Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 16, NWS Binghamton, NY

April 16, 2017Delaware County, Sullivan County, New York; Wayne County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Apr 16, 2017, 5:24 PM EDT for Delaware County, Sullivan County, New York; Wayne County, Pennsylvania. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 16, 2017, 5:24 PM EDT (21:24 UTC)
Expired
Apr 16, 2017, 6:15 PM EDT
In force
51 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Delaware County, NY, Sullivan County, NY, Wayne County, PA

The radar

The Binghamton radar (KBGM), 84 km from the middle of the area, began a volume at 21:24 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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, 9.4 hours before the alert went out and 144 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 2017-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 311 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1534 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
311 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

051 
WUUS51 KBGM 162124
SVRBGM
NYC025-105-PAC127-162215-
/O.NEW.KBGM.SV.W.0016.170416T2124Z-170416T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Binghamton NY
524 PM EDT SUN APR 16 2017

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Southwestern Delaware County in central New York...
  Northwestern Sullivan County in central New York...
  Northern Wayne County in northeastern Pennsylvania...

* Until 615 PM EDT

* At 524 PM EDT, a severe thunderstorm was located over Shehawken, or
  13 miles south of Deposit, moving east at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to trees. 

* This severe thunderstorm will be near, 
  Equinunk around 535 PM EDT. 
  Stalker and Peabrook around 540 PM EDT. 
  Callicoon and Hankins around 545 PM EDT. 
  Hortonville around 550 PM EDT. 
  Jeffersonville around 555 PM EDT. 
  Bethel and White Sulphur Springs around 600 PM EDT. 
  Liberty and Parksville around 605 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4167 7485 4182 7548 4184 7548 4199 7534
      4188 7469
TIME...MOT...LOC 2124Z 288DEG 39KT 4188 7535 

HAIL...<.75IN
WIND...60MPH
 
$$

DJN
2 follow-up statements
556 
WWUS51 KBGM 162139
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
539 PM EDT SUN APR 16 2017

NYC025-105-PAC127-162215-
/O.CON.KBGM.SV.W.0016.000000T0000Z-170416T2215Z/
Delaware NY-Sullivan NY-Wayne PA-
539 PM EDT SUN APR 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTH CENTRAL DELAWARE...NORTHWESTERN SULLIVAN AND NORTHEASTERN
WAYNE COUNTIES...

At 539 PM EDT, a severe thunderstorm was located over Equinunk, or 18
miles north of Honesdale, moving east at 40 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees. 

This severe storm will be near...
  Callicoon and Hortonville around 550 PM EDT. 
  Jeffersonville around 600 PM EDT. 
  Bethel, White Sulphur Springs and Parksville around 605 PM EDT. 
  Liberty around 610 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4167 7485 4178 7531 4183 7524 4194 7508
      4188 7469
TIME...MOT...LOC 2139Z 287DEG 36KT 4184 7517 

HAIL...<.75IN
WIND...60MPH
 
$$

DJN
115 
WWUS51 KBGM 162149
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
549 PM EDT SUN APR 16 2017

NYC025-162159-
/O.CAN.KBGM.SV.W.0016.000000T0000Z-170416T2215Z/
Delaware NY-
549 PM EDT SUN APR 16 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL DELAWARE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4167 7485 4177 7526 4192 7499 4192 7490
      4188 7469
TIME...MOT...LOC 2149Z 286DEG 40KT 4181 7501 

$$

NYC105-PAC127-162215-
/O.CON.KBGM.SV.W.0016.000000T0000Z-170416T2215Z/
Sullivan NY-Wayne PA-
549 PM EDT SUN APR 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHWESTERN SULLIVAN AND NORTHEASTERN WAYNE COUNTIES...

At 549 PM EDT, a severe thunderstorm was located over Hortonville, or
13 miles west of Liberty, moving east at 45 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees. 

This severe storm will be near...
  Jeffersonville around 555 PM EDT. 
  Bethel and White Sulphur Springs around 600 PM EDT. 
  Liberty and Parksville around 605 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4167 7485 4177 7526 4192 7499 4192 7490
      4188 7469
TIME...MOT...LOC 2149Z 286DEG 40KT 4181 7501 

HAIL...<.75IN
WIND...60MPH
 
$$

DJN

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 Binghamton, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 16, 2:11 PM EDT, 3 hours 13 minutes earlier.

