Alert archive / Maryland / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 47, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 4, 2007, 6:30 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 60 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 4, 2007, 6:30 PM EDT (22:30 UTC)
- Expired
- Jun 4, 2007, 7:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 22:29 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 4, 6:40 PM EDT | HAIL 0.75 | Rock Hall, MD | PENNY SIZE HAIL WAS REPORTED IN ROCK HALL BY LAW ENFORCEMENT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.5 hours before the alert went out and 37 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
- 19 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 497 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 042230
SVRPHI
MDC029-035-042330-
/O.NEW.KPHI.SV.W.0047.070604T2230Z-070604T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
630 PM EDT MON JUN 4 2007
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN KENT COUNTY IN NORTHEAST MARYLAND...
QUEEN ANNES COUNTY IN NORTHEAST MARYLAND...
* UNTIL 730 PM EDT
* AT 625 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS TO ABOUT
60 MPH. THIS STORM WAS LOCATED 6 MILES NORTH OF STEVENSVILLE...
AND MOVING EAST AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ROCK HALL BY 635 PM EDT...
6 MILES NORTH OF GRASONVILLE BY 645 PM EDT...
CENTREVILLE BY 655 PM EDT...
9 MILES SOUTH OF CHURCH HILL BY 700 PM EDT...
THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY
RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE
WATER IS CROSSING THE ROAD.
IN ADDITION TO 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 3923 7637 3900 7640 3891 7596 3922 7584
3927 7613
$$
TFG1 follow-up statement
000
WWUS51 KPHI 042302
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
700 PM EDT MON JUN 4 2007
MDC029-042310-
/O.CAN.KPHI.SV.W.0047.000000T0000Z-070604T2330Z/
KENT MD-
700 PM EDT MON JUN 4 2007
...THE SEVERE THUNDERSTORM WARNING FOR KENT COUNTY IS CANCELLED...
THE THUNDERSTORM HAS WEAKENED AND NO LONGER LOOKS CAPABLE OF PRODUCING
DAMAGING WINDS.
LAT...LON 3899 7628 3899 7616 3905 7618 3917 7603
3920 7605 3924 7601 3922 7585 3898 7604
3892 7616 3897 7616 3889 7620 3897 7625
3891 7624 3894 7629 3891 7629 3894 7631
3892 7635 3887 7633 3885 7638 3885 7638
$$
MDC035-042330-
/O.CON.KPHI.SV.W.0047.000000T0000Z-070604T2330Z/
QUEEN ANNES MD-
700 PM EDT MON JUN 4 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR QUEEN ANNES COUNTY...
AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS
TO ABOUT 60 MPH. THIS STORM WAS LOCATED NEAR CHURCH HILL...OR ABOUT
MOVING EAST AT 30 MPH.
A SECOND POSSIBLY SEVERE STORM WILL BE CROSSING THE SOUTHERN PART
OF KENT ISLAND BY 715 PM.
IN ADDITION TO THE 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 3899 7628 3899 7616 3905 7618 3917 7603
3920 7605 3924 7601 3922 7585 3898 7604
3892 7616 3897 7616 3889 7620 3897 7625
3891 7624 3894 7629 3891 7629 3894 7631
3892 7635 3887 7633 3885 7638 3885 7638
$$
TFGNearby
Severe Thunderstorm Warnings in Maryland, 2007Every severe thunderstorm warning in 2007
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.