Alert archive / Maryland / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 130, NWS Philadelphia/Mount Holly

July 18, 2022Caroline County, Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2022, 6:44 PM EDT for Caroline County, Kent County, Queen Anne's County, Maryland. It was in force for 61 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 18, 2022, 6:44 PM EDT (22:44 UTC)
Expired
Jul 18, 2022, 7:45 PM EDT
In force
61 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

The radar

The Dover AFB radar (KDOX), 66 km from the middle of the area, began a volume at 22:45 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
Jul 18, 7:26 PM EDTTSTM WND DMG2 Ssw Carville, MDTREES AND WIRES DOWN ON MD 304 EAST/WEST BETWEEN SAFETY DRIVE AND CARVILLE LANE. TIME ESTIMATED VIA 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.

IssuedProductOfficeLasted
Jul 18, 1:47 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.7 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2022-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 324 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 2022-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
324 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
806 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

371 
WUUS51 KPHI 182244
SVRPHI
MDC011-029-035-182345-
/O.NEW.KPHI.SV.W.0130.220718T2244Z-220718T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
644 PM EDT Mon Jul 18 2022

The National Weather Service in Mount Holly NJ has issued a

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

* Until 745 PM EDT.

* At 644 PM EDT, severe thunderstorms were located along a line
  extending from near Church Hill to near Chester, moving east at 20
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Centerville, Centreville, Oakland, Church Hill, Sudlersville,
  Goldsboro, Grasonville, Starr, Starkey Corner, Carville, Hope,
  Queenstown, Henderson, Templeville and Barclay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3892 7634 3899 7626 3897 7622 3900 7617
      3901 7619 3901 7621 3902 7622 3921 7601
      3927 7576 3899 7575 3894 7621 3896 7624
      3893 7626 3894 7628
TIME...MOT...LOC 2244Z 249DEG 15KT 3917 7602 3895 7626 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
Manning
2 follow-up statements
169 
WWUS51 KPHI 182318
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
718 PM EDT Mon Jul 18 2022

MDC029-182328-
/O.CAN.KPHI.SV.W.0130.000000T0000Z-220718T2345Z/
Kent MD-
718 PM EDT Mon Jul 18 2022

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

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

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northeastern Maryland.

LAT...LON 3900 7616 3919 7595 3924 7576 3899 7575
      3895 7614
TIME...MOT...LOC 2318Z 249DEG 15KT 3922 7586 3900 7610 

$$

MDC011-035-182345-
/O.CON.KPHI.SV.W.0130.000000T0000Z-220718T2345Z/
Queen Anne's MD-Caroline MD-
718 PM EDT Mon Jul 18 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN QUEEN ANNE'S AND NORTHEASTERN CAROLINE COUNTIES...

At 718 PM EDT, severe thunderstorms were located along a line
extending from near Sudlersville to near Centerville, moving east at
15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Centerville, Centreville, Oakland, Church Hill, Sudlersville,
Goldsboro, Starr, Starkey Corner, Carville, Hope, Queenstown,
Henderson, Templeville and Barclay.

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.

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 3900 7616 3919 7595 3924 7576 3899 7575
      3895 7614
TIME...MOT...LOC 2318Z 249DEG 15KT 3922 7586 3900 7610 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
Manning
004 
WWUS51 KPHI 182330
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
730 PM EDT Mon Jul 18 2022

MDC011-035-182345-
/O.CON.KPHI.SV.W.0130.000000T0000Z-220718T2345Z/
Queen Anne's MD-Caroline MD-
730 PM EDT Mon Jul 18 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN QUEEN ANNE'S AND NORTHEASTERN CAROLINE COUNTIES...

At 728 PM EDT, a severe thunderstorm was located over Starr, or near
Centerville, moving east at 30 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated. At 710 PM, 64 MPH wind gusts were measured 
         near Queenstown. 

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

Locations impacted include...
Centerville, Centreville, Oakland, Church Hill, Sudlersville,
Goldsboro, Starr, Starkey Corner, Carville, Hope, Queenstown,
Henderson, Templeville and Barclay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Frequent cloud to ground lightning is occurring with this storm. 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 3900 7616 3919 7595 3924 7576 3899 7575
      3895 7614
TIME...MOT...LOC 2328Z 251DEG 24KT 3900 7602 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$
Manning

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 5:09 PM EDTSpecial Weather StatementPHIKent51 min
Jul 18, 5:31 PM EDTSpecial Weather StatementPHICecil29 min
Jul 18, 5:42 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's63 min
Jul 18, 7:38 PM EDTSevere Thunderstorm Warning Considerable damage threatPHICaroline, Queen Anne's67 min

Nearby

Severe Thunderstorm Warnings in Maryland, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.