Alert archive / Maryland / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 86, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2010, 3:10 PM EDT for 4 counties in Maryland. It was in force for 65 min. 2 reports 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 28, 2010, 3:10 PM EDT (19:10 UTC)
- Expired
- Jun 28, 2010, 4:15 PM EDT
- In force
- 65 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), 70 km from the middle of the area, began a volume at 19:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 28, 3:20 PM EDT | TSTM WND DMG | Stevensville, MD | SEVERAL TREES DOWN THROUGHOUT COUNTY. |
| Jun 28, 3:57 PM EDT | TSTM WND DMG | Denton, MD | WIRES DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 28, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 62 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
- 419 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 1443 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
854
WUUS51 KPHI 281910
SVRPHI
MDC011-029-035-041-282015-
/O.NEW.KPHI.SV.W.0086.100628T1910Z-100628T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 PM EDT MON JUN 28 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CAROLINE COUNTY IN EASTERN MARYLAND...
NORTHERN TALBOT COUNTY IN EASTERN MARYLAND...
THIS INCLUDES THE CITY OF EASTON...
SOUTHWESTERN KENT COUNTY IN NORTHEAST MARYLAND...
QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
THIS INCLUDES THE CITY OF CENTERVILLE...
* UNTIL 415 PM EDT
* AT 307 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 WEST OF STEVENSVILLE...
OR 21 MILES WEST OF CENTERVILLE...AND MOVING EAST AT 40 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
STEVENSVILLE AROUND 315 PM EDT...
CHESTER AROUND 320 PM EDT...
GRASONVILLE AND OVERTON AROUND 325 PM EDT...
WYE MILLS...SKIPTON...CENTERVILLE AND CENTREVILLE AROUND 335 PM
EDT...
STARR AROUND 340 PM EDT...
QUEEN ANNE AROUND 345 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE STRONGEST WINDS MIGHT OCCUR BEFORE THE HEAVY RAIN ARRIVES.
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.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
&&
LAT...LON 3896 7637 3905 7631 3900 7627 3900 7618
3903 7625 3914 7626 3921 7577 3871 7577
3877 7639 3879 7633 3887 7626 3882 7621
3883 7620 3894 7624 3890 7624 3893 7628
3884 7638 3885 7639
TIME...MOT...LOC 1910Z 269DEG 35KT 3896 7640
$$
TFG2 follow-up statements
452
WWUS51 KPHI 281937
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
337 PM EDT MON JUN 28 2010
MDC011-029-035-041-282015-
/O.CON.KPHI.SV.W.0086.000000T0000Z-100628T2015Z/
CAROLINE MD-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
337 PM EDT MON JUN 28 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHERN TALBOT...QUEEN ANNE'S...SOUTHWESTERN KENT AND CAROLINE
COUNTIES...
AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
TO ABOUT 60 MPH. THIS STORM WAS LOCATED NEAR GRASONVILLE...OR 9
MILES SOUTHWEST OF CENTERVILLE...MOVING EAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
STARR BY 345 PM EDT...
QUEEN ANNE...HOPE AND CARVILLE BY 350 PM EDT...
JUMPTOWN AND HILLSBORO BY 355 PM EDT...
OAKLAND AND RIDGELY BY 400 PM EDT...
GREENSBORO AND GOLDSBORO BY 405 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE TERMINAL DOPPLER RADAR FROM BALTIMORE IS SHOWING AROUND 60
MPH OF WIND IS CENTERED AROUND WYE MILL.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
&&
LAT...LON 3879 7633 3887 7626 3882 7621 3883 7620
3893 7621 3893 7622 3894 7623 3890 7624
3892 7627 3894 7623 3899 7625 3900 7618
3903 7625 3907 7623 3914 7626 3921 7577
3871 7577 3878 7638
TIME...MOT...LOC 1936Z 267DEG 31KT 3897 7613
$$
TFG153
WWUS51 KPHI 282002
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT MON JUN 28 2010
MDC029-282011-
/O.CAN.KPHI.SV.W.0086.000000T0000Z-100628T2015Z/
KENT MD-
402 PM EDT MON JUN 28 2010
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT COUNTY IS
CANCELLED...
THE SEVERE STORM IS APPROACHING THE DELAWARE STATE LINE AND HAS MOVED
OUT OF THE COUNTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
LAT...LON 3873 7590 3875 7593 3877 7596 3879 7599
3884 7601 3888 7604 3891 7608 3895 7607
3893 7607 3894 7608 3897 7598 3901 7595
3906 7594 3912 7591 3921 7577 3871 7577
TIME...MOT...LOC 2001Z 269DEG 34KT 3894 7582
$$
MDC011-035-041-282015-
/O.CON.KPHI.SV.W.0086.000000T0000Z-100628T2015Z/
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
402 PM EDT MON JUN 28 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN TALBOT...EAST CENTRAL QUEEN ANNE'S AND CAROLINE
COUNTIES...
AT 357 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR RIDGELY...OR 13 MILES SOUTHEAST OF CENTERVILLE...MOVING EAST AT
40 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS DOWNED TREES IN QUEEN ANNES COUNTY.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
&&
LAT...LON 3873 7590 3875 7593 3877 7596 3879 7599
3884 7601 3888 7604 3891 7608 3895 7607
3893 7607 3894 7608 3897 7598 3901 7595
3906 7594 3912 7591 3921 7577 3871 7577
TIME...MOT...LOC 2001Z 269DEG 34KT 3894 7582
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 4:33 AM EDT | Heat Advisory | PHI | Caroline, Queen Anne's, Talbot | 12 hr |
| Jun 28, 1:48 PM EDT | Special Weather Statement | PHI | Cecil, Kent, Queen Anne's | 87 min |
| Jun 28, 2:40 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 95 min |
| Jun 28, 3:07 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 83 min |
| Jun 28, 3:56 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 64 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.