Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 24, NWS State College, PA

May 11, 20157 counties in Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 11, 2015, 11:06 PM EDT for 7 counties in Pennsylvania. It was in force for 54 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: May 11, 2015, 11:06 PM EDT (03:06 UTC)
Expired: May 12, 2015, 12:00 AM EDT
In force: 54 min
Issued by: NWS State College, PA
Area: Storm-based polygon

Counties Blair County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Huntingdon County, PA, Mifflin County, PA

The radar

The State College radar (KCCX), 22 km from the middle of the area, began a volume at 03:07 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 11, 8:18 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 00:00Z, 3.1 hours before the alert went out and 190 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: 473 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1868 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

706 
WUUS51 KCTP 120306
SVRCTP
PAC013-023-027-033-035-061-087-120400-
/O.NEW.KCTP.SV.W.0024.150512T0306Z-150512T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1106 PM EDT MON MAY 11 2015

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BLAIR COUNTY IN CENTRAL PENNSYLVANIA...
  MIFFLIN COUNTY IN CENTRAL PENNSYLVANIA...
  HUNTINGDON COUNTY IN CENTRAL PENNSYLVANIA...
  SOUTHEASTERN CAMERON COUNTY IN NORTH CENTRAL PENNSYLVANIA...
  CLINTON COUNTY IN NORTH CENTRAL PENNSYLVANIA...
  CENTRE COUNTY IN CENTRAL PENNSYLVANIA...
  NORTHEASTERN CLEARFIELD COUNTY IN CENTRAL PENNSYLVANIA...

* UNTIL MIDNIGHT EDT

* AT 1106 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS AROUND 60 MPH.
  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR HICKS
  RUN TO NEAR LECONTES MILLS TO NEAR NORTH PHILIPSBURG TO BIRMINGHAM
  TO NEAR ROARING SPRING...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STATE COLLEGE...LOCK HAVEN...LEWISTOWN...HUNTINGDON...BELLEFONTE...
  HOLLIDAYSBURG...TYRONE...PARK FOREST VILLAGE...CARROLL...
  WOODWARD...BOALSBURG...KEATING...PLEASANT GAP...PHILIPSBURG...
  ROARING SPRING...LAMAR...MOUNT UNION...STORMSTOWN...LEMONT AND BALD
  EAGLE.

FOR THOSE DRIVING ON INTERSTATE 80...THIS INCLUDES AREAS BETWEEN THE
WOODLAND AND MILE RUN EXITS...SPECIFICALLY FROM MILE MARKERS 128 TO
193.

THIS INCLUDES INTERSTATE 99 BETWEEN MILE MARKERS 16 AND 22...AND FROM
MILE MARKERS 45 TO 85.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE THUNDERSTORM WIND GUSTS ARE EXPECTED TO PRODUCE DAMAGE. PEOPLE
OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG
BUILDING.

IN ADDITION TO OTHER THREATS...CONTINUOUS LIGHTNING IS OCCURRING WITH
THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURES
LEADING KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4062 7828 4089 7823 4123 7833 4123 7824
      4134 7825 4146 7760 4137 7754 4107 7714
      4085 7737 4070 7735 4069 7730 4061 7749
      4058 7750 4051 7761 4038 7775 4032 7773
      4028 7838 4030 7843 4027 7845 4027 7849
TIME...MOT...LOC 0306Z 261DEG 40KT 4127 7824 4106 7819 4091 7814 4064
7820 4035 7838

$$

LAMBERT

1 follow-up statement

415 
WWUS51 KCTP 120336 RRA
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1136 PM EDT MON MAY 11 2015

PAC013-023-027-033-035-061-087-120400-
/O.CON.KCTP.SV.W.0024.000000T0000Z-150512T0400Z/
BLAIR PA-MIFFLIN PA-HUNTINGDON PA-CAMERON PA-CLINTON PA-CENTRE PA-
CLEARFIELD PA-
1136 PM EDT MON MAY 11 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT
FOR EASTERN BLAIR...MIFFLIN...HUNTINGDON...SOUTHEASTERN CAMERON...
CLINTON...CENTRE AND NORTHEASTERN CLEARFIELD COUNTIES...

