Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

April 21, 2012Lebanon County, Pennsylvania

NWS State College, PA issued this special weather statement at Apr 21, 2012, 5:12 PM EDT for Lebanon County, Pennsylvania. It was in force for 33 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 21, 2012, 5:12 PM EDT (21:12 UTC)
Expired
Apr 21, 2012, 5:45 PM EDT
In force
33 min
Issued by
NWS State College, PA

County Lebanon County, PA

The radar

The State College radar (KCCX), 151 km from the middle of the area, began a volume at 21:15 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 12:00Z, 9.2 hours before the alert went out and 175 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2012-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2012-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
912 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
89 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.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 21, 4:01 PM EDT, 1 hour 11 minutes earlier.

Area forecast discussion, Apr 21, 4:01 PM EDT, 1 hour 11 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
401 PM EDT SAT APR 21 2012

.SYNOPSIS...
A COLD FRONT WILL PUSH THROUGH THE CENTRAL MOUNTAINS THIS
AFTERNOON AND INTO EASTERN PENNSYLVANIA BEFORE STALLING THERE
TONIGHT. AN AREA OF LOW PRESSURE WILL ORGANIZE ALONG THE ATLANTIC
COAST AND MOVE NORTHWARD ON SUNDAY. THIS STORM WILL DEEPEN
SIGNIFICANTLY ALONG THE NEW JERSEY COAST SUNDAY NIGHT AND
MONDAY...DRAGGING COLD AIR INTO WESTERN AND CENTRAL PENNSYLVANIA.
THIS WILL BRING A MIX OF RAIN AND SNOW...WITH ACCUMULATING SNOW
OVER HIGHER ELEVATIONS OF THE WEST CENTRAL MOUNTAINS...LAUREL
HIGHLANDS AND CENTRAL MOUNTAINS LATE SUNDAY NIGHT INTO MONDAY
NIGHT. UNSETTLED CONDITIONS WILL LAST INTO MID WEEK AS A DEEP
UPPER TROUGH AND CUT OFF LOW LINGER OVER THE REGION.

&&

.NEAR TERM /UNTIL 9 PM THIS EVENING/...
COLD FRONT IS FIRING UP SOME CELLS...WHICH HAVE NOW PRODUCED SOME
LTG. TO EITHER SIDE OF THIS LINE IS SFC HEATING...BUT STABILITY
PRETTY LOW TO THE WEST OF THE LINE. WILL KEEP THE POPS AND
MENTIONS OF THUNDER TO THE EAST WHERE BEST JUICE AND HEATING IS
CURRENTLY. WIND SHEAR ALONG THE FRONT HAS SPUN ONE OF THE
CELLS...BUT HIGH WINDS WILL BE TOUGH TO TAP INTO. EHI/S VERY LOW
AND HELICITY NOT HIGH...BUT LINEAR FEATURE OF THE FRONT AND
LOCALLY ENHANCED SHEAR WILL BEAR WATCHING. THE RAIN BAND TO THE
WEST IS WAY BEHIND THE FRONT NOW...AND WILL LIKELY CONTINUE TO
SHRIVEL UP THROUGH THE EVENING AS IT TRIES TO GET TO THE EAST.
SPC STILL MENTIONS THE AREA IN THE DAY 1 OUTLOOK...WITH WIND GUSTS
THE HIGHER THREATS.

