Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS State College, PA

September 8, 2011Lancaster County, Pennsylvania

NWS State College, PA issued this special weather statement at Sep 8, 2011, 5:57 AM EDT for Lancaster County, Pennsylvania. It was in force for 63 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: Sep 8, 2011, 5:57 AM EDT (09:57 UTC)
Expired: Sep 8, 2011, 7:00 AM EDT
In force: 63 min
Issued by: NWS State College, PA

County Lancaster County, PA

The radar

The Dover AFB radar (KDOX), 148 km from the middle of the area, began a volume at 09:56 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 10.0 hours before the alert went out and 157 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: 36 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 211 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 Sep 8, 5:40 AM EDT, 17 minutes earlier.

Area forecast discussion, Sep 8, 5:40 AM EDT, 17 minutes before

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Hazardous weather outlook, Sep 8, 3:45 AM EDT, 2 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
345 AM EDT THU SEP 8 2011

PAZ006-012-018-019-026>028-036-037-041-042-045-046-049>053-056>059-
063>066-090745-
POTTER-NORTHERN CLINTON-NORTHERN CENTRE-SOUTHERN CENTRE-HUNTINGDON-
MIFFLIN-JUNIATA-FRANKLIN-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
345 AM EDT THU SEP 8 2011

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

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

   FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ004-005-010-011-017-024-025-033>035-090745-
WARREN-MCKEAN-ELK-CAMERON-CLEARFIELD-CAMBRIA-BLAIR-SOMERSET-BEDFORD-
FULTON-
345 AM EDT THU SEP 8 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Sep 8, 1:58 AM EDT, 3 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
158 AM EDT THU SEP 8 2011

PAZ058-059-080630-
LEBANON PA-SCHUYLKILL PA-
158 AM EDT THU SEP 8 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL LEBANON AND CENTRAL
SCHUYLKILL COUNTIES...

AT 154 AM EDT...A STRONG THUNDERSTORM WAS NEAR SAND HILL...MOVING
NORTH AT 40 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT PINE GROVE AND JOE ZERBEY AIRPORT.

ROTATION HAS BEEN DETECTED IN THIS STORM. BE PREPARED TO TAKE
ACTION IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...
I-78 BETWEEN MILE MARKERS 0 AND 8...I-81 BETWEEN MILE MARKERS 87 AND
117.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 22...ROUTE
209...ROUTE 422.

LAT...LON 4051 7627 4051 7634 4049 7643 4042 7630
      4029 7634 4033 7658 4074 7649 4075 7646
      4071 7621

FORECASTER: STEINBUGL

Special weather statement, Sep 8, 2:17 AM EDT, 3 hours 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
217 AM EDT THU SEP 8 2011

PAZ051>053-080645-
COLUMBIA PA-MONTOUR PA-NORTHUMBERLAND PA-
217 AM EDT THU SEP 8 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL NORTHUMBERLAND...
SOUTHEASTERN MONTOUR AND SOUTHWESTERN COLUMBIA COUNTIES...

AT 213 AM EDT...A STRONG THUNDERSTORM WAS NEAR LECK KILL...MOVING
NORTH AT 25 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT FARNSWORTH...ELYSBURG AND MECHANICSVILLE.

ROTATION HAS BEEN DETECTED IN THIS STORM. BE PREPARED TO TAKE
ACTION IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED.

THIS WILL IMPACT I-80 BETWEEN MILE MARKERS 222 AND 228.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11...STATE
ROAD 61.

LAT...LON 4074 7648 4067 7667 4068 7674 4102 7667
      4098 7639

FORECASTER: STEINBUGL

Special weather statement, Sep 8, 3:16 AM EDT, 2 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
316 AM EDT THU SEP 8 2011

PAZ056-063>065-080815-
ADAMS PA-CUMBERLAND PA-PERRY PA-YORK PA-
316 AM EDT THU SEP 8 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL PERRY...EASTERN
CUMBERLAND...NORTHEASTERN ADAMS AND NORTHWESTERN YORK COUNTIES...

AT 314 AM EDT...A STRONG THUNDERSTORM WAS NEAR HEIDLERSBURG...MOVING
NORTH AT 30 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT YORK SPRINGS...BOILING SPRINGS...CARLISLE SPRINGS...
SHERMANSDALE AND NEW BLOOMFIELD.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 221 AND 235...I-81 BETWEEN
MILE MARKERS 43 AND 61.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11...ROUTE
11/15...ROUTE 15...ROUTE 30...STATE ROAD 94.

LAT...LON 3982 7721 4046 7730 4045 7698 4044 7698
      4042 7701 4038 7703 4036 7702 4036 7698
      3983 7698

FORECASTER: MARTIN

Special weather statement, Sep 8, 3:44 AM EDT, 2 hours 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
344 AM EDT THU SEP 8 2011

PAZ058-080830-
SCHUYLKILL PA-
344 AM EDT THU SEP 8 2011

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

AT 343 AM EDT...A STRONG THUNDERSTORM WAS NEAR HAMBURG...MOVING NORTH
AT 30 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT DEER LAKE...NEW RINGGOLD...SNYDERS AND COALDALE.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 209...STATE ROAD
61...STATE ROAD 309.