Area forecast discussion, Apr 16, 2:11 PM EDT, 3 hours 13 minutes before
Area Forecast Discussion
National Weather Service Binghamton NY
211 PM EDT Sun Apr 16 2017

.SYNOPSIS...

A thunderstorm will pass through the area later this afternoon
and evening bringing showers and scattered thunderstorms. Cooler
and drier air will return behind the front for the first half
of the work week.

&&

.NEAR TERM /THROUGH TONIGHT/...

Convection over western NY is racing east this afternoon. Very
low topped storms with little lightning may produce some gusty
winds at times. Threat for widespread severe is limited by the
lack of energy with capes currently in the 2000 to 300j/kg
range. Will of course monitor convection and will likely issues
SPS's for winds at times.

Overnight, some light showers will linger into the evening as
the main front lingers back and doesn't pass until the early
morning hours.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...

High pressure builds into the area Monday bringing somewhat
cooler air. Not a big push of cold air however, especially over
PA so temps will drop off only 5 to 10 degrees, especially in
the south. Winds and dry air may raise some fire weather
concerns in the afternoon, depending on how much rain falls with
the front tonight.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
Tuesday looks to be a fair and chilly day with a large
anticyclone centered over the maritimes of Canada which ridges
down across the northeast U.S including NY and PA. This stays in
place into Tuesday evening. Then all four main synoptic scale
models (Euro, GFS, CMC, and NAM80) all show another wave
approaching from the Great Lakes region with attendant moisture
and thermal advections. There is some indication that some light
showers could arrive in central NY and parts of northeast PA
later Tuesday night so have slight chance POPs for showers in
forecast as per Superblend.

Then for Wednesday surface front and associated moisture
advection works into NY and PA so have chance POPs for showers.
Models indicate that the atmosphere will be stable so no mention
of thunderstorms. This first wave passes by and is followed by
another low pressure system and associated more vigourous upper
level wave which reaches into the Great Lakes and mid-west
Wednesday night. Showers will continue as boundary from initial
system remains in the vicinity and eventually begins to work
north as a warm front by 12z Thursday as per CMC, Euro and GFS.

For Thursday into Friday this next more significant low pressure
system and associated upper level low crosses the region with
the best chance for showers. The Euro has the weakest of the
models with no closed low forming, while the GFS and CMC have a
closed 500 mb low over the northeast suggesting a wet and chilly
pattern through Friday. Given the model divergence went with
superblend and have anywhere from chance to likely POPs Thursday
Night with wrap around showers into Friday and even Friday
night.

Euro suggests high pressure and fair weather for Saturday with
the CMC and GFS having wrap around showers tapering off. So
went with a 30 percent chance of showers in this time frame.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
640 am update...

VFR weather is expected through much of this forecast period.
Early this morning as a low level jet passes while surface winds
are mostly under 10 kts so some remaining low level wind shear.
Around 14z this ends as the jet exits and surface winds shift
to the south and southwest at 10 kts with gusts to 20.
Some isolate showers in northeast PA with more upstream but
should not cause any restrictions.

Next issue will be a cold front late afternoon and early
evening. showers and thunderstorms will be ahead of and with
them. The most likely scenario would be a line just ahead of the
front. A 2 hour period of MVFR this afternoon is possible in NY.
Included a tempo for this at SYR/RME which is the most likely
outcome. There is less of a chance for AVP with the best forcing
and dynamics further north. Towards 06z ceilings are expected
to fall to MVFR behind the front in NY. Probably will not reach
AVP.

Winds early this morning light in the valleys to southwest at
10 kts on the higher locations and SYR. Around 14z Winds
increase to 10 to 15 with higher gusts and continue that way
into tonight. Winds shift to west then northwest with the cold
front 22 to 02z.

Outlook...

Monday...Lingering ceiling restrictions possible in the
morning.

Monday night - Tuesday...VFR.

Wednesday - Thursday...Possible restrictions in showers.

&&

.BGM WATCHES/WARNINGS/ADVISORIES...
PA...None.
NY...None.