&&

.SHORT TERM /9 PM THIS EVENING THROUGH 6 PM SUNDAY/...
MODELS AGREE VERY NICELY ON THE EVOLUTION OF THE FEATURES OF NOTE
THROUGH THE PERIOD. FRONT SLIDES EAST TONIGHT...BUT NOT TOO FAR
FROM THE ERN COS. UPPER TROF DIGS TO OUR WEST AND BEGINS TO CUT
OFF LATE TONIGHT OVER THE MID OHIO VALLEY. GOOD SRLY/SERLY BACKING
FLOW ALOFT AHEAD OF THE SFC LOW WILL HELP TO KEEP PRECIP CLOSE TO
IF NOT OVER THE SERN COS TONIGHT. LOW CLOUDS BACK IN THE COLD AIR
WILL HOLD ON OVER MUCH OF THE AREA...AND WILL KEEP TEMPS ABOVE
FREEZING TONIGHT. HOWEVER...THERE COULD BE DRIZZLE OR EVEN A
FLURRY OR TWO IN THE ELEVATIONS OF THE NRN MTS LATE TONIGHT AND
EARLY SUN AM. THE SFC LOW DEEPENS AS IT MOVES INTO THE DELMARVA BY
THE END OF THE DAY ON SUNDAY...WITH PRECIP - RAIN THAT IS - BEING
THROWN BACK STEADILY NW OVER THE FCST AREA THROUGH THE DAY. THIS
WILL MAKE FOR HIGH POPS OVER THE SE IN THE AM...AND OVER MOST OF
THE AREA BY SUNSET. QPF DOES NEAR AN INCH BY THE END OF THE
PERIOD...BUT IT IS STRATIFORM IN NATURE AND FFG HIGH WITH THE
VERY DRY LAST FEW WEEKS WE HAVE HAD.

&&

.LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/...
ISSUED WINTER STORM WATCH FOR LATER SUNDAY NIGHT INTO TUE
MORNING. COMBINATION OF STRONG SYSTEM GOING NEGATIVE TILT...
ADVECTION OF COLD AIR JUST TO THE NORTH...AND STRONG UPWARD
MOTION...WILL RESULT IN THE POTENTIAL OF HEAVY WET SNOW
WEST OF A DEEP LOW TRACKING NW INTO EASTERN PA ON MONDAY.

DID NOT GO TOO FAR EAST WITH THE WATCH...AS THE AIRMASS WILL
BE SLIGHTLY WARMER...LESS QPF...AND EAST OF WHERE OTHERS AND
HPC HAS INDICATED CONCERN.

HELD WATCH UNTIL 16Z TUE...AS IT MAY TAKE SOME TIME FOR
THINGS TO WARM UP.

CHC OF SHOWERS ON WED...AS ANOTHER FRONT DROPS SE.

MOST OF THE REST OF THE WEEK LOOKS DRY AND COOL...AS
HIGH PRESSURE TO THE NW BUILDS SE.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
A COLD FRONT WILL CONTINUE TO PUSH EASTWARD ACROSS PA THIS
AFTN/EVE...ACCOMPANIED BY SCATTERED SHOWERS. ISOLD TSTMS ARE
POSSIBLE JUST AHEAD OF THE FRONT...OVER EASTERN TERMINALS. LOW
CIGS WILL PERSIST AT BFD AND JST..WITH UPSLOPE FLOW BEHIND THE
FRONT.

ANY LINGERING PRECIP PULLS EAST OF AREA TONIGHT...ALTHOUGH LOW
CLOUDS AND REDUCED CIGS /WIDESPREAD MVFR-IFR/ WILL CONTINUE TO
IMPACT THE REGION.

LOW PRESSURE IS EXPECTED TO DEVELOP ALONG THE MID-ATLANTIC COAST
SUNDAY. THE PRECIP SHIELD WITH THIS SYSTEM WILL PUSH NORTHWARD
INTO THE AREA LATE SUNDAY...BRINGING AN EXTENDED PERIOD OF POOR
FLYING CONDS THAT WILL LAST INTO MONDAY. IT SHOULD BE COLD ENOUGH
FOR WET SNOW TO AFFECT HIGHER ELEVATIONS TAF SITES /BFD AND JST/
SUNDAY NIGHT INTO MONDAY.

CONDS WILL SLOWLY BEGIN TO IMPROVE TUES...AS LOW PRESSURE PULLS
NORTHWARD AND AWAY FROM THE REGION.

OUTLOOK...
SUN...VFR/MVFR NW. RAIN AND MVFR/IFR DEVELOPING SE.
SUN NGT-MON...MVFR/IFR LIKELY IN RAIN/SNOW.
TUE...MVFR PERSISTING...ESPECIALLY NW.
WED-THU...GENERALLY VFR.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM SUNDAY EVENING THROUGH TUESDAY MORNING
FOR PAZ004>006-010-011-017-024-033-037.

