Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 26, NWS Binghamton, NY

June 12, 20154 counties in New York

NWS Binghamton, NY issued this severe thunderstorm warning at Jun 12, 2015, 3:25 PM EDT for 4 counties in New York. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 12, 2015, 3:25 PM EDT (19:25 UTC)
Expired
Jun 12, 2015, 4:30 PM EDT
In force
65 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Tornado
Possible
Hail
1.75 in
Wind
60.0 mph

Counties Chenango County, NY, Cortland County, NY, Madison County, NY, Onondaga County, NY

The radar

The Binghamton radar (KBGM), 62 km from the middle of the area, began a volume at 19:25 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 12, 3:07 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.4 hours before the alert went out and 168 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 2015-06-12Temperature 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 2015-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.19395878Sfc1 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
1641 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jun 12, 1:48 PM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Jun 12, 1:48 PM EDT, 1 hour 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BINGHAMTON NY
148 PM EDT FRI JUN 12 2015

.SYNOPSIS...
TODAY WILL BE VERY WARM AND MORE HUMID...AS SOUTHERLY WINDS BRING
IN A SUMMER-LIKE AIR MASS. TODAY HIT AND MISS SHOWERS AND
THUNDERSTORMS WILL OCCUR...WITH MORE WIDESPREAD ACTIVITY THIS
EVENING. SOME OF THE STORMS LATER TODAY COULD BE ON THE STRONG
SIDE...WITH GUSTY WINDS AND HEAVY DOWNPOURS POSSIBLE. A COLD FRONT
WILL PUSH SOUTH OF THE REGION SATURDAY...WITH DRIER WEATHER
RETURNING.

&&

.NEAR TERM /THROUGH SATURDAY/...
10 AM UPDATE...

ISOLATED SHOWERS AND A FEW THUNDERSTORMS ALREADY GOING IN NY.
ADDED THESE IN. THIS HAS KEPT TEMPS LOW AND DEWPOINTS HIGH.
MOVEMENT IS TO THE NE AND OUT OF THE AREA FOR THE MOST PART BY
NOON. A BRIEF GAP THEN INCREASING CHANCES THIS AFTN.

415 AM UPDATE... THE SFC FRNTL ZN THAT HAS BEEN MEANDERING OVER
OR NEAR OUR FCST AREA FOR MUCH OF THE WEEK...EXTENDS FROM NRN OH
TO CNTRL/SRN PA EARLY THIS MRNG. THIS BNDRY IS BEGINNING TO PUSH
NWD ONCE AGN AS A WARM FRNT...AND IN RESPONSE TO THIS...ELEVATED
CONVECTION IS DVLPG FROM SRN ONT-WRN NY. SOME OF THIS ACTIVITY MAY
SKIRT OUR FAR NRN ZNS THROUGH 9 OR 10 AM...BUT THE VAST MAJORITY
OF THE CWA SHOULD REMAIN PCPN-FREE OVER THE VERY NEAR TERM.

THE OTHER ISSUE EARLY THIS MRNG IS LOCALLY DENSE FOG OVER PTNS OF
SRN LUZERNE CNTY IN NE PA...WHERE SOME HEAVY RAINFALL OCCURRED
LAST EVENING. THE FOG HERE SHOULD BURN OFF BY 8-9 AM.

FOR THE LATE MRNG-EARLY AFTN PD (10 AM-2 PM)...WE'LL SEE SUNSHINE
THROUGH HIGH CLDNS...ALG WITH INCREASINGLY WARM HUMID CONDS...AS
CNY/NE PA EMERGES INTO THE WARM SECTOR.

