Tornadoes and Hail in Pennsylvania, June 12, 2011

Name: Tornadoes and Hail in Pennsylvania, June 12, 2011
Start: 2011-06-12T12:45
End: 2011-06-12T14:31
Location: Pennsylvania

June 12, 2011 · NWS CTP · 10 events in 3 counties and zones

Severe thunderstorms produced damage, and spawned two tornadoes during the afternoon of June 12th, 2011 in the Lower Susquehanna Region of Pennsylvania.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $40,000
Crop damage: None recorded
Events: 10

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS CTP wrote it up.

Severe thunderstorms produced damage, and spawned two tornadoes during the afternoon of June 12th, 2011 in the Lower Susquehanna Region of Pennsylvania.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before the first event at Jun 12, 9:13 AM EST, 3 hours 32 minutes earlier.

Area forecast discussion, Jun 12, 9:13 AM EST, 3 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1013 AM EDT SUN JUN 12 2011

.SYNOPSIS...
A COLD FRONT WILL MOVE THROUGH THIS AFTERNOON. NORTHWESTERLY FLOW
ALOFT THIS WEEK WILL LEAD TO A MAINLY DRY FORECAST THROUGH MID
WEEK...BUT ISOLATED SHOWERS ARE POSSIBLE EACH DAY. THEN THE FLOW
WILL TURN MORE TO THE WEST FOR THE LATTER HALF OF THE WEEK...AND
CREATE A BETTER CHANCE FOR SHOWERS AND THUNDERSTORMS.

&&

.NEAR TERM /UNTIL 7 PM THIS EVENING/...
DRIER AIR WILL TAKE SOME TIME TO WORK IN LATER TODAY...BUT THE
WIND SHIFT TO THE WEST IS ALREADY INTO THE NW. SHOWERS POPPING UP
IN THE W SEEM TO BE ALONG THE WIND SHIFT AND ASSOCIATED WITH THE
SHORT WAVE PUSHING ACROSS LAKE ERIE AND INTO WRN NY STATE. SPC HAS
STARTED TO MENTION THE ERN HALF OF THE AREA IN THE DAY 1
OUTLOOK...AS CAPES IN THE EAST DO RISE ABOVE 1200J/KG AND DAYTIME
HEATING MIXING SHOULD BE GOOD WITH MINOR/SHORT-LIVED CLEAR SLOT
MOVING IN NOW AND WILL BE THERE FOR LATE MORNING/EARLY AFTN. UNI-
DIR SHEAR TODAY IN THE WEST...BUT LLVL HELICITY COULD BE ENHANCED
BY WEAK ERLY FLOW IN THE EAST. MID LEVEL WINDS NOT ALL THAT
IMPRESSIVE AT 30-40KTS PER LATEST RUC. TOPS COULD GET ABOVE
30KFT AND WBZ AROUND 9-10KFT. ADJ POPS AND TIMING OF SHRA/TSRA
JUST SLIGHTLY.

&&

.SHORT TERM /7 PM THIS EVENING THROUGH 6 AM MONDAY/...
AS THE SYSTEM MOVES TO THE NE EXPECT CLEARING SKIES AND DRIER
CONDITIONS OVERNIGHT TO DOMINATE.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
MUCH COOLER CONDITIONS TO START THE EXTENDED PERIOD AS 5H CLOSED
LOW OVER QUEBEC DROPS SOUTHEASTWARD THROUGH NEW ENGLAND AND INTO
THE GULF OF MAINE MON-WED. THIS WILL KEEP BELOW NORMAL TEMPS AND
AT LEAST A SLIGHT CHANCE OF SHOWERS THANKS TO STEEP LAPSE RATES
EACH AFTERNOON OVER CENTRAL PA THROUGH MID WEEK.

AFTER THAT...RIDGING RETURNS FOR MIDWEEK AS WED/THU WILL SEE A
RETURN OF WARMER TEMPERATURES /AT OR SLIGHTLY ABOVE
NORMAL/...THOUGH GFS/ECMWF BECOME OUT OF PHASE BY THIS TIME. THE
NEXT CHC OF RAIN SHOULD HOLD OFF UNTIL AT LEAST WED NIGHT...WHEN
AN MCS MAY ENCROACH FROM THE WEST. INCREASING CHANCES FOR
SCATTERED TSTMS THUR-FRI AS THE SFC HIGH AND UPPER RIDGE WEAKEN
AND SLIDE OFF THE MID ATLC COAST...ALLOWING A FNTL SYS TO APPROACH
THE REGION FROM THE MIDWEST.

