Alert archive / Pennsylvania / River Flood Warnings in 2011
River Flood Warning 199, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 24, 2011, 4:44 AM EDT for Chester County, Delaware County, Pennsylvania. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Sep 24, 2011, 4:44 AM EDT (08:44 UTC)
- Expired
- Sep 24, 2011, 6:35 PM 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 08:45 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 10.90 ft at Sep 24, 2011, 11:00 AM 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.
466
WGUS41 KPHI 240844
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
444 AM EDT SAT SEP 24 2011
...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.
&&
PAC029-045-241444-
/O.NEW.KPHI.FL.W.0199.110924T0844Z-110924T1807Z/
/CDFP1.1.ER.110924T0742Z.110924T1000Z.110924T1207Z.NO/
444 AM EDT SAT SEP 24 2011
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 4:30 AM SATURDAY THE STAGE WAS 9.1 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE TO RISE TO NEAR 9.5 FEET EARLY THIS MORNING. THE RIVER WILL FALL BELOW
FLOOD STAGE BY LATE MORNING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 8.73 SAT 2 AM 9.5 SAT 6 AM
&&3 follow-up statements
496
WGUS81 KPHI 241022
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
622 AM EDT SAT SEP 24 2011
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVER IN
PENNSYLVANIA...
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-045-241922-
/O.EXT.KPHI.FL.W.0199.000000T0000Z-110924T1922Z/
/CDFP1.1.ER.110924T0757Z.110924T1200Z.110924T1322Z.NO/
622 AM EDT SAT SEP 24 2011
THE FLOOD WARNING CONTINUES FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 6:15 AM SATURDAY THE STAGE WAS 9.6 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 9.8 FEET BY THIS
MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE LATE THIS MORNING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 9.63 SAT 6 AM 9.8 SAT 8 AM
&&735
WGUS81 KPHI 241416
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1016 AM EDT SAT SEP 24 2011
...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.
&&
PAC029-045-250016-
/O.EXT.KPHI.FL.W.0199.000000T0000Z-110925T0403Z/
/CDFP1.2.ER.110924T0757Z.110924T1800Z.110924T2203Z.NO/
1016 AM EDT SAT SEP 24 2011
THE FLOOD WARNING CONTINUES FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 10:00 AM SATURDAY THE STAGE WAS 10.8 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.1 FEET BY THIS
AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE THIS EVENING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 10.81 SAT 10 AM 11.1 SAT 2 PM
&&137
WGUS81 KPHI 242236
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
635 PM EDT SAT SEP 24 2011
...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE
COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-045-242305-
/O.CAN.KPHI.FL.W.0199.000000T0000Z-110925T0403Z/
/CDFP1.1.ER.110924T0757Z.110924T1430Z.110924T2042Z.NO/
635 PM EDT SAT SEP 24 2011
THE FLOOD WARNING IS CANCELLED FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 6:30 PM SATURDAY THE STAGE WAS around 8.0 FEET and falling.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.5 FEET BY TOMORROW
MORNING.
* IMPACT...AT 11.8 FEET...BRANDYWINE RIVER MUSEUM BEGINS TO TAKE ON WATER
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 8.00 SAT 6 PM crested
&&The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 8:29 PM EDT | Special Weather Statement | PHI | Montgomery | 31 min |
| Sep 23, 10:31 PM EDT | Areal Flood Warning | PHI | Bucks | 6 hr |
| Sep 23, 11:48 PM EDT | Areal Flood Warning | PHI | Philadelphia | 5 hr |
| Sep 23, 11:58 PM EDT | River Flood Warning | PHI | Chester | 5 hr |
| Sep 24, 1:04 AM EDT | River Flood Warning | PHI | Bucks | 5 hr |
| Sep 24, 4:13 AM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 7 hr |
| Sep 24, 5:29 AM EDT | Areal Flood Warning | PHI | Chester, Montgomery | 5 hr |
Nearby
River Flood Warnings in Pennsylvania, 2011Every river flood warning in 2011
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.