Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 87, NWS Albany, NY

July 8, 20177 counties in New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 8, 2017, 10:37 AM EDT for 7 counties in New York. It was in force for 53 min. 2 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
Jul 8, 2017, 10:37 AM EDT (14:37 UTC)
Expired
Jul 8, 2017, 11:30 AM EDT
In force
53 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Albany County, NY, Montgomery County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Washington County, NY

The radar

The Albany radar (KENX), 31 km from the middle of the area, began a volume at 14:41 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

TimeReportWhereRemark
Jul 8, 11:09 AM EDTTSTM WND DMG1 W Guilderland, NYTREE LIMBS BLOCKING ROADWAY
Jul 8, 11:17 AM EDTTSTM WND DMGTroy, NYDOWNED TREE.

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 2 storm reports to this severe thunderstorm warning; the first came 32 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 nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 2.6 hours before the alert went out and 10 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2017-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 160 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2017-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
160 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

966 
WUUS51 KALY 081437
SVRALY
NYC001-057-083-091-093-095-115-081530-
/O.NEW.KALY.SV.W.0087.170708T1437Z-170708T1530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
1037 AM EDT SAT JUL 8 2017

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Schenectady County in east central New York...
  Northern Albany County in east central New York...
  Southeastern Saratoga County in east central New York...
  East central Schoharie County in east central New York...
  Southern Washington County in east central New York...
  Eastern Montgomery County in eastern New York...
  Rensselaer County in east central New York...

* Until 1130 AM EDT

* At 1036 AM EDT, severe thunderstorms were located along a line
  extending from near Pattersonville-Rotterdam Junction to Delanson
  to near Schoharie, moving east at 40 mph.

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

  SOURCE...Radar indicated. 

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to trees, and power lines. 

* Severe thunderstorms will be near, 
  Rotterdam Junction and Pattersonville-Rotterdam Junction around 
  1040 AM EDT. 
  Duanesburg around 1045 AM EDT. 
  Schenectady, Scotia, Niskayuna and Berne around 1050 AM EDT. 
  Rotterdam, East Glenville, Alplaus and Burnt Hills around 1055 AM 
  EDT. 
  Clifton Park, Altamont and Country Knolls around 1100 AM EDT. 
  Voorheesville and Round Lake around 1105 AM EDT. 
  Albany, Cohoes, Mechanicville, Latham and Guilderland around 1110 
  AM EDT. 
  Troy, Colonie, Delmar, Green Island and Waterford around 1115 AM 
  EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Hail and damaging winds and continuous cloud to ground lightning is 
occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany

&&

LAT...LON 4257 7449 4272 7427 4289 7417 4304 7327
      4284 7328 4283 7329 4279 7329 4260 7333
TIME...MOT...LOC 1436Z 260DEG 35KT 4284 7411 4273 7418 4263 7433 

HAIL...1.00IN
WIND...60MPH
 
$$

BGM
2 follow-up statements
623 
WWUS51 KALY 081506
SVSALY

Severe Weather Statement
National Weather Service Albany NY
1106 AM EDT SAT JUL 8 2017

NYC057-095-081515-
/O.CAN.KALY.SV.W.0087.000000T0000Z-170708T1530Z/
Schoharie NY-Montgomery NY-
1106 AM EDT SAT JUL 8 2017

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SCHOHARIE AND
EASTERN MONTGOMERY COUNTIES IS CANCELLED...

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

LAT...LON 4258 7418 4273 7407 4292 7399 4304 7327
      4284 7328 4283 7329 4279 7329 4260 7333
TIME...MOT...LOC 1505Z 260DEG 35KT 4289 7375 4278 7382 4268 7397 

$$

NYC001-083-091-093-115-081530-
/O.CON.KALY.SV.W.0087.000000T0000Z-170708T1530Z/
Schenectady NY-Albany NY-Saratoga NY-Washington NY-Rensselaer NY-
1106 AM EDT SAT JUL 8 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT
FOR EASTERN SCHENECTADY...NORTHERN ALBANY...SOUTHEASTERN SARATOGA...
SOUTHERN WASHINGTON AND RENSSELAER COUNTIES...