AT 1135 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
TAMARACK TO NEAR MONUMENT TO NEAR MILESBURG TO NEAR MCALEVYS FORT TO
NEAR TROUGH CREEK STATE PARK...MOVING EAST AT 45 MPH. 

LOCATIONS IMPACTED INCLUDE...
STATE COLLEGE...LOCK HAVEN...LEWISTOWN...HUNTINGDON...BELLEFONTE...
PARK FOREST VILLAGE...CARROLL...WOODWARD...BOALSBURG...KEATING...
PLEASANT GAP...LAMAR...MOUNT UNION...STORMSTOWN...LEMONT...BURNHAM...
ZION...MARTINSBURG...BELLEVILLE AND HOUSERVILLE.

LAT...LON 4062 7817 4092 7811 4115 7812 4135 7820
      4146 7760 4137 7754 4107 7714 4085 7737
      4070 7735 4069 7730 4061 7749 4058 7750
      4051 7761 4038 7775 4032 7773 4028 7835
TIME...MOT...LOC 0335Z 260DEG 40KT 4140 7780 4116 7774 4096 7774 4065
7780 4032 7802

$$

LAMBERT

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 State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 11, 10:06 PM EDT, 1 hour earlier.

Area forecast discussion, May 11, 10:06 PM EDT, 1 hour before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1006 PM EDT MON MAY 11 2015

.SYNOPSIS...
SUMMERTIME WARMTH AND HUMIDITY WILL COME TO AN END LATE TONIGHT
AND TUESDAY AS A VIGOROUS UPPER TROF AND ASSOCIATED COLD FRONT
CROSSES THE REGION. A FAIRLY WELL-ORGANIZED BAND OF SHOWERS AND
ISOLATED THUNDERSTORMS WILL MOVE INTO THE WEST TONIGHT AS THE
FRONT MOVES THROUGH. COOLER...DRIER AND WINDY CONDITIONS WILL
ARRIVE DURING THE DAYLIGHT HOURS TUESDAY...AND LAST THROUGH
WEDNESDAY NIGHT. MILDER CONDITIONS WILL RETURN FOR THURSDAY AND
FRIDAY AND CONTINUE THIS WEEKEND AS ANOTHER UPPER RIDGE BUILDS
ACROSS THE REGION.

&&

.NEAR TERM /UNTIL 7 AM TUESDAY MORNING/...
STORMS MOVING INTO/THROUGH THE WRN MTNS AND ONE SVR CELL PRODUCED
DAMAGE IN SW WARREN CO. THE CELLS ARE WEAKENING ON THE WHOLE AND
ANTICIPATE WATCH TRIMMING TO COMMENCE SOON. MSO MDLS CONTINUE TO
MAKE NO PRECIP TO THE SE OF AOO/UNV/IPT OVERNIGHT. LEFT IN JUST A
20 POP FOR AN HR OR TWO FOR THAT AREA. ACTUAL COLD FRONT IS BACK
IN INDIANA STATE...WHILE THE ADVANCE TROUGH IS MOVING IN FROM THE
WEST NOW. THIS COULD TOUCH OFF A FEW MORE SHOWERS LATE
TONIGHT/BEFORE SUNRISE IN THE WEST...BUT STABILITY WILL BE HIGHEST
AROUND THAT TIME. WILL KEEP A BREAK IN PRECIP FOR MOST AREAS LATER
TONIGHT AND JUST A 20 POP N THE WEST BEFORE 12Z.

TONIGHT WILL LIKELY BE THE WARMEST NIGHT OF OUR RECENT STRING OF
WARM NIGHTS...DUE TO SURGING LOW LVL MOISTURE AND INCREASING CLOUD
COVER.

&&

.SHORT TERM /7 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/...
FRONT CLEARS SOUTHEASTERN COUNTIES EARLY TUESDAY...WITH WINDY AND
DRIER CONDITIONS IN STORE FOR MOST OF THE REGION. MODEL FORECAST
SOUNDINGS INDICATE MODERATE MIXING POTENTIAL WITH MANY AREAS
SEEING 30-35 MPH GUSTS OR HIGHER. EXPECT HIGHER TERRAIN OF THE
NORTH AND WEST TO SEE SCT -SHRA...WHILE CENTRAL AND SOUTHEAST
AREAS REMAIN PARTLY SUNNY AND DRY.

