Alert archive / Maryland / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 281, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 27, 2021, 7:37 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2021, 7:37 PM EDT (23:37 UTC)
- Expired
- Aug 27, 2021, 8:11 PM EDT
- In force
- 34 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
The radar
The Dover AFB radar (KDOX), 76 km from the middle of the area, began a volume at 23:41 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.6 hours before the alert went out and 109 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
- 780 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 983 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
345
WUUS51 KPHI 272337
SVRPHI
MDC029-035-280030-
/O.NEW.KPHI.SV.W.0281.210827T2337Z-210828T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
737 PM EDT Fri Aug 27 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Queen Anne's County in northeastern Maryland...
Kent County in northeastern Maryland...
* Until 830 PM EDT.
* At 736 PM EDT, a severe thunderstorm was located near Overton, or 9
miles west of Centerville, moving east at 20 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...
Chestertown, Rock Hall, Church Hill, Newtown, Starkey Corner,
Morgnec, Old Town, Crumpton, Kennedyville, Langford and Kingstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to hail and damaging winds, frequent cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 3926 7622 3928 7620 3929 7617 3931 7618
3935 7596 3911 7586 3904 7624 3909 7623
3913 7625 3915 7628 3917 7628
TIME...MOT...LOC 2336Z 252DEG 16KT 3908 7622
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse2 follow-up statements
271
WWUS51 KPHI 272356
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
756 PM EDT Fri Aug 27 2021
MDC029-035-280030-
/O.CON.KPHI.SV.W.0281.000000T0000Z-210828T0030Z/
Queen Anne's MD-Kent MD-
756 PM EDT Fri Aug 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR NORTHEASTERN QUEEN ANNE'S AND KENT COUNTIES...
At 755 PM EDT, a severe thunderstorm was located over Old Town, or 7
miles northwest of Centerville, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and penny size hail. Tree into a house
was reported in Stevensville.
SOURCE...Broadcast media.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Chestertown, Rock Hall, Church Hill, Newtown, Starkey Corner,
Morgnec, Old Town, Crumpton, Kennedyville, Langford and Kingstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 3926 7622 3928 7620 3929 7617 3931 7618
3935 7596 3911 7586 3904 7624 3909 7623
3913 7625 3915 7628 3917 7628
TIME...MOT...LOC 2355Z 239DEG 17KT 3913 7612
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse609
WWUS51 KPHI 280011
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
811 PM EDT Fri Aug 27 2021
MDC029-035-280021-
/O.CAN.KPHI.SV.W.0281.000000T0000Z-210828T0030Z/
Queen Anne's MD-Kent MD-
811 PM EDT Fri Aug 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S AND
KENT COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
LAT...LON 3926 7622 3928 7620 3929 7617 3931 7618
3935 7596 3911 7586 3904 7624 3909 7623
3913 7625 3915 7628 3917 7628
TIME...MOT...LOC 0009Z 252DEG 16KT 3915 7603
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.