Alert archive / Maryland / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 192, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 14, 2012, 3:01 PM EDT for Cecil County, Kent County, Queen Anne's County, Maryland; Kent County, New Castle County, Delaware. It was in force for 38 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
- Aug 14, 2012, 3:01 PM EDT (19:01 UTC)
- Expired
- Aug 14, 2012, 3:39 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, New Castle County, DE, Cecil County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 19:01 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 |
|---|---|---|---|
| Aug 14, 3:05 PM EDT | HAIL 0.5 | Townsend, DE |
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, 7.0 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
- 1166 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 258 m²/s²
- 0-3 km storm-relative helicity
- 256 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.9
The text
As transmitted, in the capitals the NWS used until 2016.
730
WUUS51 KPHI 141901
SVRPHI
DEC001-003-MDC015-029-035-142015-
/O.NEW.KPHI.SV.W.0192.120814T1901Z-120814T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
301 PM EDT TUE AUG 14 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN KENT COUNTY IN CENTRAL DELAWARE...
SOUTHEASTERN CECIL COUNTY IN NORTHEAST MARYLAND...
NORTHEASTERN KENT COUNTY IN NORTHEAST MARYLAND...
NORTHEASTERN QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
* UNTIL 415 PM EDT
* AT 255 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 NEAR DELANEY CORNER...OR 15
MILES NORTHWEST OF DOVER...AND MOVING NORTH AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
DELANEY CORNER AND MASSEY AROUND 305 PM EDT...
GREEN SPRING AROUND 320 PM EDT...
SASSAFRAS AROUND 325 PM EDT...
WARWICK AROUND 335 PM EDT...
MIDDLETOWN AND BOHEMIAS MILLS AROUND 350 PM EDT...
MOUNT PLEASANT AROUND 410 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 3955 7580 3949 7557 3946 7558 3942 7553
3940 7552 3916 7569 3922 7591
TIME...MOT...LOC 1900Z 200DEG 12KT 3928 7576
$$
KRUZDLO1 follow-up statement
838
WWUS51 KPHI 141939
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
339 PM EDT TUE AUG 14 2012
DEC001-003-MDC015-029-035-141948-
/O.CAN.KPHI.SV.W.0192.000000T0000Z-120814T2015Z/
NEW CASTLE DE-CECIL MD-KENT MD-KENT DE-QUEEN ANNE'S MD-
339 PM EDT TUE AUG 14 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S...
NORTHWESTERN KENT...NORTHEASTERN KENT...SOUTHEASTERN CECIL AND
SOUTHERN NEW CASTLE COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM HAS LOST IT'S INTENSITY. IT IS NO LONGER
SEVERE. THE WARNING HAS BEEN CANCELLED.
LAT...LON 3955 7580 3949 7557 3946 7558 3942 7553
3940 7552 3916 7569 3922 7591
TIME...MOT...LOC 1938Z 200DEG 12KT 3940 7570
$$
KRUZDLOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:42 AM EDT | Special Weather Statement | PHI | Kent | 63 min |
| Aug 14, 8:06 AM EDT | Special Weather Statement | PHI | Cecil | 84 min |
| Aug 14, 2:02 PM EDT | Special Weather Statement | PHI | Queen Anne's | 58 min |
| Aug 14, 2:28 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's | 2 hr |
| Aug 14, 9:22 AM EDT | Severe Thunderstorm Warning | PHI | New Castle | 38 min |
| Aug 14, 12:49 PM EDT | Special Weather Statement | PHI | Sussex | 56 min |
| Aug 14, 2:13 PM EDT | Areal Flood Advisory | PHI | Kent | 79 min |
| Aug 14, 3:22 PM EDT | Special Weather Statement | PHI | New Castle | 53 min |
| Aug 14, 4:54 PM EDT | Special Weather Statement | PHI | Kent | 66 min |
| Aug 14, 6:44 PM EDT | Special Weather Statement | PHI | Sussex | 61 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.