Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

June 19, 2021Hunterdon County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 19, 2021, 3:54 AM EDT for Hunterdon County, New Jersey. It was in force for 36 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 19, 2021, 3:54 AM EDT (07:54 UTC)
Expired
Jun 19, 2021, 4:30 AM EDT
In force
36 min
Issued by
NWS Philadelphia/Mount Holly

County Hunterdon County, NJ

The radar

The Philadelphia radar (KDIX), 83 km from the middle of the area, began a volume at 07:57 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

Brookhaven, NY (KOKX), launched 00:00Z, 7.9 hours before the alert went out and 177 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 00:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1656 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

757 
WWUS81 KPHI 190754
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
354 AM EDT Sat Jun 19 2021

NJZ007-009-PAZ105-190830-
Hunterdon-Warren-Upper Bucks-
354 AM EDT Sat Jun 19 2021

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL HUNTERDON...SOUTHWESTERN
WARREN AND NORTH CENTRAL BUCKS COUNTIES...

At 354 AM EDT, a strong thunderstorm was located near Bloomsbury, or
near Easton, moving east at 40 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Flemington, Clinton, Alpha, Frenchtown, Lebanon, Milford, Bloomsbury,
Riegelsville, Annandale, White House Station, Sand Brook and
Phillipsburg.

This includes Interstate 78 in New Jersey between mile markers 0 and
19.
 
If outdoors, consider seeking shelter inside a building.

LAT...LON 4060 7472 4059 7472 4051 7477 4051 7480
      4048 7478 4040 7483 4059 7524 4062 7519
      4065 7520 4068 7517 4069 7519 4062 7470
TIME...MOT...LOC 0754Z 291DEG 37KT 4062 7512 

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 5:17 PM EDTSpecial Weather StatementPHIOcean28 min
Jun 19, 5:40 PM EDTSpecial Weather StatementPHIOcean35 min
Jun 19, 5:46 PM EDTSpecial Marine WarningPHI32 min
Jun 19, 5:59 PM EDTAreal Flood AdvisoryPHIMorris, Sussex2 hr

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.