HIGHS WILL RANGE FROM THE UPPER 60S NORTHWEST TO THE LOWER 80S
LOWER SUSQ RIVER VALLEY.

&&

.LONG TERM /TUESDAY NIGHT THROUGH MONDAY/...
STILL LOOKING AT A FEW SHOWERS ACROSS THE NORTH TUESDAY NIGHT
INTO WED...WITH THE COLD AIR ALOFT.

IT WILL BE BREEZY AND COLDER FROM LATE TUE INTO THU MORNING.
LATER SHIFTS WILL NEED TO MONITOR THE NEED FOR FROST AND
FREEZE PRODUCTS.

MID SHIFT INSERTED SHOWERS INTO THE FCST FOR FRIDAY INTO SAT.
THIS BASED ON WEAK SYSTEM DROPPING SE. WHILE MOISTURE MAY BE
LIMITED...DIRECTIONAL SHEAR WILL BE THERE. I DID CUT BACK
ON THE SHOWERS SOME ON THE FIRST PART OF FRIDAY.

DID ADJUST POPS SOME FOR SUNDAY...AS SYSTEM DROPS SE OF OUR
AREA...DID CUT BACK SOME.

FOR MONDAY...ADJUSTED POPS SOME MORE...AS WE WILL BE ON THE
EASTERN AND NORTHERN EDGE OF THE WARM ADVECTION.

&&

.AVIATION /02Z TUESDAY THROUGH SATURDAY/...
VFR CURRENTLY OVER CENTRAL PENNSYLVANIA WILL BREAK DOWN OVER THE
NEXT FEW HOURS AS A STRONG LINE OF SHOWERS AND THUNDERSTORMS
ASSOCIATED WITH AN APPROACHING COLD FRONT TRACKS ACROSS ALL
AIRFIELDS LATE TONIGHT THROUGH EARLY TUE...BRINGING MORE
WIDESPREAD MVFR CIGS/VSBYS AND SHOWERS AND THUNDERSTORMS. HAVE
GENERALLY LEFT AIRPORTS VFR WITH TEMPORARY RESTRICTIONS IN AND
AROUND THE QUICKLY MOVING STORMS. EXPECT WIND SHIFTS TO THEW WEST
WITH GUTSY IN THE 20 TO 30MPH POSSIBLE. BFD SHOULD BE THE FIRST
AIRPORT AFFECTED WITH JST FOLLOWING BEHIND. THE REMAINDER TAFS
WILL THEN BE AFFECTED FROM 04Z TO 06Z WEST TO EAST. ANY RAIN AND
RESIDUAL MOISTURE COULD COUPLE TO ALLOW FOR PATCHY FOG TUESDAY
MORNING. HOWEVER WITH THE PREDOMINATE FLOW SHIFTING TO THE
NORTHWEST EXPECT WINDY AND DRIER CONDITIONS TO ARRIVE LATER TUE
MORNING...WITH MVFR CIGS POSSIBLE IN THE NORTHWEST AND MAINLY VFR
CONDS ELSEWHERE.

OUTLOOK...

MON...SCT-NUMEROUS AFTERNOON AND EARLY NIGHTTIME TSRA IMPACTS
POSSIBLE. PATCHY MVFR TO IFR IN FOG LATE.

TUE...MORNING LOW CLOUDS AND FOG POSSIBLE...THEN BREEZY AND LESS
HUMID WITH AREAS OF MVFR CIGS ACROSS THE NRN AND WRN MTNS.

WED-THU...VFR.

FRI-SAT...MVFR WITH SCT MAINLY AFTERNOON SHRA/TSRA.

&&

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

&&

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

Hazardous weather outlook, May 11, 10:22 PM EDT, 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1022 PM EDT MON MAY 11 2015

PAZ019-025>028-034>036-045-046-049>053-056>059-063>066-130230-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-BEDFORD-FULTON-
FRANKLIN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
1022 PM EDT MON MAY 11 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ005-006-010-011-130230-
MCKEAN-POTTER-ELK-CAMERON-
1022 PM EDT MON MAY 11 2015

...SEVERE THUNDERSTORM WATCH 168 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

FROST IS POSSIBLE THURSDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ004-130230-
WARREN-
1022 PM EDT MON MAY 11 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

FROST IS POSSIBLE THURSDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ012-017-018-024-033-037-041-042-130230-
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-CAMBRIA-SOMERSET-TIOGA-
NORTHERN LYCOMING-SULLIVAN-
1022 PM EDT MON MAY 11 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

FROST IS POSSIBLE THURSDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 11, 9:16 PM EDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
916 PM EDT MON MAY 11 2015

PAZ004-120215-
WARREN PA-
916 PM EDT MON MAY 11 2015

...STRONG THUNDERSTORMS WILL AFFECT WARREN COUNTY UNTIL 1015 PM
EDT...

