Alert archive / Maryland / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 155, NWS Philadelphia/Mount Holly

July 3, 2023Caroline County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 2023, 7:00 PM EDT for Caroline County, Talbot County, Maryland. It was in force for 45 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: Jul 3, 2023, 7:00 PM EDT (23:00 UTC)
Expired: Jul 3, 2023, 7:45 PM EDT
In force: 45 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Damage threat: Destructive
Hail: 1.0 in
Wind: 80.0 mph

Counties Caroline County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 58 km from the middle of the area, began a volume at 23:00 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
Jul 3, 7:35 PM EDT	TSTM WND DMG	Federalsburg, MD	Trees down. Time estimated from radar.

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
Jul 3, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.0 hours before the alert went out and 107 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: 1776 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1219 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

As transmitted.

671 
WUUS51 KPHI 032300
SVRPHI
MDC011-041-032345-
/O.NEW.KPHI.SV.W.0155.230703T2300Z-230703T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
700 PM EDT Mon Jul 3 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Talbot County in eastern Maryland...
  Caroline County in eastern Maryland...

* Until 745 PM EDT.

* At 659 PM EDT, a severe thunderstorm was located over Oxford, or 8
  miles southwest of Easton, moving east at 35 mph.

  THIS IS A DESTRUCTIVE STORM FOR SOUTHERN TALBOT COUNTY!.

  HAZARD...80 mph wind gusts and quarter size hail.

  SOURCE...Mesonet. A Personal weather station measured a 84 mph 
           wind gust on Tilghman Island.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be heavily damaged. Expect 
           considerable damage to roofs, windows, and vehicles. 
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Easton, Denton, Federalsburg, Trappe, St. Michaels, Preston,
  Oxford, Tanyard, Harmony, Smithville, Copperville, Agner, Matthews,
  Choptank, Hambleton, Griffin, Windyhill and Cordova.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3880 7630 3882 7623 3879 7620 3883 7619
      3896 7573 3864 7570 3869 7577 3870 7590
      3866 7596 3860 7599 3857 7604 3863 7608
      3864 7615 3869 7618 3867 7620 3868 7621
      3877 7624 3871 7628 3872 7628
TIME...MOT...LOC 2259Z 261DEG 29KT 3869 7619 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

Staarmann

2 follow-up statements

654 
WWUS51 KPHI 032312
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
712 PM EDT Mon Jul 3 2023

MDC011-041-032345-
/O.CON.KPHI.SV.W.0155.000000T0000Z-230703T2345Z/
Talbot MD-Caroline MD-
712 PM EDT Mon Jul 3 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR TALBOT AND CAROLINE COUNTIES...

At 712 PM EDT, a severe thunderstorm was located over Hambleton, or
near Easton, moving east at 35 mph.

THIS IS A DESTRUCTIVE STORM FOR SOUTHERN TALBOT COUNTY.

HAZARD...80 mph wind gusts and ping pong ball size hail.

SOURCE...Mesonet. A Personal weather station measured a 84 mph wind 
         gust on Tilghman Island.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Easton, Denton, Federalsburg, Trappe, Preston, Oxford, Tanyard,
Harmony, Smithville, Copperville, Agner, Matthews, Choptank,
Hambleton, Griffin, Windyhill and Cordova.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3879 7620 3883 7619 3896 7573 3864 7570
      3869 7577 3870 7590 3866 7596 3860 7599
      3857 7604 3863 7608 3864 7615 3869 7618
      3867 7620 3868 7621 3877 7624
TIME...MOT...LOC 2312Z 262DEG 29KT 3868 7606 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

Staarmann

968 
WWUS51 KPHI 032335
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
735 PM EDT Mon Jul 3 2023

MDC011-041-032345-
/O.CON.KPHI.SV.W.0155.000000T0000Z-230703T2345Z/
Talbot MD-Caroline MD-
735 PM EDT Mon Jul 3 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR EASTERN TALBOT AND CAROLINE COUNTIES...

At 735 PM EDT, a severe thunderstorm was located over Federalsburg,
or near Hurlock, moving east at 35 mph.

THIS IS A DESTRUCTIVE STORM FOR SOUTHERN TALBOT COUNTY!

HAZARD...80 mph wind gusts and ping pong ball size hail.

SOURCE...Public.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Denton, Federalsburg, Trappe, Preston, Tanyard, Harmony, Smithville, 
Agner, Matthews, Choptank, Hambleton, Griffin, Windyhill and Cordova.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3867 7617 3889 7599 3896 7573 3864 7570
      3869 7577 3870 7590 3866 7596 3860 7599
      3857 7604 3863 7608 3864 7615
TIME...MOT...LOC 2335Z 261DEG 29KT 3871 7582 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 8:09 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	51 min
Jul 3, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	63 min
Jul 3, 7:31 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline	59 min
Jul 3, 7:43 PM EDT	Tornado Warning	PHI	Caroline	17 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2023 Every severe thunderstorm warning in 2023

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.