Alert archive / Maryland / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 244, NWS Philadelphia/Mount Holly

July 28, 2023Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2023, 8:18 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 42 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: Jul 28, 2023, 8:18 PM EDT (00:18 UTC)
Expired: Jul 28, 2023, 9:00 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 00:17 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
Jul 28, 8:18 PM EDT	TSTM WND GST 50	5 N Rock Hall, MD
Jul 28, 8:26 PM EDT	TSTM WND DMG	Still Pond, MD	Multiple Trees down in Still Pond per 911 call center. Time estimated from radar.

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

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.3 hours before the alert went out and 123 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: 48 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 1638 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

960 
WUUS51 KPHI 290018
SVRPHI
MDC029-035-290100-
/O.NEW.KPHI.SV.W.0244.230729T0018Z-230729T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
818 PM EDT Fri Jul 28 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  North central Queen Anne's County in northeastern Maryland...
  Kent County in northeastern Maryland...

* Until 900 PM EDT.

* At 818 PM EDT, severe thunderstorms were located along a line
  extending from near Aberdeen Proving Ground to near Newtown to near
  Millers Island, moving east-southeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Chestertown, Millington, Betterton, Sassafras, Old Town, Langford,
  Newtown, Morgnec, Massey, Crumpton, Kennedyville, Galena and
  Kingstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3926 7622 3929 7617 3932 7618 3934 7616
      3933 7614 3934 7614 3937 7611 3936 7598
      3937 7595 3936 7588 3938 7582 3938 7577
      3925 7577 3910 7610 3917 7627
TIME...MOT...LOC 0018Z 276DEG 28KT 3945 7609 3933 7622 3924 7637 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AAD

1 follow-up statement

590 
WWUS51 KPHI 290054
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
854 PM EDT Fri Jul 28 2023

MDC029-035-290103-
/O.EXP.KPHI.SV.W.0244.000000T0000Z-230729T0100Z/
Queen Anne's MD-Kent MD-
854 PM EDT Fri Jul 28 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL QUEEN ANNE'S AND
KENT COUNTIES WILL EXPIRE AT 900 PM EDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3926 7622 3929 7617 3932 7618 3934 7616
      3933 7614 3934 7614 3937 7611 3936 7598
      3937 7595 3936 7588 3938 7582 3938 7577
      3925 7577 3910 7610 3917 7627
TIME...MOT...LOC 0053Z 276DEG 28KT 3942 7577 3930 7590 3921 7605 

$$

AAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 9:30 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	45 min
Jul 28, 10:07 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	38 min
Jul 28, 10:44 PM EDT	Severe Thunderstorm Warning	PHI	Kent	31 min
Jul 28, 11:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	60 min
Jul 28, 11:33 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	27 min
Jul 29, 12:12 AM EDT	Severe Thunderstorm Warning	PHI	Caroline	36 min
Jul 29, 5:00 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent, Queen Anne's	60 min
Jul 29, 5:02 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	73 min
Jul 29, 5:44 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's	46 min
Jul 29, 6:00 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline	75 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.