Alert archive / Pennsylvania / Special Weather Statements in 2017
Special Weather Statement, NWS State College, PA
NWS State College, PA issued this special weather statement at Aug 18, 2017, 4:11 PM EDT for Lancaster County, Pennsylvania. It was in force for 34 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
- Aug 18, 2017, 4:11 PM EDT (20:11 UTC)
- Expired
- Aug 18, 2017, 4:45 PM EDT
- In force
- 34 min
- Issued by
- NWS State College, PA
County Lancaster County, PA
The radar
The Philadelphia radar (KDIX), 144 km from the middle of the area, began a volume at 20:11 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, 8.2 hours before the alert went out and 164 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.
- Mixed-layer CAPE
- 746 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 651 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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</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 Aug 18, 4:00 PM EDT, 11 minutes earlier.
Area forecast discussion, Aug 18, 4:00 PM EDT, 11 minutes before
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<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>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>Hazardous weather outlook, Aug 18, 3:56 PM EDT, 15 minutes before
Hazardous Weather Outlook National Weather Service State College PA 356 PM EDT Fri Aug 18 2017 PAZ012-018-019-025>028-034>037-041-042-045-046-049>053-056-063- 192000- Northern Clinton-Northern Centre-Southern Centre-Blair-Huntingdon- Mifflin-Juniata-Bedford-Fulton-Franklin-Tioga-Northern Lycoming- Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Cumberland- 356 PM EDT Fri Aug 18 2017 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...Saturday through Thursday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ057>059-064>066-192000- Dauphin-Schuylkill-Lebanon-Adams-York-Lancaster- 356 PM EDT Fri Aug 18 2017 ...SEVERE THUNDERSTORM WATCH 455 IN EFFECT UNTIL 9 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...Saturday through Thursday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ004>006-010-011-017-024-033-192000- Warren-McKean-Potter-Elk-Cameron-Clearfield-Cambria-Somerset- 356 PM EDT Fri Aug 18 2017 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...Saturday through Thursday. Strong to severe thunderstorms with gusty winds and hail are possible Saturday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 18, 2:02 PM EDT, 2 hours 9 minutes before
Special Weather Statement
National Weather Service State College PA
202 PM EDT FRI AUG 18 2017
PAZ051>053-058-181845-
Columbia PA-Northumberland PA-Montour PA-Schuylkill PA-
202 PM EDT FRI AUG 18 2017
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF SCHUYLKILL...
NORTHUMBERLAND...MONTOUR...AND COLUMBIA COUNTIES UNTIL 245 PM EDT...
At 201 PM EDT, Doppler radar indicated a strong thunderstorm over
Elysburg, moving east at 25 mph.
Winds in excess of 40 mph are possible.
Locations impacted include...
Tamaqua, St. Clair, Shamokin, Kulpmont, Mahanoy City, Shenandoah,
Ashland, Frackville, Mount Carmel, Pottsville, Sheppton,
Brandonville, Englewood, Coaldale, Marshallton, Elysburg, Numidia,
Slabtown, Altamont and Wilburton Number One.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4072 7664 4091 7667 4099 7622 4095 7621
4090 7604 4091 7600 4084 7591 4069 7589
TIME...MOT...LOC 1801Z 261DEG 29KT 4083 7656
GrummSpecial weather statement, Aug 18, 2:10 PM EDT, 2 hours 1 minute before
Special Weather Statement
National Weather Service State College PA
210 PM EDT FRI AUG 18 2017
PAZ027-028-036-056-063-181845-
Perry PA-Franklin PA-Cumberland PA-Juniata PA-Mifflin PA-
210 PM EDT FRI AUG 18 2017
...STRONG THUNDERSTORMS WILL AFFECT PARTS OF FRANKLIN...MIFFLIN...
JUNIATA...CUMBERLAND...AND PERRY COUNTIES UNTIL 245 PM EDT...
At 209 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Blacklog to near East Waterford to near
Doylesburg. Movement was east at 30 mph.
Wind gusts up to 50 mph are possible.
Locations impacted include...
Carlisle, Shippensburg, Plainfield, Loysville, Ickesburg, East
Waterford, New Bloomfield, Colonel Denning State Park, Honey Grove,
Newville, Bloserville, Roxbury, Walnut Bottom, Big Spring State Park,
Doylesburg, Spruce Hill, Schlusser, Carlisle Springs, Shermansdale
and Blain.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4052 7723 4026 7707 4001 7734 4012 7782
4032 7761 4051 7773
TIME...MOT...LOC 1809Z 277DEG 26KT 4045 7761 4031 7753 4018 7768
GrummSpecial weather statement, Aug 18, 2:21 PM EDT, 1 hour 50 minutes before
Special Weather Statement
National Weather Service State College PA
221 PM EDT FRI AUG 18 2017
PAZ057>059-181900-
Lebanon PA-Dauphin PA-Schuylkill PA-
221 PM EDT FRI AUG 18 2017
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF SCHUYLKILL...DAUPHIN...
AND LEBANON COUNTIES UNTIL 300 PM EDT...
At 221 PM EDT, Doppler radar indicated a strong thunderstorm near
Penn National Race Course, moving northeast at 40 mph.
