Alert archive / New Jersey / Areal Flood Warnings in 2011
Areal Flood Warning 49, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Aug 22, 2011, 3:01 AM EDT for Monmouth County, New Jersey. It was in force for 16 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2011, 3:01 AM EDT (07:01 UTC)
- Expired
- Aug 22, 2011, 6:38 PM EDT
- In force
- 16 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 35 km from the middle of the area, began a volume at 07:04 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 7.0 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1559 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
902 WGUS41 KPHI 220701 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 301 AM EDT MON AUG 22 2011 NJC025-221100- /O.NEW.KPHI.FA.W.0049.110822T0701Z-110822T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 301 AM EDT MON AUG 22 2011 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLOOD WARNING FOR... SOUTH CENTRAL MONMOUTH COUNTY IN CENTRAL NEW JERSEY... * UNTIL 700 AM EDT * AT 300 AM EDT...THE RIVER GAGE LEVEL ON SQUANKUM RIVER IN MANASQUAN WAS 8.1 FEET. FLOOD STAGE IS 7.5 FEET. MINOR FLOODING IS EXPECTED THIS MORNING. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED. HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY. LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ HAYES
7 follow-up statements
173 WGUS81 KPHI 220827 FLSPHI FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 427 AM EDT MON AUG 22 2011 NJC025-221100- /O.CON.KPHI.FA.W.0049.000000T0000Z-110822T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 427 AM EDT MON AUG 22 2011 ...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM EDT FOR SOUTH CENTRAL MONMOUTH COUNTY... AT 425 AM EDT...THE RIVER GAGE LEVEL ON THE SQUANKUM RIVER IN MANASQUAN WAS 9.0 FEET. FLOOD STAGE IS 7.5 FEET. WHEN THE RIVER LEVEL REACHES 9.0 FEET...MODERATE FLOODING WILL OCCUR AND MODERATE FLOODING IS EXPECTED THIS MORNING. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED. HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ HAYES
301 WGUS41 KPHI 220930 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 530 AM EDT MON AUG 22 2011 NJC025-221500- /O.EXT.KPHI.FA.W.0049.000000T0000Z-110822T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 530 AM EDT MON AUG 22 2011 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE * FLOOD WARNING FOR... SOUTH CENTRAL MONMOUTH COUNTY IN CENTRAL NEW JERSEY... * UNTIL 1100 AM EDT * AT 528 AM EDT...THE RIVER GAGE LEVEL ON THE SQUANKUM RIVER IN MANASQUAN WAS 9.3 FEET. FLOOD STAGE IS 7.5 FEET. WHEN THE RIVER LEVEL REACHES 9.0 FEET...MODERATE FLOODING OCCURS AND MODERATE FLOODING IS EXPECTED THIS MORNING. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED. HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ HAYES
871 WGUS41 KPHI 221257 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 857 AM EDT MON AUG 22 2011 NJC025-230100- /O.EXT.KPHI.FA.W.0049.000000T0000Z-110823T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 857 AM EDT MON AUG 22 2011 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE * FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN... SOUTH CENTRAL MONMOUTH COUNTY IN CENTRAL NEW JERSEY... * UNTIL 900 PM EDT TODAY * AT 850 AM EDT THE SQUANKUM RIVER AT MANASQUAN WAS IN MODERATE FLOOD WITH A STAGE READING OF 9.43 FEET BUT SHOWING SIGNS OF NEARING A CREST...POSSIBLY AROUND 9.5 OR 9.6 FEET. FLOOD STAGE IS 7.5 FEET. MODERATE FLOODING WILL CONTINUE THIS MORNING AND THEN THE RIVER SHOULD BEGIN A RECESSION THIS AFTERNOON AND PROBABLY DROP BELOW FLOOD STAGE SOMETIME THIS EVENING. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. ANY FURTHER STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED. HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY AVOIDANCE PRECAUTIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. A FLOOD WARNING MEANS FLOODING IS OCCURRING. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ DRAG
