Alert archive / New Jersey / Flash Flood Watches in 2018
Flash Flood Watch 17, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Oct 26, 2018, 2:59 PM EDT for 6 counties in New Jersey. It took effect at Oct 27, 2018, 2:00 AM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Oct 26, 2018, 2:59 PM EDT (18:59 UTC)
- In effect from
- Oct 27, 2018, 2:00 AM EDT
- Expired
- Oct 27, 2018, 6:19 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 14 km from the middle of the area, began a volume at 18:59 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 12:00Z, 7.0 hours before the alert went out and 179 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1035 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
494 WGUS61 KPHI 261859 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 259 PM EDT Fri Oct 26 2018 NJZ012>014-020-022>027-271000- /O.NEW.KPHI.FF.A.0017.181027T0600Z-181027T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Atlantic- Cape May-Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of New Brunswick, Freehold, Sandy Hook, Jackson, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, and Wharton State Forest 259 PM EDT Fri Oct 26 2018 ...FLASH FLOOD WATCH IN EFFECT FROM 2 AM EDT SATURDAY THROUGH SATURDAY AFTERNOON... The National Weather Service in Mount Holly has issued a * Flash Flood Watch for portions of the New Jersey shore and Middlesex County. * From 2 AM EDT Saturday through Saturday afternoon * Two to three inches of rain with locally higher amounts are expected late tonight into Saturday morning, associated with the coastal storm which will be affecting the region. * Leaf clogged drains and coastal flooding could further exacerbate flooding issues. If the axis of heaviest rainfall develops further inland, urban areas of Middlesex and Monmouth Counties in particular could see quick rises on small streams and roadway flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that there is the potential for flash flooding which can be life-threatening. Heavy rain is expected to occur over a short period of time. Rapidly rising flood waters may quickly inundate roadways and areas of poor drainage. Streams and creeks could leave their banks, flooding nearby properties. Please monitor the forecast, especially if you live in a location that is prone to flooding. Be prepared to take action if a flash flood warning is issued for your area. && $$ Johnson
2 follow-up statements
091 WGUS61 KPHI 270716 FFAPHI Flood Watch National Weather Service Mount Holly NJ 316 AM EDT Sat Oct 27 2018 NJZ012>014-020-022>027-271800- /O.CON.KPHI.FF.A.0017.000000T0000Z-181027T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Atlantic- Cape May-Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of New Brunswick, Freehold, Sandy Hook, Jackson, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, and Wharton State Forest 316 AM EDT Sat Oct 27 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of the New Jersey shore and Middlesex County. * Until 2 PM EDT this afternoon * Two to three inches of rain with locally higher amounts will fall through this morning. * Leaf clogged drains and coastal flooding could further exacerbate flooding issues. If the axis of heaviest rainfall develops further inland, urban areas of Middlesex and Monmouth Counties in particular could see quick rises on small streams and roadway flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that there is the potential for flash flooding which can be life-threatening. Heavy rain is expected to occur over a short period of time. Rapidly rising flood waters may quickly inundate roadways and areas of poor drainage. Streams and creeks could leave their banks, flooding nearby properties. Please monitor the forecast, especially if you live in a location that is prone to flooding. Be prepared to take action if a flash flood warning is issued for your area. && $$ MPS
387 WGUS61 KPHI 271019 FFAPHI Flood Watch National Weather Service Mount Holly NJ 619 AM EDT Sat Oct 27 2018 NJZ012>014-020-022>027-271130- /O.CAN.KPHI.FF.A.0017.000000T0000Z-181027T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Atlantic- Cape May-Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of New Brunswick, Freehold, Sandy Hook, Jackson, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, and Wharton State Forest 619 AM EDT Sat Oct 27 2018 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central New Jersey, northern New Jersey, and southern New Jersey has been cancelled. Rain continues through the day, but rain will not be widespread or heavy enough to lead to flash flooding. People in coastal areas should remain vigilent, as coastal flooding, possibly significant in some areas, will still occur around high tide this morning. $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 3:30 AM EDT | Gale Warning | PHI | 25 hr | |
| Oct 26, 3:30 AM EDT | Storm Watch | PHI | 9 hr | |
| Oct 26, 3:34 AM EDT | Coastal Flood Warning | PHI | Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean | 35 hr |
| Oct 26, 12:24 PM EDT | High Wind Warning | PHI | Monmouth, Ocean | 24 hr |
| Oct 26, 12:25 PM EDT | Storm Warning | PHI | 26 hr | |
| Oct 26, 3:20 PM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Mercer, Salem | 27 hr |
Nearby
Flash Flood Watches in New Jersey, 2018Every flash flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.