Alert archive / Maryland / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 91, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 13, 2010, 9:21 PM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 64 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
- Jul 13, 2010, 9:21 PM EDT (01:21 UTC)
- Expired
- Jul 13, 2010, 10:25 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 01:12 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, 1.4 hours before the alert went out and 102 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
- 260 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
540
WUUS51 KPHI 140121
SVRPHI
MDC029-035-041-140215-
/O.NEW.KPHI.SV.W.0091.100714T0121Z-100714T0225Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
921 PM EDT TUE JUL 13 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN 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 1015 PM EDT
* AT 918 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 7 MILES NORTHWEST OF TILGHMAN
ISLAND...OR 20 MILES WEST OF EASTON...AND MOVING NORTHEAST AT 30
TO 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
TALBOT AROUND 930 PM EDT...
CHESTER AROUND 940 PM EDT...
GRASONVILLE AROUND 945 PM EDT...
WYE MILLS AND OVERTON AROUND 950 PM EDT...
CENTERVILLE...CENTREVILLE AND STARR AROUND 1000 PM EDT...
CARVILLE AND HOPE AROUND 1005 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO SMALL 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 3875 7635 3887 7626 3882 7621 3883 7620
3894 7624 3890 7624 3893 7628 3884 7638
3903 7633 3900 7618 3903 7625 3912 7626
3925 7607 3910 7585 3897 7596 3887 7596
3871 7635 3877 7640
TIME...MOT...LOC 0117Z 236DEG 32KT 3882 7644
$$
RPW1 follow-up statement
503
WWUS51 KPHI 140201
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1001 PM EDT TUE JUL 13 2010
MDC029-035-041-140230-
/O.CON.KPHI.SV.W.0091.000000T0000Z-100714T0215Z/
KENT MD-QUEEN ANNE'S MD-TALBOT MD-
1001 PM EDT TUE JUL 13 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR NORTHEASTERN TALBOT...CENTRAL QUEEN ANNE'S AND SOUTHWESTERN KENT
COUNTIES...
AT 1000 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HOPE...OR 6 MILES EAST
OF CENTERVILLE...MOVING NORTHEAST AT 60 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL EASTERN QUEEN ANNE'S COUNTY AT 1010 PM EDT
IN ADDITION TO SMALL HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
LAT...LON 3884 7603 3893 7610 3897 7614 3900 7618
3912 7626 3925 7607 3910 7585 3897 7596
3887 7596
TIME...MOT...LOC 0200Z 234DEG 52KT 3906 7595
$$
RPWThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 9:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 64 min |
| Jul 13, 9:52 PM EDT | Special Weather Statement | PHI | Cecil | 68 min |
| Jul 14, 1:07 AM EDT | Special Weather Statement | PHI | Talbot | 83 min |
| Jul 14, 1:44 AM EDT | Special Weather Statement | PHI | Cecil, Kent | 61 min |
| Jul 14, 2:58 AM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's | 62 min |
| Jul 14, 10:15 AM EDT | Flash Flood Watch | PHI | Cecil | 9 hr |
| Jul 14, 12:52 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
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.