FROM MID-AFTN INTO THE EARLY EVE (ROUGHLY 2-8 PM)...WE SHOULD SEE
ISOLD-SCTD CONVECTION START TO FIRE...AS THE AMS BCMS MDTLY-VERY
UNSTABLE (PROGGED ML CAPES OF 1500-2500 J/KG (LEANED HEAVILY ON
THE NAM/HI-RES ARW/RGNL GEM FOR THIS PROGNOSIS))...AND LARGE-SCALE
FORCED LIFT GRADUALLY IMPROVES (MAINLY CNY)...OWING TO LOW-LVL
CONVERGENCE NEAR THE RETREATING WARM FRNTL BNDRY AND ANY LAKE
BREEZE BNDRYS...PLUS UPR-LVL DIFLUENCE UNDERNEATH A DVLPG JET
ENTRANCE RGN. MOST OF THE CONVECTIVE COVERAGE DURG THE DAYLIGHT
HRS SHOULD BE OVER OUR CNY CNTYS...WITH MORE ISOLD ACTIVITY DOWN
OVER NE PA/SULLIVAN CNTY NY. AS FAR AS STORM INTENSITY GOES...WE
STILL THINK THERE IS A SVR WX THREAT...AS DEEP-LYRD SHEAR
(PROJECTED 0-6 KM BULK SHEARS OF 30-40 KT) ACCOMPANIES THE PREV
MENTIONED CAPE. SUCH CAPE/SHEAR PROFILES COULD BE SUPPORTIVE OF
LOCALIZED SUPERCELLS...AND/OR STG LINEAR FEATURES. THE SVR WX
THREAT WILL CONTINUE TO BE HIGHLIGHTED LOCALLY IN OUR HWO
PRODUCT...AND SPC ALSO CONTINUES TO PAINT A SLGT RISK OF SVR THIS
AFTN/EVE...MAINLY AGN OVER OUR NY CNTYS.

FOR THE MID TO LATE EVE PD (ROUGHLY 8 PM-2 AM)...AS A SFC WV
TRACKS FROM UPSTATE NY INTO NRN NEW ENG/SRN QB...THE MAIN SFC
BNDRY SHOULD GET DRAGGED BACK SWD AS A COLD FRNT THROUGH CNY/NE
PA. AS THIS OCCURS...THERE IS DECENT MODEL AGREEMENT ON MORE WIDESPREAD
CONVECTIVE COVERAGE FROM ABT THE TWIN TIERS NWD...WHERE UPR-LVL
SUPPORT IS MAXIMIZED. ACRS MUCH OF NE PA...SHWRS/TSTMS SHOULD
REMAIN MUCH MORE SCTD IN NATURE. AS WE PROGRESS THROUGH THE EVE
HRS...ANY LINGERING SVR WX THREAT SHOULD TRANSITION MORE TO A
HEAVY RAINFALL SCENARIO...AS THE INSTABILITY SLOWLY DIMINISHES AND
THE SHEAR ALSO WEAKENS. PARAMETERS LOOK FAVORABLE FOR LOCALIZED
HEAVY CONVECTIVE RAINFALL...WITH A VERY JUICY ENVIRONMENT (PWAT
VALUES NEAR OR EVEN ABV 2" AND WCD'S OF 12-14K FT) AND INITIALLY
GOOD SYNOPTIC-SCALE LIFT NEAR THE SWD MOVG COLD FRNT (ALTHOUGH
THIS WEAKENS LATE AT NGT BY THE TIME THE FRNT REACHES NE PA...AS
ALLUDED TO EARLIER). FOR THESE REASONS...WE'LL HIGHLIGHT AREAS
FROM THE TWIN TIERS NWD THIS EVE FOR PSBL HEAVY RAINFALL/ISOLD
FLASH FLOODING. WPC HAS ALSO PLACED PTNS OF WRN/CNTRL NY IN A
SLGT RISK FOR EXCESSIVE RAINFALL THIS PD.

IN GENERAL...SHWRS/TSTMS DECREASE BOTH IN INTENSITY/COVERAGE DURG
THE PRE-DAWN HRS EARLY SAT. DURG THE DAY SAT...THE SFC BNDRY
SHOULD ONCE AGN SETTLE JUST TO OUR S ACRS THE SRN HALF OF PA. THIS
FRNT MAY REMAIN CLOSE ENUF TO SPARK A FEW WIDELY SEPARATED
SHWRS/TSTMS ON SAT AFTN...MAINLY DOWN OVER OUR FAR SRN AREAS
(MOSTLY S OF A WILKES-BARRE-CARBONDALE-HONESDALE-MONTICELLO LN).
FOR MUCH OF THE RGN ON SAT THOUGH...IT SHOULD BE RAIN-FREE...WITH
AT LEAST PTLY SUNNY SKIES...AND SOMEWHAT LWR HUMIDITY VALUES.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/...
325 AM UPDATE...
UPPER RIDGE EXTENDING IN FROM THE SOUTH...AND SURFACE RIDGE
EXTENDING IN FROM QUEBEC...SHOULD MAKE SATURDAY NIGHT INTO SUNDAY
FAIRLY QUIET EXCEPT FOR SOME VALLEY FOG SUNDAY MORNING. REMAINS
OF SURFACE FRONT WILL BE PUSHED TOWARDS SW PA...THUS ONLY SLIGHT
CHANCE OF SHOWERS AT BEST IN CENTRAL TWIN TIERS TO WYOMING VALLEY
SATURDAY NIGHT. NOMINAL INSTABILITY IN CENTRAL SOUTHERN TIER NY
SUNDAY AFTERNOON COULD BURP UP AN ISOLATED SHOWER OR STORM...AS A
SHORTWAVE ATTEMPTS TO RIDE THROUGH THE UPPER RIDGE.