At 1105 AM EDT, severe thunderstorms were located along a line
extending from near Country Knolls to near Colonie to near
Voorheesville, moving east at 40 mph.

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

SOURCE...Radar indicated. 

IMPACT...Minor damage to vehicles is possible. Expect wind damage to 
         trees, and power lines. 

These severe storms will be near...
  Mechanicville, Round Lake and Country Knolls around 1110 AM EDT. 
  Troy, Cohoes, Green Island and Waterford around 1115 AM EDT. 
  Loudonville and Center Brunswick around 1120 AM EDT. 
  East Greenbush, Watervliet, Rensselaer, Latham and Menands around 
  1125 AM EDT. 
  Hoosick Falls, Grafton, Cambridge, Wynantskill, West Sand Lake and 
  Averill Park around 1130 AM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4258 7418 4273 7407 4292 7399 4304 7327
      4284 7328 4283 7329 4279 7329 4260 7333
TIME...MOT...LOC 1505Z 260DEG 35KT 4289 7375 4278 7382 4268 7397 

HAIL...1.00IN
WIND...60MPH
 
$$

BGM
466 
WWUS51 KALY 081528
SVSALY

Severe Weather Statement
National Weather Service Albany NY
1128 AM EDT SAT JUL 8 2017

NYC001-083-091-093-115-081538-
/O.EXP.KALY.SV.W.0087.000000T0000Z-170708T1530Z/
Schenectady NY-Albany NY-Saratoga NY-Washington NY-Rensselaer NY-
1128 AM EDT SAT JUL 8 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SCHENECTADY...NORTHERN
ALBANY...SOUTHEASTERN SARATOGA...SOUTHERN WASHINGTON AND RENSSELAER
COUNTIES WILL EXPIRE AT 1130 AM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However heavy rain
is still possible with these thunderstorms.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Albany.

LAT...LON 4258 7418 4273 7407 4292 7399 4304 7327
      4284 7328 4283 7329 4279 7329 4260 7333
TIME...MOT...LOC 1528Z 260DEG 35KT 4293 7346 4282 7353 4272 7368 

$$

BGM

What 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 Albany, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 7:07 AM EDT, 3 hours 30 minutes earlier.

Area forecast discussion, Jul 8, 7:07 AM EDT, 3 hours 30 minutes before
Area Forecast Discussion
National Weather Service Albany NY
707 AM EDT Sat Jul 8 2017

.SYNOPSIS...
A cold front and a strong upper level disturbance will
bring showers and isolated to scattered strong thunderstorms to the
region today.  A cooler and drier air mass will build into eastern
New York and western New England tonight from the Midwest. High
pressure will yield fair, dry, and less humid weather to close the
weekend, as another cold front will bring isolated to scattered
showers and thunderstorms back into the region to open the week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
As of 641 AM EDT...The cold front continues to slowly move east
from the eastern Great lakes Region and St Lawrence River
Valley. Low pressure is moving north of Massena,NY based on the
latest RAP. Clusters of showers and thunderstorms have formed
ahead of this wave and the cold front with some wind damage
upstream over western NY and northern NY from bowing segments. A
few thunderstorms have moved into the southern Adirondacks and
Mohawk Valley, but have weakened a bit due to some CIN in place
based on the SPC RAP Mesoanalysis, and less instability. A few
SPSs have been issued with these storms with wind gusts to 40
mph. The radar trends line up fairly well with the 3-km HRRR and
the 3-km NAM. The strongest cells in the base REF products may
actually occur from the Capital Region south and east later in
the morning into the afternoon. Some retooling of the POPs was
done and adjustments to Temps. The patchy fog was kept in until
8-9 am.

Overall, an active day is setting up with the cold front and a
strong short-wave trough swinging across the region in the late
morning into the afternoon. The latest SPC Day 1 Outlook has the
Hudson River Valley eastward in a Marginal Risk. This looks
pretty good at this point, as some strong to potentially severe
thunderstorms are possible depending on the amount of
instability over the forecast area.