LAT...LON 4069 7583 4064 7598 4057 7601 4058 7605
      4056 7608 4056 7612 4088 7596 4081 7588
      4075 7577 4073 7576

FORECASTER: MARTIN

Special weather statement, Sep 8, 5:19 AM EDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
519 AM EDT THU SEP 8 2011

PAZ065-066-080945-
LANCASTER PA-YORK PA-
519 AM EDT THU SEP 8 2011

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL YORK AND LANCASTER
COUNTIES...

AT 513 AM EDT...A STRONG THUNDERSTORM WAS NEAR BROGUE...MOVING
NORTHEAST AT 35 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT MILLERSVILLE...LANCASTER AND LITITZ.

WEAK ROTATION HAS BEN DETECTED IN THIS STORM. BE PREPARED TO TAKE
SHELTER IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED.

THIS WILL IMPACT THE PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 272
AND 277.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...STATE HIGHWAY
283...ROUTE 30...ROUTE 222...ROUTE 322...STATE ROAD 501.

LAT...LON 3984 7666 4025 7633 4026 7629 4015 7607
      3975 7643

FORECASTER: MARTIN

Special weather statement, Sep 8, 5:57 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
557 AM EDT THU SEP 8 2011

PAZ059-065-066-081100-
LANCASTER PA-LEBANON PA-YORK PA-
557 AM EDT THU SEP 8 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN LEBANON...EASTERN YORK
AND LANCASTER COUNTIES...

AT 549 AM EDT...A STRONG THUNDERSTORM WAS NEAR NORRISVILLE...MOVING
NORTH AT 30 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT SUNNYBURN...DELTA...FELTON...AND WINTERSTOWN...SAFE HARBOR...
SHENKS FERRY...BROGUE...AND HOLTWOOD...MILLERSVILLE AND MOUNTVILLE.

WEAK ROTATION HAS BEEN DETECTED IN THIS STORM. BE PREPARED SEEK
SHELTER IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED.

IN ADDITION...OTHER STORMS ARE FORMING ACROSS NORTHERN MARYLAND...
WHICH COULD ALSO ROTATE AS THEY MOVE NORTH AT 30 MPH.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 263 AND 295...I-78 BETWEEN
MILE MARKERS 7 AND 8...I-83 BETWEEN MILE MARKERS 1 AND 8.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...STATE HIGHWAY
283...ROUTE 22...ROUTE 30...ROUTE 222...ROUTE 322...ROUTE 422...STATE
ROAD 41...STATE ROAD 501.

LAT...LON 4047 7639 4014 7587 4011 7593 4004 7593
      3996 7599 3987 7598 3972 7610 3971 7674
      3972 7674

FORECASTER: MARTIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 10:09 PM EDT	Flash Flood Warning Emergency	CTP	Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 4 more	6 hr
Sep 7, 11:11 PM EDT	Flash Flood Warning	CTP	Adams, Cumberland, Perry	6 hr
Sep 8, 12:33 AM EDT	Special Weather Statement	CTP	Dauphin	27 min
Sep 8, 12:55 AM EDT	River Flood Warning	CTP	Tioga	8 hr
Sep 8, 12:59 AM EDT	Areal Flood Warning	CTP	Dauphin, Lancaster, Lebanon, York	8 hr
Sep 8, 1:05 AM EDT	Special Weather Statement	CTP	Dauphin	25 min
Sep 8, 1:30 AM EDT	Special Weather Statement	CTP	Lebanon	30 min
Sep 8, 1:33 AM EDT	Special Weather Statement	CTP	Dauphin	27 min
Sep 8, 1:52 AM EDT	Special Weather Statement	CTP	Northumberland	23 min
Sep 8, 1:58 AM EDT	Special Weather Statement	CTP	Lebanon, Schuylkill	32 min
Sep 8, 2:17 AM EDT	Special Weather Statement	CTP	Northumberland	28 min
Sep 8, 3:16 AM EDT	Special Weather Statement	CTP	Perry	59 min
Sep 8, 3:44 AM EDT	Special Weather Statement	CTP	Schuylkill	46 min
Sep 8, 4:01 AM EDT	Areal Flood Warning	CTP	Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 4 more	34 hr
Sep 8, 5:01 AM EDT	Areal Flood Warning	CTP	Adams, Cumberland, Perry	22 hr
Sep 8, 5:19 AM EDT	Special Weather Statement	CTP	Lancaster	26 min
Sep 8, 7:02 AM EDT	Special Weather Statement	CTP	Lancaster	58 min
Sep 8, 7:46 AM EDT	River Flood Warning	CTP	Lycoming	8 hr
Sep 8, 7:53 AM EDT	Special Weather Statement	CTP	Lancaster	52 min
Sep 8, 9:22 AM EDT	Areal Flood Warning	CTP	Dauphin, Lancaster, Lebanon, York	24 hr
Sep 8, 7:59 PM EDT	Flash Flood Watch	CTP	Adams, Bedford, Blair, Cumberland, Franklin, Fulton and 5 more	8 hr

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.