AT 916 PM EDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR RICEVILLE TO NEAR
WEST HICKORY TO CLARION... AND MOVING NORTHEAST AT 35 MPH.

40 MPH WIND GUSTS AND HEAVY DOWNPOURS WILL BE POSSIBLE WITH THESE
STORMS.

THE STRONG THUNDERSTORMS WILL BE NEAR...
  COLUMBUS AROUND 935 PM EDT.
  SPRING CREEK AROUND 940 PM EDT.
  CHAPMAN STATE PARK AROUND 945 PM EDT.
  SHEFFIELD AND LOTTSVILLE AROUND 950 PM EDT.
  KINZUA DAM AROUND 1000 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE STARBRICK...
CLARENDON...TIDIOUTE...SUGAR GROVE AND BEAR LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4200 7892 4185 7891 4183 7892 4183 7895
      4162 7896 4162 7961 4198 7961 4200 7957
TIME...MOT...LOC 0116Z 236DEG 32KT 4179 7978 4155 7937 4121 7939

DEVOIR

Special weather statement, May 11, 9:45 PM EDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
945 PM EDT MON MAY 11 2015

PAZ004-005-010-011-120230-
WARREN PA-MCKEAN PA-CAMERON PA-ELK PA-
945 PM EDT MON MAY 11 2015

...STRONG THUNDERSTORMS WILL AFFECT WARREN...MCKEAN...CAMERON...AND
ELK COUNTIES UNTIL 1030 PM EDT...

AT 945 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM NEAR LUDLOW TO NEAR PORTLAND MILLS TO NEAR CLEAR
CREEK STATE PARK...AND MOVING NORTHEAST AT 65 MPH.

45 MPH WIND GUSTS WILL BE POSSIBLE WITH THESE STORMS.

THE STRONG THUNDERSTORMS WILL BE NEAR...
  KANE...WETMORE AND JAMES CITY AROUND 950 PM EDT.
  WESTLINE AROUND 955 PM EDT.
  JOHNSONBURG...WILCOX AND PORTLAND MILLS AROUND 1000 PM EDT.
  RIDGWAY...EAST BRANCH DAM AND CYCLONE AROUND 1005 PM EDT.
  SMETHPORT...REW AND CROSBY AROUND 1010 PM EDT.
  ST. MARYS...PORT ALLEGANY AND BETULA AROUND 1015 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE LEWIS RUN...
UNIVERSITY OF PITTSBURGH - BRADFORD...ELDRED...MOUNT JEWETT AND
BRADFORD AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4200 7821 4149 7820 4144 7838 4134 7891
      4138 7897 4135 7902 4135 7908 4134 7909
      4142 7909 4143 7906 4145 7906 4144 7905
      4145 7905 4145 7898 4144 7896 4162 7896
      4163 7900 4200 7892
TIME...MOT...LOC 0145Z 247DEG 59KT 4168 7896 4144 7896 4130 7915

DEVOIR

Local storm report, May 11, 9:56 PM EDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
956 PM EDT MON MAY 11 2015

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

0935 PM     TSTM WND DMG     TIDIOUTE                41.68N  79.40W
05/11/2015                   WARREN             PA   911 CALL CENTER

            TWO TREES DOWN.

&&

EVENT NUMBER CTP1500040

JMC

Special weather statement, May 11, 10:04 PM EDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1004 PM EDT MON MAY 11 2015

PAZ017-024-025-120300-
CLEARFIELD PA-CAMBRIA PA-BLAIR PA-
1004 PM EDT MON MAY 11 2015

...STRONG THUNDERSTORMS WILL AFFECT CLEARFIELD...CAMBRIA...AND BLAIR
COUNTIES UNTIL 1100 PM EDT...

