Alert archive / New Jersey / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Oct 16, 2021, 3:41 PM EDT for Hunterdon County, Sussex County, Warren County, New Jersey; Bucks County, Pennsylvania. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 16, 2021, 3:41 PM EDT (19:41 UTC)
- Expired
- Oct 16, 2021, 4:30 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.00 in
- Wind
- 40
Counties Hunterdon County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 112 km from the middle of the area, began a volume at 19:43 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 16, 4:24 PM EDT | TSTM WND DMG | Hopewell, NJ | TREE BLOWN OVER ON PRINCETON RD. TIME ESTIMATED FROM RADAR AND THE SPOTTERS REPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.7 hours before the alert went out and 173 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
- 1068 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
688
WWUS81 KPHI 161941
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
341 PM EDT Sat Oct 16 2021
NJZ001-007>010-015-PAZ103-105-106-162030-
Hunterdon NJ-Morris NJ-Sussex NJ-Somerset NJ-Warren NJ-Mercer NJ-
Lower Bucks PA-Upper Bucks PA-Western Montgomery PA-
341 PM EDT Sat Oct 16 2021
...Strong thunderstorms will impact portions of Hunterdon, western
Morris, Sussex, Warren, northwestern Mercer, western Somerset and
central Bucks Counties through 430 PM EDT...
At 340 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Dingmans Ferry to near Fricks. Movement
was northeast at 50 mph.
HAZARD...Wind gusts up to 45 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Newton, Montague, Lansdale, Hopatcong, Hackettstown, Doylestown,
Byram, Bedminster, Wharton, Washington, Blairstown, Mount Arlington,
Franklin, Mendham, Flemington, Chalfont, Tinicum, High Bridge,
Stanhope and Hatfield.
This includes the following highways...
Interstate 78 in New Jersey between mile markers 3 and 29.
Interstate 80 in New Jersey between mile markers 9 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4125 7446 4031 7478 4026 7522 4027 7525
4026 7526 4025 7532 4085 7507 4086 7505
4113 7495 4118 7488 4124 7486 4129 7483
4135 7475 4136 7469
TIME...MOT...LOC 1940Z 207DEG 42KT 4117 7492 4034 7523
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 10:35 AM EDT | Coastal Flood Statement | PHI | Ocean | 2 hr |
| Oct 16, 3:22 PM EDT | Special Marine Warning | PHI | 113 min | |
| Oct 16, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 18 min |
| Oct 16, 4:02 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 43 min |
| Oct 16, 4:18 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 1 more | 57 min |
| Oct 16, 5:10 PM EDT | Special Marine Warning | PHI | 95 min | |
| Oct 16, 5:29 PM EDT | Special Marine Warning | PHI | 91 min | |
| Oct 16, 6:09 PM EDT | Special Marine Warning | PHI | 66 min | |
| Oct 16, 6:52 PM EDT | Coastal Flood Statement | PHI | Ocean | 4 hr |
| Oct 16, 1:39 PM EDT | Special Weather Statement | PHI | Berks | 51 min |
| Oct 16, 2:32 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 58 min |
| Oct 16, 2:44 PM EDT | Special Weather Statement | PHI | Chester | 61 min |
| Oct 16, 3:40 PM EDT | Special Weather Statement | PHI | New Castle | 50 min |
Nearby
Special Weather Statements in New Jersey, 2021Special Weather Statements in Pennsylvania, 2021Every special weather statement in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.