taper off and end from
north to south early tonight. While this will leave mainly VFR
weather for the busier TAF sites...cigs are forecast to drop to
between 700-1500 ft for much of the Finger Lakes and western
Southern Tier. MVFR cigs will be likely most elsewhere from 06
to 12z.

Flight conditions will improve Tuesday morning with ceilings 3-5kt
feet remaining across the western Southern Tier through the
afternoon.

Outlook...

Wednesday...Mainly VFR.
Thursday...VFR/MVFR with a slight chance of an afternoon shower or a
thunderstorm.
Friday...VFR/MVFR with a chance of showers or a thunderstorm.
Saturday...VFR/MVFR with a low chance of showers or a thunderstorm.

&&

.MARINE...
A slow moving cold front will settle south across the region
through this evening. This will encourage southwest winds to
freshen somewhat on Lake Erie...while light to gentle winds will
be in place on Lake Ontario. Waters will become choppy on the
east end of Lake Erie in the process...yet conditions should
remain below small craft advisory criteria. The main concern
today will be convection that precedes/ accompanies the
aforementioned cold front. Mariners should be wary of special
marine warnings for this convection.

Moderate breezes in the wake of the front will veer to the north and
northeast tonight. Gentle to moderate northeasterlies will then
remain in place throughout the region on Tuesday. This could lead to
Small Craft Advisory conditions. Choppy conditions are likely on
Lake Ontario for sites west of Irondequoit Bay.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...None.
MARINE...None.

&&

SYNOPSIS...HSK/RSH
NEAR TERM...Apffel/HSK
SHORT TERM...EAJ/PP
LONG TERM...Apffel/PP
AVIATION...HSK/RSH
MARINE...HSK/RSH

Hazardous Weather Outlook
National Weather Service Buffalo NY
224 PM EDT Mon Aug 5 2024

NYZ006>008-061830-
Oswego-Jefferson-Lewis-
224 PM EDT Mon Aug 5 2024

This Hazardous Weather Outlook is for portions of central New York.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ001>005-010>014-019>021-085-061830-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie-Genesee-
Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus-Allegany-
Southern Erie-
224 PM EDT Mon Aug 5 2024

...SEVERE THUNDERSTORM WATCH 597 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LOZ030-042>045-062>065-SLZ022-024-061830-
Lower Niagara River-
Lake Ontario nearshore waters from the Niagara River to Hamlin Beach-
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence
River-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence River-
Saint Lawrence River from Cape Vincent to Ogdensburg-
Saint Lawrence River from Ogdensburg to Saint Regis-
224 PM EDT Mon Aug 5 2024

This Hazardous Weather Outlook is for portions of Lake Ontario and
Saint Lawrence River.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LEZ020-040-041-061830-
Upper Niagara River and Buffalo Harbor-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
224 PM EDT Mon Aug 5 2024

...SEVERE THUNDERSTORM WATCH 597 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for the New York waters of Lake
Erie.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

Preliminary Local Storm Report
National Weather Service Buffalo NY
246 PM EDT Mon Aug 5 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0208 PM     Tstm Wnd Dmg     1 NNE Portville         42.05N 78.33W
08/05/2024                   Cattaraugus        NY   Law Enforcement

            Trees down on a powerline on Haskell Road.
            Time estimated from radar.

&&

Preliminary Local Storm Report
National Weather Service Buffalo NY
251 PM EDT Mon Aug 5 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 PM     Rain             2 NW West Seneca        42.86N 78.77W
08/05/2024  M2.33 Inch       Erie               NY   Cocorahs

            Rainfall amount of 2.33 inches fell in 90
            minutes.

&&

Preliminary Local Storm Report
National Weather Service Buffalo NY
317 PM EDT Mon Aug 5 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1249 PM     Tornado          1 W Buffalo             42.89N 78.88W
08/05/2024                   Erie               NY   NWS Storm Survey

            NWS storm survey confirms that a tornado
            touched down in the city of Buffalo near
            Niagara St and Carolina St.

&&

Special Weather Statement
National Weather Service Buffalo NY
440 PM EDT Mon Aug 5 2024

NYZ010>012-052130-
Wyoming NY-Genesee NY-Northern Erie NY-
440 PM EDT Mon Aug 5 2024

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN WYOMING...
NORTHEASTERN ERIE AND SOUTHWESTERN GENESEE COUNTIES THROUGH 530 PM
EDT...

At 439 PM EDT, Doppler radar was tracking a strong thunderstorm over
Clarence, moving east at 15 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Cheektowaga, Clarence, Batavia, Depew, Lancaster, Darien Lakes State
Park, Pembroke, Bennington, Akron, Alden, Attica, Corfu, Alexander,
Clarence Center, and East Pembroke.

This includes Interstate 90 between exits 48 and 49.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.

&&

LAT...LON 4293 7871 4304 7869 4302 7817 4277 7824
TIME...MOT...LOC 2039Z 279DEG 11KT 4295 7856

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Reynolds

Preliminary Local Storm Report
National Weather Service Buffalo NY
450 PM EDT Mon Aug 5 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     Flash Flood      1 N Tonawanda           42.99N 78.87W
08/05/2024                   Erie               NY   911 Call Center

            Several cars trapped in high water on
            Delaware Avenue under an underpass. Near
            Knoche Road.

&&

Special Weather Statement
National Weather Service Buffalo NY
518 PM EDT Mon Aug 5 2024

NYZ001-002-052200-
Orleans NY-Niagara NY-
518 PM EDT Mon Aug 5 2024

...A STRONG THUNDERSTORM WILL IMPACT EASTERN NIAGARA AND WESTERN
ORLEANS COUNTIES THROUGH 600 PM EDT...

At 518 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lockport, moving east at 35 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lockport, Medina, Newfane, Middleport, Waterport, Lakeside Beach
State Park, Ridgeway, Shelby, Lyndonville, Barker, Gasport,
Knowlesville, Millville, and Rapids.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.

&&

LAT...LON 4325 7883 4342 7841 4342 7825 4319 7822
      4309 7872
TIME...MOT...LOC 2118Z 249DEG 31KT 4320 7869

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

EAJ