Alert archive / Pennsylvania / River Flood Warnings in 2021

River Flood Warning 21, NWS State College, PA

September 23, 2021Lebanon County, Schuylkill County, Pennsylvania

NWS State College, PA issued this river flood warning at Sep 23, 2021, 5:36 PM EDT for Lebanon County, Schuylkill County, Pennsylvania. It took effect at Sep 23, 2021, 7:01 PM EDT. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued: Sep 23, 2021, 5:36 PM EDT (21:36 UTC)
In effect from: Sep 23, 2021, 7:01 PM EDT
Expired: Sep 24, 2021, 5:30 AM EDT
In force: 10 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: Minor

Counties Lebanon County, PA, Schuylkill County, PA

The radar

The State College radar (KCCX), 136 km from the middle of the area, began a volume at 21:38 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 river

Written for the forecast point Swatara Creek at Harper Tavern (HTVP1). The gauge peaked at 10.23 ft at Sep 24, 2021, 1:00 AM EDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 12 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01573000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

686 
WGUS41 KCTP 232136
FLWCTP

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service State College PA
536 PM EDT Thu Sep 23 2021

...The National Weather Service in State College PA has issued a 
Flood Warning for the following rivers in Pennsylvania...

  Swatara Creek At Harper Tavern affecting Schuylkill and Lebanon 
  Counties.

For the Swatara Creek...including Middletown, Harper Tavern, 
Hershey...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Additional information is available at www.weather.gov.

The next statement will be issued later tonight.

&&


PAC075-107-240945-
/O.NEW.KCTP.FL.W.0021.210923T2301Z-210924T1425Z/
/HTVP1.1.ER.210923T2301Z.210924T0600Z.210924T0824Z.NO/
536 PM EDT Thu Sep 23 2021

The National Weather Service in State College has issued a

* Flood Warning for
  the Swatara Creek At Harper Tavern.
* Until late tomorrow morning.
* At 5:16 PM EDT Thursday the stage was 8.8 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 9.5 feet just after midnight tonight. It 
  will then fall below flood stage late tonight.
* Impact...At 9.0 feet, Several driveways and other minor roadways 
  are affected. Water begins to enter some basements.
* Impact...At 10.0 feet, High water isolates several houses.


&&

LAT...LON 4059 7648 4052 7639 4037 7647 4034 7659
      4038 7663 4043 7658

$$

Banghoff

3 follow-up statements

053 
WGUS81 KCTP 240242
FLSCTP

Flood Statement
National Weather Service State College PA
1042 PM EDT Thu Sep 23 2021

...The Flood Warning is extended for the following rivers in 
Pennsylvania...

  Penns Creek Near Penns Creek affecting Union and Snyder Counties.

  Swatara Creek At Harper Tavern affecting Schuylkill and Lebanon 
  Counties.

...The Flood Warning is cancelled for the following rivers in 
Pennsylvania...

  Sherman Creek At Shermans Dale affecting Perry County.

For the Penns Creek...including Penns Creek...Moderate flooding is 
forecast.
For the Swatara Creek...including Middletown, Harper Tavern, 
Hershey...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Additional information is available at www.weather.gov.

The next statement will be issued Friday morning.

&&


PAC099-240345-
/O.CAN.KCTP.FL.W.0018.000000T0000Z-210924T0242Z/
/SMDP1.1.ER.210923T1232Z.210923T1945Z.210924T0121Z.NO/
1042 PM EDT Thu Sep 23 2021

...The Flood Warning for the Sherman Creek At Shermans Dale has been 
cancelled...

The Flood Warning is cancelled for
  the Sherman Creek At Shermans Dale.
* At 10:15 PM EDT Thursday the stage was 8.5 feet.
* Flood stage is 9.0 feet.
* Forecast...The river is expected to fall to 2.3 feet Sunday 
  evening.


&&

LAT...LON 4036 7726 4035 7719 4037 7713 4036 7709
      4031 7716 4031 7725

$$

PAC075-107-241445-
/O.EXT.KCTP.FL.W.0021.000000T0000Z-210924T1500Z/
/HTVP1.1.ER.210923T2143Z.210924T0600Z.210924T0900Z.NO/
1042 PM EDT Thu Sep 23 2021

...The Flood Warning is now in effect until late tomorrow morning...

