Alert archive / Maryland / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 105, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2021, 3:12 PM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 48 min. 2 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 1, 2021, 3:12 PM EDT (19:12 UTC)
- Expired
- Jul 1, 2021, 4:00 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 19:15 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 1, 4:00 PM EDT | TSTM WND DMG | 2 Ssw Stevensville, MD | TREES AND UTILITY WIRES DOWN WITH DEBRIS ON THE ROADWAY ALONG MARYLAND ROUTE 8 SOUTH OF KENT MANOR DRIVE. |
| Jul 1, 4:00 PM EDT | TSTM WND DMG | 2 Ssw Stevensville, MD | TREES AND UTILITY WIRES DOWN WITH DEBRIS ON THE ROADWAY ALONG MARYLAND ROUTE 8 SOUTH OF KENT MANOR DRIVE. |
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 1, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.2 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.
- Mixed-layer CAPE
- 604 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 928 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted.
733
WUUS51 KPHI 011912
SVRPHI
MDC029-035-041-012000-
/O.NEW.KPHI.SV.W.0105.210701T1912Z-210701T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
312 PM EDT Thu Jul 1 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Talbot County in eastern Maryland...
Central Queen Anne's County in northeastern Maryland...
Southwestern Kent County in northeastern Maryland...
* Until 400 PM EDT.
* At 312 PM EDT, a severe thunderstorm was located near Stevensville,
or near Severn River, moving east at 30 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...
Easton, Centerville, Centreville, Romancoke, Church Hill, Queen
Anne, Grasonville, Starr, Stevensville, Skipton, Copperville,
Chester, Overton, Starkey Corner, Wye Mills, Cordova, Carville,
Hope, Queenstown and Stevensville South.
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 3895 7636 3904 7631 3898 7628 3897 7622
3900 7617 3903 7624 3911 7624 3916 7595
3881 7596 3882 7620 3893 7620 3896 7625
3892 7625 3894 7628 3893 7631 3896 7631
3891 7634 3886 7633 3884 7638
TIME...MOT...LOC 1912Z 274DEG 25KT 3899 7637
HAIL...0.75IN
WIND...60MPH
$$
Davis2 follow-up statements
488
WWUS51 KPHI 011939
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
339 PM EDT Thu Jul 1 2021
MDC029-035-041-012000-
/O.CON.KPHI.SV.W.0105.000000T0000Z-210701T2000Z/
Talbot MD-Queen Anne's MD-Kent MD-
339 PM EDT Thu Jul 1 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN TALBOT...CENTRAL QUEEN ANNE'S AND SOUTHWESTERN KENT
COUNTIES...
At 338 PM EDT, a severe thunderstorm was located near Wye Mills, or
near Centerville, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible. An additional line of severe thunderstorms is
about to cross the Bay behind this storm.
Locations impacted include...
Easton, Centerville, Centreville, Romancoke, Church Hill, Queen Anne,
Grasonville, Starr, Stevensville, Skipton, Copperville, Chester,
Overton, Starkey Corner, Wye Mills, Cordova, Carville, Hope,
Queenstown and Stevensville South.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3895 7636 3904 7631 3898 7628 3897 7622
3900 7617 3903 7624 3911 7624 3916 7595
3881 7596 3882 7620 3893 7620 3896 7625
3892 7625 3894 7628 3893 7631 3896 7631
3891 7634 3886 7633 3884 7638
TIME...MOT...LOC 1938Z 274DEG 25KT 3898 7614
HAIL...0.75IN
WIND...60MPH
$$
Davis248
WWUS51 KPHI 011951
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
351 PM EDT Thu Jul 1 2021
MDC029-035-041-012001-
/O.EXP.KPHI.SV.W.0105.000000T0000Z-210701T2000Z/
Talbot MD-Queen Anne's MD-Kent MD-
351 PM EDT Thu Jul 1 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TALBOT...CENTRAL
QUEEN ANNE'S AND SOUTHWESTERN KENT COUNTIES WILL EXPIRE AT 400 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However small hail and gusty winds are still
possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
eastern and northeastern Maryland.
LAT...LON 3895 7636 3904 7631 3898 7628 3897 7622
3900 7617 3903 7624 3911 7624 3916 7595
3881 7596 3882 7620 3893 7620 3896 7625
3892 7625 3894 7628 3893 7631 3896 7631
3891 7634 3886 7633 3884 7638
TIME...MOT...LOC 1951Z 274DEG 25KT 3897 7603
$$
DavisThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 3:56 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 49 min |
| Jul 1, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 52 min |
| Jul 1, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 52 min |
| Jul 1, 4:10 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 94 min |
| Jul 1, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 43 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2021Every severe thunderstorm warning in 2021
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.