Winds in excess of 40 mph are possible.
Locations impacted include...
Myerstown, Cornwall, Schuylkill Haven, Minersville, Palmyra,
Annville, Hershey, Lebanon, Pottsville, St. Clair, Harper Tavern,
Skyline View, Timber Hills, Seltzer, Richland, Quentin, Cleona,
Fredericksburg, Schaefferstown and Friedensburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Minor flooding may develop. Do not drive into water covering the
roadway.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4052 7626 4052 7634 4049 7644 4037 7625
4036 7620 4032 7615 4021 7663 4038 7676
4074 7620 4056 7610
TIME...MOT...LOC 1821Z 235DEG 35KT 4036 7662
GrummSpecial weather statement, Aug 18, 3:27 PM EDT, 44 minutes before
Special Weather Statement
National Weather Service State College PA
327 PM EDT FRI AUG 18 2017
PAZ059-066-182000-
Lancaster PA-Lebanon PA-
327 PM EDT FRI AUG 18 2017
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LANCASTER AND LEBANON
COUNTIES UNTIL 400 PM EDT...
At 326 PM EDT, Doppler radar indicated a strong thunderstorm near
Kleinfeltersville, moving southeast at 45 mph.
Winds in excess of 40 mph are possible.
Locations impacted include...
Ephrata, Terre Hill, Adamstown, Churchtown, Reamstown,
Kleinfeltersville, Denver, Newmanstown, Richland, Brickerville,
Bowmansville, Fivepointville, Reinholds, Goodville, Schoeneck and
Blue Ball.
LAT...LON 4010 7594 4007 7594 4024 7631 4037 7624
4036 7623 4036 7620 4031 7614 4014 7587
TIME...MOT...LOC 1926Z 294DEG 39KT 4029 7619
GrummSpecial weather statement, Aug 18, 3:32 PM EDT, 39 minutes before
Special Weather Statement National Weather Service State College PA 332 PM EDT FRI AUG 18 2017 PAZ065-066-182015- Lancaster PA-York PA- 332 PM EDT FRI AUG 18 2017 ...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LANCASTER AND YORK COUNTIES UNTIL 415 PM EDT... At 332 PM EDT, Doppler radar indicated a strong thunderstorm over Spring Grove, moving east at 30 mph. Dime size hail and winds in excess of 40 mph are possible. Locations impacted include... Dallastown, York, Millersville, Red Lion, Spry, Lancaster, Weigelstown, Brogue, West York, Windsor, York Airport, Spring Grove, Stonybrook-Wilshire, Cross Roads, Holtwood, Sunnyburn, Glen Rock, East York, Grantley and Jacobus. LAT...LON 3977 7691 3995 7693 4003 7631 3976 7628 TIME...MOT...LOC 1932Z 266DEG 25KT 3987 7683 Grumm
Special weather statement, Aug 18, 4:11 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service State College PA
411 PM EDT FRI AUG 18 2017
PAZ065-066-182045-
Lancaster PA-York PA-
411 PM EDT FRI AUG 18 2017
...STRONG THUNDERSTORMS WILL AFFECT PARTS OF LANCASTER AND YORK
COUNTIES UNTIL 445 PM EDT...
At 410 PM EDT, strong thunderstorms were reported along a line
extending from Sinking Spring to near Stewartstown. Movement was east
at 25 mph.
Torrential downpours and frequent lightning is expected. Wind gusts
up to 50 mph are possible.
Locations impacted include...
Akron, Millersville, New Holland, Willow Street, Ephrata, East
Petersburg, Lancaster, Lititz, Red Lion, Quarryville, Leacock,
Smithville, Strasburg, Churchtown, Cross Roads, Holtwood, Rothsville,
Terre Hill, Adamstown and Stewartstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4031 7617 4031 7614 4014 7587 4010 7594
4004 7594 3997 7599 3993 7598 3993 7600
3991 7599 3972 7617 3972 7678
TIME...MOT...LOC 2010Z 275DEG 21KT 4034 7602 3969 7661
KFThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 1:21 AM EDT | Special Weather Statement | CTP | Lycoming | 54 min |
| Aug 18, 12:33 PM EDT | Special Weather Statement | CTP | Huntingdon, Mifflin | 27 min |
| Aug 18, 1:42 PM EDT | Special Weather Statement | CTP | Juniata | 33 min |
| Aug 18, 2:02 PM EDT | Special Weather Statement | CTP | Schuylkill | 43 min |
| Aug 18, 2:10 PM EDT | Special Weather Statement | CTP | Cumberland, Perry | 35 min |
| Aug 18, 2:21 PM EDT | Special Weather Statement | CTP | Lebanon, Schuylkill | 39 min |
| Aug 18, 2:32 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 43 min |
| Aug 18, 2:36 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Juniata, Perry, York | 54 min |
| Aug 18, 3:27 PM EDT | Special Weather Statement | CTP | Lancaster | 33 min |
| Aug 18, 3:32 PM EDT | Special Weather Statement | CTP | York | 43 min |
| Aug 18, 4:38 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 52 min |
Nearby
Special Weather Statements in Pennsylvania, 2017Every special weather statement in 2017
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.