The Flood Warning continues for
  the Swatara Creek At Harper Tavern.
* Until late tomorrow morning.
* At 10:31 PM EDT Thursday the stage was 10.1 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 10:31 PM EDT Thursday was 10.1 feet.
* Forecast...The river is expected to rise to a crest of 10.4 feet 
  just after midnight tonight. It will then fall below flood stage 
  late tonight.
* Impact...At 9.0 feet, Several driveways and other minor roadways 
  are affected. Water begins to enter some basements.
* Impact...At 10.0 feet, High water isolates several houses.
* Impact...At 12.0 feet, A number of secondary roads are closed, 
  resulting in some evacuations. A few homes are flooded.
* Flood History...This crest compares to a previous crest of 11.9 
  feet on 04/03/2005.


&&

LAT...LON 4059 7648 4052 7639 4037 7647 4034 7659
      4038 7663 4043 7658

$$

PAC109-119-241445-
/O.EXT.KCTP.FL.W.0020.000000T0000Z-210925T0800Z/
/PNCP1.2.ER.210923T1411Z.210924T0600Z.210925T0200Z.NO/
1042 PM EDT Thu Sep 23 2021

...The Flood Warning is now in effect until early Saturday morning...

The Flood Warning continues for
  the Penns Creek Near Penns Creek.
* Until early Saturday morning.
* At 10:00 PM EDT Thursday the stage was 10.8 feet.
* Flood stage is 8.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 10:00 PM EDT Thursday was 10.8 feet.
* Forecast...The river is expected to rise to a crest of 11.0 feet 
  just after midnight tonight. It will then fall below flood stage 
  late tomorrow evening.
* Impact...At 8.0 feet, The left, or north bank overflows downstream 
  of the Route 104 bridge. A campground is affected. A number of 
  secondary roads in the Penns Creek drainage are affected by high 
  water.
* Impact...At 10.0 feet, High water overflows both banks. Several 
  homes and cottages on the left or north bank are affected. Many 
  secondary roads along the creek are closed due to high water 
  levels.
* Impact...At 12.0 feet, Significant overflow of both banks occurs. 
  Numerous homes are affected by high water levels.
* Flood History...This crest compares to a previous crest of 9.7 
  feet on 12/01/2010.


&&

LAT...LON 4089 7712 4089 7705 4089 7698 4086 7698
      4085 7706 4086 7711

$$

Banghoff

570 
WGUS81 KCTP 240857
FLSCTP

Flood Statement
National Weather Service State College PA
457 AM EDT Fri Sep 24 2021

...The Flood Warning continues for the following rivers in 
Pennsylvania...

  Penns Creek Near Penns Creek affecting Union and Snyder Counties.

  Conodoguinet Creek Near Hogestown affecting Cumberland County.

  Swatara Creek At Harper Tavern affecting Schuylkill and Lebanon 
  Counties.

For the Penns Creek...including Penns Creek...Minor flooding is 
forecast.
For the Conodoguinet Creek...including Hogestown...Minor flooding is 
forecast.
For the Swatara Creek...including Middletown, Harper Tavern, 
Hershey...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Additional information is available at www.weather.gov.

The next statement will be issued this morning at 1100 AM EDT.

&&


PAC041-242100-
/O.CON.KCTP.FL.W.0022.000000T0000Z-210924T2100Z/
/HGSP1.1.ER.210924T1000Z.210924T1200Z.210924T1500Z.NO/
457 AM EDT Fri Sep 24 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Conodoguinet Creek Near Hogestown.
* Until late this afternoon.
* At 4:30 AM EDT Friday the stage was 7.9 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  morning to a crest of 8.1 feet. It will then fall below flood 
  stage late this morning.
* Impact...At 8.0 feet, Low lying areas in the vicinity of Erbs 
  Bridge Road, Prowell Road, Stone Spring Lane, and Oyster Mill Road 
  are flooded.
* Impact...At 10.0 feet, Some residences in the vicinity of Erb's 
  Bridge Road, Prowell Road, Stone Spring Lane, and Oyster Mill Road 
  are flooded.


&&

LAT...LON 4023 7747 4028 7713 4031 7692 4023 7689
      4020 7715 4015 7748

$$

PAC075-107-241500-
/O.CON.KCTP.FL.W.0021.000000T0000Z-210924T1500Z/
/HTVP1.1.ER.210923T2143Z.210924T0500Z.210924T0958Z.NO/
457 AM EDT Fri Sep 24 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Swatara Creek At Harper Tavern.
* Until late this morning.
* At 4:31 AM EDT Friday the stage was 9.3 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 4:31 AM EDT Friday was 10.2 feet.
* Forecast...The river is expected to fall below flood stage this 
  morning and continue falling to 2.8 feet early Monday morning.
* Impact...At 9.0 feet, Several driveways and other minor roadways 
  are affected. Water begins to enter some basements.
* Impact...At 10.0 feet, High water isolates several houses.
* Flood History...This crest compares to a previous crest of 11.0 
  feet on 03/29/2005.


