Alert archive / Pennsylvania / River Flood Warnings in 2023
River Flood Warning 15, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Jun 27, 2023, 2:23 AM EDT for Chester County, Pennsylvania. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 27, 2023, 2:23 AM EDT (06:23 UTC)
- Expired
- Jun 27, 2023, 8:36 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Minor
County Chester County, PA
The radar
The Philadelphia radar (KDIX), 108 km from the middle of the area, began a volume at 06:27 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).
- 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.
181
WGUS41 KPHI 270623
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
223 AM EDT Tue Jun 27 2023
...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...
Be especially cautious at night when it is harder to recognize the
dangers of flooding. Turn around...don't drown when encountering
flooded roads. Most flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
The next statement will be issued this morning by 700 AM EDT.
&&
PAC029-271100-
/O.NEW.KPHI.FL.W.0015.230627T0623Z-230627T1100Z/
/DWNP1.1.ER.230627T0529Z.230627T0900Z.230627T1551Z.NO/
223 AM EDT Tue Jun 27 2023
...FLOOD WARNING IN EFFECT FROM EARLY THIS MORNING TO THIS MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...East Branch Brandywine Creek Below Downingtown.
* WHEN...From early this morning to this morning.
* IMPACTS...At 6.0 feet, Open adjacent land next to the creek floods.
At 8.0 feet, Dowlin Forge Road begins to flood.
At 9.0 feet, High water on the Brandywine sends backwater up
Beaver Creek. Beaver Creek floods inundating parks and the
Downingtown Little League fields.
* ADDITIONAL DETAILS...
- At 1:45 AM EDT Tuesday the stage was 7.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 1:45 AM EDT Tuesday was 7.6 feet.
- Forecast...The river is expected to rise to a crest of 8.8
feet early this morning. It will then fall below flood stage
late this morning.
- Flood stage is 7.0 feet.
- Flood History...This crest compares to a previous crest of
9.0 feet on 04/03/2005.
- http://www.weather.gov/safety/flood
&&
Stream Fld Observed Fcsts (2 am) Crest
Location Stg Stg Day/Time Wed Thu Stg Time Date
East Branch Bran
Downingtown 7.0 7.6 Tue 1 am 3.4 MSG 8.8 5am 6/27
&&
LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574
$$
Staarmann3 follow-up statements
830
WGUS41 KPHI 270709
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
309 AM EDT Tue Jun 27 2023
...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...
Be especially cautious at night when it is harder to recognize the
dangers of flooding. Turn around...don't drown when encountering
flooded roads. Most flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
The next statement will be issued this morning by 700 AM EDT.
&&
PAC029-271100-
/O.CON.KPHI.FL.W.0015.000000T0000Z-230627T1100Z/
/DWNP1.2.ER.230627T0529Z.230627T0900Z.230627T1648Z.NO/
309 AM EDT Tue Jun 27 2023
...FLOOD WARNING REMAINS IN EFFECT UNTIL THIS MORNING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...East Branch Brandywine Creek Below Downingtown.
* WHEN...Until this morning.
* IMPACTS...At 6.0 feet, Open adjacent land next to the creek floods.
At 8.0 feet, Dowlin Forge Road begins to flood.
At 9.0 feet, High water on the Brandywine sends backwater up
Beaver Creek. Beaver Creek floods inundating parks and the
Downingtown Little League fields.
* ADDITIONAL DETAILS...
- At 2:45 AM EDT Tuesday the stage was 8.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 2:45 AM EDT Tuesday was 8.8 feet.
- Forecast...The river is expected to rise to a crest of 9.3
feet early this morning. It will then fall below flood stage
this afternoon.
- Flood stage is 7.0 feet.
- Flood History...This crest compares to a previous crest of
9.3 feet on 02/06/2004.
- http://www.weather.gov/safety/flood
&&
Stream Fld Observed Fcsts (3 am) Crest
Location Stg Stg Day/Time Wed Thu Stg Time Date
East Branch Bran
Downingtown 7.0 8.8 Tue 2 am 3.4 MSG 9.3 5am 6/27
&&
LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574
$$
Staarmann436
WGUS81 KPHI 270910
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
510 AM EDT Tue Jun 27 2023
...The Flood Warning is extended for the following rivers in
Pennsylvania...
East Branch Brandywine Creek Below Downingtown affecting Chester
County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
The next statement will be issued this afternoon by 100 PM EDT.
&&
PAC029-271700-
/O.EXT.KPHI.FL.W.0015.000000T0000Z-230627T1700Z/
/DWNP1.2.ER.230627T0529Z.230627T1000Z.230627T1648Z.NO/
510 AM EDT Tue Jun 27 2023
...FLOOD WARNING NOW IN EFFECT UNTIL THIS AFTERNOON...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...East Branch Brandywine Creek Below Downingtown.
* WHEN...Until this afternoon.
* IMPACTS...At 6.0 feet, Open adjacent land next to the creek floods.
At 8.0 feet, Dowlin Forge Road begins to flood.
At 9.0 feet, High water on the Brandywine sends backwater up
Beaver Creek. Beaver Creek floods inundating parks and the
Downingtown Little League fields.
