Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 247, NWS Binghamton, NY

August 2, 2008Sullivan County, New York; Pike County, Wayne County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Aug 2, 2008, 4:34 PM EDT for Sullivan County, New York; Pike County, Wayne County, Pennsylvania. It was in force for 56 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
Aug 2, 2008, 4:34 PM EDT (20:34 UTC)
Expired
Aug 2, 2008, 5:30 PM EDT
In force
56 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon

Counties Sullivan County, NY, Pike County, PA, Wayne County, PA

The radar

The Binghamton radar (KBGM), 106 km from the middle of the area, began a volume at 20:34 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 nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.6 hours before the alert went out and 160 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 2008-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 523 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 2008-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
523 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
870 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Aug 2, 2:58 PM EDT, 1 hour 36 minutes earlier.

Area forecast discussion, Aug 2, 2:58 PM EDT, 1 hour 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BINGHAMTON NY
258 PM EDT SAT AUG 2 2008

.SYNOPSIS...
A COLD FRONT WILL SETTLE THROUGH THE REGION THIS EVENING...WITH
LATE AFTERNOON SHOWERS AND THUNDERSTORMS TAPERING TO A FEW
ISOLATED SHOWERS OVERNIGHT. SCATTERED SHOWERS...ALONG WITH A FEW
RUMBLES OF THUNDER ARE EXPECTED ON SUNDAY...ALONG WITH
TEMPERATURES BELOW NORMAL FOR THIS TIME OF YEAR. DRIER AND WARMER
WEATHER IS EXPECTED AS WE HEAD INTO EARLY NEXT WEEK.

&&

.NEAR TERM /THROUGH TONIGHT/...
SHRA/TSRA ACTIVITY HAS BLOSSOMED IN PROXIMITY TO UPPER
TROUGH...WHICH HAS DEVELOPED A NEUTRAL TILT IN RESPONSE TO AN
IMPRESSIVE SHORTWAVE NOW LOCATED OVER MY NORTHWESTERN ZONES THAT
HAS DUG INTO THE BASE OF THE AMPLIFYING TROUGH. THIS ACTIVITY HAS
FEATURED SOME STRONG CELLS...NONE OF WHICH HAVE BEEN SEVERE UP TO
THIS POINT. ACTIVITY DIMINISHES RAPIDLY TO THE SOUTH WITH ONLY A
FEW ISOLATED CELLS OVER NEPA. THIS IS IN GOOD AGREEMENT WITH THE
CURRENT LOCATION OF THE COLD POOL ALOFT...CURRENTLY CENTERED OVER
MY NORTHWESTERN COUNTIES. WILL LIKELY SEE SOMEWHAT ENHANCED
COVERAGE OVER THE NEXT FEW HOURS BEFORE THE LOSS OF SOLAR
INSOLATION EARLY THIS EVENING LIMITS INSTABILITY...AND THE
SHORTWAVE ALOFT PASSES EAST OF OUR LONGITUDE...ENDING UPPER
SUPPORT FOR LIFT. GIVEN THE BROAD CYCLONIC FLOW...AND GOOD AMOUNTS
OF LLEVEL MOISTURE...EXPECT A FEW SHRA TO CONTINUE
OVERNIGHT...PARTICULARLY UP NORTH...CLOSEST TO THE UPPER LOW.
ALSO...EXPECT CLOUDINESS TO FILL IN OVERNIGHT GIVEN UPSLOPE FLOW
OVER CNY. SOMEWHAT OF A RAW NIGHT WITH LOWS FALLING TO AROUND 60.

&&

.SHORT TERM /SUNDAY THROUGH TUESDAY/...
COLD POOL GRADUALLY SHIFTS EAST OF OUR AREA DURING THE DAY ON
SUNDAY...BUT PRETTY MUCH ANY SURFACE HEATING SHOULD BE GOOD FOR
SOME SCT SHRA. INSTABILITY LOOKS VERY MINIMAL WITH THE GFS
PAINTING A LITTLE...AND THE NAM PRETTY MUCH NIL. SO...HAVE
MENTIONED A SCHC OF A TSRA...BUT SVR NOT EXPECTED AND EXPECT MOST
OF THE ACTIVITY TO BE SHRA. TEMPS WILL BE COOLER THAN NORMAL FOR
THIS TIME OF YEAR WITH T850 ONLY AROUND +11-12C. THIS...COMBINED
WITH NOT QUITE FULL SUN SHOULD ONLY ALLOW TEMPS INTO THE MID 70S.

SUNDAY NIGHT WE CONTINUE GRADUAL IMPROVEMENT AS THE UPPER LOW
CONTINUES TO PULL NORTH AND EAST. EXPECT ANOTHER NIGHT WITH LOWS
AROUND 60...AND QUITE A BIT OF CLOUDINESS GIVEN CONTINUED UPSLOPE
FLOW OVER CNY.

MONDAY LOOKS MUCH BETTER AS TEMPS THROUGH THE COLUMN WARM AND A
WEAK RIDGE OF SURFACE HIGH PRESSURE BUILDS TOWARDS THE AREA.
THE DAY SHOULD BE DRY AND FEATURE LESS CLOUDINESS. T850 WILL ONLY
RISE TO +12-13C SO HIGHS STILL WON/T WARM MUCH...ONLY TO 75-80.

HIGH PRESSURE CRESTS OVERHEAD MONDAY NIGHT...AND WITH SOMEWHAT
WARMER AIR THROUGH THE COLUMN...EXPECT LOWS TO BE A LITTLE
WARMER...IN THE LOWER 60S.