UPPER RIDGE FLATTENS A BIT SUNDAY NIGHT ONWARD...ALLOWING VERY
MOIST AIRMASS TO RETURN INCLUDING PRECIPITABLE WATER VALUES
OF 2 INCHES OR SO ACCORDING TO THE GFS...OR BETWEEN 2 AND 3
STANDARD DEVIATIONS ABOVE NORMAL. NOT SEEING STRONG FORCING JET-
WISE...AND THERE MAY BE A FAIR AMOUNT OF CLOUDS WHICH MAY SOMEWHAT
HOLD BACK DAYTIME HEATING. HOWEVER...WITH THE RIDGE
FLATTENED...SHORTWAVES WILL BE TRAVERSING THROUGH THE AREA WITH
SURFACE FRONT WAFFLING BACK-AND-FORTH. SO OVERALL SHOWERS AND SOME
THUNDERSTORMS LOOKING PROBABLE ESPECIALLY MONDAY-MONDAY NIGHT AS A
BETTER-MARKED WAVE PUSHES THROUGH WITH THE HIGH PWAT VALUES.
LOCALIZED HEAVY RAINFALL COULD BECOME AN ISSUE WHERE MULTIPLE
ROUNDS OCCUR...PARTICULARLY CENTRAL NY ZONES.

&&

.LONG TERM /TUESDAY THROUGH THURSDAY/...

HIPRES BLDS IN TUE BRINGING CLRG SKIES HOLDING INTO WED.
HWVR...IT/S A BIT OF A DIRTY FLAT RDG AND ISLTD CONV CAN NOT BE
RULED OUT...ESP OVER THE PA ZONES. SLY FLOW AND MOISTURE RETURNS
IN EARNEST LATE WED INTO THU AS A WV AND SFC LOW APRCHS FROM THE
GREAT LAKES. THIS WILL BRING AN INCRSD CHANCE OF SHWRS AND TRWS
INTO THU AND BEYOND.

HPC GUID WAS IN GOOD AGREEMENT WITH OTR MODEL GUID AND WAS GRNLY
FLWD. MINOR TWEAKS TO DATA FOR BETTER COLLABORATION AND TO BRING
BETTER CONSISTANCY.

&&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...

STRONG COLD FNT WILL DROP INTO THE AREA THIS AFTN AND EVE
TRIGGERING SHWRS AND TRWS...ESP OVER THE NY TAF SITES. XPCT BRIEF
REDUCTIONS IN VSBY AND CIGS WITH THE STORMS...ALONG WITH STRONG
WINDS. FNT WEAKENS OVER THE NY/PA BRDR AND CONV WILL SLOWLY END.
LEFTOVER MOISTURE MAY RESULT IN OCNL MVFR CIGS AND VSBYS...AND
ISLTD IFR CONDS...THRU LATE NGT. CLRG ON SAT WILL BRING VFR CONDS
BEFORE THE END OF TEH PD.

.OUTLOOK...

SAT -SAT NGT-SUN...VFR EXCEPT FOR VALLEY FOG SUN MRNG ESPECIALLY
KELM.

SUN NGT-TUE...POSSIBLE SHRA-TSRA AND ASSOCIATED RESTRICTIONS.

WED...VFR.

&&

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

&&

SYNOPSIS...MLJ/TAC
NEAR TERM...MLJ/TAC
SHORT TERM...MDP
LONG TERM...DGM
AVIATION...DGM
Hazardous weather outlook, Jun 12, 4:10 AM EDT, 11 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BINGHAMTON NY
410 AM EDT FRI JUN 12 2015

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-130815-
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-
410 AM EDT FRI JUN 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK AND
NORTHEAST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON...BECOMING MORE NUMEROUS THIS EVENING. SOME OF THESE
STORMS COULD BECOME SEVERE...WITH STRONG WINDS AND HAIL THE
PRIMARY THREATS.

IN ADDITION...LOCALLY HEAVY RAIN IS POSSIBLE...ESPECIALLY THIS
EVENING. THERE WOULD BE POTENTIAL FOR ISOLATED FLASH
FLOODING...IF HEAVY RAINFALL BECOMES PROLONGED OVER ANY ONE AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON OR EVENING.

