Alert archive / Pennsylvania / River Flood Warnings in 2013

River Flood Warning 46, NWS Philadelphia/Mount Holly

October 11, 2013Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 11, 2013, 12:00 PM EDT for Chester County, Delaware County, Pennsylvania. It took effect at Oct 11, 2013, 2:00 PM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Oct 11, 2013, 12:00 PM EDT (16:00 UTC)
In effect from: Oct 11, 2013, 2:00 PM EDT
Expired: Oct 12, 2013, 3:43 AM EDT
In force: 14 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Minor

Counties Chester County, PA, Delaware County, PA

The radar

The Philadelphia radar (KDIX), 99 km from the middle of the area, began a volume at 16:00 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 9.46 ft at Oct 11, 2013, 7:00 PM EDT.

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, in the capitals the NWS used until 2016.

060 
WGUS41 KPHI 111600
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1200 PM EDT FRI OCT 11 2013

...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 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.

&&

PAC029-045-112200-
/O.NEW.KPHI.FL.W.0046.131011T1800Z-131012T0712Z/
/CDFP1.1.ER.131011T1800Z.131011T2000Z.131012T0112Z.NO/
1200 PM EDT FRI OCT 11 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE BRANDYWINE CREEK AT CHADDS FORD.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 11:30 AM FRIDAY THE STAGE WAS 8.6 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS FORECAST. 
* FORECAST...RISE ABOVE FLOOD STAGE EARLY THIS AFTERNOON AND CONTINUE TO RISE
  TO NEAR 10.3 FEET BY LATE THIS AFTERNOON. THE CREEK WILL FALL BELOW FLOOD
  STAGE BY TONIGHT.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    8.60  FRI 11 AM   10.3    FRI 4 PM 

&&

GORSE

3 follow-up statements

536 
WGUS81 KPHI 111926
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
326 PM EDT FRI OCT 11 2013

...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.

&&

PAC029-045-120526-
/O.EXT.KPHI.FL.W.0046.000000T0000Z-131012T0900Z/
/CDFP1.1.ER.131011T1805Z.131011T2200Z.131012T0300Z.NO/
326 PM EDT FRI OCT 11 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 2:30 PM FRIDAY THE STAGE WAS 9.1 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE CREEK WILL CONTINUE RISING TO NEAR 9.5 FEET TOWARD EARLY THIS
  EVENING...THEN FALL BELOW FLOOD STAGE TONIGHT.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.05  FRI 2 PM      9.5   FRI 6 PM 

&&

154 
WGUS81 KPHI 120146
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
946 PM EDT FRI OCT 11 2013

...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.

&&

PAC029-045-121100-
/O.EXT.KPHI.FL.W.0046.000000T0000Z-131012T1100Z/
/CDFP1.1.ER.131011T1805Z.131011T2315Z.131012T0500Z.NO/
946 PM EDT FRI OCT 11 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  8:37 PM FRIDAY THE STAGE WAS 9.4 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER CRESTED EARLIER AND WILL NOW CONTINUE TO FALL...GOING 
  BELOW FLOOD STAGE AFTER MIDNIGHT TONIGHT.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.41  FRI 9 PM     CRESTED EARLIER AROUND 7 PM 

&&

120 
WGUS81 KPHI 120743
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
343 AM EDT SAT OCT 12 2013

...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.

&&

PAC029-045-120813-
/O.CAN.KPHI.FL.W.0046.000000T0000Z-131012T1100Z/
/CDFP1.1.ER.131011T1805Z.131011T2315Z.131012T0530Z.NO/
343 AM EDT SAT OCT 12 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  2:30 AM SATURDAY THE STAGE WAS 8.8 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FELL BELOW FLOOD STAGE AT  1:30 AM SATURDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 3.7 FEET BY SUNDAY MORNING.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    8.80  SAT 2 AM     7.2    SAT 8 AM 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 12:19 AM EDT	Special Weather Statement	PHI	Chester	86 min
Oct 11, 3:15 AM EDT	Areal Flood Advisory	PHI	Chester	9 hr
Oct 11, 4:43 AM EDT	Areal Flood Advisory	PHI	Delaware	4 hr
Oct 11, 4:47 AM EDT	Areal Flood Advisory	PHI	Montgomery, Philadelphia	118 min
Oct 11, 5:08 AM EDT	Special Weather Statement	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	3 hr
Oct 11, 8:32 AM EDT	River Flood Warning	PHI	Chester	6 hr

Nearby

River Flood Warnings in Pennsylvania, 2013 Every river flood warning in 2013

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.