Alert archive / Delaware / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 161, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 4, 2012, 3:31 PM EDT for Kent County, New Castle County, Delaware. It was in force for 28 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
- Aug 4, 2012, 3:31 PM EDT (19:31 UTC)
- Expired
- Aug 4, 2012, 3:59 PM EDT
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, New Castle County, DE
The radar
The Dover AFB radar (KDOX), 62 km from the middle of the area, began a volume at 19:34 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.5 hours before the alert went out and 161 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
- 1055 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
406
WUUS51 KPHI 041931
SVRPHI
DEC001-003-042015-
/O.NEW.KPHI.SV.W.0161.120804T1931Z-120804T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
331 PM EDT SAT AUG 4 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL KENT COUNTY IN CENTRAL DELAWARE...
SOUTHEASTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
* UNTIL 415 PM EDT
* AT 326 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
GREEN SPRING...OR 10 MILES SOUTHEAST OF MIDDLETOWN...AND MOVING
NORTH AT 5 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CHAMBERSVILLE AROUND 405 PM EDT...
TOWNSEND AROUND 415 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 3943 7569 3942 7553 3938 7551 3926 7553
3927 7571
TIME...MOT...LOC 1931Z 188DEG 2KT 3934 7561
$$
IOVINO1 follow-up statement
577
WWUS51 KPHI 041959
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
359 PM EDT SAT AUG 4 2012
DEC001-003-042009-
/O.CAN.KPHI.SV.W.0161.000000T0000Z-120804T2015Z/
NEW CASTLE DE-KENT DE-
359 PM EDT SAT AUG 4 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL KENT AND
SOUTHEASTERN NEW CASTLE COUNTIES IS CANCELLED...
THE STORM HAS WEAKENED AND THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3943 7569 3942 7553 3938 7551 3926 7553
3927 7571
TIME...MOT...LOC 1959Z 188DEG 2KT 3936 7561
$$
IOVINOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:18 PM EDT | Special Weather Statement | PHI | New Castle | 57 min |
| Aug 4, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 62 min |
| Aug 4, 2:43 PM EDT | Areal Flood Advisory | PHI | New Castle | 105 min |
| Aug 4, 3:31 PM EDT | Flash Flood Warning | PHI | New Castle | 57 min |
| Aug 4, 5:07 PM EDT | Special Weather Statement | PHI | Kent | 53 min |
Nearby
Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.