AT 1004 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM NEAR NEW BETHLEHEM TO NEAR BLACK LICK...AND
MOVING EAST AT 40 MPH.

40 MPH WIND GUSTS AND PEA SIZE HAIL ARE POSSIBLE WITH THESE STORMS.

THE STRONG THUNDERSTORMS WILL BE NEAR...
  BELSANO AROUND 1025 PM EDT.
  NANTY-GLO AROUND 1030 PM EDT.
  EBENSBURG AND NORTHERN CAMBRIA AROUND 1040 PM EDT.
  LORETTO...HASTINGS AND CARROLLTOWN AROUND 1045 PM EDT.
  PATTON AROUND 1050 PM EDT.
  DUBOIS...SANDY AND PRINCE GALLITZIN STATE PARK AROUND 1055 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE LUMBER CITY...
TUNNELHILL...SAINT FRANCIS UNIVERSITY...MT. ALOYSIUS COLLEGE AND
PEOPLES NATURAL GAS FIELD.

FOR THOSE DRIVING ON INTERSTATE 80...THIS INCLUDES AREAS BETWEEN THE
DUBOIS AND PENFIELD EXITS...SPECIFICALLY FROM MILE MARKERS 97 TO 107.

THIS INCLUDES INTERSTATE 99 FROM MILE MARKERS 29 TO 34.

LAT...LON 4072 7880 4113 7880 4120 7877 4121 7869
      4119 7865 4097 7844 4045 7836 4043 7895
TIME...MOT...LOC 0204Z 256DEG 33KT 4105 7939 4050 7915

DEVOIR

Special weather statement, May 11, 10:53 PM EDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1053 PM EDT MON MAY 11 2015

PAZ005-006-011-012-037-120345-
NORTHERN CLINTON PA-TIOGA PA-MCKEAN PA-CAMERON PA-POTTER PA-
1053 PM EDT MON MAY 11 2015

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN CLINTON...TIOGA...
MCKEAN...CAMERON...AND POTTER COUNTIES UNTIL 1145 PM EDT...

AT 1053 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM NEAR WESTON MILLS TO NEAR ROULETTE TO NEAR ELK
RIVER...AND MOVING NORTHEAST AT 30 MPH.

50 MPH WIND GUSTS WILL BE POSSIBLE WITH THESE STORMS.

THE STRONG THUNDERSTORMS WILL BE NEAR...
  SHINGLEHOUSE AROUND 1100 PM EDT.
  GENESEE AROUND 1130 PM EDT.
  COUDERSPORT AROUND 1135 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE SKI DENTON SKI
AREA...OSWAYO...ULYSSES...ELDRED AND AUSTIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD
TO FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4200 7750 4154 7753 4154 7760 4146 7760
      4142 7842 4152 7842 4173 7835 4198 7843
      4200 7841
TIME...MOT...LOC 0253Z 217DEG 28KT 4205 7826 4181 7817 4156 7830

CERU

Local storm report, May 11, 10:56 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1056 PM EDT MON MAY 11 2015

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

1020 PM     TSTM WND DMG     BURNSIDE                40.81N  78.79W
05/11/2015                   CLEARFIELD         PA   911 CALL CENTER

            TREES BLOCKING ROAD.

&&

EVENT NUMBER CTP1500041

JMC

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 9:16 PM EDT	Special Weather Statement	CTP	Warren	59 min
May 11, 9:26 PM EDT	Severe Thunderstorm Warning	CTP	Warren	49 min
May 11, 9:45 PM EDT	Special Weather Statement	CTP	Elk, McKean	45 min
May 11, 10:04 PM EDT	Special Weather Statement	CTP	Cambria, Clearfield	56 min
May 11, 10:37 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield	38 min
May 11, 10:53 PM EDT	Special Weather Statement	CTP	Cameron, Potter	52 min
May 11, 10:59 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Lycoming, Potter, Tioga	61 min
May 11, 11:59 PM EDT	Special Weather Statement	CTP	Clinton, Huntingdon, Juniata, Lycoming, Mifflin, Perry and 3 more	61 min
May 12, 12:11 AM EDT	Special Weather Statement	CTP	Franklin	64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2015 Every 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.