Alert archive / New Jersey / Flood Watches in 2011
Flood Watch 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Aug 6, 2011, 8:49 PM EDT for Morris County, Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Pennsylvania. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Aug 6, 2011, 8:49 PM EDT (00:49 UTC)
- Expired
- Aug 7, 2011, 6:03 AM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 00:53 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, 0.8 hours before the alert went out and 184 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
- 5 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 889 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
797 WGUS61 KPHI 070049 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 849 PM EDT SAT AUG 6 2011 NJZ001-007-008-PAZ054-055-070900- /O.NEW.KPHI.FA.A.0009.110807T0049Z-110807T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SUSSEX-WARREN-MORRIS-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... JIM THORPE...STROUDSBURG 849 PM EDT SAT AUG 6 2011 ...FLOOD WATCH IN EFFECT UNTIL 6 AM EDT SUNDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF NORTHERN NEW JERSEY AND NORTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN NEW JERSEY...MORRIS...SUSSEX AND WARREN. IN NORTHEAST PENNSYLVANIA...CARBON AND MONROE. * UNTIL 6 AM EDT SUNDAY * RAINFALL OF 1 TO 1.2 INCHES HAS ALREADY OCCURRED IN PORTIONS OF THE POCONOS THIS PAST SATURDAY AFTERNOON. ANOTHER BAND OR TWO OF HEAVY SHOWERS AND ISOLATED EMBEDDED THUNDERSTORMS DEVELOPING OVER EASTERN PENNSYLVANIA MAY FOCUS OCCASIONALLY VERY HEAVY RAIN OVER A SMALL PORTION OF THE WATCH AREA OVERNIGHT. IT WOULD TAKE ABOUT 3 INCHES OF RAIN IN 3 HOURS LESS TO CAUSE ISOLATED POCKETS OF FLOODING. * PROBABILISTICALLY...THE CHANCE OF REACHING OR EXCEEDING 3 INCHES OVERNIGHT IN ONE OR 2 COMMUNITIES IN THE WATCH AREA IS LOW TO MODERATE. THIS IS NOT A WATCH FOR WIDESPREAD FLOODING BUT IF ' HEAVY RAINS OCCUR...ISOLATED INSTANCES OF SMALL STREAM AND SIGNIFICANT STREET AND POOR DRAINAGE FLOODING COULD OCCUR BY DAYBREAK SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$ DRAG
2 follow-up statements
175 WGUS61 KPHI 070728 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 328 AM EDT SUN AUG 7 2011 NJZ001-007-008-PAZ054-055-071000- /O.CON.KPHI.FA.A.0009.000000T0000Z-110807T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SUSSEX-WARREN-MORRIS-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... JIM THORPE...STROUDSBURG 328 AM EDT SUN AUG 7 2011 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN NEW JERSEY AND NORTHEAST PENNSYLVANIA... INCLUDING THE FOLLOWING AREAS...IN NORTHERN NEW JERSEY... MORRIS...SUSSEX AND WARREN. IN NORTHEAST PENNSYLVANIA...CARBON AND MONROE. * UNTIL 6 AM EDT EARLY THIS MORNING * THE LAST OF THE HEAVY RAIN IS MOVING THROUGH THE WATCH AREA EARLY THIS MORNING. AFTER THE RAIN ENDS...RUNOFF WILL CONTINUE. THIS COULD RESULT IN SOME CREEKS AND STREAMS REACHING NEAR BANKFULL THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
242 WGUS61 KPHI 071003 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 603 AM EDT SUN AUG 7 2011 ...FLASHING FLOODING IS POSSIBLE TODAY INTO THIS EVENING... .SCATERED SHOWERS AND THUNDERSTORMS DEVELOPING AHEAD OF A COLD FRONT MAY PRODUCE HEAVY RAINFALL TODAY AND EARLY THIS EVENING. PORTIONS OF THE LEHIGH VALLEY...SOUTHERN POCONOS AND NORTHWEST NEW JERSEY RECEIVED BETWEEN TWO AND ONE-HALF AND SIX AND ONE-HALF INCHES OF RAIN SATURDAY AFTERNOON INTO EARLY THIS MORNING. ADDITIONAL RAIN WITH SHOWERS AND THUNDERSTORMS COULD PRODUCE FLASH FLOODING IN THESE AREAS. NJZ001-007-PAZ054-055-072030- /O.CAN.KPHI.FA.A.0009.000000T0000Z-110807T1000Z/ /O.NEW.KPHI.FF.A.0005.110807T1400Z-110808T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SUSSEX-WARREN-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...JIM THORPE... STROUDSBURG 603 AM EDT SUN AUG 7 2011 ...FLASH FLOOD WATCH IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... ...FLOOD WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN NEW JERSEY