&&

SYNOPSIS...DANGELO
NEAR TERM...DANGELO
SHORT TERM...DANGELO
LONG TERM...MARTIN
AVIATION...EVANEGO
Hazardous weather outlook, Apr 21, 4:42 PM EDT, 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
442 PM EDT SAT APR 21 2012

PAZ004>006-010-011-017-024-033-037-222045-
WARREN-MCKEAN-POTTER-ELK-CAMERON-CLEARFIELD-CAMBRIA-SOMERSET-TIOGA-
442 PM EDT SAT APR 21 2012

...A WINTER STORM WATCH IS IN EFFECT FROM SUNDAY EVENING THROUGH
TUESDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

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

   WINTER STORM WATCH.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS AND SNOWFALL ACCORDING TO STANDARD OPERATING
PROCEDURES.

PAZ028-036-049>053-056>059-063>066-222045-
JUNIATA-FRANKLIN-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-
DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER-
442 PM EDT SAT APR 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SURFACE LOW PRESSURE WILL FORM ALONG THE SOUTH CAROLINA COAST
SUNDAY MORNING AND MOVE UP THE EASTERN SEABOARD...WHILE A DEEP AND
SLOW MOVING UPPER LOW DRIFTS NORTHEAST FROM THE OHIO RIVER VALLEY
AND CROSSES CENTRAL PENNSYLVANIA ON MONDAY.

THIS STORM TRACK WILL LIKELY LEAD TO A COLD...SOAKING RAINFALL OF
1 TO 2 INCHES SUNDAY NIGHT THROUGH MONDAY. LOCALIZED HEAVIER
RAINFALL TOTALS OF AROUND 3 INCHES ARE POSSIBLE OVER THE 36 HOUR
PERIOD FROM SUNDAY NIGHT THROUGH TUESDAY MORNING. THIS WILL LEAD
TO SIGNIFICANT RISES ON STREAMS AND CREEKS. HOWEVER...THE EXTENDED
PERIOD OF DRY CONDITIONS AND CURRENTLY VERY LOW FLOW IN STREAMS
AND RIVERS WILL MINIMIZE THE THREAT FOR FLOODING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS...INCLUDING SNOWFALL AND RAIN AMOUNTS...ACCORDING TO
STANDARD OPERATING PROCEDURES.

PAZ012-018-019-025>027-034-035-041-042-045-046-222045-
NORTHERN CLINTON-NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-HUNTINGDON-
MIFFLIN-BEDFORD-FULTON-NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
442 PM EDT SAT APR 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SURFACE LOW PRESSURE WILL FORM ALONG THE SOUTH CAROLINA COAST
SUNDAY MORNING AND MOVE UP THE EASTERN SEABOARD...WHILE A DEEP AND
SLOW MOVING UPPER LOW DRIFTS NORTHEAST FROM THE OHIO RIVER VALLEY
AND CROSSES CENTRAL PENNSYLVANIA ON MONDAY.

THIS STORM TRACK WILL LIKELY LEAD TO A COLD...SOAKING RAINFALL OF
1 TO 2 INCHES SUNDAY NIGHT THROUGH MONDAY. SNOW WILL MIX IN WITH
THE RAIN AT TIMES...AND THE AIR MAY BECOME COLD ENOUGH FOR A
COMPLETE CHANGEOVER TO PERIODS OF HEAVY WET SNOW TO THE WEST OF A
LINE FROM WILLIAMSPORT TO SUNBURY. THERE IS THE POTENTIAL FOR A
FEW...TO SEVERAL INCHES OF SNOW ACCUMULATION BY TUESDAY MORNING
ACROSS THE CENTRAL AND NORTH CENTRAL MOUNTAINS OF PENNSYLVANIA.
THE SNOW CLINGING TO THE TREES THAT CONTAIN NEARLY FULL
FOLIAGE...AND INCREASING NORTHERLY WIND...MAY LEAD TO SOME DOWNED
TREE LIMBS AND SCATTERED POWER MONDAY NIGHT INTO TUESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS...INCLUDING HEAVY RAINFALL... ACCORDING TO STANDARD
OPERATING PROCEDURES.

