Alert archive / Pennsylvania / River Flood Warnings in 2022

River Flood Warning 24, NWS Philadelphia/Mount Holly

April 19, 2022Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Apr 19, 2022, 4:50 AM EDT for Chester County, Delaware County, Pennsylvania. It took effect at Apr 19, 2022, 5:30 AM EDT. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 19, 2022, 4:50 AM EDT (08:50 UTC)
In effect from
Apr 19, 2022, 5:30 AM EDT
Expired
Apr 19, 2022, 11:59 AM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

Counties Chester County, PA, Delaware County, PA

The radar

The Philadelphia radar (KDIX), 102 km from the middle of the area, began a volume at 08:50 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 Brandywine Creek at Chadds Ford (CDFP1). The gauge peaked at 8.48 ft at Apr 19, 2022, 9:00 AM EDT.

actionminormoderate51004/1904/20
Action stage
8 ft
Minor stage
9 ft
Moderate stage
11 ft
Major stage
13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01481000, 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.

150 
WGUS41 KPHI 190850
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
450 AM EDT Tue Apr 19 2022

...The National Weather Service in Mount Holly NJ has issued a Flood 
Warning for the following rivers in Pennsylvania...

  Brandywine Creek At Chadds Ford affecting Delaware and Chester 
  Counties.

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/phi.

The next statement will be issued this afternoon at 230 PM EDT.

&&


PAC029-045-191830-
/O.NEW.KPHI.FL.W.0024.220419T0930Z-220419T1830Z/
/CDFP1.1.ER.220419T1146Z.220419T1200Z.220419T1232Z.NO/
450 AM EDT Tue Apr 19 2022

...FLOOD WARNING IN EFFECT UNTIL THIS AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...Brandywine Creek At Chadds Ford.

* WHEN...Until this afternoon.

* IMPACTS...At 8.0 feet, Open adjacent land next to the creek floods.
  At 10.0 feet, The intersections of Creek Road and Route 926 near 
  Pocopson floods upstream of Chadds Ford.

* ADDITIONAL DETAILS...
  - At 4:30 AM EDT Tuesday the stage was 7.6 feet.
  - Forecast...The river is expected to rise above flood stage
    this morning to a crest of 9.1 feet this morning. It will
    then fall below flood stage this morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.2 feet on 04/02/1998.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 am)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Brandywine Creek
Chadds Ford     9.0   7.6  Tue 4 am   4.4  3.3        9.1 8am 4/19


&&

LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567


$$

Staarmann
1 follow-up statement
104 
WGUS81 KPHI 191559
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1159 AM EDT Tue Apr 19 2022

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

  Brandywine Creek At Chadds Ford affecting Delaware and Chester 
  Counties.

PAC029-045-191700-
/O.CAN.KPHI.FL.W.0024.000000T0000Z-220419T1559Z/
/CDFP1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1159 AM EDT Tue Apr 19 2022

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Brandywine Creek At Chadds Ford.

* ADDITIONAL DETAILS...
  - At 11:30 AM EDT Tuesday the stage was 7.9 feet.
  - Forecast...The river will continue falling through the week.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 pm)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Brandywine Creek
Chadds Ford     9.0   7.9  Tue 11 a   3.9  3.3  Crested and falling


&&

LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567


$$

Kruzdlo

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 1:00 AM EDTRiver Flood WarningPHIChester6 hr
Apr 19, 1:20 AM EDTAreal Flood WarningPHIChester, Delaware3 hr
Apr 19, 1:23 AM EDTAreal Flood WarningPHIMontgomery5 hr
Apr 19, 1:38 AM EDTRiver Flood WarningPHIDelaware3 hr
Apr 19, 1:43 AM EDTAreal Flood WarningPHIMontgomery, Philadelphia10 hr
Apr 19, 2:16 AM EDTAreal Flood WarningPHIBucks8 hr
Apr 19, 4:46 AM EDTRiver Flood WarningPHIBucks7 hr
Apr 19, 6:23 PM EDTSpecial Weather StatementPHIBucks, Northampton22 min

Nearby

River Flood Warnings in Pennsylvania, 2022Every river flood warning in 2022

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.