&&

.AVIATION /14Z SUNDAY THROUGH THURSDAY/...
ISOLD PRECIP IS POSS UNTIL LATE AM IN THE WRN TAFS...AND SCT
STORMS ARE EXPECTED IN THE E THIS AFTN AS THE DRIER AIR ARRIVES.
OTHERWISE VFR OUTSIDE THE TS/SHRA. ANY CONVECTION SHOULD BE OVER
BY/SHORTLY AFTER 00Z.

OUTLOOK...
MON-TUE...MAINLY VFR.
WED-THU...SCT SHRA/TSRA.

&&

.HYDROLOGY...
ALL FLWS HAVE BEEN CANCELLED...BUT WATER-LOGGED GROUND IN THE SE
COULD LEAD TO ADDTNL MINOR/SMALL STREAM FLOODING THIS AFTN/EVE...AS
THUNDERSTORMS ARE EXPECTED AGAIN. ANY ADDTNL SIG RAIN MAY PUSH THE
LARGER CREEKS UP AS WELL.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

SYNOPSIS...DANGELO/CERU
NEAR TERM...DANGELO
SHORT TERM...ROSS/CERU
LONG TERM...DEVOIR/RXR
AVIATION...CERU
HYDROLOGY...DANGELO

Hazardous weather outlook, Jun 12, 10:16 AM EST, 2 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1116 AM EDT SUN JUN 12 2011

PAZ004>006-010>012-017>019-024>027-033>035-037-041-045-131530-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
SOMERSET-BEDFORD-FULTON-TIOGA-NORTHERN LYCOMING-SOUTHERN CLINTON-
1116 AM EDT SUN JUN 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY.

PAZ028-036-042-046-049>053-056>059-063>066-131530-
JUNIATA-FRANKLIN-SULLIVAN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
1116 AM EDT SUN JUN 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WITH SMALL HAIL AND GUSTY WINDS ARE POSSIBLE THIS
AFTERNOON AND EARLY THIS EVENING AS COOLER AND DRIER AIR MOVES IN
FROM THE WEST.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

In the hours before

Special weather statement, Jun 12, 10:49 AM EST, 1 hour 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1149 AM EDT SUN JUN 12 2011

PAZ026-027-121630-
HUNTINGDON PA-MIFFLIN PA-
1149 AM EDT SUN JUN 12 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL MIFFLIN AND NORTHEASTERN
HUNTINGDON COUNTIES...

AT 1147 AM EDT...A STRONG THUNDERSTORM WAS NEAR WHIPPLE DAM STATE
PARK...MOVING EAST AT 25 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR MCALEVYS FORT AROUND 1155 AM...BELLEVILLE
AROUND 1210 PM...REEDSVILLE AROUND 1225 PM AND YEAGERTOWN AROUND
1230 PM.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 22/522...ROUTE
322.

LAT...LON 4065 7797 4073 7788 4073 7778 4072 7778
      4073 7772 4072 7771 4073 7768 4073 7745
      4052 7764

FORECASTER: DANGELO

Special weather statement, Jun 12, 11:28 AM EST, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1228 PM EDT SUN JUN 12 2011

PAZ033-034-121700-
BEDFORD PA-SOMERSET PA-
1228 PM EDT SUN JUN 12 2011

...A STRONG THUNDERSTORM WILL AFFECT BEDFORD AND NORTHEASTERN
SOMERSET COUNTIES...

AT 1224 PM EDT...A STRONG THUNDERSTORM WAS NEAR NEW PARIS...MOVING
SOUTHEAST AT 30 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR CESSNA AROUND 1240 PM...EVERETT AROUND 1250
PM AND BREEZEWOOD AROUND 100 PM.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 122 AND 165...I-70 BETWEEN
MILE MARKERS 147 AND 150...I-99 BETWEEN MILE MARKERS 0 AND 14.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 30...ROUTE
220.

