Alert archive / Maryland / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 79, NWS Philadelphia/Mount Holly

June 2, 2022Sussex County, Delaware; Caroline County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 2, 2022, 5:31 PM EDT for Sussex County, Delaware; Caroline County, Talbot County, Maryland. It was in force for 29 min. 2 reports 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: Jun 2, 2022, 5:31 PM EDT (21:31 UTC)
Expired: Jun 2, 2022, 6:00 PM EDT
In force: 29 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Sussex County, DE, Caroline County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 30 km from the middle of the area, began a volume at 21:34 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
Jun 2, 5:35 PM EDT	TSTM WND DMG	3 Wsw Harmony, MD	MD-578 CLOSED IN BOTH DIRECTIONS AT NEWTON RD DUE TO TREES AND/OR WIRES DOWN. TIME ESTIMATED FROM RADAR.
Jun 2, 5:37 PM EDT	TSTM WND DMG	1 Nw Harmony, MD	PICTURES SENT IN VIA EMAIL. MULTIPLE LARGE TREES DOWNED IN YARD. ONE TREE DOWN ON A CAR. TIME ESTIMATED VIA RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 9.5 hours before the alert went out and 93 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.

879 
WUUS51 KPHI 022131
SVRPHI
DEC005-MDC011-041-022200-
/O.NEW.KPHI.SV.W.0079.220602T2131Z-220602T2200Z/

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

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  West central Sussex County in southern Delaware...
  East central Talbot County in eastern Maryland...
  Southern Caroline County in eastern Maryland...

* Until 600 PM EDT.

* At 531 PM EDT, a severe thunderstorm was located over Harmony, or 9
  miles east of Easton, moving east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Seaford, Laurel, Federalsburg, Bridgeville, Preston, Tanyard,
  Harmony, Smithville, Agner, Matthews, Griffin, Blades and
  Greenwood.

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 3861 7571 3865 7571 3869 7577 3868 7580
      3870 7580 3871 7584 3870 7590 3868 7592
      3871 7601 3888 7594 3885 7573 3883 7572
      3884 7562 3882 7547 3856 7557
TIME...MOT...LOC 2131Z 286DEG 24KT 3878 7589 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 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, 5:58 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
Jun 2, 7:27 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Sussex	18 min
Jun 2, 3:22 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	38 min
Jun 2, 3:54 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	51 min
Jun 2, 3:57 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	20 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2022 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.