Alert archive / Maryland / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 13, 2013, 4:37 PM EDT for 4 counties in Maryland. It was in force for 68 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
- Jun 13, 2013, 4:37 PM EDT (20:37 UTC)
- Expired
- Jun 13, 2013, 5:45 PM EDT
- In force
- 68 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 20:40 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 |
|---|---|---|---|
| Jun 13, 4:49 PM EDT | TSTM WND GST 68 | Stevensville, MD | |
| Jun 13, 5:08 PM EDT | TSTM WND DMG | Cloverfields, MD | KENT ISLAND HIGH SCHOOL SUFFERED ROOF DAMAGE AND FENCE DAMAGE |
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 |
|---|---|---|---|
| Jun 13, 12:19 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.6 hours before the alert went out and 54 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
- 416 J/kg
- Mixed-layer CIN
- -188 J/kg
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
813
WUUS51 KPHI 132037
SVRPHI
MDC011-029-035-041-132145-
/O.NEW.KPHI.SV.W.0026.130613T2037Z-130613T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
437 PM EDT THU JUN 13 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
KENT COUNTY IN NORTHEAST MARYLAND...
NORTHERN CAROLINE COUNTY IN EASTERN MARYLAND...
QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
NORTHERN TALBOT COUNTY IN EASTERN MARYLAND...
* UNTIL 545 PM EDT
* AT 432 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR ANNAPOLIS...MOVING EAST AT
55 MPH. THIS STORM IS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...
AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
STEVENSVILLE AND CHESTER AROUND 445 PM EDT...
GRASONVILLE AROUND 450 PM EDT...
OVERTON AND GRASONVILLE AROUND 455 PM EDT...
CENTREVILLE AND OLD TOWN AROUND 500 PM EDT...
CARVILLE AND STARKEY CORNER AROUND 505 PM EDT...
HOPE AND CHURCH HILL AROUND 510 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING WIND DAMAGE
ACROSS MARYLAND. DO NOT STAY OUTDOORS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR SOUTHERN DELAWARE AND NORTHEASTERN MARYLAND.
&&
LAT...LON 3904 7632 3905 7631 3899 7627 3900 7618
3902 7624 3914 7629 3932 7619 3938 7612
3938 7577 3885 7573 3882 7620 3885 7621
3882 7631 3883 7631 3886 7626 3885 7623
3893 7623 3894 7624 3890 7624 3883 7638
TIME...MOT...LOC 2036Z 261DEG 46KT 3901 7649
$$
NIERENBERG1 follow-up statement
275
WWUS51 KPHI 132134
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
534 PM EDT THU JUN 13 2013
MDC011-029-035-041-132141-
/O.CAN.KPHI.SV.W.0026.000000T0000Z-130613T2145Z/
KENT MD-CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
534 PM EDT THU JUN 13 2013
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TALBOT...QUEEN
ANNE'S...NORTHERN CAROLINE AND KENT COUNTIES IS CANCELLED...
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR SOUTHERN DELAWARE AND NORTHEASTERN MARYLAND.
LAT...LON 3904 7632 3905 7631 3899 7627 3900 7618
3902 7624 3914 7629 3932 7619 3938 7612
3938 7577 3885 7573 3882 7620 3885 7621
3882 7631 3883 7631 3886 7626 3885 7623
3893 7623 3894 7624 3890 7624 3883 7638
TIME...MOT...LOC 2131Z 261DEG 46KT 3912 7559
$$
NIERENBERGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 8:10 AM EDT | Special Weather Statement | PHI | Cecil, Kent | 50 min |
| Jun 13, 8:40 AM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 50 min |
| Jun 13, 9:18 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 57 min |
| Jun 13, 9:29 AM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 31 min |
| Jun 13, 9:39 AM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 51 min |
| Jun 13, 9:55 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 35 min |
| Jun 13, 10:24 AM EDT | Special Weather Statement | PHI | Caroline | 81 min |
| Jun 13, 5:04 PM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 4 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2013Every severe thunderstorm warning in 2013
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.