Alert archive / Maryland / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 206, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 1, 2012, 8:07 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 38 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
- Sep 1, 2012, 8:07 PM EDT (00:07 UTC)
- Expired
- Sep 1, 2012, 8:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 00:10 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, 0.1 hours before the alert went out and 103 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
- 2794 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
897
WUUS51 KPHI 020007
SVRPHI
MDC029-035-020045-
/O.NEW.KPHI.SV.W.0206.120902T0007Z-120902T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
807 PM EDT SAT SEP 1 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN KENT COUNTY IN NORTHEAST MARYLAND...
CENTRAL QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 845 PM EDT
* AT 806 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR ROCK HALL...OR 23 MILES
SOUTHEAST OF BALTIMORE...AND MOVING SOUTHEAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
6 MILES SOUTHWEST OF LANGFORD AROUND 815 PM EDT...
OLD TOWN AND OVERTON AROUND 820 PM EDT...
CENTREVILLE...STARKEY CORNER AND 7 MILES SOUTHWEST OF CHURCH HILL
AROUND 835 PM EDT...
CARVILLE AND 8 MILES NORTHEAST OF WYE MILLS AROUND 840 PM EDT...
HOPE AND STARR AROUND 845 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO
GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
IN ADDITION TO LARGE 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.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3904 7630 3902 7628 3905 7624 3917 7629
3924 7624 3914 7580 3894 7606 3894 7611
3888 7613 3898 7627 3899 7625 3898 7620
3901 7618 3900 7622 3903 7625 3901 7630
3904 7633
TIME...MOT...LOC 0007Z 297DEG 20KT 3913 7623
$$
TFG2 follow-up statements
017
WWUS51 KPHI 020027
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
827 PM EDT SAT SEP 1 2012
MDC029-035-020045-
/O.CON.KPHI.SV.W.0206.000000T0000Z-120902T0045Z/
KENT MD-QUEEN ANNE'S MD-
827 PM EDT SAT SEP 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTHERN QUEEN ANNE'S AND SOUTHWESTERN KENT COUNTIES...
AT 825 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CENTREVILLE...OR 30
MILES SOUTHEAST OF BALTIMORE...MOVING SOUTHEAST AT 25 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CENTREVILLE AND 6 MILES SOUTHWEST OF STARKEY CORNER BY 835 PM
EDT...
CARVILLE AND 6 MILES NORTHEAST OF WYE MILLS BY 840 PM EDT...
HOPE BY 845 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO DAMAGING WINDS...VERY FREQUENT CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY!
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3905 7624 3913 7624 3916 7615 3911 7587
3894 7606 3894 7611 3888 7613 3897 7622
3901 7618 3900 7622 3903 7625
TIME...MOT...LOC 0027Z 297DEG 20KT 3906 7612
$$
TFG928
WWUS51 KPHI 020044
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
844 PM EDT SAT SEP 1 2012
MDC029-035-020054-
/O.EXP.KPHI.SV.W.0206.000000T0000Z-120902T0045Z/
KENT MD-QUEEN ANNE'S MD-
844 PM EDT SAT SEP 1 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN QUEEN ANNE'S AND
SOUTHWESTERN KENT COUNTIES WILL EXPIRE AT 845 PM EDT...
THE THUNDERSTORM NO LONGER POSES A SEVERE THREAT, ALTHOUGH SOME
LIGHTNING AND HEAVY RAIN WILL CONTINUE IN QUEEN ANNE'S AND DOWNWIND
COUNTIES.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3905 7624 3913 7624 3916 7615 3911 7587
3894 7606 3894 7611 3888 7613 3897 7622
3901 7618 3900 7622 3903 7625
TIME...MOT...LOC 0044Z 297DEG 20KT 3902 7601
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 8:47 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 88 min |
| Sep 1, 9:27 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's, Talbot | 93 min |
| Sep 1, 10:34 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 86 min |
| Sep 1, 11:44 PM EDT | Special Weather Statement | PHI | Wicomico | 61 min |
| Sep 2, 12:40 PM EDT | Areal Flood Advisory | PHI | Cecil | 83 min |
| Sep 2, 3:17 PM EDT | Areal Flood Advisory | PHI | Caroline | 118 min |
| Sep 2, 3:57 PM EDT | Flash Flood Warning | PHI | Caroline | 2 hr |
| Sep 2, 6:33 PM EDT | Special Weather Statement | PHI | Kent | 117 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2012Every severe thunderstorm warning in 2012
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.