&&

SYNOPSIS...DGM
NEAR TERM...DGM
SHORT TERM...DGM
LONG TERM...DJN
AVIATION...TAC
Hazardous weather outlook, Apr 16, 2:12 PM EDT, 3 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Binghamton NY
212 PM EDT Sun Apr 16 2017

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-171815-
Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben-
Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango-
Otsego-Tioga-Broome-Delaware-Sullivan-Bradford-Susquehanna-
Northern Wayne-Wyoming-Lackawanna-Luzerne-Pike-Southern Wayne-
212 PM EDT Sun Apr 16 2017

This Hazardous Weather Outlook is for central New York and
northeast Pennsylvania.

.DAY ONE...This Afternoon and Tonight.

Showers and thunderstorms are expected this afternoon into the
evening. A few of these storms may produce strong winds and small
hail.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Apr 16, 3:28 PM EDT, 1 hour 56 minutes before
Special Weather Statement
National Weather Service Binghamton NY
328 PM EDT SUN APR 16 2017

NYZ025-161945-
Tompkins NY-
328 PM EDT SUN APR 16 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE SOUTHERN HALF OF
CAYUGA LAKE UNTIL 345 PM EDT...

At 327 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Covert to Taughannock Falls to Enfield.
Movement was east at 55 mph.

Wind gusts of 50 to 55 mph will be occur with these storms over the
southern half of Cayuga Lake between 330 pm and 345 pm.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If on or near a lake, get out of the water and move indoors or inside
a vehicle. Remember, lightning can strike out to 10 miles from the
parent thunderstorm. If you can hear thunder, you are close enough to
be struck by lightning. Move to safe shelter now! Do not be caught on
the water in a thunderstorm.

&&

LAT...LON 4253 7662 4255 7662 4255 7659 4257 7662
      4261 7662 4262 7657 4254 7646 4245 7649
      4245 7665
TIME...MOT...LOC 1927Z 269DEG 47KT 4260 7657 4253 7658 4246 7664

DJN
Special weather statement, Apr 16, 3:37 PM EDT, 1 hour 47 minutes before
Special Weather Statement
National Weather Service Binghamton NY
337 PM EDT SUN APR 16 2017

NYZ022-024-055-162015-
Steuben NY-Chemung NY-Tioga NY-
337 PM EDT SUN APR 16 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...CHEMUNG...
NORTHWESTERN TIOGA AND SOUTHEASTERN STEUBEN COUNTIES UNTIL 415 PM
EDT...

At 337 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Monterey to Addison to near Westfield.
Movement was east at 60 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Strong thunderstorms will be near...
  Hornby and Erwins around 340 PM EDT.
  Corning and Caton around 345 PM EDT.
  East Corning around 350 PM EDT.
  Southport and Big Flats around 355 PM EDT.
  Elmira and Horseheads around 400 PM EDT.
  Erin and Breesport around 405 PM EDT.
  Waverly and Candor around 410 PM EDT.
  Chemung and Spencer around 415 PM EDT.

These storms 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.

LAT...LON 4208 7734 4230 7710 4227 7710 4229 7674
      4225 7673 4223 7664 4228 7662 4226 7642
      4232 7641 4230 7626 4232 7624 4232 7618
      4210 7641 4200 7659 4200 7747
TIME...MOT...LOC 1937Z 266DEG 52KT 4231 7701 4210 7723 4195 7748

DJN
Special weather statement, Apr 16, 3:48 PM EDT, 1 hour 36 minutes before
Special Weather Statement
National Weather Service Binghamton NY
348 PM EDT SUN APR 16 2017

NYZ023>025-044>046-055-056-162030-
Otsego NY-Chemung NY-Chenango NY-Cortland NY-Schuyler NY-Tioga NY-
Broome NY-Tompkins NY-
348 PM EDT SUN APR 16 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...WEST CENTRAL
OTSEGO...SOUTHEASTERN SCHUYLER...NORTHWESTERN BROOME...NORTHERN
CHEMUNG...CORTLAND...TIOGA...SOUTHERN TOMPKINS AND CHENANGO COUNTIES
UNTIL 430 PM EDT...

At 348 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Cuyler to Harford to near Van Etten.
Movement was east at 50 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Strong thunderstorms will be near...
  Cuyler and Pitcher around 355 PM EDT.
  Marathon around 400 PM EDT.
  Whitney Point and Lisle around 405 PM EDT.
  Owego and Plymouth around 410 PM EDT.
  Norwich and North Norwich around 415 PM EDT.
  Vestal and Endicott around 420 PM EDT.
  Johnson City and Coventry around 425 PM EDT.
  Guilford and Oxford around 430 PM EDT.

