Alert archive / Delaware / River Flood Warnings in 2020

River Flood Warning 9, NWS Philadelphia/Mount Holly

April 13, 2020New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Apr 13, 2020, 12:13 PM EDT for New Castle County, Delaware. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Apr 13, 2020, 12:13 PM EDT (16:13 UTC)
Expired: Apr 13, 2020, 3:28 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 102 km from the middle of the area, began a volume at 16:17 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 Red Clay Creek at Wooddale (RCCD1). The gauge peaked at 7.22 ft at Apr 13, 2020, 1:00 PM EDT.

Action stage: 5.5 ft
Minor stage: 7 ft
Moderate stage: 8.5 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01480000, 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.

614 
WGUS41 KPHI 131613
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
1213 PM EDT Mon Apr 13 2020

...The National Weather Service in Mount Holly NJ has issued a 
flood warning for the following rivers in Delaware...

  Red Clay Creek At Wooddale 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.

&&

DEC003-132213-
/O.NEW.KPHI.FL.W.0009.200413T1613Z-200414T0201Z/
/RCCD1.1.ER.200413T1536Z.200413T1700Z.200413T2001Z.NO/
1213 PM EDT Mon Apr 13 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Red Clay Creek at Wooddale.
* Until this evening...or until the warning is cancelled.
* At 11:47 AM Monday the stage was 7.1 feet.
* Flood stage is 7.0 feet.
* Minor flooding is occurring.
* Forecast...The river will continue rising to near 7.6 feet. 
  The river will fall below flood stage late this afternoon.
* Impact...At 7.5 feet...Barley Mill Road begins to flood. 
  Brandywine Springs Park floods.
* Flood history...This crest compares to a previous crest of 7.6
  feet on Jun 3 2018.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Red Clay Creek
  Wooddale               7.0    7.07  Mon 12 PM    7.6    Mon 1 PM 
 
&&
 
LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565                                  

$$

Kruzdlo

1 follow-up statement

340 
WGUS81 KPHI 131928
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
328 PM EDT Mon Apr 13 2020

...The Flood Warning is cancelled for the following rivers 
in Delaware...

  Red Clay Creek At Wooddale 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.

&&

DEC003-131958-
/O.CAN.KPHI.FL.W.0009.000000T0000Z-200414T0201Z/
/RCCD1.1.ER.200413T1536Z.200413T1630Z.200413T1800Z.NO/
328 PM EDT Mon Apr 13 2020

The Flood Warning is cancelled for
  The Red Clay Creek at Wooddale.
* At 2:46 PM Monday the stage was 6.6 feet.
* Flood stage is 7.0 feet.
* Fell below flood stage at 2:00 PM Monday.
* Forecast...Additional rain will move across northern New Castle
  county this afternoon. Additional rises are possible.
* Impact...At 7.5 feet...Barley Mill Road begins to flood. 
  Brandywine Springs Park floods.
* Flood history...This crest compares to a previous crest of 6.6 
  feet on Oct 27 2003.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Red Clay Creek
  Wooddale               7.0    6.57  Mon 3 PM     Below Flood Stage 
 
&&
 
LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565
                                      

$$

Kruzdlo

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 13, 3:43 AM EDT	Coastal Flood Statement	PHI	Sussex	17 hr
Apr 13, 5:12 AM EDT	Special Weather Statement	PHI	Kent, New Castle	33 min
Apr 13, 5:41 AM EDT	Special Weather Statement	PHI	New Castle	34 min
Apr 13, 5:44 AM EDT	Special Weather Statement	PHI	Kent, Sussex	31 min
Apr 13, 6:11 AM EDT	Areal Flood Advisory	PHI	New Castle	4 hr
Apr 13, 6:17 AM EDT	Special Weather Statement	PHI	Kent, New Castle	28 min
Apr 13, 6:42 AM EDT	Areal Flood Advisory	PHI	Kent, New Castle	4 hr
Apr 13, 6:48 AM EDT	Areal Flood Advisory	PHI	New Castle	4 hr
Apr 13, 11:25 AM EDT	River Flood Warning	PHI	New Castle	4 hr
Apr 13, 2:41 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	64 min
Apr 13, 3:22 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	38 min
Apr 13, 3:26 PM EDT	Tornado Warning	PHI	Kent	13 min
Apr 13, 3:40 PM EDT	Severe Thunderstorm Warning	PHI	Kent	65 min
Apr 13, 3:45 PM EDT	Tornado Warning	PHI	Kent	15 min

Nearby

River Flood Warnings in Delaware, 2020 Every river flood warning in 2020

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.