Alert archive / Pennsylvania / River Flood Warnings in 2008

River Flood Warning 57, NWS Philadelphia/Mount Holly

December 12, 2008Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 12, 2008, 11:17 AM EST for Chester County, Delaware County, Pennsylvania. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Dec 12, 2008, 11:17 AM EST (16:17 UTC)
Expired: Dec 12, 2008, 8:21 PM EST
In force: 9 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 16:16 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 9.67 ft at Dec 12, 2008, 1:00 PM EST.

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.

000 
WGUS41 KPHI 121617
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1117 AM EST FRI DEC 12 2008

...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

...MINOR FLOODING IS OCCURRING AND FORECAST TO FALL BELOW FLOOD STAGE 
FOR THE BRANDYWINE CREEK...

PAC029-045-122134-
/O.NEW.KPHI.FL.W.0057.081212T1617Z-081212T2134Z/
/CDFP1.1.ER.081212T1510Z.081212T1530Z.081212T1534Z.NO/
1117 AM EST FRI DEC 12 2008

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 10:30 AM FRIDAY THE STAGE WAS 9.1 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CREST AROUND 9.5 FEET BY EARLY
  FRIDAY AFTERNOON...THEN FALL BELOW FLOOD STAGE LATE FRIDAY
  AFTERNOON. 
$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.08  FRI 10 AM    9.5  FRI 1 PM 

&&

2 follow-up statements

000 
WGUS81 KPHI 121954
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
254 PM EST FRI DEC 12 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
  

...MINOR FLOODING IS OCCURRING AND FORECAST TO FALL BELOW FLOOD STAGE 
FOR THE BRANDYWINE CREEK...

PAC029-045-130419-
/O.EXT.KPHI.FL.W.0057.000000T0000Z-081213T0419Z/
/CDFP1.1.ER.081212T1510Z.081212T1815Z.081212T2219Z.NO/
254 PM EST FRI DEC 12 2008

THE FLOOD WARNING CONTINUES FOR 
  THE BRANDYWINE CREEK AT CHADDS FORD.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:45 PM FRIDAY THE STAGE WAS 9.5 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  LATE THIS AFTERNOON.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.46  FRI 3 PM     ALREADY CRESTED 

&&

000 
WGUS81 KPHI 130121
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
821 PM EST FRI DEC 12 2008

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE 
  COUNTIES

PAC029-045-130151-
/O.CAN.KPHI.FL.W.0057.000000T0000Z-081213T0419Z/
/CDFP1.1.ER.081212T1510Z.081212T1815Z.081212T2108Z.NO/
821 PM EST FRI DEC 12 2008

* AT  8:00 PM FRIDAY THE STAGE WAS 5.9 FEET. 
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 9.0 FEET. 

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    5.89  FRI 8 PM     6.6  SAT 1 AM 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 11, 9:32 PM EST	Areal Flood Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	12 hr
Dec 11, 9:47 PM EST	Areal Flood Advisory	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	6 hr
Dec 12, 12:55 AM EST	Areal Flood Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	12 hr
Dec 12, 2:12 AM EST	River Flood Warning	PHI	Berks, Schuylkill	13 hr
Dec 12, 2:41 AM EST	River Flood Warning	PHI	Montgomery	10 hr
Dec 12, 2:48 AM EST	Areal Flood Advisory	PHI	Carbon, Monroe, Northampton	6 hr
Dec 12, 3:46 AM EST	River Flood Warning	PHI	Chester	10 hr
Dec 12, 7:45 AM EST	River Flood Warning	PHI	Bucks	7 hr
Dec 12, 8:34 AM EST	Areal Flood Advisory	PHI	Bucks, Carbon, Lehigh, Monroe, Northampton	3 hr
Dec 12, 9:00 AM EST	Coastal Flood Advisory	PHI	Delaware, Philadelphia	6 hr
Dec 12, 9:02 AM EST	River Flood Warning	PHI	Montgomery, Philadelphia	6 hr

Nearby

River Flood Warnings in Pennsylvania, 2008 Every river flood warning in 2008

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.