109 WGUS81 KPHI 221435 FLSPHI FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1035 AM EDT MON AUG 22 2011 NJC025-230100- /O.CON.KPHI.FA.W.0049.000000T0000Z-110823T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 1035 AM EDT MON AUG 22 2011 ...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY FOR URBAN AREAS AND SMALL STREAMS IN SOUTH CENTRAL MONMOUTH COUNTY... AT 1022 AM EDT THE SQUANKUM RIVER AT MANASQUAN WAS IN MODERATE FLOOD WITH A STAGE READING OF 9.94 FEET. THE RIVER HAS RECENTLY ACCELERATED ITS RATE OF RISE AS THE RIVER RESPONDS TO INCOMING HIGH TIDE. HIGH TIDE IS AROUND 2 PM THIS AFTERNOON. THE SQUANKUM MAY CREST CLOSE TO 11 FEET DURING MIDDAY WHICH IS THE THRESHOLD FOR MAJOR FLOOD. FLOOD STAGE IS 7.5 FEET. TODAYS FLOODING IS SIGNIFICANTLY WORSE THAN THAT OF THE 15TH...THE RIVER ALREADY RUNNING ABOUT 2.5 FEET HIGHER THAN LAST WEEK. THE FLOOD OF RECORD HERE IS A 12.45 STAGE SET ON SEPTEMBER 21 1938. MODERATE FLOODING WILL CONTINUE INTO EARLY THIS AFTERNOON. THE RIVER SHOULD BEGIN A RECESSION DURING MID AFTERNOON AND PROBABLY DROP BELOW FLOOD STAGE SOMETIME THIS EVENING. A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING. ALL INTERESTED PARTIES SHOULD TAKE NECESSARY AVOIDANCE PRECAUTIONS IMMEDIATELY AND FOLLOW THE ADVICE OF LOCAL OFFICIALS. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ DRAG
545 WGUS81 KPHI 221650 FLSPHI FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1250 PM EDT MON AUG 22 2011 NJC025-230100- /O.CON.KPHI.FA.W.0049.000000T0000Z-110823T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 1250 PM EDT MON AUG 22 2011 ...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR URBAN AREAS AND SMALL STREAMS IN SOUTH CENTRAL MONMOUTH COUNTY... AT 1215 PM EDT THE SQUANKUM RIVER AT MANASQUAN WAS STILL IN MODERATE FLOOD WITH A STAGE READING OF 9.3 FEET...BUT IT WAS FALLING STEADILY! THE RIVER APPARENTLY CRESTED AT 9.94 FEET AROUND 1015 AM. MODERATE FLOODING MAY END AROUND 130 PM IF THE RIVER CONTINUES FALLING AT ITS CURRENT RATE. THE RECESSION TRENDS INDICATE THE SQUANKUM RIVER SHOULD FALL BELOW FLOOD STAGE BETWEEN 630 PM AND 9 PM THIS EVENING. A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING. ALL INTERESTED PARTIES SHOULD CONTINUE TO TAKE NECESSARY AVOIDANCE PRECAUTIONS AND FOLLOW THE ADVICE OF LOCAL OFFICIALS. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ DRAG
233 WGUS81 KPHI 221801 FLSPHI FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 201 PM EDT MON AUG 22 2011 NJC025-230100- /O.CON.KPHI.FA.W.0049.000000T0000Z-110823T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 201 PM EDT MON AUG 22 2011 ...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR URBAN AREAS AND SMALL STREAMS IN SOUTH CENTRAL MONMOUTH COUNTY... AT 130 PM EDT...THE SQUANKUM RIVER AT MANASQUAN WAS AT MINOR FLOOD STAGE WITH A READING OF 8.86 FEET. IT DROPPED BELOW THE MODERATE FLOOD STAGE OF 9.00 FEET AROUND 1 PM. THE RIVER CRESTED EARLIER WITH A STAGE OF 9.94 FEET AROUND 1015 AM. THE RIVER STAGE SHOULD CONTINUE TO RECEDE THIS AFTERNOON AND EVENING. IT IS EXPECTED TO DROP BELOW THE FLOOD STAGE OF 7.5 FEET BETWEEN 6 PM AND 8 PM THIS EVENING. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED. HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ PO
864 WGUS81 KPHI 222238 FLSPHI FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 638 PM EDT MON AUG 22 2011 NJC025-222245- /O.CAN.KPHI.FA.W.0049.000000T0000Z-110823T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONMOUTH NJ- 638 PM EDT MON AUG 22 2011 ...THE FLOOD WARNING HAS BEEN CANCELLED FOR URBAN AREAS AND SMALL STREAMS IN SOUTH CENTRAL MONMOUTH COUNTY... THE LATEST READING FROM THE SQUANKUM RIVER AT MANASQUAN WAS 7.32 FEET AT 615 PM. THE RIVER IS NOW BELOW ITS 7.5 FOOT FLOOD STAGE. THE RIVER STAGE IS EXPECTED TO CONTINUE TO FALL TONIGHT AND TUESDAY. THE WATER IS STILL RUNNING HIGH...SO CONTINUE TO USE CAUTION NEAR THE RIVER. LAT...LON 4026 7412 4015 7409 4011 7421 4018 7426 $$ PO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 8:02 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth | 58 min |
| Aug 21, 9:31 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more | 119 min |
| Aug 21, 9:38 PM EDT | Special Marine Warning | PHI | 50 min | |
| Aug 21, 9:57 PM EDT | Special Marine Warning | PHI | 46 min |
Nearby
Areal Flood Warnings in New Jersey, 2011Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.