Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 94, NWS Binghamton, NY

June 30, 20215 counties in New York; Bradford County, Susquehanna County, Wayne County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Jun 30, 2021, 4:50 PM EDT for 5 counties in New York; Bradford County, Susquehanna County, Wayne County, Pennsylvania. It was in force for 40 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
Jun 30, 2021, 4:50 PM EDT (20:50 UTC)
Expired
Jun 30, 2021, 5:30 PM EDT
In force
40 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Broome County, NY, Chenango County, NY, Delaware County, NY, Otsego County, NY, Tioga County, NY, Bradford County, PA, Susquehanna County, PA, Wayne County, PA

The radar

The Binghamton radar (KBGM), 24 km from the middle of the area, began a volume at 20:52 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.

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
Jun 30, 3:21 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.8 hours before the alert went out and 206 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 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, Albany, NY at 12:00Z on 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
113 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

298 
WUUS51 KBGM 302050
SVRBGM
NYC007-017-025-077-107-PAC015-115-127-302130-
/O.NEW.KBGM.SV.W.0094.210630T2050Z-210630T2130Z/

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

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Southwestern Otsego County in central New York...
  Broome County in central New York...
  Northwestern Delaware County in central New York...
  Southern Tioga County in central New York...
  Southern Chenango County in central New York...
  Northern Susquehanna County in northeastern Pennsylvania...
  Northwestern Wayne County in northeastern Pennsylvania...
  Northern Bradford County in northeastern Pennsylvania...

* Until 530 PM EDT.

* At 448 PM EDT, severe thunderstorms were located along a line
  extending from near Guilford to near Brackney to near Litchfield to
  Wetona, moving southeast at 20 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...
  Chemung, Binghamton, Vestal, Johnson City, Endicott, Kirkwood,
  Sayre, Conklin, Waverly and Sidney.

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 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.

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

&&

LAT...LON 4240 7488 4185 7547 4177 7635 4173 7665
      4177 7690 4184 7690 4196 7681 4200 7665
      4200 7656 4202 7656 4215 7601 4249 7555
TIME...MOT...LOC 2048Z 312DEG 35KT 4237 7550 4202 7588 4194 7641 4185
7667

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

MJM
1 follow-up statement
476 
WWUS51 KBGM 302115
SVSBGM

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

NYC007-017-025-077-107-PAC015-115-127-302130-
/O.CON.KBGM.SV.W.0094.000000T0000Z-210630T2130Z/
Otsego NY-Broome NY-Delaware NY-Tioga NY-Chenango NY-Susquehanna PA-
Wayne PA-Bradford PA-
515 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTH CENTRAL OTSEGO...SOUTHERN BROOME...NORTHWESTERN DELAWARE...
SOUTHEASTERN TIOGA...SOUTH CENTRAL CHENANGO...NORTHERN SUSQUEHANNA...
NORTHWESTERN WAYNE AND NORTHERN BRADFORD COUNTIES...

At 515 PM EDT, severe thunderstorms were located along a line
extending from Meredith to Brackney to near Rome to near Burlington,
moving southeast at 15 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...
Binghamton, Vestal, Johnson City, Endicott, Kirkwood, Conklin,
Sidney, Athens, Walton and Towanda.

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.

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

&&

LAT...LON 4240 7488 4185 7547 4177 7635 4173 7665
      4176 7681 4181 7681 4192 7673 4196 7661
      4196 7652 4199 7638 4213 7596 4230 7540
      4243 7510
TIME...MOT...LOC 2115Z 314DEG 22KT 4233 7494 4201 7592 4190 7636 4176
7667

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, 2:07 PM EDTSevere Thunderstorm WarningBGMCayuga, Seneca38 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, 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
Jun 29, 10:27 PM EDTSpecial Weather StatementBGMBradford48 min
Jun 30, 12:00 AM EDTSpecial Weather StatementBGMWyoming30 min
Jun 30, 12:11 AM EDTSevere Thunderstorm WarningBGMBradford22 min
Jun 30, 12:28 AM EDTSpecial Weather StatementBGMBradford47 min
Jun 30, 12:40 AM EDTAreal Flood AdvisoryBGMLackawanna, Luzerne, Wayne, Wyoming3 hr
Jun 30, 12:54 AM EDTSpecial Weather StatementBGMBradford36 min
Jun 30, 1:24 AM EDTSpecial Weather StatementBGMBradford36 min
Jun 30, 2:33 PM EDTSpecial Weather StatementBGMSusquehanna27 min
Jun 30, 2:57 PM EDTSpecial Weather StatementBGMSusquehanna33 min
Jun 30, 3:27 PM EDTSpecial Weather StatementBGMSusquehanna33 min
Jun 30, 3:38 PM EDTSpecial Weather StatementBGMBradford37 min
Jun 30, 3:44 PM EDTSpecial Weather StatementBGMLuzerne31 min
Jun 30, 3:54 PM EDTSevere Thunderstorm WarningBGMBradford, Susquehanna51 min
Jun 30, 3:58 PM EDTSpecial Weather StatementBGMWayne32 min
Jun 30, 4:12 PM EDTSpecial Weather StatementBGMWayne33 min
Jun 30, 4:16 PM EDTAreal Flood AdvisoryBGMBradford106 min
Jun 30, 4:20 PM EDTSpecial Weather StatementBGMWyoming25 min
Jun 30, 4:32 PM EDTSevere Thunderstorm WarningBGMLackawanna, Luzerne, Wyoming43 min
Jun 30, 4:33 PM EDTSevere Thunderstorm WarningBGMBradford, Susquehanna42 min
Jun 30, 4:59 PM EDTSpecial Weather StatementBGMLuzerne31 min
Jun 30, 5:07 PM EDTSpecial Weather StatementBGMWayne38 min
Jun 30, 5:25 PM EDTSpecial Weather StatementBGMWayne35 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Severe Thunderstorm Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.