Alert archive / Pennsylvania / River Flood Warnings in 2018
River Flood Warning 86, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Dec 21, 2018, 5:20 AM EST for Chester County, Delaware County, Pennsylvania. It took effect at Dec 21, 2018, 10:53 AM EST. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 21, 2018, 5:20 AM EST (10:20 UTC)
- In effect from
- Dec 21, 2018, 10:53 AM EST
- Expired
- Dec 21, 2018, 7:29 PM EST
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Chester County, PA, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 102 km from the middle of the area, began a volume at 10:21 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 9.83 ft at Dec 21, 2018, 2:00 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.
376
WGUS41 KPHI 211020
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
520 AM EST Fri Dec 21 2018
...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.
&&
PAC029-045-211619-
/O.NEW.KPHI.FL.W.0086.181221T1640Z-181222T0142Z/
/CDFP1.1.ER.181221T1640Z.181221T1800Z.181221T1942Z.NO/
520 AM EST Fri Dec 21 2018
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 evening...Or until the warning is cancelled.
* At 4:30 AM Friday the stage was 7.4 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late this morning and continue to rise to
near 9.2 feet by this afternoon. The river will fall below flood stage by this
afternoon.
* Impact...At 10.0 feet...The intersections of Creek Road and Route 926 near
Pocopson floods upstream of Chadds Ford.
* Flood history...This crest compares to a previous crest of 9.2 feet on Sep 28
2018.
&&
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
Brandywine Creek
Chadds Ford 9.0 7.37 Fri 4 AM 9.2 Fri 1 PM
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$3 follow-up statements
505
WGUS81 KPHI 211555
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1055 AM EST Fri Dec 21 2018
...The Flood Warning continues for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Chester and Delaware
Counties
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think.
&&
PAC029-045-220154-
/O.EXT.KPHI.FL.W.0086.181221T1553Z-181222T0400Z/
/CDFP1.1.ER.181221T1420Z.181221T1800Z.181221T2200Z.NO/
1055 AM EST Fri Dec 21 2018
The Flood Warning continues for
The Brandywine Creek at Chadds Ford.
* until this evening...or until the warning is cancelled.
* At 10:30 AM Friday the stage was 9.3 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring.
* Forecast...The river will continue rising to near 9.4 feet. The
river will fall below flood stage late this afternoon.
* Impact...At 10.0 feet...The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Flood history...This crest compares to a previous crest of 9.5
feet on Oct 11 2013.
&&
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
Brandywine Creek
Chadds Ford 9.0 9.27 Fri 10 AM 9.4 Fri 1 PM
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Kruzdlo523
WGUS81 KPHI 212013
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
313 PM EST Fri Dec 21 2018
...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.
&&
PAC029-045-220612-
/O.EXT.KPHI.FL.W.0086.000000T0000Z-181222T0700Z/
/CDFP1.1.ER.181221T1420Z.181221T2100Z.181222T0100Z.NO/
313 PM EST Fri Dec 21 2018
The Flood Warning continues for
The Brandywine Creek at Chadds Ford.
* At 2:30 PM Friday the stage was 9.9 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring.
* Forecast...The river will continue rising to near 10.0 feet and
then will fall below flood stage this evening.
* Impact...At 10.0 feet...The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Flood history...This crest compares to a previous crest of 10.0
feet on Apr 14 2010.
&&
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
Brandywine Creek
Chadds Ford 9.0 9.85 Fri 2 PM 10.0 Fri 4 PM
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Kruzdlo825
WGUS81 KPHI 220029
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
729 PM EST Fri Dec 21 2018
...The Flood Warning is cancelled for the following rivers in Pennsylvania...
Brandywine Creek At Chadds Ford affecting Chester and Delaware Counties
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think.
&&
PAC029-045-220059-
/O.CAN.KPHI.FL.W.0086.000000T0000Z-181222T0700Z/
/CDFP1.1.ER.181221T1420Z.181221T1845Z.181221T2258Z.NO/
729 PM EST Fri Dec 21 2018
The Flood Warning is cancelled for
The Brandywine Creek at Chadds Ford.
* At 6:30 PM Friday the stage was 8.6 feet.
* Flood stage is 9.0 feet.
* Fell below flood stage at 5:58 PM Friday.
* Forecast...The river will continue to fall to 4.3 feet by Sunday morning.
* Impact...At 8.0 feet...Open adjacent land next to the creek floods.
* Flood history...This crest compares to a previous crest of 9.2 feet on Sep 28
2018.
&&
FLD OBSERVED FORECAST
LOCATION STG STG DAY TIME CREST
Brandywine Creek
Chadds Ford 9.0 8.64 Fri 6 PM crested and falling
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 3:44 AM EST | River Flood Warning | PHI | Chester | 9 hr |
| Dec 21, 4:02 AM EST | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Dec 21, 4:09 AM EST | Areal Flood Warning | PHI | Bucks, Lehigh, Northampton | 16 hr |
| Dec 21, 4:27 AM EST | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 8 hr |
| Dec 21, 4:36 AM EST | Areal Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 7 hr |
| Dec 21, 5:10 AM EST | River Flood Warning | PHI | Delaware | 5 hr |
| Dec 21, 8:04 AM EST | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 7 hr |
| Dec 21, 8:51 AM EST | River Flood Warning | PHI | Bucks | 6 hr |
| Dec 21, 12:15 PM EST | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 4 hr |
Nearby
River Flood Warnings in Pennsylvania, 2018Every river flood warning in 2018
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.