Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 54, NWS Philadelphia/Mount Holly

May 28, 20194 counties in Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 28, 2019, 7:50 AM EDT for 4 counties in Maryland. It was in force for 40 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
May 28, 2019, 7:50 AM EDT (11:50 UTC)
Expired
May 28, 2019, 8:30 AM EDT
In force
40 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 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), 67 km from the middle of the area, began a volume at 11:50 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.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 11.8 hours before the alert went out and 103 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 00:00Z on 2019-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 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 00:00Z on 2019-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
36 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1728 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

502 
WUUS51 KPHI 281150
SVRPHI
MDC011-029-035-041-281230-
/O.NEW.KPHI.SV.W.0054.190528T1150Z-190528T1230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
750 AM EDT Tue May 28 2019

The National Weather Service in Mount Holly NJ has issued a

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

* Until 830 AM EDT.

* At 749 AM EDT, severe thunderstorms were located along a line
  extending from near Stevensville to South River to near Upper
  Marlboro, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Easton, Centerville, Talbot, Denton, Centreville, Greensboro,
  Oakland, Ridgely, St. Michaels, Goldsboro, Queen Anne, Grasonville,
  Starr, Copperville, Jumptown, Tilghman Island, Stevensville,
  Skipton, Chester and Matthews.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3883 7630 3879 7619 3894 7621 3897 7625
      3894 7636 3904 7631 3897 7622 3900 7617
      3903 7624 3908 7623 3904 7574 3885 7583
      3868 7621 3876 7622 3872 7629 3878 7629
      3868 7634 3875 7637
TIME...MOT...LOC 1149Z 268DEG 39KT 3902 7635 3888 7649 3880 7669 

HAIL...<.75IN
WIND...60MPH
 
$$

Robertson
1 follow-up statement
024 
WWUS51 KPHI 281221
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
821 AM EDT Tue May 28 2019

MDC029-281231-
/O.CAN.KPHI.SV.W.0054.000000T0000Z-190528T1230Z/
Kent MD-
821 AM EDT Tue May 28 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
Therefore, the warning has been cancelled.

LAT...LON 3879 7597 3875 7606 3877 7629 3878 7629
      3877 7630 3877 7635 3883 7630 3879 7619
      3888 7620 3890 7616 3907 7610 3904 7574
      3885 7583
TIME...MOT...LOC 1221Z 267DEG 39KT 3904 7596 3889 7605 3881 7625 

$$

MDC011-035-041-281230-
/O.CON.KPHI.SV.W.0054.000000T0000Z-190528T1230Z/
Talbot MD-Queen Anne's MD-Caroline MD-
821 AM EDT Tue May 28 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM EDT
FOR NORTHERN TALBOT...SOUTHEASTERN QUEEN ANNE'S AND CENTRAL CAROLINE
COUNTIES...

At 821 AM EDT, severe thunderstorms were located along a line
extending from Hope to Skipton to Talbot, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Easton, Centerville, Talbot, Denton, Centreville, Greensboro,
Oakland, Ridgely, St. Michaels, Goldsboro, Queen Anne, Starr,
Skipton, Copperville, Jumptown, Matthews, Wye Mills, Griffin, Cordova
and Carville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3879 7597 3875 7606 3877 7629 3878 7629
      3877 7630 3877 7635 3883 7630 3879 7619
      3888 7620 3890 7616 3907 7610 3904 7574
      3885 7583
TIME...MOT...LOC 1221Z 267DEG 39KT 3904 7596 3889 7605 3881 7625 

HAIL...<.75IN
WIND...60MPH
 
$$

Robertson

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 8:28 AM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot47 min
May 28, 5:09 PM EDTSpecial Weather StatementPHICecil51 min
May 28, 5:14 PM EDTSevere Thunderstorm WarningPHICecil46 min
May 28, 6:11 PM EDTSevere Thunderstorm WarningPHICecil64 min
May 28, 6:14 PM EDTAreal Flood AdvisoryPHICecil4 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.