Alert archive / Delaware / Coastal Flood Statements in 2020
Coastal Flood Statement 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this coastal flood statement at Oct 13, 2020, 8:53 PM EDT for Sussex County, Delaware; Ocean County, New Jersey. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Oct 13, 2020, 8:53 PM EDT (00:53 UTC)
- Expired
- Oct 14, 2020, 1:08 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, DE, Ocean County, NJ
The radar
The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 00:57 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.9 hours before the alert went out and 158 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
- 939 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -112 m²/s²
- 0-3 km storm-relative helicity
- -151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
341 WHUS41 KPHI 140053 CFWPHI Coastal Hazard Message National Weather Service Mount Holly NJ 853 PM EDT Tue Oct 13 2020 NJZ020-026-140800- /O.NEW.KPHI.CF.S.0020.201014T0053Z-201014T0800Z/ Ocean-Coastal Ocean- 853 PM EDT Tue Oct 13 2020 ...MINOR FLOODING ALONG BARNEGAT BAY LATE TONIGHT... * WHAT...Up to one half foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Barnegat Bay and the tidal waterways that flow into it. * WHEN...Until 4 AM EDT Wednesday. * IMPACTS...Minor roadway flooding is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ DEZ003-004-140800- /O.NEW.KPHI.CF.S.0020.201014T0053Z-201014T0800Z/ Inland Sussex-Delaware Beaches- 853 PM EDT Tue Oct 13 2020 ...MINOR FLOODING ALONG LITTLE ASSAWOMAN BAY LATE TONIGHT... * WHAT...Up to one half foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Little Assawoman Bay and the tidal waterways that flow into it. * WHEN...Until 4 AM EDT Wednesday. * IMPACTS...Minor roadway flooding is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$
1 follow-up statement
649 WHUS41 KPHI 140508 CFWPHI Coastal Hazard Message National Weather Service Mount Holly NJ 108 AM EDT Wed Oct 14 2020 DEZ003-004-NJZ020-026-140615- /O.CAN.KPHI.CF.S.0020.000000T0000Z-201014T0800Z/ Inland Sussex-Delaware Beaches-Ocean-Coastal Ocean- 108 AM EDT Wed Oct 14 2020 ...COASTAL FLOOD STATEMENT IS CANCELLED... High tide has passed and no additional tidal flooding is expected. Therefore, the coastal flood statement has been cancelled. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 3:16 PM EDT | Small Craft Advisory | PHI | 34 hr |
Nearby
Coastal Flood Statements in Delaware, 2020Coastal Flood Statements in New Jersey, 2020Every coastal flood statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.