Alert archive / New York / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 70, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 8, 2019, 12:38 PM EDT for Livingston County, Ontario County, New York. It was in force for 67 min. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 8, 2019, 12:38 PM EDT (16:38 UTC)
- Expired
- Aug 8, 2019, 1:45 PM EDT
- In force
- 67 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Livingston County, NY, Ontario County, NY
The radar
The Buffalo radar (KBUF), 107 km from the middle of the area, began a volume at 16:38 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 8, 12:42 PM EDT | TSTM WND DMG | Conesus, NY | TREES AND WIRES DOWN. TIME ESTIMATED. |
| Aug 8, 12:45 PM EDT | TSTM WND DMG | 2 Sw Honeoye, NY | TREE DOWN ON WIRES ON CURTIS RD. TIME ESTIMATED. |
| Aug 8, 12:45 PM EDT | TSTM WND DMG | Springwater, NY | TREES AND WIRES DOWN. TIME ESTIMATED. |
| Aug 8, 12:46 PM EDT | TSTM WND DMG | Hemlock, NY | TREES AND WIRES DOWN. TIME ESTIMATED. |
| Aug 8, 12:48 PM EDT | TSTM WND DMG | Lima, NY | TREES AND POWERLINES DOWN. TIME ESTIMATED. |
| Aug 8, 12:48 PM EDT | TSTM WND DMG | West Bloomfield, NY | TREE DOWN NEAR 5/20 AND COUNTY ROAD 37. TIME ESTIMATED. |
| Aug 8, 12:52 PM EDT | TSTM WND DMG | 5 S Honeoye, NY | TREE ON WIRES ON COUNTY ROAD 36. TIME ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 7 storm reports to this severe thunderstorm warning; the first came 4 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 8, 12:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 4.6 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 39 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
217
WUUS51 KBUF 081638
SVRBUF
NYC051-069-081745-
/O.NEW.KBUF.SV.W.0070.190808T1638Z-190808T1745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1238 PM EDT Thu Aug 8 2019
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Central Livingston County in western New York...
Ontario County in western New York...
* Until 145 PM EDT..
* At 1238 PM EDT, severe thunderstorms were located along a line
extending from Avon to 8 miles west of Dansville, moving east at 25
mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Geneva, Canandaigua, Geneseo, Dansville, Avon, Conesus, Bristol,
Lima, Bloomfield and Naples.
This includes Interstate 390 between exits 4 and 6, and between
exits 8 and 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4248 7784 4252 7784 4252 7790 4291 7777
4292 7698 4287 7696 4286 7698 4276 7697
4276 7731 4267 7737 4258 7737 4258 7766
4253 7766 4253 7772 4247 7772
TIME...MOT...LOC 1638Z 260DEG 21KT 4291 7774 4253 7786
HAIL...0.75IN
WIND...60MPH
$$
TMA2 follow-up statements
879
WWUS51 KBUF 081715
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
115 PM EDT Thu Aug 8 2019
NYC051-081725-
/O.CAN.KBUF.SV.W.0070.000000T0000Z-190808T1745Z/
Livingston NY-
115 PM EDT Thu Aug 8 2019
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LIVINGSTON COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.
LAT...LON 4258 7748 4291 7742 4292 7698 4287 7696
4286 7698 4276 7697 4276 7731 4267 7737
4258 7737
TIME...MOT...LOC 1715Z 266DEG 32KT 4292 7727 4254 7739
$$
NYC069-081745-
/O.CON.KBUF.SV.W.0070.000000T0000Z-190808T1745Z/
Ontario NY-
115 PM EDT Thu Aug 8 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR CENTRAL ONTARIO COUNTY...
At 115 PM EDT, severe thunderstorms were located along a line
extending from near Canandaigua to near Naples, moving east at 35
mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Geneva, Canandaigua, Bristol, Bloomfield, Naples, Rushville, Gorham,
Seneca Lake State Park, Holcomb and Seneca Castle.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4258 7748 4291 7742 4292 7698 4287 7696
4286 7698 4276 7697 4276 7731 4267 7737
4258 7737
TIME...MOT...LOC 1715Z 266DEG 32KT 4292 7727 4254 7739
HAIL...0.75IN
WIND...60MPH
$$
TMA301
WWUS51 KBUF 081744
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
144 PM EDT Thu Aug 8 2019
NYC069-081754-
/O.EXP.KBUF.SV.W.0070.000000T0000Z-190808T1745Z/
Ontario NY-
144 PM EDT Thu Aug 8 2019
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ONTARIO COUNTY WILL
EXPIRE AT 145 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.
