Alert archive / Maryland / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 170, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 25, 2022, 5:25 PM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland; Kent County, Delaware. 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, 5:25 PM EDT (21:25 UTC)
Expired
Sep 25, 2022, 6:00 PM EDT
In force
35 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

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

The radar

The Dover AFB radar (KDOX), 47 km from the middle of the area, began a volume at 21:28 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.4 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-pSkew-T log-p diagram, Wallops Is Stn, 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, Wallops Is Stn, VA at 12:00Z on 2022-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
1638 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

954 
WUUS51 KPHI 252125
SVRPHI
DEC001-MDC011-035-041-252200-
/O.NEW.KPHI.SV.W.0170.220925T2125Z-220925T2200Z/

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

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern Kent County in central Delaware...
  Northeastern Talbot County in eastern Maryland...
  Southeastern Queen Anne's County in northeastern Maryland...
  Central Caroline County in eastern Maryland...

* Until 600 PM EDT.

* At 525 PM EDT, a severe thunderstorm was located over Wye Mills, or
  7 miles south of Centerville, moving east 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...
  Denton, Greensboro, Oakland, Ridgely, Goldsboro, Queen Anne, Starr,
  Skipton, Jumptown, Wye Mills, Sandtown, Cordova, Hillsboro and
  Henderson.

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 3888 7613 3899 7614 3910 7571 3886 7569
TIME...MOT...LOC 2125Z 258DEG 37KT 3894 7607 

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

$$

BIRCHFIELD
2 follow-up statements
006 
WWUS51 KPHI 252142
SVSPHI

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

MDC035-041-252151-
/O.CAN.KPHI.SV.W.0170.000000T0000Z-220925T2200Z/
Talbot MD-Queen Anne's MD-
542 PM EDT Sun Sep 25 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TALBOT AND
SOUTHEASTERN QUEEN ANNE'S COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3898 7594 3900 7592 3907 7571 3892 7569
      3890 7570 3892 7595 3893 7595
TIME...MOT...LOC 2141Z 258DEG 32KT 3897 7590 

$$

DEC001-MDC011-252200-
/O.CON.KPHI.SV.W.0170.000000T0000Z-220925T2200Z/
Kent DE-Caroline MD-
542 PM EDT Sun Sep 25 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR WEST CENTRAL KENT AND NORTHERN CAROLINE COUNTIES...

At 541 PM EDT, a severe thunderstorm was located over Jumptown, or 10
miles southeast of Centerville, moving east at 35 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...
Greensboro, Oakland, Ridgely, Goldsboro, Jumptown and Sandtown. 

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 3898 7594 3900 7592 3907 7571 3892 7569
      3890 7570 3892 7595 3893 7595
TIME...MOT...LOC 2141Z 258DEG 32KT 3897 7590 

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

$$

BIRCHFIELD
323 
WWUS51 KPHI 252156
SVSPHI

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

DEC001-MDC011-252205-
/O.EXP.KPHI.SV.W.0170.000000T0000Z-220925T2200Z/
Kent DE-Caroline MD-
556 PM EDT Sun Sep 25 2022

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL KENT AND NORTHERN
CAROLINE COUNTIES WILL EXPIRE AT 600 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will 
be allowed to expire. However gusty winds are still possible with 
this thunderstorm.

LAT...LON 3898 7594 3900 7592 3907 7571 3892 7569
      3890 7570 3892 7595 3893 7595
TIME...MOT...LOC 2155Z 258DEG 37KT 3900 7573 

$$

BIRCHFIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 4:55 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's, Talbot35 min
Sep 25, 2:17 PM EDTSpecial Weather StatementPHINew Castle43 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2022Severe Thunderstorm Warnings in Delaware, 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.