Alert archive / Delaware / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 83, NWS Philadelphia/Mount Holly

June 2, 2022Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 2, 2022, 7:27 PM EDT for Sussex County, Delaware. It was in force for 18 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 2, 2022, 7:27 PM EDT (23:27 UTC)
Expired: Jun 2, 2022, 7:45 PM EDT
In force: 18 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 50 km from the middle of the area, began a volume at 23:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 2, 1:53 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.5 hours before the alert went out and 74 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 891 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1167 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

535 
WUUS51 KPHI 022327
SVRPHI
DEC005-022345-
/O.NEW.KPHI.SV.W.0083.220602T2327Z-220602T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
727 PM EDT Thu Jun 2 2022

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southeastern Sussex County in southern Delaware...

* Until 745 PM EDT.

* At 727 PM EDT, a severe thunderstorm was located near Millville, or
  17 miles north of Ocean City, moving east at 40 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Selbyville, Millville, Henlopen Acres, Long Neck, Ocean View,
  Frankford, South Bethany and Dewey Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3845 7503 3846 7505 3845 7505 3845 7523
      3873 7523 3876 7486 3847 7483 3845 7483
TIME...MOT...LOC 2327Z 264DEG 36KT 3861 7506 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Fitzsimmons

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 8:44 PM EDT	Dense Fog Advisory	PHI	Sussex	9 hr
Jun 2, 3:07 PM EDT	Flood Watch	PHI	New Castle	5 hr
Jun 2, 5:31 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	29 min
Jun 2, 5:58 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	47 min
Jun 2, 6:10 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min
Jun 2, 6:44 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	46 min

Nearby

Severe Thunderstorm Warnings in Delaware, 2022 Every severe thunderstorm warning in 2022

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.