PAZ043-044-047-048-072-130815-
WYOMING-LACKAWANNA-LUZERNE-PIKE-SOUTHERN WAYNE-
410 AM EDT FRI JUN 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON AND EVENING. SOME OF THESE STORMS COULD BECOME
SEVERE...WITH STRONG WINDS AND HAIL THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

JUREWICZ

In the hours before

Special weather statement, Jun 12, 2:15 PM EDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
215 PM EDT FRI JUN 12 2015

NYZ015>018-121900-
SENECA NY-ONONDAGA NY-YATES NY-SOUTHERN CAYUGA NY-
215 PM EDT FRI JUN 12 2015

...STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN ONONDAGA...CENTRAL
SENECA...CENTRAL CAYUGA AND NORTHEASTERN YATES COUNTIES  ...

* AT 215 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  OVER KENDAIA...OR 8 MILES NORTHEAST OF PENN YAN...MOVING EAST AT 45
  MPH.

* SMALL HAIL AND STRONG WIND GUSTS WILL BE POSSIBLE WITH THIS STORM.

* THIS STRONG THUNDERSTORM WILL BE NEAR...
  ROMULUS AND OVID AROUND 220 PM EDT.
  AURORA...LEVANNA AND CANOGA AROUND 230 PM EDT.
  LEDYARD AND UNION SPRINGS AROUND 235 PM EDT.
  SCIPIO CENTER AND VENICE CENTER AROUND 240 PM EDT.
  FLEMING...CASOWASCO AND MELROSE PARK AROUND 245 PM EDT.
  OWASCO AROUND 250 PM EDT.
  SKANEATELES...NILES AND KELLOGGSVILLE AROUND 255 PM EDT.
  MARCELLUS AROUND 300 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM. DO NOT DRIVE
YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4277 7697 4282 7697 4304 7633 4278 7620
      4262 7697 4276 7704
TIME...MOT...LOC 1815Z 250DEG 38KT 4274 7692

RHB
Special weather statement, Jun 12, 3:19 PM EDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 2:15 PM EDTSpecial Weather StatementBGMSeneca45 min
Jun 12, 2:59 PM EDTSevere Thunderstorm WarningBGMCayuga, Onondaga61 min
Jun 12, 3:19 PM EDTSpecial Weather StatementBGMSullivan41 min
Jun 12, 3:29 PM EDTTornado WarningBGMCayuga, Chenango, Cortland, Madison, Onondaga46 min
Jun 12, 3:38 PM EDTSevere Thunderstorm WarningBGMSullivan52 min
Jun 12, 4:30 PM EDTSevere Thunderstorm WarningBGMChenango, Madison, Otsego60 min
Jun 12, 5:05 PM EDTSevere Thunderstorm WarningBGMMadison, Onondaga40 min
Jun 12, 5:29 PM EDTSevere Thunderstorm WarningBGMOtsego61 min
Jun 12, 5:33 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida57 min
Jun 12, 5:36 PM EDTSevere Thunderstorm WarningBGMCayuga, Seneca, Steuben, Yates54 min
Jun 12, 5:40 PM EDTTornado WarningBGMOtsego50 min
Jun 12, 5:42 PM EDTSevere Thunderstorm WarningBGMSteuben63 min
Jun 12, 6:16 PM EDTSevere Thunderstorm WarningBGMSchuyler, Seneca, Steuben, Yates41 min
Jun 12, 6:24 PM EDTSevere Thunderstorm WarningBGMCayuga, Onondaga, Seneca36 min
Jun 12, 6:39 PM EDTSevere Thunderstorm WarningBGMChenango, Cortland, Madison51 min
Jun 12, 6:47 PM EDTSevere Thunderstorm WarningBGMSchuyler, Seneca, Tompkins36 min
Jun 12, 7:07 PM EDTSevere Thunderstorm WarningBGMOtsego23 min
Jun 12, 7:14 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Cortland, Tioga, Tompkins61 min
Jun 12, 7:27 PM EDTSevere Thunderstorm WarningBGMChenango, Madison, Otsego48 min
Jun 12, 7:36 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Cortland, Tioga39 min
Jun 12, 7:41 PM EDTSevere Thunderstorm WarningBGMTioga64 min
Jun 12, 7:57 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware, Otsego48 min

Nearby

Severe Thunderstorm Warnings in New York, 2015Every severe thunderstorm warning in 2015

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.