Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS State College, PA

April 25, 2011Tioga County, Pennsylvania

NWS State College, PA issued this special weather statement at Apr 25, 2011, 8:39 PM EDT for Tioga County, Pennsylvania. It was in force for 21 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: Apr 25, 2011, 8:39 PM EDT (00:39 UTC)
Expired: Apr 25, 2011, 9:00 PM EDT
In force: 21 min
Issued by: NWS State College, PA

County Tioga County, PA

The radar

The Binghamton radar (KBGM), 90 km from the middle of the area, began a volume at 00:40 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.7 hours before the alert went out and 191 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: 479 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 337 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 25, 7:57 PM EDT, 42 minutes earlier.

Area forecast discussion, Apr 25, 7:57 PM EDT, 42 minutes before

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Hazardous weather outlook, Apr 25, 2:54 PM EDT, 5 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
254 PM EDT MON APR 25 2011

PAZ004>006-010>012-017>019-024>028-033-034-037-041-042-045-046-
049>053-261900-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-
254 PM EDT MON APR 25 2011

...SEVERE THUNDERSTORM WATCH 202 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND 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.

THERE IS A SLIGHT RISK OF MORE STRONG TO SEVERE STORMS ON
TUESDAY AND WEDNESDAY. THIS IS ESPECIALLY THE CASE FOR LATER
WEDNESDAY...AS A STORM SYSTEM LIFTS NORTHWARD ACROSS THE
OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

PAZ035-036-056>059-063-261900-
FULTON-FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
254 PM EDT MON APR 25 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON INTO
THE EVENING.

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

THERE IS A SLIGHT RISK OF MORE STRONG TO SEVERE STORMS ON
TUESDAY AND WEDNESDAY. THIS IS ESPECIALLY THE CASE FOR LATER
WEDNESDAY...AS A STORM SYSTEM LIFTS NORTHWARD ACROSS THE
OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE BE NEEDED.

PAZ064>066-261900-
ADAMS-YORK-LANCASTER-
254 PM EDT MON APR 25 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...TUESDAY THROUGH SUNDAY.

THERE IS A SLIGHT RISK OF MORE STRONG TO SEVERE STORMS ON
TUESDAY AND WEDNESDAY. THIS IS ESPECIALLY THE CASE FOR LATER
WEDNESDAY...AS A STORM SYSTEM LIFTS NORTHWARD ACROSS THE
OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MS

In the hours before

Local storm report, Apr 25, 6:46 PM EDT, 1 hour 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
646 PM EDT MON APR 25 2011

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

0610 PM     HAIL             KANE                    41.66N  78.81W
04/25/2011  M0.88 INCH       MCKEAN             PA   TRAINED SPOTTER

            HIGH WIND WITH NO DAMAGE AND TORRENTIAL DOWNPOUR WITH
            NO FLOODING

&&

EVENT NUMBER CTP1100021

MACH

Special weather statement, Apr 25, 6:54 PM EDT, 1 hour 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
654 PM EDT MON APR 25 2011

PAZ037-041-042-252345-
NORTHERN LYCOMING PA-SULLIVAN PA-TIOGA PA-
654 PM EDT MON APR 25 2011

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN LYCOMING...NORTHWESTERN
SULLIVAN AND SOUTHEASTERN TIOGA COUNTIES...

AN AREA OF STRONG THUNDERSTORMS COVERED PORTIONS OF LYCOMING...
SULLIVAN AND TIOGA COUNTIES AT 647 PM EDT. THE STRONG THUNDERSTORMS
WERE GENERALLY MOVING NORTHEAST AT 40 MPH.

SMALL HAIL AND GUSTY WINDS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 6...ROUTE 15...
STATE ROAD 14.

LAT...LON 4181 7689 4161 7687 4159 7676 4157 7655
      4139 7711 4151 7728 4189 7691 4188 7690

FORECASTER: DEVOIR

Special weather statement, Apr 25, 7:23 PM EDT, 1 hour 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
723 PM EDT MON APR 25 2011

PAZ005-006-010-011-260030-
CAMERON PA-ELK PA-MCKEAN PA-POTTER PA-
723 PM EDT MON APR 25 2011

...STRONG THUNDERSTORMS WILL AFFECT ELK...MCKEAN...NORTHWESTERN
CAMERON AND NORTHWESTERN POTTER COUNTIES...

AN LINE OF STRONG THUNDERSTORMS COVERED PORTIONS OF CAMERON...ELK...
MCKEAN AND POTTER COUNTIES AT 721 PM EDT. THE STRONG THUNDERSTORMS
WERE GENERALLY MOVING NORTHEAST AT 45 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STRONG
THUNDERSTORMS.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 6...ROUTE 219...
STATE ROAD 46...STATE ROAD 59...STATE ROAD 66...STATE ROAD 120...
STATE ROAD 255...STATE ROAD 446.

LAT...LON 4189 7818 4162 7819 4127 7877 4135 7894
      4139 7897 4156 7891 4182 7895 4186 7891
      4201 7869 4201 7814

FORECASTER: DEVOIR

Special weather statement, Apr 25, 8:06 PM EDT, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
806 PM EDT MON APR 25 2011

PAZ037-260030-
TIOGA PA-
806 PM EDT MON APR 25 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN TIOGA COUNTY...

AT 800 PM EDT...A STRONG THUNDERSTORM WAS NEAR MORRIS...MOVING
NORTHEAST AT 35 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR MANSFIELD AROUND 820 PM AND ROSEVILLE AROUND
830 PM.

