Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 160, NWS Binghamton, NY

June 28, 2011Bradford County, Susquehanna County, Wyoming County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Jun 28, 2011, 7:40 PM EDT for Bradford County, Susquehanna County, Wyoming County, Pennsylvania. It was in force for 50 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 28, 2011, 7:40 PM EDT (23:40 UTC)
Expired: Jun 28, 2011, 8:30 PM EDT
In force: 50 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon

Counties Bradford County, PA, Susquehanna County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 56 km from the middle of the area, began a volume at 23:41 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, 11.7 hours before the alert went out and 217 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1038 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 81 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 28, 7:09 PM EDT, 31 minutes earlier.

Area forecast discussion, Jun 28, 7:09 PM EDT, 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BINGHAMTON NY
709 PM EDT TUE JUN 28 2011

.SYNOPSIS...
A COLD FRONT WILL CROSS THE AREA TONIGHT...BRINGING A FEW SHOWERS
AND THUNDERSTORMS. HIGH PRESSURE WILL SLOWLY BUILD OVER THE REGION
WEDNESDAY AND THURSDAY...WITH DRY...COOLER...AND LESS HUMID
WEATHER. STARTING FRIDAY AND LASTING INTO NEXT WEEKEND...IT
APPEARS THAT HEAT AND HUMIDITY WILL GRADUALLY RETURN.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
215 PM UPDATE... STILL EXPECTING A BKN LN OF SHRA/TSRA TO MARCH
THROUGH CNTRL NY/NE PA LATE THIS AFTN/ERLY EVE. COMBINATION OF
UNSTABLE AMS (1000-1500 ML CAPES) AND IMPROVING DEEP-LYRD SHEAR
(0-6 KM VALUES OF 30-35 KT) COULD BE ENOUGH FOR A FEW STG/SVR
STORMS...SPCLY IN VIEW OF FORCING FROM UPPER-LVL TROUGH/SFC FRNT.

LATER TONIGHT...AFTER 03Z...AS FROPA OCCURS FROM W TO E...SHRA
SHOULD COME TO AN END...WITH SKIES BECOMING PTLY CLDY. DESPITE
LCLLY WET GRND FROM RAINFALL...LWRG DEW PTS/DRYING ALOFT SHOULD
PRECLUDE MUCH IN THE WAY OF FOG FORMATION OVERNIGHT/EARLY WED.

1 PM UPDATE... AS EXPECTED...TSRA ARE FORMING ACROSS WRN NY/PA
AND BACK OVER SRN ONT ATTM...COINCIDENT WITH LK BREEZE CONV BNDRYS
AND THE MAIN SYNOPTIC COLD FRNT. ALSO AS ANTICIPATED...CLDS ARE IN
THE PROCESS OF THINNING OUT...WITH DRY AIR ALOFT ADVANCING INTO
THE NORTHEASTERN U.S.

AS OF 16Z...ML CAPES HAVE REACHED 500-1000 ACRS THE WRN HALF OF
NY/PA...WITH SOME FURTHER DESTABILIZATION EXPECTED THIS AFTN (LKLY
REACHING 1000-1500). THROUGH EARLY AFTN...VERT SHEAR SHOULD REMAIN
WEAK...BUT THIS MAY ALSO INCREASE LTR IN THE DAY...AS A LRG SCALE
UPPER-LVL TROUGH APPCHS.

BOTTOM LN...STILL ANTICIPATING AN INCRS IN SHRA/TSRA WITH
TIME...WITH POPS IN THE LKLY/NUMEROUS RANGES BETWEEN ABOUT 21Z AND
02Z. CONVECTION SHOULD MOVE TO THE E THEREAFTER...FOLLOWING SFC FROPA.
BEST CHC OF STG/SVR STORMS WOULD PROBABLY BE LATER IN THE DAY...AS
SHEAR IMPROVES. SPC HAS ADDED OUR CWA TO THE SLGT RISK AREA FOR
SVR THIS AFTN/EVE.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/...
230 PM UPDATE... STILL A QUIET PD FORESEEN OVERALL.

LINGERING UPPER-LVL TROUGH FROM SERN CANADA INTO NRN NEW ENG/NE NY
ON WED MAY TOUCH OFF A FEW DIURNALLY ENHANCED
SHRA/TSRA...PRIMARILY ACROSS THE NRN FINGER LKS/MOHAWK VLY/SRN TUG
HILL ZNS. MAINLY DRY WX ANTICIPATED ELSEWHERE.

