Alert archive / Maryland / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 88, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2012, 10:15 PM EDT for Caroline County, Queen Anne's County, Maryland; Kent County, Delaware. It was in force for 25 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
- Jul 8, 2012, 10:15 PM EDT (02:15 UTC)
- Expired
- Jul 8, 2012, 10:40 PM EDT
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, Caroline County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 32 km from the middle of the area, began a volume at 02:14 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 |
|---|---|---|---|
| Jul 8, 10:25 PM EDT | TSTM WND DMG | 2 W Henderson, MD | A COUPLE OF TREES DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.3 hours before the alert went out and 124 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
- 4020 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1020 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 10.8
The text
As transmitted, in the capitals the NWS used until 2016.
236
WUUS51 KPHI 090215
SVRPHI
DEC001-MDC011-035-090315-
/O.NEW.KPHI.SV.W.0088.120709T0215Z-120709T0315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1015 PM EDT SUN JUL 8 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL KENT COUNTY IN CENTRAL DELAWARE...
NORTHERN CAROLINE COUNTY IN EASTERN MARYLAND...
EAST CENTRAL QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 1115 PM EDT
* AT 1011 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
HOPE...OR 8 MILES EAST OF CENTERVILLE...AND MOVING EAST AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
6 MILES NORTH OF GREENSBORO AROUND 1030 PM EDT...
GOLDSBORO AROUND 1035 PM EDT...
SANDTOWN AROUND 1045 PM EDT...
HAZLETTVILLE AROUND 1050 PM EDT...
VIOLA...WOODSIDE AND CAMDEN AROUND 1105 PM EDT...
RISING SUN AND 8 MILES NORTH OF HARRINGTON AROUND 1110 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO
GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3899 7599 3917 7597 3914 7540 3892 7542
3890 7548
TIME...MOT...LOC 0216Z 279DEG 18KT 3907 7589
$$
HAYES2 follow-up statements
350
WWUS51 KPHI 090230
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1030 PM EDT SUN JUL 8 2012
MDC035-090240-
/O.CAN.KPHI.SV.W.0088.000000T0000Z-120709T0315Z/
QUEEN ANNE'S MD-
1030 PM EDT SUN JUL 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL QUEEN ANNE'S
COUNTY IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS MOVED EAST OF THE AREA.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3897 7584 3912 7582 3913 7579 3914 7575
3916 7575 3914 7540 3892 7542 3892 7543
3890 7548
TIME...MOT...LOC 0230Z 279DEG 18KT 3906 7580
$$
DEC001-MDC011-090315-
/O.CON.KPHI.SV.W.0088.000000T0000Z-120709T0315Z/
KENT DE-CAROLINE MD-
1030 PM EDT SUN JUL 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR NORTHEASTERN CAROLINE AND CENTRAL KENT COUNTIES...
AT 1028 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR GOLDSBORO...OR 13 MILES EAST OF CENTERVILLE...MOVING
EAST AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
GOLDSBORO...HENDERSON AND MARYDEL BY 1035 PM EDT...
SANDTOWN BY 1045 PM EDT...
HAZLETTVILLE BY 1050 PM EDT...
VIOLA...FELTON AND WOODSIDE BY 1105 PM EDT...
WOODSIDE EAST BY 1110 PM EDT...
RIVERVIEW BY 1115 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3897 7584 3912 7582 3913 7579 3914 7575
3916 7575 3914 7540 3892 7542 3892 7543
3890 7548
TIME...MOT...LOC 0230Z 279DEG 18KT 3906 7580
$$
HAYES452
WWUS51 KPHI 090240
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1040 PM EDT SUN JUL 8 2012
DEC001-MDC011-090250-
/O.CAN.KPHI.SV.W.0088.000000T0000Z-120709T0315Z/
KENT DE-CAROLINE MD-
1040 PM EDT SUN JUL 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CAROLINE AND
CENTRAL KENT COUNTIES IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER
EXPECTED TO PRODUCE SEVERE WEATHER.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3897 7584 3912 7582 3913 7579 3914 7575
3916 7575 3914 7540 3892 7542 3892 7543
3890 7548
TIME...MOT...LOC 0240Z 279DEG 18KT 3905 7574
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 9:09 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's | 66 min |
| Jul 8, 9:22 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 53 min |
| Jul 8, 10:13 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 62 min |
| Jul 9, 5:20 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 hr |
| Jul 8, 8:30 PM EDT | Special Weather Statement | PHI | Sussex | 60 min |
| Jul 8, 8:52 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 53 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2012Severe Thunderstorm Warnings in Delaware, 2012Every severe thunderstorm warning in 2012
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.