Alert archive / Pennsylvania / River Flood Warnings in 2011

River Flood Warning 211, NWS Philadelphia/Mount Holly

November 23, 2011Montgomery County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Nov 23, 2011, 10:26 AM EST for Montgomery County, Philadelphia County, Pennsylvania. It took effect at Nov 23, 2011, 1:00 PM EST. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Nov 23, 2011, 10:26 AM EST (15:26 UTC)
In effect from: Nov 23, 2011, 1:00 PM EST
Expired: Nov 23, 2011, 3:16 PM EST
In force: 2 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Minor

Counties Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 15:26 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 Schuylkill River at Philadelphia (PADP1). The gauge peaked at 10.75 ft at Nov 23, 2011, 2:00 PM EST.

Action stage: 10 ft
Minor stage: 11 ft
Moderate stage: 13 ft
Major stage: 15.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01474500, 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, in the capitals the NWS used until 2016.

654 
WGUS41 KPHI 231526
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1026 AM EST WED NOV 23 2011

...THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING RIVERS IN PENNSYLVANIA... 

  SCHUYLKILL RIVER AT PHILADELPHIA AFFECTING PHILADELPHIA AND MONTGOMERY
  COUNTIES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC091-101-232126-
/O.NEW.KPHI.FL.W.0211.111123T1800Z-111124T0000Z/
/PADP1.1.ER.111123T1800Z.111123T1800Z.111123T1800Z.NO/
1026 AM EST WED NOV 23 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE SCHUYLKILL RIVER AT PHILADELPHIA.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:01 AM WEDNESDAY THE STAGE WAS 10.4 FEET. 
* FLOOD STAGE IS 11.0 FEET. 
* MINOR FLOODING IS FORECAST. 
* FORECAST...THE RIVER IS EXPECTED TO RISE TO NEAR FLOOD STAGE THIS 
  AFTERNOON.
* IMPACT...AT 11.0 FEET...KELLY DRIVE IS FLOODED AND CLOSED BETWEEN 
  HUNTING PARK AVENUE AND FALLS BRIDGE. THE FLAT ROCK AREA IS FLOODED.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  PHILADELPHIA     11.0   10.35  WED 10 AM   11.0    WED 1 PM 

&&

2 follow-up statements

164 
WGUS81 KPHI 231659
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1159 AM EST WED NOV 23 2011

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  SCHUYLKILL RIVER AT NORRISTOWN AFFECTING CHESTER...MONTGOMERY AND 
  PHILADELPHIA COUNTIES 
  SCHUYLKILL RIVER AT PHILADELPHIA AFFECTING PHILADELPHIA AND 
  MONTGOMERY COUNTIES 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC029-091-101-240259-
/O.EXT.KPHI.FL.W.0205.000000T0000Z-111124T1000Z/
/NRSP1.1.ER.111123T1022Z.111123T1800Z.111124T0400Z.NO/
1159 AM EST WED NOV 23 2011

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT NORRISTOWN.
* AT 11:30 AM WEDNESDAY THE STAGE WAS 14.1 FEET. 
* FLOOD STAGE IS 13.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 14.5 FEET BY THIS 
  AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE TONIGHT.
* IMPACT...AT 15.0 FEET...RIVER ROAD IN WEST CONSHOHOCKEN BEGINS TO 
  FLOOD. THE LOWER GARAGES AT THE RIVERVIEW LANDING AND THE LOFTS AT 
  VALLEY FORGE START TO TAKE ON WATER. THE LOWER SECTION OF PORT INDIAN 
  ROAD IN WEST NORRITON BECOMES IMPASSABLE.

$$

PAC091-101-240000-
/O.CON.KPHI.FL.W.0211.111123T1800Z-111124T0000Z/
/PADP1.1.ER.111123T1800Z.111123T1800Z.111123T1800Z.NO/
1159 AM EST WED NOV 23 2011

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT PHILADELPHIA.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 11:30 AM WEDNESDAY THE STAGE WAS 10.6 FEET. 
* FLOOD STAGE IS 11.0 FEET. 
* FORECAST...THE RIVER IS EXPECTED TO RISE TO NEAR FLOOD STAGE THIS 
  AFTERNOON.
* IMPACT...AT 11.0 FEET...KELLY DRIVE IS FLOODED AND CLOSED BETWEEN 
  HUNTING PARK AVENUE AND FALLS BRIDGE. THE FLAT ROCK AREA IS FLOODED.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  NORRISTOWN       13.0   14.15  WED 11 AM   14.5    WED 1 PM 
  PHILADELPHIA     11.0   10.60  WED 11 AM   11.0    WED 1 PM 

&&

660 
WGUS81 KPHI 232016
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
316 PM EST WED NOV 23 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  SCHUYLKILL RIVER AT PHILADELPHIA AFFECTING PHILADELPHIA AND 
  MONTGOMERY COUNTIES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC091-101-232046-
/O.CAN.KPHI.FL.W.0211.000000T0000Z-111124T0000Z/
/PADP1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
316 PM EST WED NOV 23 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE SCHUYLKILL RIVER AT PHILADELPHIA.
* AT 3:00 PM WEDNESDAY THE STAGE WAS 10.7 FEET. 
* FLOOD STAGE IS 11.0 FEET. 
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 10.8 FEET.  
* IMPACT...AT 11.0 FEET...KELLY DRIVE IS FLOODED AND CLOSED BETWEEN 
  HUNTING PARK AVENUE AND FALLS BRIDGE. THE FLAT ROCK AREA IS FLOODED.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  PHILADELPHIA     11.0   10.73  WED 3 PM     CRESTED AND FALLING 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 22, 9:32 PM EST	Coastal Flood Advisory	PHI	Delaware, Philadelphia	15 hr
Nov 22, 9:56 PM EST	Areal Flood Warning	PHI	Berks, Chester, Montgomery	6 hr
Nov 23, 12:35 AM EST	Areal Flood Advisory	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	6 hr
Nov 23, 1:17 AM EST	Areal Flood Advisory	PHI	Carbon, Lehigh, Monroe, Northampton	6 hr
Nov 23, 2:39 AM EST	River Flood Warning	PHI	Bucks	9 hr
Nov 23, 3:08 AM EST	Special Weather Statement	PHI	Bucks, Chester, Delaware, Monroe, Montgomery, Northampton and 1 more	3 hr
Nov 23, 3:39 AM EST	River Flood Warning	PHI	Montgomery	11 hr
Nov 23, 3:44 AM EST	Areal Flood Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Monroe and 3 more	8 hr
Nov 23, 5:13 AM EST	Areal Flood Advisory	PHI	Philadelphia	3 hr
Nov 23, 5:54 AM EST	River Flood Warning	PHI	Chester, Montgomery, Philadelphia	16 hr
Nov 23, 6:34 AM EST	River Flood Warning	PHI	Chester	7 hr
Nov 23, 6:57 AM EST	River Flood Warning	PHI	Chester, Delaware	16 hr
Nov 23, 9:45 AM EST	Special Weather Statement	PHI	Berks	60 min
Nov 23, 11:50 AM EST	Areal Flood Warning	PHI	Berks, Chester, Montgomery	4 hr

Nearby

River Flood Warnings in Pennsylvania, 2011 Every river flood warning in 2011

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.