Alert archive / Pennsylvania / River Flood Warnings in 2011
River Flood Warning 145, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 6, 2011, 7:03 PM EDT for Chester County, Pennsylvania. It took effect at Sep 6, 2011, 8:17 PM EDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Sep 6, 2011, 7:03 PM EDT (23:03 UTC)
- In effect from
- Sep 6, 2011, 8:17 PM EDT
- Expired
- Sep 7, 2011, 10:55 AM EDT
- In force
- 15 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- Minor
County Chester County, PA
The radar
The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 23:02 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 East Branch Brandywine Creek below Downingtown (DWNP1). The gauge peaked at 11.63 ft at Sep 7, 2011, 10:00 PM EDT.
- Action stage
- 6 ft
- Minor stage
- 7 ft
- Moderate stage
- 9 ft
- Major stage
- 11 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01480870, 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.
219
WGUS41 KPHI 062303
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
703 PM EDT TUE SEP 6 2011
...THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A FLOOD
WARNING FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER
COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-070503-
/O.NEW.KPHI.FL.W.0145.110907T0017Z-110907T1325Z/
/DWNP1.1.ER.110907T0017Z.110907T0300Z.110907T0725Z.NO/
703 PM EDT TUE SEP 6 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLOOD WARNING FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL WEDNESDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 6:45 PM TUESDAY THE STAGE WAS 5.2 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO RISE
TO NEAR 8.0 FEET BY TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE BY
EARLY WEDNESDAY.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 5.19 TUE 7 PM 8.0 TUE 11 PM
&&5 follow-up statements
078
WGUS41 KPHI 070416
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1216 AM EDT WED SEP 7 2011
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER
COUNTY
CHRISTINA RIVER AT COOCHS BRIDGE AFFECTING NEW CASTLE COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
DEC003-071016-
/O.EXT.KPHI.FL.W.0140.000000T0000Z-110907T1222Z/
/CHBD1.2.ER.110906T2127Z.110907T0216Z.110907T0622Z.NO/
1216 AM EDT WED SEP 7 2011
THE FLOOD WARNING CONTINUES FOR
THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL THIS MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 12:01 AM WEDNESDAY THE STAGE WAS 11.6 FEET.
* FLOOD STAGE IS 10.5 FEET.
* MODERATE FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY
AFTER MIDNIGHT THIS MORNING.
* IMPACT...AT 10.0 FEET...FLOODING BEGINS IN THE TOWN OF CHRISTIANA.
$$
PAC029-071016-
/O.EXT.KPHI.FL.W.0145.000000T0000Z-110907T1305Z/
/DWNP1.1.ER.110907T0039Z.110907T0330Z.110907T0705Z.NO/
1216 AM EDT WED SEP 7 2011
THE FLOOD WARNING CONTINUES FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL THIS MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 11:45 PM TUESDAY THE STAGE WAS 8.1 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL FALL TO BELOW FLOOD STAGE BY
EARLY THIS MORNING.
$$
PAC045-070446-
/O.CAN.KPHI.FL.W.0146.000000T0000Z-110907T0921Z/
/CHSP1.1.ER.110907T0028Z.110907T0215Z.110907T0315Z.NO/
1216 AM EDT WED SEP 7 2011
* AT 12:00 AM WEDNESDAY THE STAGE WAS 7.4 FEET.
* FLOOD STAGE IS 8.0 FEET.
* NO FLOODING IS CURRENTLY FORECAST.
* IMPACT...AT 10.5 FEET...FLOOD DAMAGE BEGINS IN THE CITY OF CHESTER.
$$
DEC003-070446-
/O.CAN.KPHI.FL.W.0148.000000T0000Z-110907T0936Z/
/DPKD1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1216 AM EDT WED SEP 7 2011
* AT 11:46 PM TUESDAY THE STAGE WAS 12.6 FEET.
* FLOOD STAGE IS 13.0 FEET.
* NO FLOODING IS CURRENTLY FORECAST.
* IMPACT...AT 13.3 FEET...DELAWARE ROUTE 7 BEGINS TO FLOOD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
CHESTER CREEK
CHESTER 8.0 7.44 WED 12 AM 7.4 WED 1 AM
CHRISTINA RIVER
COOCHS BRIDGE 10.5 11.64 WED 12 AM 11.2 WED 1 AM
WHITE CLAY CREEK
NEWARK 13.0 12.59 WED 12 AM 12.2 WED 1 AM
BRANDYWINE CREEK
DOWNINGTOWN 7.0 8.13 WED 12 AM 8.1 WED 1 AM
&&142
WGUS81 KPHI 070825
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
425 AM EDT WED SEP 7 2011
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY
BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-071435-
/O.EXT.KPHI.FL.W.0145.000000T0000Z-110907T1435Z/
/DWNP1.1.ER.110907T0039Z.110907T0330Z.110907T0835Z.NO/
425 AM EDT WED SEP 7 2011
THE FLOOD WARNING CONTINUES FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 3:46 AM WEDNESDAY THE STAGE WAS 8.1 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS OCCURRING.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY
EARLY THIS MORNING.
