Alert archive / Pennsylvania / River Flood Warnings in 2018

River Flood Warning 64, NWS Philadelphia/Mount Holly

November 25, 2018Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Nov 25, 2018, 12:16 AM EST for Chester County, Delaware County, Pennsylvania. It took effect at Nov 25, 2018, 3:00 AM EST. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued
Nov 25, 2018, 12:16 AM EST (05:16 UTC)
In effect from
Nov 25, 2018, 3:00 AM EST
Expired
Nov 25, 2018, 2:55 PM EST
In force
12 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 05:15 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).

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.

536 
WGUS41 KPHI 250516
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1216 AM EST Sun Nov 25 2018

...The National Weather Service in Mount Holly NJ has issued a
Flood Warning for the Brandywine Creek at Chadds Ford...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think it is.

&&

PAC029-045-251116-
/O.NEW.KPHI.FL.W.0064.181125T0800Z-181125T2005Z/
/CDFP1.1.ER.181125T0800Z.181125T1200Z.181125T1405Z.NO/
1216 AM EST Sun Nov 25 2018

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Brandywine Creek at Chadds Ford.
* until this afternoon or until the warning is cancelled.
* At 11:30 PM Saturday the creek level was 7.62 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...The creek is expected to rise above flood stage
  overnight, reaching 9.9 feet around daybreak. The creek should
  fall back below flood stage late on Sunday morning.
* Impact...At 10.0 feet...The intersections of Creek Road and
  Route 926 near Pocopson floods.
* Flood history...This crest compares to a previous crest of
  10.0 feet on February 23, 2003.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford            9.0    7.62  Sat 1130 PM   9.9  Sun 7 AM 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      
$$

Iovino
3 follow-up statements
342 
WGUS81 KPHI 250758
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
258 AM EST Sun Nov 25 2018

...The Flood Warning continues for the Brandywine Creek at
Chadds Ford...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think it is.

&&

PAC029-045-251757-
/O.EXT.KPHI.FL.W.0064.181125T0800Z-181125T1900Z/
/CDFP1.1.ER.181125T0800Z.181125T1200Z.181125T1300Z.NO/
258 AM EST Sun Nov 25 2018

The Flood Warning continues for
  The Brandywine Creek at Chadds Ford.
* until this afternoon or until the warning is cancelled.
* At 2:30 AM the creek level was 8.7 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...The creek is expected to rise above flood stage 
  overnight and continue rising to near 9.2 feet around daybreak.
  The creek should fall back below flood stage late this morning.
* Impact...At 10.0 feet, the intersection of Creek Road and Route
  926 near Pocopson floods.
* Flood history...This crest compares to a previous crest of 9.2
  feet on September 28, 2018.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford            9.0   8.70  Sun 230 AM    9.2  Sun 7 AM 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      
$$

Iovino
655 
WGUS81 KPHI 251549
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1049 AM EST Sun Nov 25 2018

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

  Brandywine Creek At Chadds Ford affecting Chester and
  Delaware Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think.

&&

PAC029-045-260148-
/O.EXT.KPHI.FL.W.0064.000000T0000Z-181126T0347Z/
/CDFP1.1.ER.181125T0923Z.181125T1800Z.181125T2147Z.NO/
1049 AM EST Sun Nov 25 2018

The Flood Warning continues for
  The Brandywine Creek at Chadds Ford.
* At 10:30 AM Sunday the stage was 9.9 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring.
* Forecast...The river is nearing its crest. The river will fall
  below flood stage late this afternoon.
* Impact...At 10.0 feet...The intersections of Creek Road and 
  Route 926 near Pocopson floods upstream of Chadds Ford.
* Flood history...This crest compares to a previous crest of 10.1 
  feet on Sep 7 2011.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Brandywine Creek
  Chadds Ford            9.0    9.93  Sun 10 AM    Nearing crest 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      

$$

Kruzdlo
445 
WGUS81 KPHI 251955
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
255 PM EST Sun Nov 25 2018

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

  Brandywine Creek At Chadds Ford affecting Chester and Delaware
  Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think.

&&

PAC029-045-252025-
/O.CAN.KPHI.FL.W.0064.000000T0000Z-181126T0347Z/
/CDFP1.1.ER.181125T0923Z.181125T1530Z.181125T1843Z.NO/
255 PM EST Sun Nov 25 2018

The Flood Warning is cancelled for
  The Brandywine Creek at Chadds Ford.
* At 2:30 PM Sunday the stage was 8.5 feet.
* Flood stage is 9.0 feet.
* Fell below flood stage at 1:43 PM Sunday.
* Forecast...The river will continue to fall to 4.8 feet by tomorrow
  morning.
* Impact...At 8.0 feet...Open adjacent land next to the creek floods.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Brandywine Creek
  Chadds Ford            9.0    8.48  Sun 2 PM     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
Nov 24, 9:57 PM ESTRiver Flood WarningPHIChester8 hr
Nov 24, 10:15 PM ESTAreal Flood WarningPHIChester, Delaware6 hr
Nov 24, 10:34 PM ESTRiver Flood WarningPHIDelaware5 hr
Nov 24, 11:33 PM ESTAreal Flood WarningPHIMontgomery, Philadelphia12 hr
Nov 24, 11:36 PM ESTAreal Flood WarningPHIChester6 hr
Nov 25, 12:05 AM ESTAreal Flood WarningPHIBucks12 hr
Nov 25, 12:13 AM ESTRiver Flood WarningPHIMontgomery10 hr
Nov 25, 1:47 AM ESTRiver Flood WarningPHIBucks12 hr
Nov 25, 2:54 AM ESTRiver Flood WarningPHIChester, Montgomery, Philadelphia21 hr
Nov 25, 2:54 AM ESTRiver Flood WarningPHIMontgomery, Philadelphia17 hr
Nov 25, 3:25 PM ESTCoastal Flood AdvisoryPHIBucks, Delaware, Philadelphia34 hr
Nov 25, 3:35 PM ESTFlood WatchPHIBucks, Chester, Delaware, Montgomery, Philadelphia27 hr

Nearby

River Flood Warnings in Pennsylvania, 2018Every river flood warning in 2018

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.