Alert archive / Delaware / River Flood Warnings in 2018

River Flood Warning 41, NWS Philadelphia/Mount Holly

August 14, 2018New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 14, 2018, 1:46 AM EDT for New Castle County, Delaware. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Aug 14, 2018, 1:46 AM EDT (05:46 UTC)
Expired: Aug 14, 2018, 10:00 AM EDT
In force: 8 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County New Castle County, DE

The radar

The Philadelphia radar (KDIX), 98 km from the middle of the area, began a volume at 05:47 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 Wilmington (WMND1). The gauge peaked at 16.50 ft at Aug 14, 2018, 2:00 AM EDT.

Action stage: 22 ft
Minor stage: 24.5 ft
Moderate stage: 26 ft
Major stage: 27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01481500, 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 140546
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
146 AM EDT Tue Aug 14 2018

...The National Weather Service in Mount Holly NJ has issued a
Flood Warning for the Brandywine Creek from around Chadds Ford
to the Wilmington area...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think it is.

&&

PAC029-045-141145-
/O.EXT.KPHI.FL.W.0035.000000T0000Z-180814T2120Z/
/CDFP1.2.ER.180813T1815Z.180814T0145Z.180814T1520Z.NO/
146 AM EDT Tue Aug 14 2018

The Flood Warning continues for 
 The Brandywine Creek At Chadds Ford.
* Until late this morning or until the warning is cancelled.
* At 12:30 AM, the river level was 10.86 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river level will continue to fall and it should
  be back below flood stage late this morning.
* Impact...At 10.0 feet, the intersections of Creek Road and
  Route 926 near Pocopson floods.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford           9.0   10.86  Tue 1230 AM   Crested 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      

$$

DEC003-141145-
/O.NEW.KPHI.FL.W.0041.180814T0546Z-180814T1400Z/
/WMND1.1.ER.180814T0503Z.180814T0600Z.180814T0800Z.UU/
146 AM EDT Tue Aug 14 2018

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Brandywine Creek at Wilmington.
* For this morning or until the warning is cancelled.
* At 1:15 AM, the river level was 16.53 feet.
* Flood stage is 16.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Impact...At 16.5 feet...North Park Drive, west of North Market
  Street, in Brandywine State Park is subject to flooding and
  closures.
* Flood history...This crest compares to a previous crest of 16.7
  feet on Sep 8 2011.

&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Wilmington            16.5   16.53  Tue 115 AM   16.6    Tue 2 AM 
 
&&
 
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560                        

$$

Iovino

2 follow-up statements

322 
WGUS81 KPHI 140754
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
354 AM EDT Tue Aug 14 2018

...The Flood Warning continues for the Brandywine Creek from
around Chadds Ford down to the Wilmington area...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think it is.

&&

PAC029-045-141754-
/O.EXT.KPHI.FL.W.0035.000000T0000Z-180814T1800Z/
/CDFP1.2.ER.180813T1815Z.180814T0145Z.180814T1200Z.NO/
354 AM EDT Tue Aug 14 2018

The Flood Warning continues for
  The Brandywine Creek at Chadds Ford.
* At 3:30 AM, the river level was 9.62 feet.
* Flood stage is 9.0 feet.
* Forecast...The river will continue to fall and it should 
  return back below flood stage this morning.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford            9.0   9.62  Tue 330 AM    Crested 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567                                     

$$

DEC003-141724-
/O.EXT.KPHI.FL.W.0041.000000T0000Z-180814T1724Z/
/WMND1.1.ER.180814T0503Z.180814T0900Z.180814T1124Z.UU/
354 AM EDT Tue Aug 14 2018

The Flood Warning continues for
  The Brandywine Creek at Wilmington.
* At 3:15 AM, the river level was 16.57 feet.
* Flood stage is 16.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river level will continue rising to near 16.9
  feet before falling back below flood stage this morning.
* Impact...At 17.0 feet...Some flooding begins in the historic
  Breck's Mill area in Montchanin.
* Flood history...This crest compares to a previous crest of
  16.9 feet on Oct 1 2010.
  
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Wilmington            16.5   16.57  Tue 315 AM   16.9   Tue 5 AM 
 
&&
 
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
                                      
$$

Iovino

195 
WGUS81 KPHI 141056
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
656 AM EDT Tue Aug 14 2018

...The Flood Warning is cancelled for the Brandywine Creek...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think it is.

&&

PAC029-045-141126-
/O.CAN.KPHI.FL.W.0035.000000T0000Z-180814T1800Z/
/CDFP1.2.ER.180813T1815Z.180814T0145Z.180814T0831Z.NO/
656 AM EDT Tue Aug 14 2018

The Flood Warning is cancelled for
  The Brandywine Creek at Chadds Ford.
* At 6:30 AM, the creek level was 6.5 feet.
* Flood stage is 9.0 feet.
* The creek fell below flood stage at 4:31 AM.
* Forecast...The creek level will continue to fall.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford            9.0    6.50  Tue 630 AM   Crested 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      

$$

DEC003-141126-
/O.CAN.KPHI.FL.W.0041.000000T0000Z-180814T1724Z/
/WMND1.1.ER.180814T0503Z.180814T0615Z.180814T0732Z.UU/
656 AM EDT Tue Aug 14 2018

The Flood Warning is cancelled for
  The Brandywine Creek at Wilmington.
* At 6:15 AM, the creek level was 15.99 feet.
* Flood stage is 16.5 feet.
* The creek fell below flood stage at 3:32 AM.
* Forecast...The creek level will continue to fall.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Wilmington             16.5   15.99  Tue 615 AM  Crested
 
&&
 
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
                                      

$$

Iovino

Nearby

River Flood Warnings in Delaware, 2018 Every 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.