LAT...LON 4007 7906 4024 7872 4024 7866 4028 7865
      4031 7859 4029 7851 4024 7845 4027 7845
      4016 7813 4009 7820 4005 7818 4004 7821
      4001 7820 3983 7829 3972 7838 3972 7843

FORECASTER: RXR

Special weather statement, Jun 12, 12:13 PM EST, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
113 PM EDT SUN JUN 12 2011

PAZ028-050-052-056>058-063-121745-
CUMBERLAND PA-DAUPHIN PA-JUNIATA PA-NORTHUMBERLAND PA-PERRY PA-
SCHUYLKILL PA-SNYDER PA-
113 PM EDT SUN JUN 12 2011

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL JUNIATA...NORTH
CENTRAL CUMBERLAND...NORTHERN DAUPHIN...PERRY...SOUTHEASTERN
SNYDER...SOUTHWESTERN NORTHUMBERLAND AND WEST CENTRAL SCHUYLKILL
COUNTIES...

AT 107 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
RESLER TO BLACKLOG...MOVING EAST AT 20 MPH.

VERY HEAVY RAIN AND WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE
STORMS. THE RAIN WILL CAUSE WATER TO POND ON ROADS AND FILL POOR
DRAINAGE AREAS AND CAUSE RAPID RISES ON SMALL STREAMS AND
CREEKS. THESE STORMS WILL BE NEAR REBUCK AROUND 120 PM...LECK KILL
AROUND 130 PM...ROUGH AND READY AROUND 140 PM.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 210 AND 216...I-81 BETWEEN
MILE MARKERS 106 AND 108.

LAT...LON 4037 7775 4042 7771 4083 7676 4061 7640
      4017 7742

FORECASTER: LA CORTE

Special weather statement, Jun 12, 12:22 PM EST, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
122 PM EDT SUN JUN 12 2011

PAZ026-034>036-121745-
BEDFORD PA-FRANKLIN PA-FULTON PA-HUNTINGDON PA-
122 PM EDT SUN JUN 12 2011

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT FULTON...SOUTH CENTRAL
HUNTINGDON...SOUTHERN BEDFORD AND WESTERN FRANKLIN COUNTIES...

AT 119 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
WATERFALL TO SALUVIA TO CLEARVILLE...MOVING SOUTHEAST AT 30 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. VERY HEAVY RAIN
WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS
AND FILL POOR DRAINAGE AREAS. THE RAIN WILL CAUSE RAPID RISES ON
SMALL STREAMS AND CREEKS. THESE STORMS WILL BE NEAR FORT LITTLETON
AROUND 130 PM...NEEDMORE AROUND 140 PM AND BIG COVE TANNERY AROUND
150 PM.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 162 AND 189...I-70 BETWEEN
MILE MARKERS 148 AND 170.

LAT...LON 3972 7876 4000 7822 4021 7810 4004 7760
      3984 7773 3972 7802

FORECASTER: LA CORTE

Local storm report, Jun 12, 12:26 PM EST, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
126 PM EDT SUN JUN 12 2011

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

0700 PM     TSTM WND DMG     4 NW LEBANON            40.38N  76.48W
06/11/2011                   LEBANON            PA   NWS STORM SURVEY

            A SWATH OF CORN STALKS WERE BLOWN DOWN IN A FANNED OUT
            PATTERN. 4 TREES BLOWN DOWN ALSO. ESTIMATED WIND SPEED
            85 MPH

&&

EVENT NUMBER CTP1100283

KREKELER

Local storm report, Jun 12, 12:27 PM EST, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
127 PM EDT SUN JUN 12 2011

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

0705 PM     TSTM WND DMG     4 NW LEBANON            40.38N  76.48W
06/11/2011                   LEBANON            PA   NWS STORM SURVEY

            4 TO 6 TREES BLOWN DOWN...KNOCKING DOWN WIRES AND POWER
            POLES. ESTIMATED WIND SPEED 85 MPH

&&

EVENT NUMBER CTP1100284

KREKELER

The radar

The State College radar (KCCX), 102 km away, was scanning. The volume nearest the first event began at 17:46 UTC.

Open the radar archive at this moment

Event by event

4 hail, 4 thunderstorm wind, 2 tornado. Local standard time, as filed.