The first issue to contend with this morning is the low stratus
and patchy fog that has formed over a large portion of the
forecast area, especially from the Hudson River Valley into
western New England. Abundant moisture in the boundary layer and
recent wet ground is allowing the formation of the patchy fog
and stratus. The fog and stratus should gradually burn off in
the late morning.

Line or clusters of showers and thunderstorms should move into
the western Adirondacks and the Mohawk Valley between 5 am and
8 am. Sfc dewpoints will be in the 60s and the latest NAM has
SBCAPEs in the 1000-1500 J/kg range in the late morning into the
early afternoon. MUCAPEs are also in a broader range of
500-1500 J/kg. The 0-6 km bulk shear increases to 40-55 kts in
the late morning into the afternoon with a potent H500 jet
streak /50-60 kts/ moving over head. The forecast area gets
near the left front quad of the jet streak with decent height
falls. The mid-level lapse rates on the NAM only lower to
5.5-6.25 C/km, and the wet-bulb zero heights are in the 9-11
kft AGL range. The better shear is in the 2-6 km layer. Also,
the forecast area is near the right entrance of an H250 jet
streak of 90-100 kts. The upper level dynamics are rather
impressive. The PWATS on the NAM and the GFS are in the 1-1.5
inch range.

The 00Z GFS has an abundant amount of MUCAPE in the
1000-2500+J/kg range over the forecast area, which seems a bit
overdone. SBCAPES are similar to the NAM in the 1000-1500+ J/kg
range with dewpts mainly in the 60s. The mid level lapse rates
are slightly steeper on the GFS. The most active period looks
to be between 15Z-21Z with multi-cells and multi-cell clusters
and lines with gusty winds and hail the main threats. We do
think there could be some severe thunderstorms from the Hudson
River Valley/Capital Region south and east with bowing segments
producing damaging winds and possibly some marginal 1" hail. We
have added small hail, gusty winds, and heavy rainfall to the
forecast grids in the Marginal Risk area. Flash flooding is not
expected to be a major threat, but if convection trains or
back builds and moves over areas that had heavy rain yesterday,
then an isolated flash flood can not be ruled out.

The shower and thunderstorm coverage should decrease north and
west of the Capital Region by the early afternoon with cooler,
drier and breezy conditions working into the region. The showers
and thunderstorms will linger from the Capital Region/southern
VT south and east into the early to mid pm with some strong to
severe thunderstorms possible. This scenario is supported by
some of the CAMs including the latest 3-km HRRR and the 3-km
NAM. The cold front should make it through most of the region by
6 pm with the winds shifting to the west to northwest, and
drier air starting to filter in.

Highs today will be in the mid 70s to lower 80s in the valley
areas, with mid 60s to mid 70s over the mountains.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH MONDAY NIGHT/...
Tonight...the showers dwindle over the forecast area especially
over the southern Adirondacks, and southern Greens with the
passage of the short-wave. High pressure will begin to build in
from the Midwest. Dewpoints fall back into the upper 40s to 50s
across the region. Some patchy fog may form where the winds
decouple, and with clearing skies and recent wet ground. Lows
will be in the 50s with a few upper 40s over the eastern
Catskills and southern Adirondacks.

Sunday...Cyclonic flow persists over the region with a weak
disturbance increasing clouds over the northern zones. There
maybe and isolated shower or sprinkle over the southern
Adirondacks. High pressure will be building in from the Ohio
Valley with fair and less humid conditions over the entire
region. Highs will be a shade below normal with mid 70s to
around 80F in the valleys, and mid 60s to lower 70s over the
mountains. It will be breezy with west to northwest winds of 10
to 15 mph.

Sunday night into Monday...Another cold front in the cyclonic
flow with the broad upper level trough over southeastern Canada
and the Northeast will approach the region. Isolated to
scattered showers are possible north and west of the Capital
Region Sunday night. The NAM/GFS/ECMWF are not in good agreement
on the timing of the front sagging southward on Monday. The
moisture convergence looks weak with the boundary on the
NAM/GFS, and the sfc ridge may hang on south of the region most
of the day.  There is a slight to low chance of a shower or
isolated thunderstorm across the forecast area. The better
synoptic forcing is over the northern zones with the boundary,
and some short-wave energy pivoting around the upper low. Lows
will be cool in the 50s with highs in the 70s to lower 80s with
a few mid 80s over the mid-Hudson Valley.