LAT...LON 4258 7748 4291 7742 4292 7698 4287 7696
4286 7698 4276 7697 4276 7731 4267 7737
4258 7737
TIME...MOT...LOC 1744Z 260DEG 21KT 4295 7706 4257 7718
$$
TMAWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 10:12 AM EDT, 2 hours 26 minutes earlier.
Area forecast discussion, Aug 8, 10:12 AM EDT, 2 hours 26 minutes before
Area Forecast Discussion
National Weather Service Buffalo NY
1012 AM EDT Thu Aug 8 2019
.SYNOPSIS...
A cold front will exit to the east of our region this evening,
ending the widespread storms and marking the beginning of a cooler
and less humid weather pattern. A few lake enhanced rain showers are
possible tonight east of Lake Erie, with more widespread lake effect
rain to the southeast of the Lakes Friday night and Saturday
morning. A much less humid airmass will remain over our region
through the weekend, with air temperatures at or just below normal.
&&
.NEAR TERM /THROUGH TONIGHT/...
Visible satellite imagery and regional radars display the line of
convection now nearing our western zones, with lightning activity
increasing as the airmass continues to destabilize. We have speed up
the timing of the storms a bit, especially across western areas
where convection will enter WNY before noontime. Our entire region
will now be within a slight risk for severe storms through the late
afternoon.
With respect to thunderstorm threats...these will be two-fold...
with the first of these coming in the form of strong/damaging wind
gusts given the amount of available instability...steepening low and
mid-level lapse rates...and strengthening wind profiles/deep layer
shear. The other will be in the form of hail...as suggested by the
relatively low freezing levels (around 12 kft) and wet bulb zero
heights (of 9-11 kft) that will be in place. The latest SPC Day 1
convective outlook this late morning has expanded the Slight Risk
area to cover our entire region given the above threats.
Outside of the convection it will also turn increasingly breezy
in the hours surrounding the frontal passage today...with the
strongest winds found to the lee of Lake Erie...where gusts of 30
mph or so will be possible. Otherwise it will remain warm and
moderately humid...with highs ranging from the mid/upper 70s across
far western New York to the upper 70s and lower 80s further east...
where sunshine will last longer and heating will be maximized out
ahead of the cold front.
Following the passage of the cold front...the convection will
generally diminish to some leftover showers from west to east this
afternoon and this evening...before ending altogether overnight.
This said...there could be a brief resurgence in scattered shower
activity southeast of Lake Erie for a short time tonight...as
lingering low/mid level moisture...850 mb temps falling to around
+11C...and the passage of a trailing shortwave may be just enough to
trigger a brief round of lake enhanced rain showers. Otherwise it
will turn notably cooler and less humid in the wake of the
front...with overnight lows settling into the mid 50s to lower
60s...and dewpoints dropping off to a few degrees below the above
mentioned values.
&&
.SHORT TERM /FRIDAY THROUGH SUNDAY NIGHT/...
A longwave trough centered over Hudson Bay and the eastern third of
Canada at the start of this three day period will push off to the
Labrador Sea by the end of the weekend. This will lead to a
deamplification of the mid level flow along the northern tier of the
Lower 48...so that our below normal temperatures Friday and Saturday
will start to moderate for Sunday and beyond. While the relatively
cool airmass will support minimal lake effect rain shower activity
southeast of Lake Ontario...the vast majority of this time frame will
be precipitation free. The day to day details...
A longwave trough centered over eastern Canada on Friday will place
a deep cyclonic flow over our forecast area. This will keep weak
cold advection in place while also directing some mid level energy
over the region. While the bulk of the forecast area will be rain
free...the combination of the steepening low level lapse rates (9
deg c/km through H75) within the relatively cool airmass and passage
of the aforementioned shortwave could support a shower away from the
lakes. Its not out of the question that this low topped 'convection'
could allow for an isolated thunderstorm over the North Country...so
will add that potential to continuity. Otherwise it will become
rather breezy across the region with wind gusts approaching 30 mph.