WED NGT THROUGH FRI...HEIGHTS BUILD ACROSS THE ERN U.S...AS A
RIDGE EXPANDS FROM THE MIDDLE OF THE COUNTRY. THIS SHOULD LEAD TO
RAIN-FREE CONDITIONS...WITH A DAY TO DAY WARMING TREND IN TEMPS.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A WARM FRONT FRONT PASSAGE IS STILL FORECAST FOR FRIDAY NIGHT WITH
THE COLD FRONT MOVING THROUGH SATURDAY. THIS BRINGS CHANCES OF
SHOWERS AND THUNDERSTORMS. SOME LINGERING SHOWERS MAY EXIST INTO EARLY
SUNDAY WITH THE UPPER TROF MOVING ACROSS. ZONAL FLOW SETS UP
ALLOWING FOR FAST MOVEMENT OF SHORT-WAVES ACROSS THE AREA. TIMING
BECOMES LESS CERTAIN BUT THE CHANCE OF SCATTERED SHOWERS AND
AFTERNOON/EVENING THUNDERSTORMS RETURN FOR THE FOURTH OF JULY AND TUESDAY.

TEMPERATURE FIELDS LOOK TO BE SEASONAL FOR THIS TIME OF YEAR WITH
DAYTIME READINGS IN THE LOW TO MID 80S AND LOWS IN THE MID 50S-MID
60S.

&&

.AVIATION /23Z TUESDAY THROUGH SUNDAY/...
SCATTERED THUNDERSTORMS MAINLY EAST OF I-81 WILL CONTINUE FOR THE
NEXT 2 TO 3 HOURS. TERMINALS WHICH RECEIVED A LOT OF RAIN EARLIER
WILL BE MOST PRONE TO LIGHT FOG FORMATION OVERNIGHT. WE ARE
FORECASTING MVFR VISIBILITIES IN FOG AT ELM, ITH, AVP, AND BGM.

WINDS BEHIND A COLD FRONT WILL INCREASE OUT OF THE WEST AT 10 TO
15 KNOTS MID-MORNING WEDNESDAY. A FEW HIGHER GUSTS ARE POSSIBLE.

OUTLOOK...

WEDNESDAY NIGHT THRU FRI NIGHT...VFR...EXCEPT IFR VALLEY FOG
EARLY AM.

SAT INTO SUN...MVFR PSBL IN SHOWERS AND TSTMS.

&&

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

&&

SYNOPSIS...MLJ
NEAR TERM...MLJ
SHORT TERM...MLJ
LONG TERM...BMW
AVIATION...DJP

Hazardous weather outlook, Jun 28, 1:24 PM EDT, 6 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BINGHAMTON NY
437 AM EDT TUE JUN 28 2011

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-290845-
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-
438 AM EDT TUE JUN 28 2011

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

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE AREA TODAY AND
CONTINUE THROUGH THIS EVENING. A FEW STORMS COULD PRODUCE STRONG
GUSTY WINDS AND BRIEF HEAVY DOWNPOURS LATE THIS AFTERNOON OR THIS
EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MSE

In the hours before

Local storm report, Jun 28, 6:48 PM EDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
648 PM EDT TUE JUN 28 2011

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

0458 PM     TSTM WND DMG     SULLIVAN                43.05N  75.87W
06/28/2011                   MADISON            NY   911 CENTER

            TREES DOWN

&&

BLL

Special weather statement, Jun 28, 6:58 PM EDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
658 PM EDT TUE JUN 28 2011

PAZ038-282345-
BRADFORD PA-
658 PM EDT TUE JUN 28 2011

...STRONG THUNDERSTORM WILL AFFECT NORTHERN BRADFORD COUNTY...

* AT 653 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...STRONG GUSTY
  WINDS...AND VERY HEAVY RAIN.  THIS STORM WAS LOCATED NEAR
  SYLVANIA...AND MOVING EAST AT 35 MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  LEONA AND SPRINGFIELD AT 705 PM EDT...
  WETONA AND WEST BURLINGTON AT 710 PM EDT...
  BURLINGTON AT 715 PM EDT...
  RIGGS AND EAST SMITHFIELD AT 720 PM EDT...
  SHESHEQUIN AND ULSTER AT 730 PM EDT...
  WYSOX AND MACEDONIA AT 735 PM EDT...
  ROME AT 740 PM EDT...
  ORWELL AND HERRICKVILLE AT 745 PM EDT...

THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.