Monday night...The cold front may become stationary over the
region, and then lift back northward as a warm front, as a
short-wave approaches from the Midwest and the lower Great Lakes
Region. A chance of showers and a slight chc of thunderstorms
was kept in the forecast with temps a bit milder in the upper
50s to mid 60s.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...
The long-term period will be active with multiple short waves
rotating around a long wave trough with the exception of brief
ridging on Wednesday.

Tuesday-Wednesday morning...A cold front will push through the area
Tuesday afternoon and evening. This will bring chances for showers
and thunderstorms to the area. There is the potential for some of
these storms to become strong Tuesday afternoon with ample
CAPE/LIs/TTs suggested by the GFS/ECMWF. However, mid level lapse
rates are not very steep, on the order of 5-6.5 deg C/km being
suggested by the GFS and ECMWF.

Wednesday through Saturday night...Following the frontal passage,
brief ridging and cooler/less humid air builds into the region. This
should result in dry conditions with seasonable temperatures
Wednesday afternoon. This reprieve from the wet weather appears to
be short-lived as pieces of upper energy pass through the area
Thursday through Saturday night, bringing additional chances for
showers and thunderstorms through the end of the work week and into
the weekend.

Temperatures throughout the period will be seasonable with highs in
the upper 70s and lower 80s and overnight lows in the 50s and 60s

&&

.AVIATION /12Z SATURDAY THROUGH WEDNESDAY/...
Variable conditions exist across the area this morning where
low stratus or fog has developed. This low stratus and fog
should burn off quickly this morning, allowing for VFR
conditions to return for most of the day. Additionally, an area
of showers and scattered thunderstorms, which formed during the
early morning hours, are currently tracking through the
Adirondacks and the Lake George-Saratoga regions. These showers
may impact KGFL this morning before additional showers and
thunderstorms track through the area later this afternoon with
an approaching cold front and strong upper level disturbance.
Periods of MVFR/IFR will be possible within any
showers/thunderstorms. The cold front is expected to exit the
region by 00Z/Sun, allowing for skies to gradually clear
overnight tonight.

Have introduced fog/BR towards the end of the TAF period as
skies are expected to clear tonight in addition to a potentially
wet ground.

Winds will be light from the south to southwest at less than 8
KT through this morning. Winds will then become west to
northwest and increase to 8-12 KT after the cold front passes
this afternoon, with some gusts of 20-25 KT possible.

Outlook...

Sunday Night: No Operational Impact. NO SIG WX.
Monday: Low Operational Impact. Slight Chance of SHRA...TSRA.
Monday Night: Moderate Operational Impact. Chance of SHRA...TSRA.
Tuesday: High Operational Impact. Likely SHRA...TSRA.
Tuesday Night: Moderate Operational Impact. Chance of SHRA...TSRA.
Wednesday: No Operational Impact. NO SIG WX.
Wednesday Night: Moderate Operational Impact. Chance of SHRA...TSRA.
Thursday: Moderate Operational Impact. Chance of SHRA...TSRA.

&&

.FIRE WEATHER...
A cold front and a strong upper level disturbance will
bring showers and isolated to scattered strong thunderstorms to the
region today.  A cooler and drier air mass will build into eastern
New York and western New England tonight from the Midwest. High
pressure will yield fair, dry, and less humid weather to close the
weekend, as another cold front will bring isolated to scattered
showers and thunderstorms back into the region for Monday.

The RH values will only lower to 50 to 75 percent this
afternoon, and then recover 85 to 100 percent tonight. In the
drier air mass, the RH values will drop to 35 to 55 percent on
Sunday.

South to southwest winds at 5 to 15 mph this morning will shift
into the west to northwest, and increase to 10-20 mph by the
afternoon. The winds will be west at 5 mph or less tonight, and
then increase from the west at 5 to 15 mph on Sunday.

