Alert archive / New Jersey / Special Weather Statements in 2020
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 3, 2020, 9:02 PM EDT for Morris County, New Jersey. It was in force for 28 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
- Aug 3, 2020, 9:02 PM EDT (01:02 UTC)
- Expired
- Aug 3, 2020, 9:30 PM EDT
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 106 km from the middle of the area, began a volume at 01:04 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 9:11 PM EDT | TSTM WND DMG | Lake Hiawatha, NJ | DOWNED TREES AND WIRES NEAR MINNEHAHA BOULEVARD IN LAKE HIAWATHA. TIME ESTIMATED FROM RADAR. |
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 00:00Z, 1.0 hours before the alert went out and 128 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
- 560 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1172 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted.
797
WWUS81 KPHI 040102
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
902 PM EDT Mon Aug 3 2020
NJZ008-040130-
Morris-
902 PM EDT Mon Aug 3 2020
...A STRONG THUNDERSTORM WILL AFFECT MORRIS COUNTY...
At 902 PM EDT, a strong thunderstorm was located over East Hanover,
or near Morristown, moving northeast at 35 mph.
Wind gusts up to 45 mph are possible with this storm.
Heavy rainfall is also occurring with this storm...and may cause
ponding on roadways and poor drainage areas. Do not drive your
vehicle through flooded roadways.
Occasional cloud to ground lightning is occurring with this storm.
Lightning can strike 15 miles away from a thunderstorm. If you see
lightning or hear thunder seek a safe shelter inside a building or
vehicle.
Locations impacted include...
Morristown, Dover, Madison, Florham Park, East Hanover, Lincoln Park,
Kinnelon, Chatham, Boonton, Butler, Wharton, Rockaway, Morris Plains,
Mount Arlington, Mendham, Mountain Lakes, Riverdale, Victory Gardens,
Green Pond and Succasunna.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 29 and 48.
Interstate 287 in New Jersey between mile markers 32 and 54.
LAT...LON 4091 7433 4083 7433 4079 7437 4076 7438
4075 7436 4069 7443 4086 7470 4104 7450
4105 7445 4102 7443 4103 7442 4100 7430
4097 7428 4092 7429 4090 7427
TIME...MOT...LOC 0102Z 215DEG 29KT 4082 7440
$$
RobertsonThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:07 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset, Warren | 23 min |
| Aug 3, 8:26 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 34 min |
| Aug 4, 5:17 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Salem and 1 more | 4 hr |
| Aug 4, 5:55 AM EDT | Special Marine Warning | PHI | 21 min | |
| Aug 4, 7:28 AM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Aug 4, 8:38 AM EDT | Special Marine Warning | PHI | 52 min | |
| Aug 4, 9:16 AM EDT | Tornado Warning | PHI | Cumberland | 18 min |
| Aug 4, 9:28 AM EDT | Special Marine Warning | PHI | 32 min | |
| Aug 4, 9:31 AM EDT | Special Marine Warning | PHI | 59 min | |
| Aug 4, 9:42 AM EDT | Tornado Warning | PHI | Atlantic, Cape May | 19 min |
| Aug 4, 10:02 AM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 4 hr |
| Aug 4, 10:15 AM EDT | Tornado Warning | PHI | Atlantic, Burlington, Ocean | 14 min |
| Aug 4, 10:20 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Aug 4, 11:00 AM EDT | Tornado Warning | PHI | Monmouth, Ocean | 11 min |
| Aug 4, 11:01 AM EDT | Flash Flood Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more | 4 hr |
| Aug 4, 11:13 AM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 4 hr |
| Aug 4, 11:43 AM EDT | Flash Flood Warning | PHI | Warren | 4 hr |