$$
PAC029-045-071825-
/O.EXT.KPHI.FL.W.0159.000000T0000Z-110909T0925Z/
/CDFP1.1.ER.110907T0625Z.110907T1200Z.110909T0325Z.NO/
425 AM EDT WED SEP 7 2011
THE FLOOD WARNING CONTINUES FOR
THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 4:00 AM WEDNESDAY THE STAGE WAS 9.4 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.6 FEET BY THIS
MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE LATE TOMORROW EVENING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926
NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 8.12 WED 4 AM 6.4 WED 5 AM
CHADDS FORD 9.0 9.35 WED 4 AM 10.6 WED 8 AM
&&197
WGUS41 KPHI 070853
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
453 AM EDT WED SEP 7 2011
...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY FOR THE
FOLLOWING RIVERS IN PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER
COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-071453-
/O.EXT.KPHI.FL.W.0145.000000T0000Z-110908T0812Z/
/DWNP1.2.ER.110907T0039Z.110907T1300Z.110908T0212Z.NO/
453 AM EDT WED SEP 7 2011
...OBSERVED FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 4:45 AM WEDNESDAY THE STAGE WAS 9.1 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.9 FEET BY LATE
THIS MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE TONIGHT.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 9.07 WED 5 AM 10.9 WED 9 AM
&&325
WGUS81 KPHI 071158
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
758 AM EDT WED SEP 7 2011
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-072046-
/O.EXT.KPHI.FL.W.0145.000000T0000Z-110907T2046Z/
/DWNP1.2.ER.110907T0039Z.110907T1015Z.110907T1446Z.NO/
758 AM EDT WED SEP 7 2011
THE FLOOD WARNING CONTINUES FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 7:45 AM WEDNESDAY THE STAGE WAS 9.0 FEET.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY
LATE THIS MORNING.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 8.96 WED 8 AM CRESTED
&&330
WGUS81 KPHI 071455
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1055 AM EDT WED SEP 7 2011
...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN
PENNSYLVANIA...
EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER
COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE
WATER MAY BE DEEPER THAN YOU THINK.
&&
PAC029-071525-
/O.CAN.KPHI.FL.W.0145.000000T0000Z-110907T2046Z/
/DWNP1.2.ER.110907T0039Z.110907T1015Z.110907T1406Z.NO/
1055 AM EDT WED SEP 7 2011
THE FLOOD WARNING IS CANCELLED FOR
THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 10:45 AM WEDNESDAY THE STAGE WAS 6.5 FEET.
* FLOOD STAGE IS 7.0 FEET.
* FELL BELOW FLOOD STAGE AT 10:06 AM WEDNESDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 4.6 FEET BY TOMORROW
MORNING.
$$
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
BRANDYWINE CREEK
DOWNINGTOWN 7.0 6.53 WED 11 AM FALLING
&&The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 8:19 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 116 min |
| Sep 5, 9:32 PM EDT | Areal Flood Warning | PHI | Montgomery | 9 hr |
| Sep 5, 10:18 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 4 hr |
| Sep 5, 10:53 PM EDT | Areal Flood Advisory | PHI | Chester, Montgomery | 3 hr |
| Sep 5, 11:04 PM EDT | Areal Flood Advisory | PHI | Bucks | 6 hr |
| Sep 5, 11:25 PM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
| Sep 6, 12:22 AM EDT | Areal Flood Advisory | PHI | Delaware, Philadelphia | 3 hr |
| Sep 6, 1:42 AM EDT | Areal Flood Advisory | PHI | Chester, Montgomery | 3 hr |
| Sep 6, 2:09 AM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 3 hr |
| Sep 6, 3:40 AM EDT | Areal Flood Warning | PHI | Berks | 3 hr |
| Sep 6, 5:43 PM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 6, 5:49 PM EDT | Areal Flood Warning | PHI | Philadelphia | 20 hr |
| Sep 6, 6:10 PM EDT | Areal Flood Warning | PHI | Bucks, Monroe, Northampton | 71 hr |
| Sep 6, 6:32 PM EDT | Areal Flood Warning | PHI | Montgomery | 26 hr |
| Sep 6, 6:38 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 23 hr |
| Sep 6, 6:44 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 15 hr |
| Sep 6, 6:48 PM EDT | Areal Flood Warning | PHI | Bucks | 31 hr |
| Sep 6, 7:41 PM EDT | River Flood Warning | PHI | Delaware | 5 hr |
| Sep 6, 7:52 PM EDT | River Flood Warning | PHI | Bucks | 52 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.