AND NORTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN NEW JERSEY...SUSSEX AND WARREN. IN NORTHEAST PENNSYLVANIA...CARBON AND MONROE. * FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING * THE WATCH AREA RECEIVED BETWEEN ONE AND ONE-HALF AND THREE INCHES OF RAIN SATURDAY AFTERNOON INTO EARLY THIS MORNING. SCATTERED SHOWERS AND THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE HEAVY RAIN LATER THIS MORNING INTO EARLY THIS EVENING. * ADDITIONAL RAINFALL IN THESE AREAS COULD PRODUCE FLASH FLOODING. THE BEST CHANCE OF SHOWERS AND THUNDERSTORMS WILL BE THIS AFTERNOON AND THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && THE FLOOD WATCH FOR PORTIONS OF NORTHERN NEW JERSEY AND NORTHEAST PENNSYLVANIA HAS BEEN CANCELLED. THE HEAVIEST RAIN HAS MOVED OUT OF THE AREA. THERE IS POTENTIAL FOR MORE FLOODING LATER TODAY AND THIS EVENING. $$ NJZ008-071115- /O.CAN.KPHI.FA.A.0009.000000T0000Z-110807T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MORRIS- INCLUDING THE CITY OF...MORRISTOWN 603 AM EDT SUN AUG 7 2011 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR A PORTION OF NORTHERN NEW JERSEY HAS BEEN CANCELLED. THE HEAVIEST RAIN HAS MOVED OUT OF THE AREA...AND THE THREAT FOR FLOODING HAS DIMINISHED. $$ PAZ060>062-072030- /O.NEW.KPHI.FF.A.0005.110807T1400Z-110808T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...READING...ALLENTOWN...BETHLEHEM... EASTON 603 AM EDT SUN AUG 7 2011 ...FLASH FLOOD WATCH IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR A PORTION OF EAST CENTRAL PENNSYLVANIA... INCLUDING THE FOLLOWING AREAS...BERKS...LEHIGH AND NORTHAMPTON. * FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING * THE WATCH AREA RECEIVED BETWEEN TWO AND ONE-HALF AND SIX AND ONE-HALF INCHES OF RAIN SATURDAY AFTERNOON INTO EARLY THIS MORNING. SCATTERED SHOWERS AND THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE HEAVY RAIN LATER THIS MORNING INTO EARLY THIS EVENING. * ADDITIONAL RAINFALL IN THESE AREAS COULD PRODUCE FLASH FLOODING. THE BEST CHANCE OF SHOWERS AND THUNDERSTORMS WILL BE THIS AFTERNOON AND THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 10:33 PM EDT | Areal Flood Advisory | PHI | Warren | 6 hr |
| Aug 7, 12:42 AM EDT | Special Weather Statement | PHI | Morris | 63 min |
| Aug 7, 1:32 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Warren | 3 hr |
| Aug 7, 1:54 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 3 hr |
| Aug 7, 3:56 AM EDT | Special Weather Statement | PHI | Hunterdon | 64 min |
| Aug 7, 4:45 AM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 60 min |
| Aug 7, 5:10 AM EDT | Areal Flood Advisory | PHI | Morris, Somerset | 81 min |
| Aug 7, 5:30 AM EDT | Special Weather Statement | PHI | Mercer, Middlesex | 60 min |
| Aug 7, 6:03 AM EDT | Flash Flood Watch | PHI | Sussex, Warren | 14 hr |
| Aug 7, 3:25 PM EDT | Special Weather Statement | PHI | Mercer | 35 min |
| Aug 7, 3:34 PM EDT | Special Weather Statement | PHI | Warren | 26 min |
| Aug 7, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 27 min |
| Aug 7, 4:19 PM EDT | Special Weather Statement | PHI | Monmouth | 41 min |
| Aug 7, 5:02 PM EDT | Special Weather Statement | PHI | Sussex | 28 min |
| Aug 7, 6:49 PM EDT | Special Weather Statement | PHI | Sussex | 41 min |
| Aug 7, 7:11 PM EDT | Special Weather Statement | PHI | Sussex | 49 min |
| Aug 7, 7:35 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| Aug 6, 10:06 PM EDT | Special Weather Statement | PHI | Berks | 84 min |
| Aug 6, 10:14 PM EDT | Special Weather Statement | PHI | Pike | 61 min |
| Aug 7, 12:48 AM EDT | Special Weather Statement | PHI | Montgomery | 57 min |
| Aug 7, 2:29 AM EDT | Flash Flood Warning | PHI | Berks, Lehigh, Northampton | 3 hr |
| Aug 7, 3:07 PM EDT | Special Weather Statement | PHI | Philadelphia | 23 min |
| Aug 7, 7:20 PM EDT | Special Weather Statement | PHI | Monroe | 40 min |
Nearby
Flood Watches in New Jersey, 2011Flood Watches in Pennsylvania, 2011Every flood watch 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.