Alert archive / Maryland / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 169, NWS Philadelphia/Mount Holly

September 25, 2022Kent County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 25, 2022, 4:55 PM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 35 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
Sep 25, 2022, 4:55 PM EDT (20:55 UTC)
Expired
Sep 25, 2022, 5:30 PM EDT
In force
35 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, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 20:58 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.9 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2022-09-25Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2022-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897Sfc1 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
1302 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

021 
WUUS51 KPHI 252055
SVRPHI
MDC029-035-041-252130-
/O.NEW.KPHI.SV.W.0169.220925T2055Z-220925T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
455 PM EDT Sun Sep 25 2022

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 530 PM EDT.

* At 455 PM EDT, a severe thunderstorm was located over South River,
  moving east at 40 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Easton, Talbot, St. Michaels, Chester, Grasonville, Copperville,
  Queenstown and Stevensville South.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

&&

LAT...LON 3899 7633 3897 7622 3900 7617 3902 7620
      3903 7612 3891 7607 3876 7609 3877 7633
      3886 7626 3879 7620 3879 7619 3897 7625
      3891 7624 3892 7625 3894 7628 3891 7631
      3896 7631 3884 7637 3884 7638
TIME...MOT...LOC 2055Z 264DEG 36KT 3889 7647 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BIRCHFIELD
1 follow-up statement
608 
WWUS51 KPHI 252117
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
517 PM EDT Sun Sep 25 2022

MDC029-252126-
/O.CAN.KPHI.SV.W.0169.000000T0000Z-220925T2130Z/
Kent MD-
517 PM EDT Sun Sep 25 2022

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3897 7622 3900 7617 3902 7612 3892 7607
      3883 7609 3886 7620 3894 7621 3894 7624
      3896 7625 3893 7626 3894 7628 3893 7629
      3898 7629
TIME...MOT...LOC 2116Z 264DEG 44KT 3892 7620 

$$

MDC035-041-252130-
/O.CON.KPHI.SV.W.0169.000000T0000Z-220925T2130Z/
Talbot MD-Queen Anne's MD-
517 PM EDT Sun Sep 25 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTH CENTRAL TALBOT AND SOUTHWESTERN QUEEN ANNE'S COUNTIES...

At 516 PM EDT, a severe thunderstorm was located over Grasonville, or
11 miles southwest of Centerville, moving east at 50 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...
Wye Mills, Grasonville, Chester and Queenstown. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

&&

LAT...LON 3897 7622 3900 7617 3902 7612 3892 7607
      3883 7609 3886 7620 3894 7621 3894 7624
      3896 7625 3893 7626 3894 7628 3893 7629
      3898 7629
TIME...MOT...LOC 2116Z 264DEG 44KT 3892 7620 

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

$$

BIRCHFIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 5:25 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot35 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2022Every 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.