Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 86, NWS Binghamton, NY

June 30, 2021Cayuga County, Seneca County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Jun 30, 2021, 2:07 PM EDT for Cayuga County, Seneca County, New York. It was in force for 38 min. 5 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
Jun 30, 2021, 2:07 PM EDT (18:07 UTC)
Expired
Jun 30, 2021, 2:45 PM EDT
In force
38 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cayuga County, NY, Seneca County, NY

The radar

The Binghamton radar (KBGM), 102 km from the middle of the area, began a volume at 18:10 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
Jun 30, 2:13 PM EDTTSTM WND DMG1 Ne Packwood Corners, NYTREE DOWN ACROSS THE ROAD. TIME ESTIMATED BY RADAR. TIME ESTIMATED BY RADAR.
Jun 30, 2:15 PM EDTTSTM WND DMGWaterloo, NYTREE DOWN ON ROAD. TIME ESTIMATED BY RADAR.
Jun 30, 2:20 PM EDTTSTM WND DMG1 Ssw Lehigh Vly Jct, NYTREE DOWN THROUGH A HOUSE. TIME ESTIMATED BY RADAR.
Jun 30, 2:22 PM EDTTSTM WND DMG1 Wnw Cayuga, NYMULTIPLE TREES DOWN BLOCKING ROAD. TIME ESTIMATED BY RADAR.
Jun 30, 2:35 PM EDTTSTM WND DMGAuburn, NYMULTIPLE TREES DOWN. REPORT OF NO PHONE SERVICE THROUGHOUT THE TOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 30, 11:47 AM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.1 hours before the alert went out and 161 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, Buffalo Intl Airport, NY at 12:00Z on 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 366 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
366 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

923 
WUUS51 KBGM 301807
SVRBGM
NYC011-099-301845-
/O.NEW.KBGM.SV.W.0086.210630T1807Z-210630T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Binghamton NY
207 PM EDT Wed Jun 30 2021

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Northwestern Seneca County in central New York...
  Northwestern Cayuga County in central New York...

* Until 245 PM EDT.

* At 206 PM EDT, a severe thunderstorm was located near Waterloo,
  moving east at 35 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Auburn, Seneca Falls, Waterloo, Owasco, Sennett, Fleming,
  Montezuma, Union Springs, Tyre and Cayuga.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. 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.

Heavy rainfall is occurring with this storm, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4287 7698 4287 7696 4299 7697 4301 7696
      4303 7656 4303 7650 4300 7649 4301 7646
      4286 7645 4284 7644 4285 7698
TIME...MOT...LOC 1806Z 275DEG 31KT 4294 7695 

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

MJM
1 follow-up statement
299 
WWUS51 KBGM 301835
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
235 PM EDT Wed Jun 30 2021

NYC099-301845-
/O.CAN.KBGM.SV.W.0086.000000T0000Z-210630T1845Z/
Seneca NY-
235 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SENECA 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
central New York.

LAT...LON 4300 7649 4301 7646 4286 7645 4284 7644
      4285 7672 4288 7672 4290 7674 4295 7673
      4296 7674 4302 7671 4303 7650
TIME...MOT...LOC 1835Z 275DEG 31KT 4292 7661 

$$

NYC011-301845-
/O.CON.KBGM.SV.W.0086.000000T0000Z-210630T1845Z/
Cayuga NY-
235 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR NORTHWESTERN CAYUGA COUNTY...

At 235 PM EDT, a severe thunderstorm was located over Auburn, moving
east at 35 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Auburn, Owasco, Sennett, Fleming, Union Springs, Cayuga, Melrose
Park, Throopsville, Mapleton and Fosterville.

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 this storm.
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.

Heavy rainfall is occurring with this storm, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4300 7649 4301 7646 4286 7645 4284 7644
      4285 7672 4288 7672 4290 7674 4295 7673
      4296 7674 4302 7671 4303 7650
TIME...MOT...LOC 1835Z 275DEG 31KT 4292 7661 

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

MJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:06 PM EDTAreal Flood AdvisoryBGMChemung, Schuyler, Tioga, Tompkins114 min
Jun 29, 9:06 PM EDTSpecial Weather StatementBGMBroome24 min
Jun 29, 9:18 PM EDTSpecial Weather StatementBGMTompkins42 min
Jun 29, 10:22 PM EDTSpecial Weather StatementBGMDelaware23 min
Jun 29, 10:44 PM EDTSpecial Weather StatementBGMBroome46 min
Jun 29, 11:06 PM EDTAreal Flood AdvisoryBGMDelaware3 hr
Jun 29, 11:50 PM EDTSpecial Weather StatementBGMSteuben40 min
Jun 30, 12:25 AM EDTSevere Thunderstorm WarningBGMChemung, Schuyler, Steuben34 min
Jun 30, 11:34 AM EDTSevere Thunderstorm WarningBGMOnondaga56 min
Jun 30, 12:19 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida, Onondaga41 min
Jun 30, 12:58 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida38 min
Jun 30, 1:58 PM EDTSpecial Weather StatementBGMCayuga47 min
Jun 30, 2:16 PM EDTSpecial Weather StatementBGMMadison44 min
Jun 30, 2:25 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida, Onondaga50 min
Jun 30, 2:37 PM EDTSpecial Weather StatementBGMBroome23 min
Jun 30, 2:45 PM EDTSpecial Weather StatementBGMSchuyler, Steuben30 min
Jun 30, 3:08 PM EDTSevere Thunderstorm WarningBGMChenango, Madison, Otsego52 min
Jun 30, 3:14 PM EDTSpecial Weather StatementBGMChemung, Cortland, Tompkins46 min
Jun 30, 3:28 PM EDTSevere Thunderstorm WarningBGMBroome, Chemung, Chenango, Cortland, Madison, Otsego and 3 more47 min
Jun 30, 4:12 PM EDTSevere Thunderstorm WarningBGMChenango, Otsego43 min
Jun 30, 4:16 PM EDTSpecial Weather StatementBGMBroome44 min
Jun 30, 4:50 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware, Otsego, Tioga40 min
Jun 30, 5:18 PM EDTSpecial Weather StatementBGMDelaware27 min
Jun 30, 5:19 PM EDTFlash Flood WarningBGMBroome, Chenango, Delaware51 min
Jun 30, 5:32 PM EDTSpecial Weather StatementBGMDelaware43 min
Jun 30, 5:39 PM EDTSpecial Weather StatementBGMSullivan36 min
Jun 30, 5:49 PM EDTSevere Thunderstorm WarningBGMDelaware, Sullivan41 min
Jun 30, 5:59 PM EDTSpecial Weather StatementBGMSullivan46 min
Jun 30, 6:26 PM EDTSevere Thunderstorm WarningBGMSullivan19 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Every severe thunderstorm warning in 2021

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.