LAT...LON 4200 7622 4200 7621 4176 7614 4168 7689
      4186 7691

MLJ

Local storm report, Jun 28, 7:00 PM EDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
700 PM EDT TUE JUN 28 2011

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

0632 PM     TSTM WND DMG     DRYDEN                  42.49N  76.30W
06/28/2011                   TOMPKINS           NY   911 CENTER

            NUMEROUS TREES DOWN IN AND AROUND THE TOWN

&&

MJN

Local storm report, Jun 28, 7:25 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
725 PM EDT TUE JUN 28 2011

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

0653 PM     TSTM WND DMG     LISLE                   42.35N  76.00W
06/28/2011                   BROOME             NY   911 CENTER

            TREES DOWN ON ROUTE 11

&&

BLL

Local storm report, Jun 28, 7:26 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
726 PM EDT TUE JUN 28 2011

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

0653 PM     TSTM WND DMG     WHITNEY POINT           42.33N  75.97W
06/28/2011                   BROOME             NY   911 CENTER

            TREES DOWN ON ROUTE 26

&&

BLL

Local storm report, Jun 28, 7:30 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BINGHAMTON NY
730 PM EDT TUE JUN 28 2011

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

0442 PM     TSTM WND DMG     1 S KEUKA PARK          42.60N  77.08W
06/28/2011                   YATES              NY   PUBLIC

            12-14 FOOT BOATS MOVED ABOUT 100 FEET... 20 FOOT BOAT
            TIPPED OVER... LARGE TREE DOWN

0458 PM     TSTM WND DMG     CHITTENANGO             43.05N  75.87W
06/28/2011                   MADISON            NY   911 CENTER

            TREES AND WIRES DOWN

0458 PM     TSTM WND DMG     SULLIVAN                43.05N  75.87W
06/28/2011                   MADISON            NY   911 CENTER

            TREES DOWN

0520 PM     HEAVY RAIN       BALDWINSVILLE           43.16N  76.33W
06/28/2011  M0.50 INCH       ONONDAGA           NY   TRAINED SPOTTER

            SPOTTER ALSO REPORTED PEA SIZE HAIL AND THAT THE HALF
            INCH OF RAIN FELL IN 15 MINUTES.

0550 PM     TSTM WND DMG     TRUXTON                 42.72N  76.03W
06/28/2011                   CORTLAND           NY   911 CENTER

            NUMEROUS POLES AND PRIMARY WIRES DOWN

0632 PM     TSTM WND DMG     DRYDEN                  42.49N  76.30W
06/28/2011                   TOMPKINS           NY   911 CENTER

            NUMEROUS TREES DOWN IN AND AROUND THE TOWN

0653 PM     TSTM WND DMG     LISLE                   42.35N  76.00W
06/28/2011                   BROOME             NY   911 CENTER

            TREES DOWN ON ROUTE 11

0653 PM     TSTM WND DMG     WHITNEY POINT           42.33N  75.97W
06/28/2011                   BROOME             NY   911 CENTER

            TREES DOWN ON ROUTE 26

&&

MJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 2:59 PM EDT	Special Weather Statement	BGM	Seneca, Yates	61 min
Jun 28, 3:29 PM EDT	Special Weather Statement	BGM	Cayuga	46 min
Jun 28, 3:51 PM EDT	Special Weather Statement	BGM	Cayuga, Onondaga, Seneca, Yates	54 min
Jun 28, 4:15 PM EDT	Areal Flood Advisory	BGM	Onondaga	3 hr
Jun 28, 4:20 PM EDT	Severe Thunderstorm Warning	BGM	Madison, Onondaga	40 min
Jun 28, 4:38 PM EDT	Special Weather Statement	BGM	Tompkins	52 min
Jun 28, 4:43 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Schuyler, Seneca, Tompkins, Yates	47 min
Jun 28, 4:45 PM EDT	Special Weather Statement	BGM	Seneca	30 min
Jun 28, 4:54 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga	51 min
Jun 28, 5:10 PM EDT	Severe Thunderstorm Warning	BGM	Schuyler, Tompkins	50 min
Jun 28, 5:28 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Chenango, Cortland, Madison, Tompkins	47 min
Jun 28, 5:36 PM EDT	Special Weather Statement	BGM	Madison	54 min
Jun 28, 5:48 PM EDT	Special Weather Statement	BGM	Oneida	42 min
Jun 28, 5:55 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Cortland, Tioga, Tompkins	50 min
Jun 28, 6:06 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Madison	24 min
Jun 28, 6:41 PM EDT	Areal Flood Advisory	BGM	Broome, Cortland, Tioga, Tompkins	3 hr
Jun 28, 6:43 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga	47 min
Jun 28, 6:45 PM EDT	Special Weather Statement	BGM	Otsego	60 min
Jun 28, 7:19 PM EDT	Areal Flood Advisory	BGM	Chenango	3 hr
Jun 28, 7:26 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Delaware, Otsego	49 min
Jun 28, 7:54 PM EDT	Special Weather Statement	BGM	Broome	66 min
Jun 28, 6:58 PM EDT	Special Weather Statement	BGM	Bradford	47 min
Jun 28, 7:14 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	46 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2011 Every severe thunderstorm warning in 2011

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.