Hail, Perry

When: June 12, 12:45 PM EST
Where: Perry County, 1.05 mi W of New Buffalo
Measured: 1 in hail
Reported by: Public
Coordinates: 40.450, -76.970

Quarter size (1 inch diameter) hail reported in New Buffalo.

Hail, Dauphin

When: June 12, 12:50 PM EST
Where: Dauphin County, 0.53 mi W of Halifax
Measured: 1 in hail
Reported by: Public
Coordinates: 40.470, -76.930

Quarter size (1 inch diameter) hail reported in Halifax.

Hail, York

When: June 12, 1:45 PM EST
Where: York County, 0.87 mi SE of Yocumtown
Measured: 0.88 in hail
Reported by: Public
Coordinates: 40.160, -76.790

Nickel size (0.88 inch diameter) hail lasted for 10 minutes in Valley Green.

Hail, York

When: June 12, 1:55 PM EST
Where: York County, 0.53 mi E of Newberrytown
Measured: 1 in hail
Reported by: Public
Coordinates: 40.130, -76.790

Quarter size (1 inch diameter) hail reported in Etters near Goldsboro.

Thunderstorm Wind, York

When: June 12, 2:12 PM EST
Where: York County, 1.06 mi E of Lightner
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Fire Department/Rescue
Coordinates: 39.980, -76.700

Thunderstorm winds estimated near 60 mph knocked down numerous trees in Springettsbury Township.

Thunderstorm Wind, York

When: June 12, 2:12 PM EST
Where: York County, Hallam
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Fire Department/Rescue
Coordinates: 40.000, -76.600

Thunderstorm winds estimated near 60 mph knocked down trees in Hallam.

Thunderstorm Wind, York

When: June 12, 2:12 PM EST
Where: York County, 0.69 mi S of Wrightsville
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: State Official
Coordinates: 40.020, -76.530

Thunderstorm winds estimated near 60 mph knocked down trees near Wrightsville.

Thunderstorm Wind, York

When: June 12, 2:15 PM EST
Where: York County, 0.87 mi SE of York
Measured: 50 kt (58 mph) estimated gust
Property damage: $5,000
Reported by: Fire Department/Rescue
Coordinates: 39.940, -76.710

Thunderstorm winds estimated near 60 mph knocked down numerous trees in York Township.

Tornado, York

When: June 12, 2:25 PM EST to 2:28 PM EST
Where: York County, 0.43 mi SE of Windsor to 1.67 mi NE of Springvale
Rating: EF1
Path length: 1.75 mi
Path width: 100 yd
Property damage: $10,000
Reported by: NWS Storm Survey
Coordinates: 39.915, -76.575

The National Weather Service in State College surveyed storm damage in York County and determined that an EF1 tornado touched down near Windsor during the afternoon of June 12, 2011. The weak EF1 tornado, with peak winds estimated around 90 mph, touched down in East Windsor at 1525 EDT near State Route 624 and Maryland Avenue. The storm traveled to the southeast, and lifted just east of Pleasant Grove Road near State Route 74. Six homes were affected, with trees falling near or on them. Overall, about 50 trees were damaged or uprooted. There were no injuries or fatalities.

Tornado, York

When: June 12, 2:30 PM EST to 2:31 PM EST
Where: York County, 1.22 mi S of Windsor to 0.49 mi NNE of Springvale
Rating: EF0
Path length: 1.15 mi
Path width: 50 yd
Property damage: $10,000
Reported by: NWS Storm Survey
Coordinates: 39.902, -76.579

A National Weather Service survey team and staff from the York County Emergency Management Agency concluded that an EF0 tornado, with peak winds around 75 mph, touched down briefly during the afternoon of June 12th 2011. The tornado touched down at 1530 EDT about 1/4 mile northeast of Springvale, east of Red Lion. The tornado traveled to the southeast, and lifted just south of Bahnsmill Road at 1531 EDT. Several homes were affected, with one tree down on a house. A total of about 15 trees were damaged or downed. There were no injuries or fatalities.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Pennsylvania in 2011 Every state in 2011 This day in weather history The tornado archive for Pennsylvania, 2011 Warnings in Pennsylvania, June 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 300735, 300736, 300737, 300739, 300740, 300741, 300742, 300743, 299238, 299242.