Afternoon temperatures will range from the mid 70s across the lake
plains to near 70 elsewhere.
Any diurnally driven spotty convection and stronger wind gusts will
quickly die off Friday evening. While this will leave clear to
partly cloudy skies across much of the forecast area...H85 temps
dropping to between 6 and 8c will establish 500-1000 j/kg of CAPE
over the warm lakes. The greater instability will be found over Lake
Ontario (due to cooler airmass) where the cap will be a little
higher (9kft versus 6kft) and there should be a little more synoptic
moisture than what will be found over Lake Erie. These factors...
along with a likely upstream connection to Georgian Bay...favor some
lake effect rain showers for Oswego county and possibly for the
counties surrounding it. Am impressed enough to raise chc pops to
low likely. Have also raised pops to slgt chc for a larger area SE
of Lake Erie. Otherwise it will be a cool night with mins in the 50s
away from the immediate lake shores. Its not out of the question
that some 40s could even be reported in the normally cooler spots of
the Srn Tier and across parts of Lewis county.
While some disorganized lake effect rain showers will be likely over
Oswego county early Saturday morning...the powerful diurnal mixing
induced by a mid August sun will break apart this nuisance activity
by mid morning. Otherwise...the deep longwave trough will exit
across the St Lawrence Valley during the day Saturday...while a
large surface high over the Upper Mid West will make its way across
Lake Erie. While this will support fair dry weather over the bulk of
our region...a cyclonic flow aloft and relatively cool low level air
will still be in place. There is even the risk for another shortwave
dropping across the region within the cyclonic flow...so will use
slgt to low chc pops for the Eastern Lake Ontario region to cover
the potential for the odd afternoon shower. For what its worth...
this slightly more pessimistic scenario is most obvious in the ECMWF
guidance.
The core of the surface high will pass to our south Saturday night.
This will support a cool uneventful night across the region...
although a spotty lake induced showers cannot be totally rules out
over the Tug Hill as the low level flow backs to around 270. Mins
will be very close to those from Friday night.
High pressure over the Mid Atlantic region should provide us with a
fairly nice day to end the weekend. It will be a little warmer on
Sunday as weak warm advection will help to boost afternoon
temperatures to between 75 and 80 for most areas. The only possible
blemish will be the low chc for an afternoon shower or thunderstorm
over the North Country. A cold front will be bearing down on the
region from the Ottawa valley...and while this front will stay to
our north through the daylight hours...a pre frontal trough could
support some afternoon convection.
General confidence in the forecast will drop off Sunday night...as
there are timing issues between the various operational and ensemble
packages as to the speed of the next cold front. Will thus use slgt
to low chc pops to cover the potential for some nuisance showers.
&&
.LONG TERM /MONDAY THROUGH WEDNESDAY/...
The heart of a persistent sub tropical ridge will remain over the
southern plains and Lower Mississippi Valley during this period...
while a fast...low amplitude flow will stretch from one coast to the
other along the Canadian border. This will keep significant heat and
humidity to our south...while temperatures will average within a
couple degrees of normal over our region.
While there is strong consensus between the various ensemble
packages as to the overall pattern over the continent (see abv)...
the same cannot be said as to the low level details.
For example...a weak cold front is forecast to settle south through
our region either Sunday night or Monday. While the front is not
expected to generate widespread shower coverage or significant
QPF...the difference could be at the expense of a beautiful start to
the weekend versus a showery one.
The next uncertainty will be as to the track of a robust shortwave
on Tuesday. Some guidance packages take the feature south of us
while others track it directly over us. Will maintain low chc pops
for now until this becomes more clear.
Generally fair weather should then move in for mid week..as ridging
should move through the Lower Great Lakes in the wake of the
aforementioned shortwave.
&&
.AVIATION /14Z THURSDAY THROUGH MONDAY/...
Narrow low level ridging and drier air will bring dry VFR conditions
to most locations through the first part of this morning. The
exceptions to this will be across the Southern Tier and North
Country...where some patchy fog and/or lower stratus will result in
some reductions to MVFR/IFR...with these affecting the KJHW/KART
terminals. Any such reductions will then dissipate by mid morning as
daytime heating helps to mix out the fog/lower stratus.
