Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 28, NWS Philadelphia/Mount Holly

May 2, 20194 counties in Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 2, 2019, 4:48 PM EDT for 4 counties in Maryland. It was in force for 42 min. 1 report 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
May 2, 2019, 4:48 PM EDT (20:48 UTC)
Expired
May 2, 2019, 5:30 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Caroline County, MD, 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 20:50 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

TimeReportWhereRemark
May 2, 5:00 PM EDTTSTM WND GST 482 Sw Stevensville, MD

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 12:00Z, 8.8 hours before the alert went out and 101 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 2019-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 2019-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
1142 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

029 
WUUS51 KPHI 022048
SVRPHI
MDC011-029-035-041-022130-
/O.NEW.KPHI.SV.W.0028.190502T2048Z-190502T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
448 PM EDT Thu May 2 2019

The National Weather Service in Mount Holly NJ has issued a

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

* Until 530 PM EDT.

* At 447 PM EDT, a severe thunderstorm was located near Severn River,
  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...
  Easton, Centerville, Centreville, Romancoke, Queen Anne, Tanyard,
  Grasonville, Starr, Stevensville, Skipton, Copperville, Jumptown,
  Chester, Matthews, Overton, Wye Mills, Cordova, Carville, Hope and
  Queenstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3904 7631 3897 7622 3900 7617 3903 7624
      3907 7623 3906 7589 3873 7595 3883 7629
      3885 7627 3882 7622 3886 7626 3893 7620
      3897 7625 3891 7624 3892 7625 3894 7628
      3889 7629 3896 7631 3887 7633 3885 7638
TIME...MOT...LOC 2047Z 278DEG 31KT 3897 7641 

HAIL...1.00IN
WIND...60MPH
 
$$

Iovino
1 follow-up statement
994 
WWUS51 KPHI 022114
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
514 PM EDT Thu May 2 2019

MDC029-022122-
/O.CAN.KPHI.SV.W.0028.000000T0000Z-190502T2130Z/
Kent MD-
514 PM EDT Thu May 2 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning was passing to 
the south of Kent County.

LAT...LON 3904 7631 3897 7622 3900 7617 3907 7618
      3906 7589 3873 7595 3883 7629 3882 7624
      3882 7621 3883 7619 3884 7620 3886 7626
      3886 7621 3893 7620 3897 7625 3892 7625
      3896 7631 3891 7629 3892 7633 3885 7637
TIME...MOT...LOC 2112Z 278DEG 21KT 3895 7624 

$$

MDC011-035-041-022130-
/O.CON.KPHI.SV.W.0028.000000T0000Z-190502T2130Z/
Talbot MD-Queen Anne's MD-Caroline MD-
514 PM EDT Thu May 2 2019

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

At 512 PM EDT, a severe thunderstorm was located over Grasonville, 
moving east at 25 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...
Easton, Centreville, Queen Anne, Tanyard, Grasonville, Starr, 
Stevensville, Skipton, Chester, Matthews, Wye Mills, Cordova, 
Queenstown and Hillsboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3904 7631 3897 7622 3900 7617 3907 7618
      3906 7589 3873 7595 3883 7629 3882 7624
      3882 7621 3883 7619 3884 7620 3886 7626
      3886 7621 3893 7620 3897 7625 3892 7625
      3896 7631 3891 7629 3892 7633 3885 7637
TIME...MOT...LOC 2112Z 278DEG 21KT 3895 7624 

HAIL...1.00IN
WIND...60MPH
 
$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 4:19 AM EDTDense Fog AdvisoryPHICecil, Kent, Queen Anne's5 hr
May 2, 4:23 PM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot52 min
May 2, 5:32 PM EDTSpecial Weather StatementPHICaroline, Queen Anne's, Talbot58 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2019Every severe thunderstorm warning in 2019

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.