LAT...LON 4199 7692 4180 7689 4160 7721 4174 7738
      4201 7701 4200 7693

FORECASTER: KF

Special weather statement, Apr 25, 8:22 PM EDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
822 PM EDT MON APR 25 2011

PAZ024-025-033-034-260100-
BEDFORD PA-BLAIR PA-CAMBRIA PA-SOMERSET PA-
822 PM EDT MON APR 25 2011

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CAMBRIA...NORTH CENTRAL
BEDFORD...NORTHEASTERN SOMERSET AND WESTERN BLAIR COUNTIES...

AT 814 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
NORTHERN CAMBRIA TO JENNERSTOWN...MOVING EAST AT 35 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
THESE STORMS WILL BE NEAR VINCO AROUND 830 PM...WILMORE AROUND 840
PM...PORTAGE AROUND 850 PM AND HORSESHOE CURVE AROUND 900 PM.

LAT...LON 4027 7909 4038 7899 4073 7881 4073 7831
      4014 7856 4010 7916

FORECASTER: KF

Special weather statement, Apr 25, 8:39 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 8:06 PM EDT	Special Weather Statement	CTP	Tioga	24 min
Apr 25, 8:22 PM EDT	Special Weather Statement	CTP	Cambria	38 min
Apr 25, 8:48 PM EDT	Special Weather Statement	CTP	Clearfield, Tioga	42 min
Apr 25, 9:20 PM EDT	Special Weather Statement	CTP	Clinton, Tioga	25 min
Apr 25, 9:50 PM EDT	Special Weather Statement	CTP	Clinton, Lycoming	25 min
Apr 25, 10:07 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	23 min
Apr 25, 10:14 PM EDT	Special Weather Statement	CTP	Lycoming, Union	31 min
Apr 25, 10:31 PM EDT	Special Weather Statement	CTP	Lycoming, Sullivan, Union	29 min
Apr 25, 10:57 PM EDT	Special Weather Statement	CTP	Montour, Sullivan, Union	33 min
Apr 25, 11:29 PM EDT	Special Weather Statement	CTP	Columbia, Montour	31 min
Apr 26, 8:50 AM EDT	Special Weather Statement	CTP	Warren	40 min
Apr 26, 11:51 AM EDT	Special Weather Statement	CTP	McKean	39 min
Apr 26, 1:44 PM EDT	Special Weather Statement	CTP	Centre	46 min
Apr 26, 1:58 PM EDT	Special Weather Statement	CTP	Clinton	62 min
Apr 26, 2:08 PM EDT	Special Weather Statement	CTP	Somerset	52 min
Apr 26, 2:32 PM EDT	Special Weather Statement	CTP	Tioga	58 min
Apr 26, 2:47 PM EDT	Special Weather Statement	CTP	Clinton	43 min
Apr 26, 2:54 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	66 min
Apr 26, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	56 min
Apr 26, 3:09 PM EDT	Special Weather Statement	CTP	Cambria	81 min
Apr 26, 3:21 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Somerset	54 min
Apr 26, 3:28 PM EDT	Special Weather Statement	CTP	Lycoming	77 min
Apr 26, 4:01 PM EDT	Special Weather Statement	CTP	Tioga	29 min
Apr 26, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Huntingdon	65 min
Apr 26, 4:19 PM EDT	Special Weather Statement	CTP	Elk	56 min
Apr 26, 4:21 PM EDT	Special Weather Statement	CTP	Potter	39 min
Apr 26, 4:22 PM EDT	Special Weather Statement	CTP	Clinton	68 min
Apr 26, 4:32 PM EDT	Special Weather Statement	CTP	Lycoming	43 min
Apr 26, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan, Tioga	35 min
Apr 26, 5:03 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Clearfield, Somerset	57 min
Apr 26, 5:03 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Potter, Tioga	42 min
Apr 26, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	61 min
Apr 26, 5:25 PM EDT	Special Weather Statement	CTP	Somerset	50 min
Apr 26, 5:49 PM EDT	Special Weather Statement	CTP	Cameron, Clearfield	56 min
Apr 26, 5:58 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Centre, Clearfield	47 min
Apr 26, 6:09 PM EDT	Special Weather Statement	CTP	Potter	21 min
Apr 26, 6:14 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	61 min
Apr 26, 6:21 PM EDT	Special Weather Statement	CTP	Blair	39 min
Apr 26, 6:30 PM EDT	Special Weather Statement	CTP	Centre	60 min
Apr 26, 6:32 PM EDT	Special Weather Statement	CTP	Tioga	13 min
Apr 26, 6:36 PM EDT	Special Weather Statement	CTP	Bedford	24 min
Apr 26, 6:39 PM EDT	Special Weather Statement	CTP	Clinton, Tioga	66 min
Apr 26, 6:44 PM EDT	Areal Flood Advisory	CTP	Cameron, Centre, Clearfield, Clinton, Lycoming, McKean and 3 more	3 hr
Apr 26, 6:58 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Huntingdon, Juniata, Mifflin	62 min
Apr 26, 7:11 PM EDT	Special Weather Statement	CTP	Bedford	34 min
Apr 26, 7:12 PM EDT	Flash Flood Warning	CTP	Clinton, Lycoming, Potter, Tioga	3 hr
Apr 26, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan, Tioga	55 min
Apr 26, 7:27 PM EDT	Special Weather Statement	CTP	Clinton	33 min
Apr 26, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Juniata, Mifflin, Snyder, Union	67 min

Nearby

Special Weather Statements in Pennsylvania, 2011 Every special weather statement 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.