Alert archive / Maryland / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 149, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 2, 2017, 9:12 PM EDT for Caroline County, 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 2, 2017, 9:12 PM EDT (01:12 UTC)
- Expired
- Aug 2, 2017, 9:46 PM EDT
- In force
- 34 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Caroline County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 67 km from the middle of the area, began a volume at 01:12 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.2 hours before the alert went out and 113 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
- 691 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1605 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
781
WUUS51 KPHI 030112
SVRPHI
MDC011-029-035-030200-
/O.NEW.KPHI.SV.W.0149.170803T0112Z-170803T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
912 PM EDT WED AUG 2 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Queen Anne's County in northeastern Maryland...
North central Caroline County in eastern Maryland...
Southwestern Kent County in northeastern Maryland...
* Until 1000 PM EDT
* At 912 PM EDT, a severe thunderstorm was located near Old Town, or
8 miles northwest of Centerville, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Centerville, Chestertown, Centreville, Oakland, Ridgely, Rock Hall,
Church Hill, Sudlersville, Old Town, Starr, Langford, Jumptown,
Starkey Corner, Carville, Hope, Templeville, Barclay and Kingstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3925 7620 3917 7575 3891 7590 3907 7623
3909 7623 3914 7626
TIME...MOT...LOC 0112Z 292DEG 21KT 3914 7616
HAIL...0.88IN
WIND...60MPH
$$
po2 follow-up statements
606
WWUS51 KPHI 030134
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
934 PM EDT WED AUG 2 2017
MDC011-030144-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-170803T0200Z/
Caroline MD-
934 PM EDT WED AUG 2 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CAROLINE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning moved out of the
warned area.
LAT...LON 3916 7614 3922 7610 3921 7596 3917 7579
3900 7593 3908 7609 3912 7611
TIME...MOT...LOC 0134Z 292DEG 21KT 3909 7601
$$
MDC029-035-030200-
/O.CON.KPHI.SV.W.0149.000000T0000Z-170803T0200Z/
Queen Anne's MD-Kent MD-
934 PM EDT WED AUG 2 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN QUEEN ANNE'S AND CENTRAL KENT COUNTIES...
At 934 PM EDT, a severe thunderstorm was located over Starkey Corner,
or near Centerville, moving east at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Chestertown, Centreville, Church Hill, Sudlersville, Starkey Corner,
Old Town, Carville, Hope, Barclay and Kingstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3916 7614 3922 7610 3921 7596 3917 7579
3900 7593 3908 7609 3912 7611
TIME...MOT...LOC 0134Z 292DEG 21KT 3909 7601
HAIL...0.88IN
WIND...60MPH
$$
po286
WWUS51 KPHI 030146
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
946 PM EDT WED AUG 2 2017
MDC029-035-030156-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-170803T0200Z/
Queen Anne's MD-Kent MD-
946 PM EDT WED AUG 2 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S AND
CENTRAL KENT COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.
LAT...LON 3916 7614 3922 7610 3921 7596 3917 7579
3900 7593 3908 7609 3912 7611
TIME...MOT...LOC 0144Z 292DEG 21KT 3906 7593
$$
poThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:38 PM EDT | Special Weather Statement | PHI | Kent | 37 min |
| Aug 3, 5:33 PM EDT | Areal Flood Advisory | PHI | Caroline | 4 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2017Every severe thunderstorm warning in 2017
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.