LAMBERT

In the hours before

Special weather statement, Apr 21, 3:03 PM EDT, 2 hours 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
303 PM EDT SAT APR 21 2012

PAZ050-052-056>058-212000-
DAUPHIN PA-NORTHUMBERLAND PA-PERRY PA-SCHUYLKILL PA-SNYDER PA-
303 PM EDT SAT APR 21 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PERRY...NORTHERN
DAUPHIN...SOUTHEASTERN SNYDER...SOUTHWESTERN NORTHUMBERLAND AND WEST
CENTRAL SCHUYLKILL COUNTIES...

AT 258 PM EDT...A STRONG THUNDERSTORM WAS NEAR AMITY HALL...MOVING
NORTHEAST AT 15 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL AFFECT MONTGOMERY FERRY...MILLERSBURG...
ELIZABETHVILLE...BERRYSBURG AND PILLOW.

THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11/15...ROUTE
209...ROUTE 322/22.

LAT...LON 4035 7705 4048 7720 4060 7706 4061 7700
      4064 7694 4065 7695 4064 7700 4065 7700
      4083 7678 4063 7654

FORECASTER: MARTIN
Special weather statement, Apr 21, 3:09 PM EDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
309 PM EDT SAT APR 21 2012

PAZ063>065-212015-
ADAMS PA-CUMBERLAND PA-YORK PA-
309 PM EDT SAT APR 21 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN CUMBERLAND...NORTHERN
ADAMS AND NORTHWESTERN YORK COUNTIES...

AT 306 PM EDT...A STRONG THUNDERSTORM WAS NEAR BENDERSVILLE...MOVING
NORTHEAST AT 20 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL AFFECT PINE GROVE FURNACE...MOUNT HOLLY SPRING...
BOILING SPRINGS...DILLSBURG...HOGESTOWN AND SIDDONSBURG.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 228 AND 243...I-81 BETWEEN
MILE MARKERS 46 AND 64...I-83 BETWEEN MILE MARKERS 30 AND 42.

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

LAT...LON 3988 7737 4003 7749 4032 7698 4032 7694
      4029 7692 4026 7691 4025 7689 4010 7677

FORECASTER: MARTIN
Special weather statement, Apr 21, 3:32 PM EDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
332 PM EDT SAT APR 21 2012

PAZ057>059-212000-
DAUPHIN PA-LEBANON PA-SCHUYLKILL PA-
332 PM EDT SAT APR 21 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN DAUPHIN...NORTHWESTERN
LEBANON AND SOUTHWESTERN SCHUYLKILL COUNTIES...

AT 328 PM EDT...A STRONG THUNDERSTORM WAS NEAR HALIFAX...MOVING
NORTHEAST AT 25 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL AFFECT ELIZABETHVILLE...LYKENS AND WILLIAMSTOWN.

THIS WILL IMPACT I-81 BETWEEN MILE MARKERS 96 AND 98.

THIS WILL ALSO IMPACT ROUTE 209.

LAT...LON 4051 7644 4043 7688 4055 7694 4066 7673
      4065 7670 4067 7670 4070 7658

FORECASTER: EVANEGO
Special weather statement, Apr 21, 4:46 PM EDT, 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
446 PM EDT SAT APR 21 2012

PAZ053-058-059-212215-
COLUMBIA PA-LEBANON PA-SCHUYLKILL PA-
446 PM EDT SAT APR 21 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN LEBANON...
SCHUYLKILL AND SOUTHEASTERN COLUMBIA COUNTIES THROUGH 615 PM EDT...

AT 441 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
BERWICK TO TREMONT TO HARPER TAVERN...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS TO 35 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. EXPECT OCCASIONAL...DANGEROUS CLOUD TO GROUND LIGHTNING FROM
THESE STORMS. DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES
WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES. THESE STORMS WILL AFFECT SCOTCH VALLEY...RINGTOWN...AND
GIRARDVILLE...SHENANDOAH...PINE GROVE...NUREMBURG...AND
MINERSVILLE...ST. CLAIR...POTTSVILLE AND MAHANOY CITY.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...
I-78 BETWEEN MILE MARKERS 0 AND 4...I-80 BETWEEN MILE MARKERS 241 AND
247...I-81 BETWEEN MILE MARKERS 82 AND 139.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11...ROUTE
22...ROUTE 209...STATE ROAD 61...STATE ROAD 309.

