Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

June 8, 2021Hunterdon County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 8, 2021, 3:13 PM EDT for Hunterdon County, Somerset County, New Jersey. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 8, 2021, 3:13 PM EDT (19:13 UTC)
Expired
Jun 8, 2021, 3:45 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 19:15 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, 7.2 hours before the alert went out and 155 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
740 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

664 
WWUS81 KPHI 081913
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
313 PM EDT Tue Jun 8 2021

NJZ009-010-012-015-PAZ105-106-081945-
Hunterdon-Somerset-Middlesex-Mercer-Lower Bucks-Upper Bucks-
313 PM EDT Tue Jun 8 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN HUNTERDON...
NORTHWESTERN MERCER...SOMERSET...NORTHWESTERN MIDDLESEX AND NORTHERN
BUCKS COUNTIES...

At 312 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Martinsville to Cloverhill to
Pipersville. Movement was east at 20 mph.

Wind gusts up to 45 mph and half inch hail are possible with these 
storms.

Locations impacted include...
New Brunswick, Somerville, Somerset, Edison, East Brunswick,
Bridgewater, South Brunswick, North Brunswick, Middlesex, Princeton,
Bound Brook, Manville, Quakertown, Byram, Bedminster, Flemington,
Tinicum, Pennington, New Hope and Dublin.

This includes the following highways...
 New Jersey Turnpike between exits 10 and 11.
 Interstate 78 in New Jersey between mile markers 28 and 42.
 Interstate 287 in New Jersey between mile markers 0 and 22.
 Garden State Parkway between mile markers 130 and 134.

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4040 7448 4030 7488 4040 7531 4052 7536
      4057 7497 4066 7466 4066 7452 4065 7451
      4066 7450 4066 7440 4063 7442 4060 7446
      4060 7424
TIME...MOT...LOC 1912Z 272DEG 19KT 4060 7454 4049 7476 4044 7514 

$$

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 1:27 PM EDTAreal Flood AdvisoryPHIWarren3 hr
Jun 8, 1:49 PM EDTSpecial Weather StatementPHIWarren26 min
Jun 8, 1:54 PM EDTAreal Flood AdvisoryPHIMorris, Sussex95 min
Jun 8, 2:19 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer2 hr
Jun 8, 2:29 PM EDTSpecial Weather StatementPHIMorris16 min
Jun 8, 2:48 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset27 min
Jun 8, 3:14 PM EDTAreal Flood AdvisoryPHIMiddlesex, Somerset74 min
Jun 8, 4:12 PM EDTSevere Thunderstorm WarningPHIMonmouth48 min
Jun 8, 4:14 PM EDTSpecial Marine WarningPHI91 min
Jun 8, 4:44 PM EDTSpecial Weather StatementPHISalem31 min
Jun 8, 4:47 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem43 min
Jun 8, 4:54 PM EDTSpecial Marine WarningPHI96 min
Jun 8, 4:56 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Gloucester49 min
Jun 8, 4:58 PM EDTSevere Thunderstorm WarningPHIOcean47 min
Jun 8, 5:30 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem45 min
Jun 8, 5:43 PM EDTSpecial Weather StatementPHIOcean32 min
Jun 8, 6:01 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean44 min
Jun 8, 6:22 PM EDTSpecial Marine WarningPHI83 min
Jun 8, 7:39 PM EDTSpecial Marine WarningPHI66 min
Jun 8, 7:52 PM EDTSpecial Weather StatementPHICape May38 min
Jun 8, 11:54 AM EDTAreal Flood AdvisoryPHIMonroe2 hr
Jun 8, 12:34 PM EDTFlash Flood WarningPHIMonroe2 hr
Jun 8, 12:40 PM EDTSpecial Weather StatementPHIMonroe35 min
Jun 8, 1:09 PM EDTSpecial Weather StatementPHIMonroe21 min
Jun 8, 1:17 PM EDTSpecial Weather StatementPHIChester13 min
Jun 8, 1:18 PM EDTAreal Flood AdvisoryPHIChester, Delaware, Montgomery, Philadelphia3 hr
Jun 8, 1:24 PM EDTSpecial Weather StatementPHIDelaware21 min
Jun 8, 1:35 PM EDTFlash Flood WarningPHIChester, Delaware, Montgomery5 hr
Jun 8, 2:07 PM EDTSpecial Weather StatementPHIBucks23 min
Jun 8, 2:43 PM EDTSpecial Weather StatementPHIMontgomery32 min
Jun 8, 3:15 PM EDTSpecial Weather StatementPHIChester30 min
Jun 8, 3:21 PM EDTFlash Flood WarningPHIChester, Montgomery3 hr
Jun 8, 3:43 PM EDTSpecial Weather StatementPHIChester32 min
Jun 8, 4:20 PM EDTSpecial Weather StatementPHIChester25 min
Jun 8, 4:25 PM EDTRiver Flood WarningPHIChester11 hr
Jun 8, 6:21 PM EDTAreal Flood WarningPHIChester, Delaware15 hr
Jun 8, 7:14 PM EDTRiver Flood WarningPHIChester, Delaware18 hr
Jun 8, 7:43 PM EDTSpecial Weather StatementPHISussex32 min

Nearby

Special Weather Statements in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.