Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 42, NWS Philadelphia/Mount Holly

May 23, 20194 counties in Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 23, 2019, 3:53 PM EDT for 4 counties in Maryland. It was in force for 52 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 23, 2019, 3:53 PM EDT (19:53 UTC)
Expired: May 23, 2019, 4:45 PM EDT
In force: 52 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 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 19:54 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
May 23, 4:39 PM EDT	MARINE TSTM WIND 40	15 Ese Bay Ridge, MD

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 23, 1:02 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 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-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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1112 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

969 
WUUS51 KPHI 231953
SVRPHI
MDC011-029-035-041-232045-
/O.NEW.KPHI.SV.W.0042.190523T1953Z-190523T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
353 PM EDT Thu May 23 2019

The National Weather Service in Mount Holly NJ has issued a

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

* Until 445 PM EDT.

* At 353 PM EDT, severe thunderstorms were located along a line
  extending from near Baltimore to Severna Park to New Carrollton,
  moving east at 50 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Centerville, Talbot, Chestertown, Centreville, Greensboro, Oakland,
  Ridgely, Rock Hall, St. Michaels, Church Hill, Millington,
  Sudlersville, Goldsboro, Queen Anne, Old Town, Grasonville, Starr,
  Copperville, Jumptown and Morgnec.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 3883 7630 3879 7619 3895 7621 3896 7631
      3887 7636 3887 7637 3890 7637 3904 7631
      3898 7628 3900 7617 3917 7628 3928 7620
      3929 7576 3900 7574 3871 7628 3878 7629
      3876 7632 3873 7631 3867 7634 3875 7637
TIME...MOT...LOC 1953Z 275DEG 46KT 3927 7659 3910 7657 3895 7687 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

Robertson

3 follow-up statements

909 
WWUS51 KPHI 232011
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
411 PM EDT Thu May 23 2019

MDC011-029-035-041-232045-
/O.CON.KPHI.SV.W.0042.000000T0000Z-190523T2045Z/
Talbot MD-Queen Anne's MD-Caroline MD-Kent MD-
411 PM EDT Thu May 23 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHERN TALBOT...QUEEN ANNE'S...NORTHERN CAROLINE AND SOUTHERN
KENT COUNTIES...

At 410 PM EDT, severe thunderstorms were located along a line
extending from near Millers Island to near Gibson Island to Severn
River to near Bowie, moving east at 55 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated. Damaging winds have occurred in the 
         Washington DC area.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Centerville, Talbot, Chestertown, Centreville, Greensboro, Oakland,
Ridgely, Rock Hall, St. Michaels, Church Hill, Millington,
Sudlersville, Goldsboro, Queen Anne, Old Town, Grasonville, Starr,
Copperville, Jumptown and Morgnec.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

Frequent cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3883 7630 3879 7619 3895 7621 3896 7631
      3887 7636 3887 7637 3890 7637 3904 7631
      3898 7628 3900 7617 3917 7628 3928 7620
      3929 7576 3900 7574 3871 7628 3878 7629
      3876 7632 3873 7631 3867 7634 3875 7637
TIME...MOT...LOC 2010Z 277DEG 46KT 3924 7638 3907 7636 3897 7645 3892
7666

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

Gorse

668 
WWUS51 KPHI 232032
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
432 PM EDT Thu May 23 2019

MDC011-029-035-041-232045-
/O.CON.KPHI.SV.W.0042.000000T0000Z-190523T2045Z/
Talbot MD-Queen Anne's MD-Caroline MD-Kent MD-
432 PM EDT Thu May 23 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHERN TALBOT...QUEEN ANNE'S...NORTHERN CAROLINE AND
SOUTHWESTERN KENT COUNTIES...

At 431 PM EDT, severe thunderstorms were located along a line
extending from near Old Town to near Centreville to near Grasonville
to near Kent Point, moving east at 45 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...
Centerville, Talbot, Centreville, Greensboro, Oakland, Ridgely, Rock
Hall, St. Michaels, Church Hill, Goldsboro, Queen Anne, Old Town,
Grasonville, Starr, Copperville, Jumptown, Tilghman Island,
Stevensville, Skipton and Chester.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3883 7630 3879 7619 3895 7621 3896 7631
      3887 7636 3887 7637 3890 7637 3904 7631
      3898 7628 3900 7617 3914 7626 3916 7575
      3900 7574 3871 7628 3878 7629 3876 7632
      3873 7631 3867 7634 3875 7637
TIME...MOT...LOC 2031Z 277DEG 38KT 3910 7610 3902 7610 3895 7616 3883
7633

HAIL...0.75IN
WIND...60MPH
 
$$

Staarmann

129 
WWUS51 KPHI 232043
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
443 PM EDT Thu May 23 2019

MDC011-029-035-041-232051-
/O.EXP.KPHI.SV.W.0042.000000T0000Z-190523T2045Z/
Talbot MD-Queen Anne's MD-Caroline MD-Kent MD-
443 PM EDT Thu May 23 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TALBOT...QUEEN
ANNE'S...NORTHERN CAROLINE AND SOUTHWESTERN KENT COUNTIES WILL EXPIRE
AT 445 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A severe thunderstorm watch remains in effect until 800 PM EDT for
eastern and northeastern Maryland.

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

A Severe Thunderstorm Warning still remains in effect for Talbot, 
southwestern Queen Anne's, and Caroline Counties in eastern Maryland 
until 530 PM EDT.

LAT...LON 3883 7630 3879 7619 3895 7621 3896 7631
      3887 7636 3887 7637 3890 7637 3904 7631
      3898 7628 3900 7617 3914 7626 3916 7575
      3900 7574 3871 7628 3878 7629 3876 7632
      3873 7631 3867 7634 3875 7637
TIME...MOT...LOC 2041Z 275DEG 46KT 3909 7596 3901 7597 3894 7603 3882
7620

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	63 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2019 Every 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.