Alert archive / Maryland / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 69, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2010, 9:12 PM EDT for 4 counties in Maryland. It was in force for 18 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
- Jun 22, 2010, 9:12 PM EDT (01:12 UTC)
- Expired
- Jun 22, 2010, 9:30 PM EDT
- In force
- 18 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), 65 km from the middle of the area, began a volume at 01:11 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, 1.2 hours before the alert went out and 106 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
- 1520 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1696 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
745
WUUS51 KPHI 230112
SVRPHI
MDC011-029-035-041-230130-
/O.NEW.KPHI.SV.W.0069.100623T0112Z-100623T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
912 PM EDT TUE JUN 22 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN CAROLINE COUNTY IN EASTERN MARYLAND...
NORTHEASTERN TALBOT COUNTY IN EASTERN MARYLAND...
SOUTHWESTERN KENT COUNTY IN NORTHEAST MARYLAND...
QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
THIS INCLUDES THE CITY OF CENTERVILLE...
* UNTIL 930 PM EDT
* AT 907 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM OLD TOWN TO CENTERVILLE TO GRASONVILLE...OR ALONG A LINE
EXTENDING FROM 8 MILES NORTHWEST OF CENTERVILLE TO CENTERVILLE TO
12 MILES SOUTHWEST OF CENTERVILLE...AND MOVING EAST AT 30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
CHURCH HILL...STARKEY CORNER...STARR AND HOPE AROUND 920 PM EDT...
WYE MILLS AND SKIPTON AROUND 925 PM EDT...
OAKLAND...JUMPTOWN...QUEEN ANNE AND GOLDSBORO AROUND 930 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 3902 7614 3920 7624 3919 7577 3898 7576
3889 7592 3889 7621 3893 7621 3894 7624
3890 7624 3893 7628 3890 7629 3891 7631
3889 7632 3890 7637 3891 7637
TIME...MOT...LOC 0112Z 270DEG 28KT 3913 7608 3902 7602
3894 7620
$$
DRAG1 follow-up statement
461
WWUS51 KPHI 230121
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
921 PM EDT TUE JUN 22 2010
MDC011-029-035-041-230130-
/O.CON.KPHI.SV.W.0069.000000T0000Z-100623T0130Z/
CAROLINE MD-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
921 PM EDT TUE JUN 22 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR NORTHEASTERN TALBOT...CENTRAL QUEEN ANNE'S...SOUTH CENTRAL KENT
AND NORTHERN CAROLINE COUNTIES...
AT 916 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM STARKEY CORNER TO HOPE TO
GRASONVILLE...OR ALONG A LINE EXTENDING FROM 6 MILES NORTH OF
CENTERVILLE TO CENTERVILLE TO 9 MILES SOUTHWEST OF CENTERVILLE...
MOVING EAST AT 30 MPH.
THE WIND LOOKS PARTICULARLY STRONG NEAR CENTREVILLE... CARVILLE
AND STARKEY CORNER MARYLAND...HEADING EAST.
SEVERE THUNDERSTORMS WILL BE NEAR...
WYE MILLS AND SKIPTON BY 925 PM EDT...
OAKLAND...JUMPTOWN...BARCLAY AND QUEEN ANNE BY 930 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 3902 7614 3914 7617 3919 7577 3898 7576
3889 7592 3889 7621 3893 7621 3894 7624
3890 7624 3893 7628 3890 7629 3891 7631
3889 7632 3890 7637 3891 7637
TIME...MOT...LOC 0120Z 270DEG 28KT 3913 7600 3902 7594
3894 7612
$$
DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 8:00 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 30 min |
| Jun 22, 8:29 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 46 min |
| Jun 22, 9:33 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 27 min |
| Jun 22, 9:39 PM EDT | Special Weather Statement | PHI | Caroline | 66 min |
| Jun 22, 9:46 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 59 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2010Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.