Winds will be stronger, and variable in direction in and near
any thunderstorms.

&&

.HYDROLOGY...
No widespread problems are expected on the main stem rivers, but
some locally heavy rainfall is possible today.

Scattered showers and thunderstorms will occur today associated
with a cold front and an upper level disturbance passing across
the region. Additional areal rainfall amounts are expected to
be generally between the one tenth and one half inch range
through today, although locally higher amounts could occur,
especially where any brief training and/or backbuilding of
showers/storms materialize. This could lead to ponding of water
in low lying, poor drainage and urban areas and also an isolated
flash flood.

Mainly dry conditions are expected Saturday night and Sunday,
with the threat for additional isolated to scattered
showers/thunderstorms increasing again Monday into Monday night
with variable rainfall amounts depending on where any
thunderstorms occur.

A series of disturbances and including a cold front will bring
greater chances of showers and thunderstorms on Tuesday with
some locally heavy rainfall possible.

For details on specific area rivers and lakes, including observed
and forecast river stages and lake elevations, please visit the
Advanced Hydrologic Prediction Service /AHPS/ graphs on our
website.

&&

.ALY WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
MA...None.
VT...None.

&&

SYNOPSIS...Wasula
NEAR TERM...Wasula
SHORT TERM...Wasula
LONG TERM...JVM
AVIATION...KL/JVM
FIRE WEATHER...KL/Wasula
HYDROLOGY...KL/Wasula
Hazardous weather outlook, Jul 8, 4:30 AM EDT, 6 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Albany NY
430 AM EDT Sat Jul 8 2017

CTZ001-013-MAZ001-025-NYZ041>043-049-050-052>054-059>061-064>066-083-
084-VTZ013>015-091100-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Saratoga-Northern Warren-
Northern Washington-Eastern Schenectady-Southern Saratoga-
Eastern Albany-Western Rensselaer-Eastern Rensselaer-Eastern Greene-
Western Columbia-Eastern Columbia-Eastern Ulster-Western Dutchess-
Eastern Dutchess-Southeast Warren-Southern Washington-Bennington-
Western Windham-Eastern Windham-
430 AM EDT Sat Jul 8 2017

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, the Lake George Saratoga Region, the eastern
Mohawk Valley, the Capital District, Mid Hudson Valley and the Taconics
of east central New York and southern Vermont.

.DAY ONE...Today and Tonight.

There is a Marginal Risk for Severe Thunderstorms today ahead of a
cold front and an upper level disturbance. The main threat from
these thunderstorms will be damaging wind gusts and large hail one
inch in diameter or greater. The thunderstorms will move from the
west to east at 30 to 35 mph.

In addition, locally heavy downpours could lead to ponding of water
in low lying, poor drainage and urban areas. An isolated flash flood
is also possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a chance of thunderstorms Tuesday, Thursday and Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation might be needed later today.

NYZ032-033-038>040-047-048-051-058-063-082-091100-
Northern Herkimer-Hamilton-Southern Herkimer-Southern Fulton-
Montgomery-Schoharie-Western Schenectady-Western Albany-
Western Greene-Western Ulster-Northern Fulton-
430 AM EDT Sat Jul 8 2017

This Hazardous Weather Outlook is for the southern Adirondacks,
western and central Mohawk Valley, the Schoharie Valley, Helderbergs and
eastern Catskills of east central New York.

.DAY ONE...Today and Tonight.

There is a chance of thunderstorms today. Some of the thunderstorms
may produce gusty winds and heavy rainfall. Some ponding of water on
roadways and poor drainage flooding is possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a chance of thunderstorms Tuesday, Thursday and Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 8, 7:08 AM EDT, 3 hours 29 minutes before
Special Weather Statement
National Weather Service Albany NY
708 AM EDT SAT JUL 8 2017

NYZ039-040-047>049-081200-
Southern Fulton-Eastern Schenectady-Schoharie-Western
Schenectady-Montgomery-
708 AM EDT SAT JUL 8 2017

...A STRONG THUNDERSTORM WILL AFFECT WESTERN SCHENECTADY...NORTHERN
SCHOHARIE AND SOUTHEASTERN MONTGOMERY COUNTIES...

