Alert archive / Maryland / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 114, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2011, 1:05 AM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland. It was in force for 55 min. 1 report 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 22, 2011, 1:05 AM EDT (05:05 UTC)
- Expired
- Jun 22, 2011, 2:00 AM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Caroline County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 63 km from the middle of the area, began a volume at 05:08 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 22, 1:56 AM EDT | TSTM WND DMG | 2 Nw Preston, MD | NUMEROUS TREES DOWN... OUTSIDE OF PRESTON. |
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 00:00Z, 5.1 hours before the alert went out and 108 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
- 3316 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 856 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
284
WUUS51 KPHI 220505
SVRPHI
MDC011-035-041-220600-
/O.NEW.KPHI.SV.W.0114.110622T0505Z-110622T0600Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
105 AM EDT WED JUN 22 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CAROLINE COUNTY IN EASTERN MARYLAND...
TALBOT COUNTY IN EASTERN MARYLAND...
THIS INCLUDES THE CITY OF EASTON...
SOUTHWESTERN QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 200 AM EDT
* AT 102 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM TALBOT TO TRAPPE...OR ALONG A
LINE EXTENDING FROM 12 MILES WEST OF EASTON TO 10 MILES SOUTH OF
EASTON...AND MOVING EAST AT 15 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
ST. MICHAELS AROUND 115 AM EDT...
TRAPPE AROUND 125 AM EDT...
COPPERVILLE AND HAMBLETON AROUND 130 AM EDT...
EASTON AROUND 145 AM EDT...
WINDYHILL AROUND 150 AM EDT...
CHOPTANK AROUND 155 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 3873 7625 3871 7626 3877 7635 3885 7629
3888 7632 3884 7638 3891 7637 3893 7629
3888 7632 3885 7628 3887 7625 3882 7621
3889 7621 3893 7627 3891 7622 3894 7622
3902 7574 3866 7572 3869 7590 3856 7605
TIME...MOT...LOC 0506Z 273DEG 11KT 3882 7627 3863 7610
$$
HAYES3 follow-up statements
350
WWUS51 KPHI 220524
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
124 AM EDT WED JUN 22 2011
MDC011-035-041-220600-
/O.CON.KPHI.SV.W.0114.000000T0000Z-110622T0600Z/
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
124 AM EDT WED JUN 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM EDT
FOR TALBOT...SOUTHWESTERN QUEEN ANNE'S AND CAROLINE COUNTIES...
AT 119 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM ST. MICHAELS TO TRAPPE...OR
ALONG A LINE EXTENDING FROM 9 MILES WEST OF EASTON TO 10 MILES SOUTH
OF EASTON...MOVING EAST AT 15 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
COPPERVILLE AND HAMBLETON BY 130 AM EDT...
EASTON BY 145 AM EDT...
WINDYHILL BY 150 AM EDT...
9 MILES SOUTH OF WYE MILLS BY 155 AM EDT...
TANYARD...PRESTON...MATTHEWS AND CHOPTANK BY 200 AM EDT...
LAT...LON 3873 7625 3871 7626 3877 7635 3885 7629
3888 7632 3884 7638 3891 7637 3893 7629
3888 7632 3885 7628 3887 7625 3882 7621
3889 7621 3893 7627 3891 7622 3894 7622
3902 7574 3866 7572 3869 7590 3856 7605
TIME...MOT...LOC 0524Z 273DEG 11KT 3882 7620 3863 7603
$$
HAYES879
WWUS51 KPHI 220550
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
150 AM EDT WED JUN 22 2011
MDC011-035-041-220600-
/O.CON.KPHI.SV.W.0114.000000T0000Z-110622T0600Z/
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
150 AM EDT WED JUN 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM EDT
FOR SOUTHEASTERN TALBOT...EXTREME SOUTH CENTRAL QUEEN ANNE'S AND
SOUTHERN CAROLINE COUNTIES...
AT 149 AM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM EASTON TO
CHOPTANK...OR ALONG A LINE EXTENDING FROM EASTON TO 12 MILES
SOUTHEAST OF EASTON...MOVING EAST AT 15 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
CHOPTANK BY 155 AM EDT...
TANYARD...PRESTON...MATTHEWS AND 6 MILES SOUTHWEST OF HARMONY BY
200 AM EDT...
LAT...LON 3870 7590 3857 7605 3880 7615 3892 7574
3871 7572 3867 7572
TIME...MOT...LOC 0550Z 273DEG 11KT 3882 7610 3863 7593
$$
HAYES295
WWUS51 KPHI 220600
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
200 AM EDT WED JUN 22 2011
MDC011-035-041-220610-
/O.EXP.KPHI.SV.W.0114.000000T0000Z-110622T0600Z/
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
200 AM EDT WED JUN 22 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TALBOT...EXTREME
SOUTH CENTRAL QUEEN ANNE'S AND SOUTHERN CAROLINE COUNTIES HAS
EXPIRED...
LAT...LON 3870 7590 3857 7605 3880 7615 3892 7574
3871 7572 3867 7572
TIME...MOT...LOC 0550Z 273DEG 11KT 3882 7610 3863 7593
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 11:57 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 63 min |
| Jun 22, 12:40 AM EDT | Special Weather Statement | PHI | Caroline | 65 min |
| Jun 22, 12:55 AM EDT | Special Weather Statement | PHI | Cecil | 65 min |
| Jun 22, 1:29 AM EDT | Special Weather Statement | PHI | Cecil | 61 min |
| Jun 22, 1:47 AM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 105 min |
| Jun 22, 2:02 AM EDT | Special Weather Statement | PHI | Caroline | 58 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2011Every severe thunderstorm warning in 2011
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.