Alert archive / Maryland / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 22, NWS Philadelphia/Mount Holly

April 6, 2023Kent County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 6, 2023, 6:47 PM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 28 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: Apr 6, 2023, 6:47 PM EDT (22:47 UTC)
Expired: Apr 6, 2023, 7:15 PM EDT
In force: 28 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 22:48 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
Apr 6, 7:00 PM EDT	TSTM WND GST 69	3 S Grasonville, MD	MESONET STATION EW5728 GRASONVILLE.
Apr 6, 7:08 PM EDT	TSTM WND DMG	2 Se Centreville, MD	15 POWERLINE POLES DOWN ALONG ROUTE 304, BETWEEN HIGHWAY 301 AND HAYMAKER DRIVE.

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
Apr 6, 2:58 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.8 hours before the alert went out and 100 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1555 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

157 
WUUS51 KPHI 062247
SVRPHI
MDC029-035-041-062315-
/O.NEW.KPHI.SV.W.0022.230406T2247Z-230406T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
647 PM EDT Thu Apr 6 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Talbot County in eastern Maryland...
  Southwestern Queen Anne's County in northeastern Maryland...
  Southwestern Kent County in northeastern Maryland...

* Until 715 PM EDT.

* At 646 PM EDT, a severe thunderstorm was located over Romancoke, or
  11 miles east of South River, moving northeast at 40 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...
  Centerville, Talbot, Centreville, Romancoke, Grasonville, Starr,
  Chester, Overton, Wye Mills, Carville, Hope, Starkey Corner,
  Queenstown and Stevensville South.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 3894 7636 3899 7628 3900 7617 3901 7621
      3902 7623 3903 7624 3916 7604 3898 7593
      3883 7619 3894 7621 3897 7625 3892 7625
      3894 7628 3891 7630 3896 7631 3885 7633
      3882 7623 3877 7631 3883 7630 3886 7637
TIME...MOT...LOC 2246Z 229DEG 35KT 3888 7628 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

1 follow-up statement

488 
WWUS51 KPHI 062257
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
657 PM EDT Thu Apr 6 2023

MDC029-035-041-062315-
/O.CON.KPHI.SV.W.0022.000000T0000Z-230406T2315Z/
Talbot MD-Queen Anne's MD-Kent MD-
657 PM EDT Thu Apr 6 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTH CENTRAL TALBOT...CENTRAL QUEEN ANNE'S AND SOUTHWESTERN KENT
COUNTIES...

At 657 PM EDT, a severe thunderstorm was located near Wye Mills, or
near Centerville, moving northeast at 45 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...
Centerville, Centreville, Overton, Wye Mills, Grasonville, Starr,
Carville, Hope, Starkey Corner and Queenstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 3899 7628 3900 7617 3901 7621 3902 7623
      3903 7624 3916 7604 3898 7593 3883 7619
      3894 7621 3897 7625
TIME...MOT...LOC 2257Z 230DEG 38KT 3896 7614 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 6:24 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	31 min
Apr 6, 7:09 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	26 min
Apr 6, 7:39 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	36 min
Apr 6, 7:50 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	40 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2023 Every severe thunderstorm warning in 2023

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.