Alert archive / Pennsylvania / River Flood Warnings in 2022
River Flood Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 6, 2022, 8:07 AM EDT for Chester County, Pennsylvania. It took effect at Sep 6, 2022, 9:16 AM EDT. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 6, 2022, 8:07 AM EDT (12:07 UTC)
- In effect from
- Sep 6, 2022, 9:16 AM EDT
- Expired
- Sep 6, 2022, 11:57 AM EDT
- In force
- 3 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 12:06 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 6.48 ft at Sep 6, 2022, 10:00 AM 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.
408
WGUS41 KPHI 061207
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
807 AM EDT Tue Sep 6 2022
...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...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Additional information is available at www.weather.gov/phi.
The next statement will be issued this afternoon by 545 PM EDT.
&&
PAC029-062145-
/O.NEW.KPHI.FL.W.0026.220906T1316Z-220906T2134Z/
/DWNP1.1.ER.220906T1316Z.220906T1400Z.220906T1533Z.NO/
807 AM EDT Tue Sep 6 2022
...FLOOD WARNING IN EFFECT UNTIL LATE THIS AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...East Branch Brandywine Creek Below Downingtown.
* WHEN...Until late 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.
* ADDITIONAL DETAILS...
- At 7:45 AM EDT Tuesday the stage was 5.9 feet.
- Forecast...The river is expected to rise above flood stage
this morning to a crest of 7.5 feet. 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
7.2 feet on 03/01/2021.
- http://www.weather.gov/safety/flood
&&
Stream Fld Observed Fcsts (8 am) Crest
Location Stg Stg Day/Time Wed Thu Stg Time Date
East Branch Bran
Downingtown 7.0 5.9 Tue 7 am 3.1 MSG 7.5 10am 9/06
&&
LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574
$$
Iovino1 follow-up statement
656
WGUS81 KPHI 061557
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1157 AM EDT Tue Sep 6 2022
...The Flood Warning is cancelled for the following rivers in
Pennsylvania...
East Branch Brandywine Creek Below Downingtown affecting Chester
County.
PAC029-061700-
/O.CAN.KPHI.FL.W.0026.000000T0000Z-220906T1557Z/
/DWNP1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1157 AM EDT Tue Sep 6 2022
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the East Branch Brandywine Creek Below Downingtown.
* ADDITIONAL DETAILS...
- At 11:45 AM EDT Tuesday the stage was 6.3 feet.
- Forecast...The river is expected to fall to 3.3 feet late
Wednesday morning.
- http://www.weather.gov/safety/flood
&&
Stream Fld Observed Fcsts (12 pm) Crest
Location Stg Stg Day/Time Wed Thu Stg Time Date
East Branch Bran
Downingtown 7.0 6.3 Tue 11 a 3.3 MSG Crested
&&
LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574
$$
IovinoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:11 AM EDT | Areal Flood Advisory | PHI | Berks, Chester, Delaware, Montgomery | 4 hr |
| Sep 6, 6:32 AM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Sep 6, 6:55 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 6, 6:58 AM EDT | Areal Flood Advisory | PHI | Berks | 116 min |
| Sep 6, 7:00 AM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 114 min |
| Sep 6, 7:15 AM EDT | Areal Flood Advisory | PHI | Bucks | 3 hr |
| Sep 6, 7:50 AM EDT | Areal Flood Advisory | PHI | Delaware, Philadelphia | 4 hr |
Nearby
River Flood Warnings in Pennsylvania, 2022Every river flood warning in 2022
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.