At 708 AM EDT, a strong thunderstorm was located near Middlefield, or
10 miles east of Cooperstown, moving east at 40 mph.

This storm will be near...
  Richmondville around 715 AM EDT.
  Sharon Springs around 720 AM EDT.
  Cobleskill around 725 AM EDT.
  Central Bridge around 735 AM EDT.
  Delanson around 750 AM EDT.
  Amsterdam and Duanesburg around 755 AM EDT.
  Hagaman, Pattersonville-Rotterdam Junction and Rotterdam Junction
  around 800 AM EDT.

Other locations impacted by this storm include Charleston, Zeh
Corners, Beekman Corners, West Richmondville, Seward, Hoffmans,
Rockwell Corners, Warnerville, Flat Creek and Carlisle.

THIS INCLUDES Interstate 88 between exits 19 and 23.

Torrential rainfall is also occurring with this storm, and may cause
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.

LAT...LON 4281 7466 4301 7411 4296 7409 4295 7408
      4277 7397 4274 7410 4273 7418 4272 7417
      4260 7465 4264 7463 4274 7467
TIME...MOT...LOC 1108Z 247DEG 36KT 4269 7473

TAW
Special weather statement, Jul 8, 7:10 AM EDT, 3 hours 27 minutes before
Special Weather Statement
National Weather Service Albany NY
710 AM EDT SAT JUL 8 2017

NYZ039-040-047>049-081200-
Southern Fulton-Eastern Schenectady-Schoharie-Western
Schenectady-Montgomery-
710 AM EDT SAT JUL 8 2017

...A STRONG THUNDERSTORM WILL AFFECT WESTERN SCHENECTADY...NORTHERN
SCHOHARIE AND SOUTHEASTERN MONTGOMERY COUNTIES...

At 709 AM EDT, a strong thunderstorm was located near Middlefield, or
11 miles east of Cooperstown, moving east at 40 mph.

Winds of around 40 mph are possible with this storm.

This storm will be near...
  Richmondville around 715 AM EDT.
  Sharon Springs around 720 AM EDT.
  Cobleskill around 725 AM EDT.
  Central Bridge around 735 AM EDT.
  Delanson around 750 AM EDT.
  Amsterdam and Duanesburg around 755 AM EDT.
  Hagaman, Pattersonville-Rotterdam Junction and Rotterdam Junction
  around 800 AM EDT.

Other locations impacted by this storm include Charleston, Zeh
Corners, Beekman Corners, West Richmondville, Seward, Hoffmans,
Rockwell Corners, Warnerville, Flat Creek and Carlisle.

THIS INCLUDES Interstate 88 between exits 19 and 23.

Torrential rainfall is also occurring with this storm, and may cause
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.

LAT...LON 4281 7466 4301 7411 4296 7409 4295 7408
      4277 7397 4274 7410 4273 7418 4272 7417
      4260 7465 4264 7463 4274 7467
TIME...MOT...LOC 1109Z 247DEG 36KT 4269 7471

TAW
Special weather statement, Jul 8, 8:29 AM EDT, 2 hours 8 minutes before
Special Weather Statement
National Weather Service Albany NY
829 AM EDT SAT JUL 8 2017

MAZ001-NYZ053-054-VTZ013-081315-
Northern Berkshire-Western Rensselaer-Eastern Rensselaer-Bennington-
829 AM EDT SAT JUL 8 2017

...A LINE OF developing STRONG THUNDERSTORMS WILL AFFECT NORTH
CENTRAL BERKSHIRE...RENSSELAER AND SOUTHWESTERN BENNINGTON
COUNTIES...

At 828 AM EDT, radar indicated strong thunderstorms were located
along a line extending from Center Brunswick to near Nassau. Movement
was east at 25 mph.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

These storms will be near...
  Stephentown around 845 AM EDT.
  Grafton around 850 AM EDT.
  Berlin around 855 AM EDT.
  Hancock around 900 AM EDT.
  Hoosick Falls around 905 AM EDT.
  Williamstown, Pownal and New Ashford around 915 AM EDT.