This afternoon and early this evening low pressure will pivot its
trailing cold front across our area from west to east...with the
frontal passage accompanied by a round of fairly widespread showers
and thunderstorms. Some of these may produce locally strong gusty
winds and hail...as well as reductions to MVFR or even IFR.
Following the frontal passage...cooler and drier air will build
into the region and bring a return to mainly dry/VFR conditions
later this afternoon and tonight...though a few more showers and
spotty MVFR will remain possible east and southeast of the lakes.
Outlook...
Friday through Saturday...Mainly VFR with a chance of showers
east and southeast of Lake Ontario.
Sunday and Monday...Mainly VFR with a chance of showers.
&&
.MARINE...
A fairly strong cold front will approach the region this morning...
then will cross the area between this afternoon and early this
evening. Out ahead of the front moderately brisk southwesterlies
will develop...before veering to westerly following the passage of
the front this afternoon and this evening. While the winds will
quickly diminish this evening on Lake Erie...fairly brisk westerlies
will continue through tonight and Friday on Lake Ontario...before
diminishing to west-northwesterly and slackening Friday night.
With all of this in mind...Small Craft Advisories either remain
in effect...or have been issued as outlined below.
In addition...a much cooler airmass will pour across the Lower Great
Lakes in the wake of the front and could favor the development of
waterspouts. This will particularly be the case from later Friday
night into Saturday morning on Lake Ontario...when some lake effect
rain showers may be present...and when winds in the lowest 5kft will
also lighten and become more favorable for the low-level convergence
necessary to support waterspout formation.
&&
.TIDES/COASTAL FLOODING...
A cold front will cross the Lower Great Lakes, exiting to the
east of the Lakes by this evening. Behind this front a period
of brisk westerly to west- northwesterly winds (to as high as
20-25 knots) will occur through Friday night across Lake
Ontario. In turn...these will generate a prolonged period of
enhanced wave action over portions of southeastern and eastern
Lake Ontario... which in turn will likely lead to increased
lakeshore flooding and erosion along the Lake Ontario shorelines
of Wayne...Cayuga... Oswego...and Jefferson counties. A lake
shore flood warning continues.
While winds and wave action will also increase across the western
half of Lake Ontario...winds there will be predominantly westerly
between tonight and Friday night...with wind speeds likely already
diminishing by the time any directional shift to west-northwesterly
takes place Friday night. With this in mind...the highest wave
action should remain a bit further offshore of the Niagara...
Orleans...and Monroe county shorelines...thereby resulting in a
lower risk of lakeshore flooding for these areas.
Finally...brisk southwesterly to westerly winds will precede and
follow the passage of the cold front across Lake Erie through
this evening...resulting in a period of dangerous swimming
conditions. With this in mind...a Beach Hazards Statement
remains in effect to help highlight these.
&&
.BUF WATCHES/WARNINGS/ADVISORIES...
NY...Lakeshore Flood Warning from 6 PM this evening to 5 AM EDT
Saturday for NYZ004>007.
Beach Hazards Statement from 2 PM this afternoon to 9 PM EDT
this evening for NYZ010-019-085.
MARINE...Small Craft Advisory until 9 PM EDT this evening for LEZ020-
040-041.
Small Craft Advisory from 2 PM this afternoon to 8 AM
EDT Saturday for LOZ042-043.
Small Craft Advisory from 6 PM this evening to 8 AM EDT
Saturday for LOZ044-045.
