Alert archive / Pennsylvania / Special Weather Statements in 2020
Special Weather Statement, NWS State College, PA
NWS State College, PA issued this special weather statement at Jul 23, 2020, 4:00 PM EDT for Lancaster County, Pennsylvania. It was in force for 30 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
- Jul 23, 2020, 4:00 PM EDT (20:00 UTC)
- Expired
- Jul 23, 2020, 4:30 PM EDT
- In force
- 30 min
- Issued by
- NWS State College, PA
County Lancaster County, PA
The radar
The Dover AFB radar (KDOX), 152 km from the middle of the area, began a volume at 20:03 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, 8.0 hours before the alert went out and 160 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
- 116 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1241 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 23, 1:48 PM EDT, 2 hours 12 minutes earlier.
Area forecast discussion, Jul 23, 1:48 PM EDT, 2 hours 12 minutes before
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</html>Hazardous weather outlook, Jul 23, 1:52 PM EDT, 2 hours 8 minutes before
Hazardous Weather Outlook National Weather Service State College PA 152 PM EDT Thu Jul 23 2020 PAZ004>006-010>012-017>019-024>028-033>037-041-045-046-049>053- 056>059-063>066-240830- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Juniata-Somerset-Bedford-Fulton-Franklin-Tioga-Northern Lycoming- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland- Adams-York-Lancaster- 152 PM EDT Thu Jul 23 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Isolated strong to severe thunderstorms with gusty winds and heavy downpours are possible this afternoon. Localized flooding may occur in areas that can experience rapid runoff from heavy rainfall. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ042-240830- Sullivan- 152 PM EDT Thu Jul 23 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Scattered severe thunderstorms with winds to 60 mph and heavy downpours are possible this afternoon. Localized flooding may occur in areas that can experience rapid runoff from heavy rainfall. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather.
In the hours before
Local storm report, Jul 23, 11:02 AM EDT, 4 hours 58 minutes before
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</html>Special weather statement, Jul 23, 3:18 PM EDT, 42 minutes before
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</html>Special weather statement, Jul 23, 3:58 PM EDT, 2 minutes before
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</html>Special weather statement, Jul 23, 4:00 PM EDT, 0 minutes before
Special Weather Statement National Weather Service State College PA 400 PM EDT Thu Jul 23 2020 PAZ066-232030- Lancaster PA- 400 PM EDT Thu Jul 23 2020 ...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LANCASTER COUNTY UNTIL 430 PM EDT... At 400 PM EDT, Doppler radar indicated a strong thunderstorm over Leacock, moving east at 20 mph. Wind gusts 40 to 50 mph are possible. Locations impacted include... Lancaster, New Holland, Leola, Paradise, Strasburg, Leacock, Bareville, Intercourse, Georgetown, Gordonville, Bird-In-Hand, Smoketown, Dutch Wonderland and Lancaster Airport. 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. 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. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 4006 7633 4012 7629 4010 7602 3994 7609 TIME...MOT...LOC 2000Z 286DEG 16KT 4008 7626 Banghoff
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:18 PM EDT | Special Weather Statement | CTP | Berks | 27 min |
| Jul 23, 3:58 PM EDT | Special Weather Statement | CTP | Fulton | 32 min |
| Jul 23, 4:28 PM EDT | Special Weather Statement | CTP | Carbon | 32 min |
| Jul 23, 4:36 PM EDT | Areal Flood Advisory | CTP | Bedford, Fulton | 2 hr |
| Jul 23, 5:51 PM EDT | Areal Flood Advisory | CTP | Bedford | 114 min |
| Jul 23, 6:16 PM EDT | Special Weather Statement | CTP | Sullivan | 29 min |
| Jul 23, 6:45 PM EDT | Special Weather Statement | CTP | Sullivan | 45 min |
| Jul 23, 7:22 PM EDT | Areal Flood Advisory | CTP | Cambria | 3 hr |
| Jul 23, 7:30 PM EDT | Special Weather Statement | CTP | Sullivan | 45 min |
| Jul 23, 7:55 PM EDT | Areal Flood Advisory | CTP | Bedford, Blair, Cambria | 3 hr |
Nearby
Special Weather Statements in Pennsylvania, 2020Every special weather statement in 2020
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.