Alert archive / Maryland / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 149, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2023, 8:09 PM EDT for 4 counties in Maryland; Kent County, Sussex County, Delaware. It was in force for 51 min. 3 reports 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 2, 2023, 8:09 PM EDT (00:09 UTC)
- Expired
- Jul 2, 2023, 9:00 PM EDT
- In force
- 51 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 57 km from the middle of the area, began a volume at 00:12 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 2, 8:11 PM EDT | TSTM WND DMG | 1 Nw Centreville, MD | Report of 1 tree down on Hammond Street in Centreville. Time estimated via radar. |
| Jul 2, 8:11 PM EDT | TSTM WND DMG | 1 Nw Centreville, MD | Report of 1 tree down on Hammond Street in Centreville. Time estimated via radar. |
| Jul 2, 8:11 PM EDT | TSTM WND DMG | 1 Nw Centreville, MD | Report of 1 tree down on Hammond Street in Centreville. 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 2, 4:31 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.2 hours before the alert went out and 118 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.
- Mixed-layer CAPE
- 620 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1647 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
844
WUUS51 KPHI 030009
SVRPHI
DEC001-005-MDC011-029-035-041-030100-
/O.NEW.KPHI.SV.W.0149.230703T0009Z-230703T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
809 PM EDT Sun Jul 2 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
West central Sussex County in southern Delaware...
Southwestern Kent County in central Delaware...
Northeastern Talbot County in eastern Maryland...
Queen Anne's County in northeastern Maryland...
Caroline County in eastern Maryland...
Southwestern Kent County in northeastern Maryland...
* Until 900 PM EDT.
* At 809 PM EDT, a severe thunderstorm was located over Carville, or
over Centerville, moving southeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Dover, Centerville, Chestertown, Denton, Centreville, Camden,
Greensboro, Oakland, Ridgely, Church Hill, Sudlersville, Goldsboro,
Queen Anne, Woodside, Viola, Hartly, Old Town, Starr, Jumptown and
Hazlettville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3925 7609 3913 7549 3877 7568 3897 7622
3900 7617 3901 7619 3901 7621 3902 7623
TIME...MOT...LOC 0009Z 295DEG 22KT 3907 7602
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fitzsimmons3 follow-up statements
148
WWUS51 KPHI 030034
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
834 PM EDT Sun Jul 2 2023
DEC005-MDC029-041-030043-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-230703T0100Z/
Sussex DE-Talbot MD-Kent MD-
834 PM EDT Sun Jul 2 2023
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL SUSSEX...
NORTHEASTERN TALBOT AND SOUTHWESTERN KENT COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central and southern Delaware...and eastern and northeastern
Maryland.
LAT...LON 3894 7596 3916 7587 3907 7552 3895 7559
3883 7565
TIME...MOT...LOC 0033Z 291DEG 22KT 3903 7583
$$
DEC001-MDC011-035-030100-
/O.CON.KPHI.SV.W.0149.000000T0000Z-230703T0100Z/
Kent DE-Queen Anne's MD-Caroline MD-
834 PM EDT Sun Jul 2 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTHWESTERN KENT...EAST CENTRAL QUEEN ANNE'S AND NORTHEASTERN
CAROLINE COUNTIES...
At 833 PM EDT, a severe thunderstorm was located over Goldsboro, or
12 miles east of Centerville, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Denton, Greensboro, Oakland, Ridgely, Goldsboro, Woodside, Viola,
Jumptown, Sandtown, Andrewsville, Felton, Henderson, Marydel,
Templeville, Barclay, Woodside East and Riverview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3894 7596 3916 7587 3907 7552 3895 7559
3883 7565
TIME...MOT...LOC 0033Z 291DEG 22KT 3903 7583
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich776
WWUS51 KPHI 030043
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
843 PM EDT Sun Jul 2 2023
MDC035-030053-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-230703T0100Z/
Queen Anne's MD-
843 PM EDT Sun Jul 2 2023
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL QUEEN ANNE'S
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central Delaware...and eastern Maryland.
LAT...LON 3890 7585 3912 7573 3907 7552 3895 7559
3884 7565 3889 7583
TIME...MOT...LOC 0043Z 294DEG 23KT 3899 7572
$$
DEC001-MDC011-030100-
/O.CON.KPHI.SV.W.0149.000000T0000Z-230703T0100Z/
Kent DE-Caroline MD-
843 PM EDT Sun Jul 2 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTHWESTERN KENT AND EAST CENTRAL CAROLINE COUNTIES...
At 843 PM EDT, a severe thunderstorm was located over Sandtown, or 15
miles southwest of Dover, moving southeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Denton, Greensboro, Woodside, Viola, Sandtown, Felton, Woodside East
and Riverview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3890 7585 3912 7573 3907 7552 3895 7559
3884 7565 3889 7583
TIME...MOT...LOC 0043Z 294DEG 23KT 3899 7572
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich004
WWUS51 KPHI 030058
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
858 PM EDT Sun Jul 2 2023
DEC001-MDC011-030107-
/O.EXP.KPHI.SV.W.0149.000000T0000Z-230703T0100Z/
Kent DE-Caroline MD-
858 PM EDT Sun Jul 2 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT AND EAST
CENTRAL CAROLINE COUNTIES WILL EXPIRE AT 900 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central Delaware...and eastern Maryland.
LAT...LON 3890 7585 3912 7573 3907 7552 3895 7559
3884 7565 3889 7583
TIME...MOT...LOC 0057Z 295DEG 22KT 3898 7561
$$
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 6:27 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 63 min |
| Jul 3, 7:00 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 45 min |
| Jul 3, 7:31 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 59 min |
| Jul 3, 7:43 PM EDT | Tornado Warning | PHI | Caroline | 17 min |
| Jul 2, 8:52 PM EDT | Areal Flood Advisory | PHI | New Castle | 2 hr |
| Jul 2, 8:57 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 48 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2023Severe Thunderstorm Warnings in Delaware, 2023Every 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.