Alert archive / Maryland / Tornado Warnings in 2010
Tornado Warning 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Aug 12, 2010, 8:37 AM EDT for Queen Anne's County, Talbot County, Maryland. It was in force for 23 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
- Aug 12, 2010, 8:37 AM EDT (12:37 UTC)
- Expired
- Aug 12, 2010, 9:00 AM EDT
- In force
- 23 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 12:40 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 |
|---|---|---|---|
| Aug 12, 8:39 AM EDT | TSTM WND GST 63 | Tilghman Island, MD |
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, 0.6 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
- 3000 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 657 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
554
WFUS51 KPHI 121237
TORPHI
MDC035-041-121300-
/O.NEW.KPHI.TO.W.0007.100812T1237Z-100812T1300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
837 AM EDT THU AUG 12 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN TALBOT COUNTY IN EASTERN MARYLAND...
EXTREME SOUTH CENTRAL QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 900 AM EDT
* AT 835 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TILGHMAN
ISLAND...OR 13 MILES WEST OF EASTON...MOVING SOUTHEAST AT 35 MPH.
* THE TORNADO WILL BE NEAR...
OXFORD BY 850 AM EDT...
6 MILES SOUTHWEST OF HAMBLETON BY 855 AM EDT...
TRAPPE BY 900 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3861 7609 3867 7622 3873 7625 3870 7627
3872 7631 3869 7631 3866 7635 3874 7635
3876 7640 3877 7638 3875 7635 3883 7631
3886 7626 3866 7595 3860 7598 3857 7606
TIME...MOT...LOC 1237Z 312DEG 29KT 3875 7629
$$
HAYES2 follow-up statements
272
WWUS51 KPHI 121248
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
848 AM EDT THU AUG 12 2010
MDC035-041-121300-
/O.CON.KPHI.TO.W.0007.000000T0000Z-100812T1300Z/
QUEEN ANNE'S MD-TALBOT MD-
848 AM EDT THU AUG 12 2010
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 AM EDT FOR
SOUTHWESTERN TALBOT AND EXTREME SOUTHWESTERN QUEEN ANNE'S COUNTIES...
AT 845 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 6 MILES WEST OF
OXFORD...OR 12 MILES WEST OF EASTON...MOVING SOUTHEAST AT 30 MPH.
THE TORNADO WILL BE NEAR...
OXFORD BY 855 AM EDT...
6 MILES WEST OF TRAPPE BY 900 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3883 7625 3864 7599 3858 7607 3861 7609
3867 7622 3873 7625 3870 7627 3872 7631
3869 7631 3872 7635 3873 7635
TIME...MOT...LOC 1249Z 314DEG 27KT 3869 7624
$$
HAYES545
WWUS51 KPHI 121257
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
857 AM EDT THU AUG 12 2010
MDC035-041-121307-
/O.EXP.KPHI.TO.W.0007.000000T0000Z-100812T1300Z/
QUEEN ANNE'S MD-TALBOT MD-
857 AM EDT THU AUG 12 2010
...THE TORNADO WARNING FOR SOUTHWESTERN TALBOT AND EXTREME SOUTH
CENTRAL QUEEN ANNE'S COUNTIES WILL EXPIRE AT 900 AM EDT...
LAT...LON 3883 7625 3864 7599 3858 7607 3861 7609
3867 7622 3873 7625 3870 7627 3872 7631
3869 7631 3872 7635 3873 7635
TIME...MOT...LOC 1257Z 314DEG 27KT 3865 7619
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 7:13 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's | 62 min |
| Aug 12, 7:35 AM EDT | Special Weather Statement | PHI | Kent | 55 min |
| Aug 12, 7:56 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 2 hr |
| Aug 12, 8:24 AM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 66 min |
| Aug 12, 8:31 AM EDT | Special Weather Statement | PHI | Cecil, Queen Anne's | 59 min |
Nearby
Tornado Warnings in Maryland, 2010Every tornado warning in 2010Tornadoes in 2010
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.