&&
SYNOPSIS...Thomas
NEAR TERM...JJR/Thomas
SHORT TERM...RSH
LONG TERM...RSH
AVIATION...JJR
MARINE...JJR
TIDES/COASTAL FLOODING...JJR/ThomasHazardous weather outlook, Aug 8, 5:00 AM EDT, 7 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Buffalo NY 500 AM EDT Thu Aug 8 2019 NYZ010-019-085-090930- Northern Erie-Chautauqua-Southern Erie- 500 AM EDT Thu Aug 8 2019 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH THIS EVENING... This Hazardous Weather Outlook is for portions of western New York. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Beach Hazards Statement. In addition, a cold front will generate fairly widespread showers and thunderstorms as it pushes across the region this afternoon. A few of the storms could be strong to severe...with strong wind gusts and hail the primary severe weather threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .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>003-011>014-020-021-090930- Niagara-Orleans-Monroe-Genesee-Wyoming-Livingston-Ontario- Cattaraugus-Allegany- 500 AM EDT Thu Aug 8 2019 This Hazardous Weather Outlook is for portions of western New York. .DAY ONE...Today and tonight. A cold front will generate fairly widespread showers and thunderstorms as it pushes across the region this afternoon and evening. A few of the storms could be strong to severe...with strong wind gusts and hail the primary severe weather threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .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 NYZ004>007-090930- Wayne-Northern Cayuga-Oswego-Jefferson- 500 AM EDT Thu Aug 8 2019 ...LAKESHORE FLOOD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 5 AM EDT SATURDAY... This Hazardous Weather Outlook is for portions of western and north central New York. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Lakeshore Flood Warning. In addition, a cold front will generate fairly widespread showers and thunderstorms as it pushes across the region this afternoon and evening. A few of the storms could be strong to severe...with strong wind gusts and hail the primary severe weather threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Lakeshore Flood Warning. .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 NYZ008-090930- Lewis- 500 AM EDT Thu Aug 8 2019 This Hazardous Weather Outlook is for portions of central New York. .DAY ONE...Today and tonight. A cold front will generate fairly widespread showers and thunderstorms as it pushes across the region this afternoon and evening. A few of the storms could be strong to severe...with strong wind gusts and hail the primary severe weather threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .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-LOZ030-042>045-062>065-SLZ022-024-090930- Upper Niagara River and Buffalo Harbor- Lake Erie nearshore waters from Ripley to Dunkirk- Lake Erie nearshore waters from Dunkirk to Buffalo- 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- 500 AM EDT Thu Aug 8 2019 This Hazardous Weather Outlook is for the New York waters of Lake Erie, Lake Ontario, and the Saint Lawrence River. .DAY ONE...Today and tonight. A cold front will generate fairly widespread showers and thunderstorms as it pushes across the region this afternoon and evening. A few of the storms could be strong to severe...with strong wind gusts and hail the primary severe weather threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. There is a chance of waterspouts Friday night and Saturday morning over Lakes Erie and Ontario. .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 JJR
In the hours before
Special weather statement, Aug 8, 11:39 AM EDT, 59 minutes before
Special Weather Statement National Weather Service Buffalo NY 1139 AM EDT Thu Aug 8 2019 NYZ020-085-081615- Cattaraugus-Southern Erie- 1139 AM EDT Thu Aug 8 2019 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL CATTARAUGUS AND SOUTH CENTRAL ERIE COUNTIES... At 1139 AM EDT, radar indicated strong thunderstorms were located along a line extending from near Springville to 10 miles northwest of Allegany State Park. Movement was east at 45 mph. Wind gusts up to 50 mph are possible with these storms. Locations impacted include... Salamanca, Allegany State Park, Springville, Ashford, Franklinville, Ashford Hollow, Great Valley, New Albion, Carrollton, Randolph, Napoli, Little Valley, Delevan, East Otto, Cattaraugus, Otto, Humphrey, East Randolph, Ellicottville and Vandalia. This includes Interstate 86 between exits 17 and 23. LAT...LON 4251 7835 4208 7858 4204 7906 4251 7879 TIME...MOT...LOC 1539Z 265DEG 40KT 4249 7874 4214 7893 Levan
Local storm report, Aug 8, 11:45 AM EDT, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1145 AM EDT THU AUG 08 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 AM TSTM WND DMG 1 S LAONA 42.41N 79.30W
08/08/2019 CHAUTAUQUA NY LAW ENFORCEMENT
TREES AND LINES DOWN ON ROUTE 60 AT ROUTE 83
&&
EVENT NUMBER BUF1901427
FRIESLocal storm report, Aug 8, 11:52 AM EDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1152 AM EDT THU AUG 08 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1123 AM TSTM WND DMG MEDINA 43.22N 78.39W
08/08/2019 ORLEANS NY LAW ENFORCEMENT
MULTIPLE REPORTS OF TREES AND WIRES DOWN
&&
EVENT NUMBER BUF1901428
FRIESLocal storm report, Aug 8, 12:23 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1223 PM EDT THU AUG 08 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1150 AM TSTM WND DMG BROCKPORT 43.21N 77.94W
08/08/2019 MONROE NY FIRE DEPT/RESCUE
TREE DOWN BLOCKING THE ROAD AT BROCKPORT MIDDLE SCHOOL.