TUESDAY...MUCH WARMER AIR BEGINS STREAMING IN ALOFT AS A WARM
FRONT AND ASSOCIATED ISENTROPIC LIFT BEGINS TO PULL IN FROM THE
WEST WITH THE H85/H7 RIDGES CRESTING OVERHEAD AND THEN PULLING
EAST OF OUR LONGITUDE. CAN/T RULE OUT A LATE DAY SHRA/TSRA OVER
THE WEST AS DEEPER LIFT ARRIVES...BUT THE MAJORITY OF THE ACTIVITY
SHOULD HOLD OFF UNTIL TUESDAY NIGHT. HIGHS WILL RISE INTO THE
LOWER AND MIDDLE 80S.

&&

.LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/...
MDLS CONTINUE TO ADVERTISE RE-AMPLIFICATION OF THE NE U.S. TROF
BY LATE WEEK...WITH POS PNA PTRN MORE TYPICAL OF THE COOL SEASON.
S/WVS ROTATING THRU THIS BUCKLING FLOW WILL HAVE THE POTNL TO
SET OFF ISOLD TO WDLY SCT CONVECTION AT ANY TIME...BUT BEST CHCS
ATTM APPEAR TO BE WITH STRONGER WAVES PROGGED FOR TUES NGT/WED AND
AGAIN ON FRI. TEMPS WILL AVG A BIT BLO NORMAL FOR THIS PD. HPC
GUIDANCE LOOKED GOOD AND ONLY MINOR TWEEKS WERE MADE.

&&

.AVIATION /19Z SATURDAY THROUGH THURSDAY/...
THIS AFTN...TSRA MAINLY CNTRL AND NRN NY AFFECTING RME/SYR/ITH
WTIH MVFR CONDITIONS. VFR XPCTD TO PREVAIL ELSEWHERE THRU THE
AFTN. LATER TNGT, MOIST AND COOLER NNW FLOW DVLPS WITH MDLS SHOWING
SATURATION OF LOWEST LVLS AT MOST SITES AFTER 06Z. NOTED LOW CLDS
AND CIGS IN THE 0.5-1K FT RNGT EARLIER THIS MRNG OVER PORTIONS OF
MI, AND BELIEVE THIS POTNL EXITS TNGT ACRS THE BGM CWA...AIDED BY
UPSLOPE FLOW INTO THE SRN TIER. MVFR FCST FOR MOST SITES AFTER
06Z....WITH PSBLTY OF IFR AT BGM/ITH AND RME TWDS DAYBREAK. MOST
SITES SHUD BREAK OUT TO VFR BY LATE SUN MRNG. WINDS LGT AND GNRLY
OUT OF THE NW THRU TNGT...THEN INCREASING TO 10-15 KTS ON SUN
MRNG.

SUN NGT THRU TUES...VFR BUT POTNL FOR DENSE EARLY MRNG VLY FOG AT
ELM.

TUES NGT/WED...POTNL FOR SCT MVFR IN TSRA.

THU...VFR.

&&

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

&&

SYNOPSIS...JMA
NEAR TERM...JMA
SHORT TERM...JMA
LONG TERM...
AVIATION...
Hazardous weather outlook, Aug 2, 3:48 PM EDT, 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BINGHAMTON NY
348 PM EDT SAT AUG 2 2008

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-032000-
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-
348 PM EDT SAT AUG 2 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE LATE
AFTERNOON AND EARLY EVENING HOURS. A FEW OF THESE STORMS MAY
PRODUCE LARGE HAIL AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THROUGH THE EARLY EVENING.

ARNOTT

In the hours before

Special weather statement, Aug 2, 2:47 PM EDT, 1 hour 47 minutes before
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Special weather statement, Aug 2, 2:52 PM EDT, 1 hour 42 minutes before
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Special weather statement, Aug 2, 3:21 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
321 PM EDT SAT AUG 2 2008

NYZ056-PAZ039-022015-
BROOME NY-SUSQUEHANNA PA-
321 PM EDT SAT AUG 2 2008

...LINE OF STRONG THUNDERSTORMS MOVING INTO THE AREA...

* AT 317 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL...
  STRONG GUSTY WINDS...AND VERY HEAVY RAIN.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM VESTAL TO 10 MILES WEST OF
  LITTLE MEADOWS...AND MOVING SOUTHEAST AT 15 MPH.

* STRONG THUNDERSTORMS WILL BE NEAR...
  LITTLE MEADOWS AT 335 PM EDT...
  VESTAL CENTER AT 340 PM EDT...
  FRIENDSVILLE AND BRACKNEY AT 410 PM EDT...
  MIDDLETOWN CENTER AND WYOANNA AT 415 PM EDT...

THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE
HAIL AND/OR DAMAGING WINDS.

ARNOTT
Special weather statement, Aug 2, 3:59 PM EDT, 35 minutes before
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Local storm report, Aug 2, 4:04 PM EDT, 30 minutes before
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Special weather statement, Aug 2, 4:28 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
Aug 2, 3:02 PM EDTSevere Thunderstorm WarningBGMTioga28 min
Aug 2, 3:33 PM EDTSevere Thunderstorm WarningBGMCortland27 min
Aug 2, 3:37 PM EDTSevere Thunderstorm WarningBGMBroome23 min
Aug 2, 7:03 PM EDTAreal Flood AdvisoryBGMSchuyler, Steuben, Yates117 min
Aug 2, 4:09 PM EDTSevere Thunderstorm WarningBGMSusquehanna, Wayne36 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2008Severe Thunderstorm Warnings in New York, 2008Every severe thunderstorm warning in 2008

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.