| Aug 4, 11:59 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Middlesex, Monmouth, Morris, Somerset | 4 hr |
| Aug 4, 2:33 PM EDT | River Flood Warning | PHI | Hunterdon, Somerset | 5 hr |
| Aug 4, 2:47 PM EDT | Areal Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset, Warren | 9 hr |
| Aug 4, 3:42 PM EDT | Areal Flood Warning | PHI | Warren | 4 hr |
| Aug 4, 4:37 PM EDT | Areal Flood Warning | PHI | Cumberland, Salem | 10 hr |
| Aug 4, 5:04 PM EDT | Small Craft Advisory | PHI | 14 hr | |
| Aug 4, 5:30 PM EDT | Coastal Flood Statement | PHI | Ocean | 103 min |
| Aug 4, 7:23 AM EDT | Tornado Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 20 min |
| Aug 4, 8:11 AM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Montgomery, Northampton | 4 hr |
| Aug 4, 8:19 AM EDT | River Flood Warning | PHI | Delaware | 15 hr |
| Aug 4, 8:19 AM EDT | Tornado Warning | PHI | Bucks | 26 min |
| Aug 4, 9:23 AM EDT | Tornado Warning | PHI | Chester | 22 min |
| Aug 4, 9:29 AM EDT | Tornado Warning | PHI | Monroe, Northampton | 31 min |
| Aug 4, 9:38 AM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 4 hr |
| Aug 4, 9:58 AM EDT | Tornado Warning | PHI | Monroe | 16 min |
| Aug 4, 10:51 AM EDT | Tornado Warning | PHI | Montgomery | 24 min |
| Aug 4, 12:06 PM EDT | River Flood Warning | PHI | Chester | 11 hr |
| Aug 4, 12:37 PM EDT | River Flood Warning | PHI | Montgomery | 14 hr |
| Aug 4, 12:48 PM EDT | River Flood Warning | PHI | Chester, Delaware | 24 hr |
| Aug 4, 1:01 PM EDT | River Flood Warning | PHI | Bucks | 18 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Berks | 10 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Montgomery | 26 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 35 hr |
| Aug 4, 1:59 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 9 hr |
| Aug 4, 2:09 PM EDT | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 15 hr |
| Aug 4, 2:23 PM EDT | River Flood Warning | PHI | Lehigh | 16 hr |
| Aug 4, 4:39 PM EDT | River Flood Warning | PHI | Monroe | 6 hr |
| Aug 4, 7:29 PM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 12 hr |
| Aug 4, 4:50 AM EDT | Tornado Warning | PHI | Sussex | 25 min |
| Aug 4, 7:39 AM EDT | Tornado Warning | PHI | Sussex | 36 min |
| Aug 4, 7:51 AM EDT | Tornado Warning | PHI | Sussex | 24 min |
| Aug 4, 8:15 AM EDT | Tornado Warning | PHI | Kent | 45 min |
| Aug 4, 8:18 AM EDT | Tornado Warning | PHI | Sussex | 27 min |
| Aug 4, 8:27 AM EDT | Tornado Warning | PHI | Kent | 33 min |
| Aug 4, 8:56 AM EDT | Tornado Warning | PHI | Kent, New Castle | 34 min |
| Aug 4, 8:58 AM EDT | Flash Flood Warning | PHI | Kent, New Castle, Sussex | 3 hr |
| Aug 4, 9:06 AM EDT | River Flood Warning | PHI | New Castle | 11 hr |
| Aug 4, 9:23 AM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Aug 4, 10:38 AM EDT | River Flood Warning | PHI | New Castle | 14 hr |
| Aug 4, 12:27 PM EDT | River Flood Warning | PHI | New Castle | 10 hr |
| Aug 4, 12:48 PM EDT | River Flood Warning | PHI | New Castle | 24 hr |
| Aug 4, 1:33 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 2:10 AM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 6:55 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 35 min |
| Aug 4, 7:22 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 23 min |
| Aug 4, 7:50 AM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 8:13 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's, Talbot | 26 min |
| Aug 4, 8:50 AM EDT | Flash Flood Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 4 hr |
Nearby
Special Weather Statements in New Jersey, 2020Every special weather 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.