LAT...LON 4064 7598 4057 7601 4049 7642 4047 7640
      4037 7663 4050 7663 4055 7654 4058 7658
      4074 7647 4078 7638 4083 7641 4084 7643
      4113 7631 4114 7623 4095 7620 4091 7605
      4091 7599 4074 7576

FORECASTER: LAMBERT
Special weather statement, Apr 21, 5:09 PM EDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
509 PM EDT SAT APR 21 2012

PAZ058-059-212145-
LEBANON PA-SCHUYLKILL PA-
509 PM EDT SAT APR 21 2012

...A STRONG THUNDERSTORM WILL AFFECT LEBANON AND SOUTH CENTRAL
SCHUYLKILL COUNTIES THROUGH 545 PM EDT...

AT 506 PM EDT...A STRONG THUNDERSTORM WAS NEAR LEBANON...MOVING
NORTHEAST AT 20 MPH.

BRIEF WIND GUSTS BETWEEN 40 AND 50 MPH AND MARBLE SIZE HAIL ARE
POSSIBLE WITH THIS STORM. EXPECT OCCASIONAL...DANGEROUS CLOUD TO
GROUND LIGHTNING FROM THIS STORM. DO NOT STAY IN THE OPEN NOR SEEK
SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A
THUNDERSTORM APPROACHES. THIS STORM WILL AFFECT
FREDERICKSBURG...MYERSTOWN AND SUMMIT STATION.

THIS WILL IMPACT I-78 BETWEEN MILE MARKERS 1 AND 8.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 22...ROUTE
322...ROUTE 422...STATE ROAD 61...STATE ROAD 501.

LAT...LON 4057 7601 4058 7605 4053 7617 4051 7625
      4051 7634 4043 7631 4050 7635 4050 7641
      4069 7602 4064 7598

FORECASTER: LAMBERT
Special weather statement, Apr 21, 5:12 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE STATE COLLEGE PA
512 PM EDT SAT APR 21 2012

PAZ059-212145-
LEBANON PA-
512 PM EDT SAT APR 21 2012

...A STRONG THUNDERSTORM WILL AFFECT LEBANON AND SOUTH CENTRAL
SCHUYLKILL COUNTIES THROUGH 545 PM EDT...

AT 506 PM EDT...A STRONG THUNDERSTORM WAS NEAR LEBANON...MOVING
NORTHEAST AT 20 MPH.

BRIEF WIND GUSTS BETWEEN 40 AND 50 MPH AND MARBLE SIZE HAIL ARE
POSSIBLE WITH THIS STORM. EXPECT OCCASIONAL...DANGEROUS CLOUD TO
GROUND LIGHTNING FROM THIS STORM. DO NOT STAY IN THE OPEN NOR SEEK
SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A
THUNDERSTORM APPROACHES. THIS STORM WILL AFFECT
FREDERICKSBURG...MYERSTOWN AND SUMMIT STATION.

THIS WILL IMPACT I-78 BETWEEN MILE MARKERS 1 AND 8.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 22...ROUTE
322...ROUTE 422...STATE ROAD 61...STATE ROAD 501.

LAT...LON 4024 7639 4024 7643 4021 7652 4024 7654
      4034 7649 4041 7654 4050 7643 4039 7626
      4037 7621 4035 7620

FORECASTER: LAMBERT

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 2:23 PM EDTSpecial Weather StatementCTPPerry37 min
Apr 21, 2:51 PM EDTSpecial Weather StatementCTPFranklin54 min
Apr 21, 3:03 PM EDTSpecial Weather StatementCTPDauphin57 min
Apr 21, 3:09 PM EDTSpecial Weather StatementCTPCumberland66 min
Apr 21, 3:32 PM EDTSpecial Weather StatementCTPDauphin28 min
Apr 21, 4:17 PM EDTWinter Storm WatchCTPBedford, Blair, Cambria, Cameron, Centre, Clearfield and 10 more24 hr
Apr 21, 4:46 PM EDTSpecial Weather StatementCTPSchuylkill89 min
Apr 21, 5:09 PM EDTSpecial Weather StatementCTPSchuylkill36 min
Apr 21, 6:57 PM EDTSpecial Weather StatementCTPLancaster78 min
Apr 21, 7:31 PM EDTSpecial Weather StatementCTPLancaster74 min

Nearby

Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012

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.