&&

LAT...LON 4059 7648 4052 7639 4037 7647 4034 7659
      4038 7663 4043 7658

$$

PAC109-119-242100-
/O.CON.KCTP.FL.W.0020.000000T0000Z-210925T0800Z/
/PNCP1.2.ER.210923T1411Z.210924T0245Z.210925T0000Z.NO/
457 AM EDT Fri Sep 24 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Penns Creek Near Penns Creek.
* Until late tonight.
* At 4:00 AM EDT Friday the stage was 9.8 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 4:00 AM EDT Friday was 10.9 feet.
* Forecast...The river is expected to fall below flood stage this 
  evening and continue falling to 4.7 feet early Monday morning.
* Impact...At 8.0 feet, The left, or north bank overflows downstream 
  of the Route 104 bridge. A campground is affected. A number of 
  secondary roads in the Penns Creek drainage are affected by high 
  water.
* Impact...At 10.0 feet, High water overflows both banks. Several 
  homes and cottages on the left or north bank are affected. Many 
  secondary roads along the creek are closed due to high water 
  levels.
* Flood History...This crest compares to a previous crest of 9.7 
  feet on 12/01/2010.


&&

LAT...LON 4089 7712 4089 7705 4089 7698 4086 7698
      4085 7706 4086 7711

$$

Travis

583 
WGUS81 KCTP 240930
FLSCTP

Flood Statement
National Weather Service State College PA
530 AM EDT Fri Sep 24 2021

...The Flood Warning is cancelled for the following rivers in 
Pennsylvania...

  Swatara Creek At Harper Tavern affecting Schuylkill and Lebanon 
  Counties.

PAC075-107-241030-
/O.CAN.KCTP.FL.W.0021.000000T0000Z-210924T0930Z/
/HTVP1.1.ER.210923T2143Z.210924T0500Z.210924T0902Z.NO/
530 AM EDT Fri Sep 24 2021

...The Flood Warning for the Swatara Creek At Harper Tavern has been 
cancelled...

The Flood Warning is cancelled for
  the Swatara Creek At Harper Tavern.
* At 5:16 AM EDT Friday the stage was 8.9 feet.
* Flood stage is 9.0 feet.
* Forecast...The river is expected to fall to 2.8 feet early Monday 
  morning.


&&

LAT...LON 4059 7648 4052 7639 4037 7647 4034 7659
      4038 7663 4043 7658

$$

Travis

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 22, 8:38 PM EDT	Special Weather Statement	CTP	Elk	37 min
Sep 23, 2:15 AM EDT	Areal Flood Advisory	CTP	Franklin	2 hr
Sep 23, 3:32 AM EDT	Areal Flood Advisory	CTP	Centre, Clinton, Huntingdon, Mifflin	7 hr
Sep 23, 4:14 AM EDT	Areal Flood Advisory	CTP	Adams	3 hr
Sep 23, 7:14 AM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, York	3 hr
Sep 23, 7:36 AM EDT	Areal Flood Advisory	CTP	Columbia, Lycoming, Montour, Northumberland, Sullivan, Tioga and 1 more	3 hr
Sep 23, 7:44 AM EDT	River Flood Warning	CTP	Perry	23 hr
Sep 23, 7:44 AM EDT	River Flood Warning	CTP	Centre, Clinton	11 hr
Sep 23, 8:21 AM EDT	Areal Flood Advisory	CTP	Tioga	5 hr
Sep 23, 8:52 AM EDT	Areal Flood Advisory	CTP	Lancaster, York	2 hr
Sep 23, 10:10 AM EDT	River Flood Warning	CTP	Snyder, Union	26 hr
Sep 23, 10:22 AM EDT	Areal Flood Advisory	CTP	Lancaster	3 hr
Sep 23, 10:36 AM EDT	Areal Flood Advisory	CTP	Columbia, Lycoming, Montour, Northumberland, Sullivan, Tioga and 1 more	2 hr

Nearby

River Flood Warnings in Pennsylvania, 2021 Every river flood warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.