Other locations impacted by these storms include South Troy, Paper
Mill Village, Sodom, Petersburg Junction, Albia, West Stephentown,
Jacks Corners, North Hancock, Millers Corners and Taborton.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

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

LAT...LON 4246 7337 4251 7335 4247 7367 4273 7370
      4274 7369 4275 7369 4281 7366 4283 7366
      4296 7322 4246 7318
TIME...MOT...LOC 1228Z 259DEG 20KT 4277 7361 4256 7359

BGM
Special weather statement, Jul 8, 8:31 AM EDT, 2 hours 6 minutes before
Special Weather Statement
National Weather Service Albany NY
831 AM EDT SAT JUL 8 2017

NYZ038>040-082-081315-
Southern Fulton-Southern Herkimer-Northern Fulton-Montgomery-
831 AM EDT SAT JUL 8 2017

...A STRONG THUNDERSTORM WILL AFFECT WESTERN FULTON...SOUTHERN
HERKIMER AND NORTHWESTERN MONTGOMERY COUNTIES...

At 831 AM EDT, a strong thunderstorm was located near Utica, moving
east at 40 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

This storm will be near...
  Frankfort around 835 AM EDT.
  Poland around 840 AM EDT.
  Newport, Middleville and Cold Brook around 845 AM EDT.
  Dolgeville around 900 AM EDT.
  Stratford around 905 AM EDT.

Other locations impacted by this storm include Ingham Mills,
Spinnerville, Cedar Lake, Farrel Corner, Countryman, South Ilion,
Mindenville, Kelhi Corners, Chepachet and Shedd Corners.

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

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

LAT...LON 4322 7507 4324 7507 4323 7510 4325 7513
      4325 7515 4326 7516 4329 7515 4332 7482
      4323 7454 4323 7449 4288 7450 4288 7483
      4290 7488 4288 7488 4288 7504 4291 7510
      4288 7512 4288 7520 4305 7522
TIME...MOT...LOC 1231Z 260DEG 36KT 4315 7518

BGM
Special weather statement, Jul 8, 9:19 AM EDT, 1 hour 18 minutes before
Special Weather Statement
National Weather Service Albany NY
919 AM EDT SAT JUL 8 2017

NYZ033-039>041-048-050-082-081400-
Southern Fulton-Hamilton-Northern Fulton-Western
Schenectady-Montgomery-Southern Saratoga-Northern Saratoga-
919 AM EDT SAT JUL 8 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN
HAMILTON...NORTHWESTERN SARATOGA...FULTON AND MONTGOMERY COUNTIES...

At 919 AM EDT, radar indicated strong thunderstorms were located
along a line extending from 10 miles north of Caroga Lake to near
Ephratah to near Springfield. Movement was east at 40 mph.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

These storms will be near...
  Caroga Lake Public Campground and Caroga Lake around 930 AM EDT.
  Gloversville, Johnstown, Wells and Sacandaga Campground around 935
  AM EDT.
  Mayfield around 945 AM EDT.
  Fonda, Broadalbin, Cranberry Creek and Northampton Beach Public
  Campground around 950 AM EDT.
  Northville, Tribes Hill and Day Center around 955 AM EDT.
  Amsterdam, Hagaman, Edinburg, Fort Johnson and Lake Luzerne-Hadley
  around 1000 AM EDT.

Other locations impacted by these storms include Parkis Mills, Meco,
West Perth, Sweets Crossing, Fultonville, Glenwild, Young Corners,
Wiley Corners, Conklingville and Porter Corners.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

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

LAT...LON 4298 7474 4305 7468 4333 7455 4342 7417
      4337 7416 4340 7388 4336 7388 4330 7383
      4325 7384 4324 7379 4294 7403 4296 7409
      4287 7409 4282 7461 4286 7476
TIME...MOT...LOC 1319Z 256DEG 36KT 4328 7450 4307 7460 4287 7477

BGM
Special weather statement, Jul 8, 9:53 AM EDT, 44 minutes before
Special Weather Statement
National Weather Service Albany NY
953 AM EDT SAT JUL 8 2017

NYZ040-047-048-081445-
Schoharie-Western Schenectady-Montgomery-
953 AM EDT SAT JUL 8 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN
SCHENECTADY...SCHOHARIE AND SOUTHEASTERN MONTGOMERY COUNTIES...

