Alert archive / Pennsylvania / River Flood Warnings in 2011
River Flood Warning 222, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Dec 8, 2011, 2:51 AM EST for Chester County, Delaware County, Pennsylvania. It took effect at Dec 8, 2011, 4:05 AM EST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Dec 8, 2011, 2:51 AM EST (07:51 UTC)
- In effect from
- Dec 8, 2011, 4:05 AM EST
- Expired
- Dec 8, 2011, 4:14 PM EST
- In force
- 12 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 07:50 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 9.95 ft at Dec 8, 2011, 10:00 AM 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.
619
WGUS41 KPHI 080751
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
251 AM EST THU DEC 8 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.
&&
PAC029-045-081351-
/O.NEW.KPHI.FL.W.0222.111208T1200Z-111208T1810Z/
/CDFP1.1.ER.111208T1200Z.111208T1200Z.111208T1210Z.NO/
251 AM EST THU DEC 8 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLOOD WARNING FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* FROM THIS MORNING TO THIS AFTERNOON...OR UNTIL THE WARNING IS
CANCELLED.
* AT 2:30 AM THURSDAY THE STAGE WAS 8.9 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS FORECAST.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 8.90 THU 2 AM 9.0 THU 7 AM
&&3 follow-up statements
340
WGUS81 KPHI 080908
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
408 AM EST THU DEC 8 2011
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-081520-
/O.EXT.KPHI.FL.W.0220.000000T0000Z-111208T1520Z/
/DWNP1.1.ER.111208T0447Z.111208T0715Z.111208T0920Z.NO/
408 AM EST THU DEC 8 2011
THE FLOOD WARNING CONTINUES FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 3:46 AM THURSDAY THE STAGE WAS 8.4 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS OCCURRING.
* FORECAST...THE RIVER WILL FALL BELOW FLOOD STAGE EARLY THIS MORNING.
$$
PAC029-045-081908-
/O.EXT.KPHI.FL.W.0222.111208T0905Z-111208T2100Z/
/CDFP1.1.ER.111208T0807Z.111208T1200Z.111208T1500Z.NO/
408 AM EST THU DEC 8 2011
THE FLOOD WARNING CONTINUES FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 3:45 AM THURSDAY THE STAGE WAS 9.1 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 9.4 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.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 8.37 THU 4 AM CRESTED AND FALLING
CHADDS FORD 9.0 9.09 THU 4 AM 9.4 THU 7 AM
&&189
WGUS81 KPHI 081413
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
913 AM EST THU DEC 8 2011
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-045-090013-
/O.EXT.KPHI.FL.W.0222.000000T0000Z-111209T0240Z/
/CDFP1.1.ER.111208T0807Z.111208T1600Z.111208T2040Z.NO/
913 AM EST THU DEC 8 2011
THE FLOOD WARNING CONTINUES FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 8:30 AM THURSDAY THE STAGE WAS 9.9 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.1 FEET BY LATE
THIS MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE LATE THIS
AFTERNOON.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
CHADDS FORD 9.0 9.91 THU 8 AM 10.1 THU 11 AM
&&301
WGUS81 KPHI 082114
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
414 PM EST THU DEC 8 2011
...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...NEW JERSEY...
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE
COUNTIES
RAMAPO RIVER AT POMPTON LAKES AFFECTING BERGEN...MORRIS AND PASSAIC
COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-045-082144-
/O.CAN.KPHI.FL.W.0222.000000T0000Z-111209T0240Z/
/CDFP1.1.ER.111208T0807Z.111208T1500Z.111208T1916Z.NO/
414 PM EST THU DEC 8 2011
THE FLOOD WARNING IS CANCELLED FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 3:45 PM THURSDAY THE STAGE WAS 7.8 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FELL BELOW FLOOD STAGE AT 2:16 PM THURSDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.3 FEET BY TOMORROW
MORNING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
NJC003-027-031-082144-
/O.CAN.KPHI.FL.W.0229.000000T0000Z-111209T0000Z/
/PPTN4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
414 PM EST THU DEC 8 2011
THE FLOOD WARNING IS CANCELLED FOR
THE RAMAPO RIVER AT POMPTON LAKES.
* AT 3:15 PM THURSDAY THE STAGE WAS 11.0 FEET.
* FLOOD STAGE IS 11.5 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 11.3 FEET. THE
RIVER WILL CONTINUE TO FALL TO 10.5 FEET BY TOMORROW MORNING.
* IMPACT...AT 11.5 FEET...SOUTH SECTION OF POMPTON LAKES EXPERIENCES
FLOODING.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
RAMAPO RIVER
POMPTON LAKES 11.5 11.02 THU 3 PM CRESTED AND FALLING
BRANDYWINE CREEK
CHADDS FORD 9.0 7.85 THU 4 PM CRESTED AND FALLING
&&The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 7, 8:04 PM EST | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 18 hr |
| Dec 7, 9:41 PM EST | River Flood Warning | PHI | Delaware | 5 hr |
| Dec 7, 10:12 PM EST | River Flood Warning | PHI | Bucks | 12 hr |
| Dec 7, 11:40 PM EST | River Flood Warning | PHI | Chester | 8 hr |
| Dec 8, 1:58 AM EST | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 5 hr |
| Dec 8, 2:21 AM EST | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 10 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.