These storms 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.

LAT...LON 4235 7554 4201 7617 4218 7688 4246 7632
      4275 7595 4274 7589 4272 7589 4273 7582
      4263 7521
TIME...MOT...LOC 1948Z 280DEG 44KT 4269 7594 4245 7623 4224 7656

DJN
Special weather statement, Apr 16, 4:23 PM EDT, 1 hour 1 minute before
Special Weather Statement
National Weather Service Binghamton NY
423 PM EDT SUN APR 16 2017

NYZ045-046-055>057-162115-
Otsego NY-Chenango NY-Tioga NY-Broome NY-Delaware NY-
423 PM EDT SUN APR 16 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHWESTERN
OTSEGO...BROOME...NORTHWESTERN DELAWARE...EAST CENTRAL TIOGA AND
SOUTHEASTERN CHENANGO COUNTIES UNTIL 515 PM EDT...

At 423 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Norwich to Greene to near Owego. Movement
was east at 50 mph.

Wind gusts up to 50 mph will be possible with these storms.

Strong thunderstorms will be near...
  Norwich and North Norwich around 430 PM EDT.
  Guilford and Nws Binghamton around 435 PM EDT.
  Bainbridge and Afton around 440 PM EDT.
  Binghamton and Sidney around 445 PM EDT.
  Unadilla and Otego around 450 PM EDT.
  Oneonta and Emmons around 455 PM EDT.
  Windsor and Colliersville around 500 PM EDT.
  Walton and Davenport around 505 PM EDT.

These storms 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.

LAT...LON 4219 7504 4200 7554 4212 7627 4235 7580
      4264 7554 4249 7474
TIME...MOT...LOC 2023Z 284DEG 44KT 4255 7557 4234 7574 4214 7622

DJN
Local storm report, Apr 16, 4:51 PM EDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
451 PM EDT SUN APR 16 2017

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

0420 PM     TSTM WND DMG     EAST MCDONOUGH          42.50N  75.69W
04/16/2017                   CHENANGO           NY   911 CALL CENTER

            TREES AND WIRES DOWN ON RT. 220.

&&

EMG
Local storm report, Apr 16, 5:21 PM EDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
521 PM EDT SUN APR 16 2017

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

0450 PM     TSTM WND DMG     1 NW UNADILLA           42.34N  75.33W
04/16/2017                   OTSEGO             NY   911 CALL CENTER

            A TREE ACROSS COUNTY RT. 1.

&&

EMG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 1:48 AM EDTSpecial Weather StatementBGMChenango42 min
Apr 16, 2:07 PM EDTSpecial Weather StatementBGMYates38 min
Apr 16, 2:46 PM EDTSpecial Weather StatementBGMSchuyler, Yates44 min
Apr 16, 3:05 PM EDTSpecial Weather StatementBGMSteuben40 min
Apr 16, 3:14 PM EDTSpecial Weather StatementBGMCortland, Schuyler, Tompkins46 min
Apr 16, 3:28 PM EDTSpecial Weather StatementBGMTompkins17 min
Apr 16, 3:32 PM EDTSevere Thunderstorm WarningBGMCortland, Tioga, Tompkins28 min
Apr 16, 3:37 PM EDTSpecial Weather StatementBGMChemung38 min
Apr 16, 3:48 PM EDTSpecial Weather StatementBGMChenango, Cortland, Tioga42 min
Apr 16, 4:23 PM EDTSpecial Weather StatementBGMBroome, Chenango52 min
Apr 16, 4:25 PM EDTSevere Thunderstorm WarningBGMChenango, Delaware, Otsego50 min
Apr 16, 4:36 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware39 min
Apr 16, 4:54 PM EDTSevere Thunderstorm WarningBGMBroome51 min
Apr 16, 5:14 PM EDTSevere Thunderstorm WarningBGMDelaware, Otsego34 min
Apr 16, 5:43 PM EDTSevere Thunderstorm WarningBGMSullivan32 min
Apr 16, 5:53 PM EDTSpecial Weather StatementBGMLackawanna, Luzerne, Pike, Wayne67 min

Nearby

Severe Thunderstorm Warnings in New York, 2017Severe Thunderstorm Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.