At 953 AM EDT, radar indicated strong thunderstorms were located
along a line extending from Sharon Springs to Middlefield to near
Laurens. Movement was east at 30 mph.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

These storms will be near...
  Sharon Springs around 1000 AM EDT.
  Cobleskill around 1030 AM EDT.
  Summit around 1040 AM EDT.
  Schoharie, Richmondville and Central Bridge around 1045 AM EDT.

Other locations impacted by these storms include Zeh Corners, Beekman
Corners, West Richmondville, Seward, Rockwell Corners, Huntersland,
Warnerville, Carlisle, Engleville and Gardnersville.

THIS INCLUDES Interstate 88 between exits 19 and 23.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

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

LAT...LON 4262 7463 4275 7467 4283 7465 4281 7456
      4284 7438 4286 7408 4273 7415 4273 7418
      4271 7417 4254 7426 4253 7458 4251 7471
TIME...MOT...LOC 1353Z 256DEG 24KT 4281 7464 4268 7482 4253 7503

BGM

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 8:33 PM EDTAreal Flood AdvisoryALYColumbia, Dutchess, Greene, Ulster3 hr
Jul 8, 5:13 AM EDTSpecial Weather StatementALYHamilton, Herkimer62 min
Jul 8, 5:48 AM EDTSpecial Weather StatementALYFulton42 min
Jul 8, 6:21 AM EDTSpecial Weather StatementALYFulton39 min
Jul 8, 7:08 AM EDTSpecial Weather StatementALYSchenectady52 min
Jul 8, 7:10 AM EDTSpecial Weather StatementALYSchenectady50 min
Jul 8, 8:29 AM EDTSpecial Weather StatementALYRensselaer46 min
Jul 8, 8:31 AM EDTSpecial Weather StatementALYFulton44 min
Jul 8, 9:19 AM EDTSpecial Weather StatementALYFulton, Montgomery41 min
Jul 8, 9:53 AM EDTSpecial Weather StatementALYSchoharie52 min
Jul 8, 11:13 AM EDTAreal Flood AdvisoryALYAlbany, Saratoga, Schenectady2 hr
Jul 8, 11:29 AM EDTSpecial Weather StatementALYRensselaer61 min
Jul 8, 12:47 PM EDTSpecial Weather StatementALYOtsego58 min
Jul 8, 1:08 PM EDTSpecial Weather StatementALYHamilton67 min
Jul 8, 1:17 PM EDTSpecial Weather StatementALYMontgomery43 min
Jul 8, 1:39 PM EDTSpecial Weather StatementALYHamilton, Herkimer66 min
Jul 8, 1:57 PM EDTSpecial Weather StatementALYMontgomery, Schenectady, Schoharie63 min
Jul 8, 2:29 PM EDTSpecial Weather StatementALYSchoharie46 min
Jul 8, 2:36 PM EDTSevere Thunderstorm WarningALYAlbany, Schenectady, Schoharie12 min
Jul 8, 3:06 PM EDTSpecial Weather StatementALYWarren54 min
Jul 8, 3:10 PM EDTSpecial Weather StatementALYAlbany50 min
Jul 8, 3:31 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer44 min
Jul 8, 3:59 PM EDTAreal Flood AdvisoryALYColumbia, Greene3 hr
Jul 8, 4:07 PM EDTSpecial Weather StatementALYWashington68 min
Jul 8, 4:53 PM EDTSpecial Weather StatementALYPutnam52 min
Jul 8, 4:57 PM EDTSpecial Weather StatementALYHamilton63 min

Nearby

Severe Thunderstorm Warnings in New York, 2017Every severe thunderstorm warning in 2017

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.