Alert archive / Maryland / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 113, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2017, 3:03 PM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland. It was in force for 42 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 22, 2017, 3:03 PM EDT (19:03 UTC)
- Expired
- Jul 22, 2017, 3:45 PM EDT
- In force
- 42 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Caroline County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 65 km from the middle of the area, began a volume at 19:05 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 22, 3:40 PM EDT | TSTM WND GST 48 | Easton, MD | |
| Jul 22, 3:43 PM EDT | TSTM WND DMG | Easton, MD | TREE DOWN. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.1 hours before the alert went out and 105 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
- 107 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
787
WUUS51 KPHI 221903
SVRPHI
MDC011-035-041-221945-
/O.NEW.KPHI.SV.W.0113.170722T1903Z-170722T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
303 PM EDT SAT JUL 22 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Talbot County in eastern Maryland...
Southwestern Queen Anne's County in northeastern Maryland...
Southwestern Caroline County in eastern Maryland...
* Until 345 PM EDT
* At 302 PM EDT, a severe thunderstorm was located over South River,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Easton, Talbot, Denton, Romancoke, Federalsburg, Ridgely, Trappe,
St. Michaels, Preston, Oxford, Queen Anne, Grasonville,
Copperville, Agner, Choptank, Windyhill, Tanyard, Harmony, Tilghman
Island and Stevensville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to 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 3886 7626 3886 7625 3879 7620 3879 7619
3894 7621 3897 7625 3891 7624 3893 7625
3894 7627 3884 7637 3902 7632 3893 7582
3868 7577 3868 7593 3857 7604 3876 7630
3867 7634 3876 7638
TIME...MOT...LOC 1902Z 283DEG 40KT 3888 7649
HAIL...<.75IN
WIND...60MPH
$$
JRK1 follow-up statement
208
WWUS51 KPHI 221928
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
328 PM EDT SAT JUL 22 2017
MDC011-035-041-221945-
/O.CON.KPHI.SV.W.0113.000000T0000Z-170722T1945Z/
Talbot MD-Queen Anne's MD-Caroline MD-
328 PM EDT SAT JUL 22 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR TALBOT...SOUTHWESTERN QUEEN ANNE'S AND SOUTHWESTERN CAROLINE
COUNTIES...
At 326 PM EDT, a severe thunderstorm was located over Talbot, or 12
miles northwest of Easton, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar and public indicated. This storm has a history of
producing wind damage in central Maryland. At 3 PM, a 58
mph wind gust was reported on the western side of the
Chesapeake Bay in Annapolis.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Easton, Talbot, Denton, Romancoke, Federalsburg, Trappe, St.
Michaels, Preston, Oxford, Queen Anne, Grasonville, Copperville,
Agner, Choptank, Windyhill, Tanyard, Harmony, Tilghman Island,
Skipton and Chester.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to damaging winds...frequent cloud to ground lightning
is occurring with this storm. Move indoors immediately.
Remember...if you can hear thunder...you are close enough to be
struck by lightning.
&&
LAT...LON 3899 7633 3889 7581 3868 7577 3868 7593
3857 7604 3876 7630 3867 7634 3876 7638
3886 7626 3886 7625 3879 7620 3879 7619
3894 7621 3896 7625 3891 7624 3893 7625
3894 7627 3884 7637
TIME...MOT...LOC 1926Z 288DEG 25KT 3884 7628
HAIL...<.75IN
WIND...60MPH
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 52 min |
| Jul 22, 4:30 PM EDT | Special Weather Statement | PHI | Wicomico | 30 min |
| Jul 22, 6:44 PM EDT | Special Weather Statement | PHI | Talbot | 76 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.