&&
EVENT NUMBER BUF1901429
DPKSpecial weather statement, Aug 8, 12:24 PM EDT, 14 minutes before
Special Weather Statement National Weather Service Buffalo NY 1224 PM EDT Thu Aug 8 2019 NYZ012-013-020-021-081700- Cattaraugus-Allegany-Livingston-Wyoming- 1224 PM EDT Thu Aug 8 2019 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT EASTERN WYOMING... SOUTHEASTERN CATTARAUGUS...LIVINGSTON AND ALLEGANY COUNTIES... At 1224 PM EDT, radar indicated strong thunderstorms were located along a line extending from Mount Morris to near St. Bonaventure. Movement was east at 35 mph. Wind gusts up to 50 mph are possible with these storms. Locations impacted include... Olean, Geneseo, Wellsville, Letchworth State Park, Allegany State Park, Perry, Mount Morris, Conesus, Allegany, Belfast, Cuba, Rushford, Portageville, Weston Mills, St. Bonaventure, Houghton, Groveland, Caneadea, Hinsdale and Friendship. This includes the following highways... Interstate 390 between exits 6 and 9. Interstate 86 between exits 23 and 32. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with these storms, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4288 7760 4202 7796 4204 7868 4286 7799 TIME...MOT...LOC 1624Z 286DEG 31KT 4274 7789 4203 7847 Levan
Local storm report, Aug 8, 12:34 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1234 PM EDT THU AUG 08 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1203 PM TSTM WND DMG 3 SSE SPENCERPORT 43.15N 77.79W
08/08/2019 MONROE NY FIRE DEPT/RESCUE
POWERLINES DOWN ON ROBIN CRESCENT. TIME ESTIMATED
&&
EVENT NUMBER BUF1901430
DPKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 10:41 PM EDT | Beach Hazards Statement | BUF | Chautauqua, Erie | 22 hr |
| Aug 7, 10:42 PM EDT | Small Craft Advisory | BUF | 71 hr | |
| Aug 8, 4:33 AM EDT | Lakeshore Flood Warning | BUF | Cayuga, Jefferson, Oswego, Wayne | 65 hr |
| Aug 8, 10:16 AM EDT | Special Marine Warning | BUF | 59 min | |
| Aug 8, 10:27 AM EDT | Special Marine Warning | BUF | 63 min | |
| Aug 8, 10:35 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 40 min |
| Aug 8, 10:39 AM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 66 min |
| Aug 8, 10:48 AM EDT | Severe Thunderstorm Warning | BUF | Erie | 42 min |
| Aug 8, 10:58 AM EDT | Special Marine Warning | BUF | 62 min | |
| Aug 8, 11:15 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans | 60 min |
| Aug 8, 11:39 AM EDT | Special Weather Statement | BUF | Cattaraugus | 36 min |
| Aug 8, 11:45 AM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Erie, Wyoming | 36 min |
| Aug 8, 11:50 AM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Orleans | 55 min |
| Aug 8, 11:58 AM EDT | Special Marine Warning | BUF | 62 min | |
| Aug 8, 12:20 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario, Wayne | 55 min |
| Aug 8, 12:24 PM EDT | Special Weather Statement | BUF | Allegany, Livingston | 36 min |
| Aug 8, 12:30 PM EDT | Special Marine Warning | BUF | 60 min | |
| Aug 8, 12:53 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 54 min |
| Aug 8, 1:04 PM EDT | Special Marine Warning | BUF | 86 min | |
| Aug 8, 1:06 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 54 min |
| Aug 8, 1:50 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Jefferson, Oswego | 70 min |
| Aug 8, 3:01 PM EDT | Special Weather Statement | BUF | Genesee | 44 min |
| Aug 8, 4:23 PM EDT | Special Weather Statement | BUF | Erie | 37 min |
| Aug 8, 4:50 PM EDT | Special Weather Statement | BUF | Wayne | 40 min |
| Aug 8, 5:12 PM EDT | Special Weather Statement | BUF | Erie | 48 min |
Nearby
Severe Thunderstorm Warnings in New York, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.