Flash Flood Warning 3, NWS State College, PA

Issued

Jul 12, 2021, 3:56 PM EDT (19:56 UTC)

Expired

Jul 12, 2021, 6:00 PM EDT

In force

2 hr

Issued by

NWS State College, PA

Area

Storm-based polygon

Flood severity

None

County Lancaster County, PA

The Dover AFB radar (KDOX), 125 km from the middle of the area, began a volume at 19:57 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.

316 
WGUS51 KCTP 121956
FFWCTP
PAC071-122200-
/O.NEW.KCTP.FF.W.0003.210712T1956Z-210712T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service State College PA
356 PM EDT Mon Jul 12 2021

The National Weather Service in State College has issued a

* Flash Flood Warning for...
  Southeastern Lancaster County in south central Pennsylvania...

* Until 600 PM EDT.

* At 356 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly, from rainfall rates exceeding 3 inches 
  per hour just north of Wakefield.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Quarryville, Wakefield, Kirkwood, Little Britain and Buck.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3980 7605 3978 7607 3974 7616 3976 7622
      3979 7629 3984 7630 3989 7625 3990 7615
      3992 7606 3990 7602 3989 7601 3985 7601
      3985 7602 3984 7602 3983 7603 3983 7604
      3981 7603 3981 7604 3980 7604

FLASH FLOOD...RADAR INDICATED

$$

Lambert

222 
WGUS71 KCTP 122125
FFSCTP

Flash Flood Statement
National Weather Service State College PA
525 PM EDT Mon Jul 12 2021

PAC071-122200-
/O.CON.KCTP.FF.W.0003.000000T0000Z-210712T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lancaster PA-
525 PM EDT Mon Jul 12 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING 
FOR SOUTHEASTERN LANCASTER COUNTY...

At 525 PM EDT, Doppler radar indicated heavy rain has diminished 
over the the warned area. Over 4 inches of rain have fallen to the 
southwest of Quarryville. Expect excessive runoff and ponding of 
water to continue over this area through 600 PM.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Quarryville, Wakefield, Kirkwood, Little Britain and Buck.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3980 7605 3978 7607 3974 7616 3976 7622
      3979 7629 3984 7630 3989 7625 3990 7615
      3992 7606 3990 7602 3989 7601 3985 7601
      3985 7602 3984 7602 3983 7603 3983 7604
      3981 7603 3981 7604 3980 7604

FLASH FLOOD...RADAR INDICATED

$$

DeVoir

Flash Flood Warnings in Pennsylvania, 2021Every flash flood warning in 2021

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.