* ADDITIONAL DETAILS...
- At 4:45 AM EDT Tuesday the stage was 9.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:45 AM EDT Tuesday was 9.2 feet.
- Forecast...The river is expected to rise to a crest of 9.2
feet this morning. It will then fall below flood stage this
afternoon.
- Flood stage is 7.0 feet.
- Flood History...This crest compares to a previous crest of
9.2 feet on 10/23/2003.
- http://www.weather.gov/safety/flood
&&
Stream Fld Observed Fcsts (5 am) Crest
Location Stg Stg Day/Time Wed Thu Stg Time Date
East Branch Bran
Downingtown 7.0 9.2 Tue 4 am 3.4 MSG 9.2 6am 6/27
&&
LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574
$$
Staarmann397 WGUS81 KPHI 271236 FLSPHI Flood Statement National Weather Service Mount Holly NJ 836 AM EDT Tue Jun 27 2023 ...The Flood Warning is cancelled for the following rivers in Pennsylvania... East Branch Brandywine Creek Below Downingtown affecting Chester County. PAC029-271345- /O.CAN.KPHI.FL.W.0015.000000T0000Z-230627T1236Z/ /DWNP1.2.ER.230627T0529Z.230627T0830Z.230627T1127Z.NO/ 836 AM EDT Tue Jun 27 2023 ...FLOOD WARNING IS CANCELLED... The Flood Warning is cancelled for the East Branch Brandywine Creek Below Downingtown. * ADDITIONAL DETAILS... - At 7:45 AM EDT Tuesday the stage was 6.7 feet. - Forecast...The river will fall to 3.2 feet later today. - http://www.weather.gov/safety/flood && Stream Fld Observed Fcsts (9 am) Crest Location Stg Stg Day/Time Wed Thu Stg Time Date East Branch Bran Downingtown 7.0 6.7 Tue 7 am 3.3 MSG Crested & falling && LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574 $$ Kruzdlo
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 8:27 PM EDT | Special Weather Statement | PHI | Chester | 33 min |
| Jun 26, 8:33 PM EDT | Special Weather Statement | PHI | Philadelphia | 27 min |
| Jun 26, 8:36 PM EDT | Special Weather Statement | PHI | Bucks | 24 min |
| Jun 26, 8:40 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 31 min |
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 48 min |
| Jun 26, 9:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 42 min |
| Jun 26, 9:30 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 3 hr |
| Jun 26, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 43 min |
| Jun 26, 9:51 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 54 min |
| Jun 26, 9:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 42 min |
| Jun 26, 10:54 PM EDT | Areal Flood Advisory | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jun 26, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 53 min |
| Jun 26, 11:27 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 3 hr |
| Jun 26, 11:35 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Jun 27, 12:00 AM EDT | Areal Flood Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 7 hr |
| Jun 27, 12:51 AM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Jun 27, 1:23 AM EDT | Special Weather Statement | PHI | Montgomery | 37 min |
| Jun 27, 2:29 AM EDT | Special Weather Statement | PHI | Delaware | 31 min |
| Jun 27, 3:01 AM EDT | Special Weather Statement | PHI | Delaware, Montgomery, Philadelphia | 29 min |
| Jun 27, 3:02 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 46 min |
| Jun 27, 3:26 AM EDT | River Flood Warning | PHI | Delaware | 4 hr |
| Jun 27, 3:48 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 17 hr |
| Jun 27, 3:54 AM EDT | River Flood Warning | PHI | Chester, Delaware | 5 hr |
| Jun 27, 6:14 AM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Jun 27, 6:16 AM EDT | Areal Flood Warning | PHI | Chester, Delaware | 3 hr |
| Jun 27, 10:08 AM EDT | River Flood Warning | PHI | Chester, Delaware | 109 min |
| Jun 27, 12:45 PM EDT | Special Weather Statement | PHI | Berks | 30 min |
| Jun 27, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jun 27, 2:18 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 22 min |
| Jun 27, 2:21 PM EDT | Special Weather Statement | PHI | Berks | 24 min |
| Jun 27, 2:42 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Jun 27, 2:57 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Jun 27, 3:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 38 min |
| Jun 27, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 19 min |
| Jun 27, 3:33 PM EDT | Special Weather Statement | PHI | Delaware | 27 min |
| Jun 27, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Jun 27, 4:06 PM EDT | Special Weather Statement | PHI | Northampton | 24 min |
| Jun 27, 4:24 PM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Jun 27, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 32 min |
| Jun 27, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 42 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 51 min |
| Jun 27, 4:58 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 3 hr |
| Jun 27, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 44 min |
| Jun 27, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 38 min |
| Jun 27, 5:43 PM EDT | Special Weather Statement | PHI | Monroe, Northampton | 32 min |
| Jun 27, 5:44 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 5 hr |
| Jun 27, 5:52 PM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Jun 27, 5:57 PM EDT | Areal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 3 hr |
| Jun 27, 6:15 PM EDT | Special Weather Statement | PHI | Northampton | 45 min |
Nearby
River Flood Warnings in Pennsylvania, 2023Every river flood warning in 2023
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.