Alert archive / Delaware / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 111, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2012, 3:10 PM EDT for New Castle County, Delaware; Salem County, New Jersey. It was in force for 50 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
- Jul 19, 2012, 3:10 PM EDT (19:10 UTC)
- Expired
- Jul 19, 2012, 4:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties New Castle County, DE, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 74 km from the middle of the area, began a volume at 19:12 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 47 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
- 137 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
053
WUUS51 KPHI 191910
SVRPHI
DEC003-NJC033-192000-
/O.NEW.KPHI.SV.W.0111.120719T1910Z-120719T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 PM EDT THU JUL 19 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
THIS INCLUDES THE CITY OF MIDDLETOWN...
SOUTHWESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 400 PM EDT
* AT 308 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 PORT PENN...OR 8 MILES
NORTHEAST OF MIDDLETOWN...AND MOVING SOUTHEAST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
PORT PENN AROUND 315 PM EDT...
HOPE CREEK AND HANCOCKS BRIDGE AROUND 335 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO STRONG WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING IS
OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! REMEMBER...IF
YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.
HEAVY RAIN WILL OCCUR WITH THESE STORMS AND CAUSE LOW-LYING AND
POOR DRAINAGE FLOODING.
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 3963 7560 3960 7559 3964 7556 3946 7538
3946 7540 3944 7541 3941 7546 3943 7547
3946 7555 3950 7556 3946 7558 3942 7553
3938 7551 3933 7562 3950 7578 3955 7578
TIME...MOT...LOC 1910Z 323DEG 11KT 3952 7560
$$
MPD1 follow-up statement
572
WWUS51 KPHI 191941
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
341 PM EDT THU JUL 19 2012
DEC003-191948-
/O.CAN.KPHI.SV.W.0111.000000T0000Z-120719T2000Z/
NEW CASTLE DE-
341 PM EDT THU JUL 19 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NEW CASTLE COUNTY IS
CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3946 7538 3946 7540 3944 7541 3941 7546
3943 7547 3946 7555 3950 7556 3952 7554
3955 7554 3957 7552 3960 7556 3964 7556
TIME...MOT...LOC 1938Z 323DEG 11KT 3945 7553
$$
NJC033-192000-
/O.CON.KPHI.SV.W.0111.000000T0000Z-120719T2000Z/
SALEM NJ-
341 PM EDT THU JUL 19 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHWESTERN SALEM COUNTY...
AT 333 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A STRONG THUNDERSTORM WITH FREQUENT AND DANGEROUS CLOUD TO
GROUND LIGHTNING NEAR HOPE CREEK AND MOVING SOUTHEAST ALONG THE
SHORE LINE OF THE MOUTH OF THE DELAWARE RIVER AND UPPER DELAWARE BAY
AT 15 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
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 3946 7538 3946 7540 3944 7541 3941 7546
3943 7547 3946 7555 3950 7556 3952 7554
3955 7554 3957 7552 3960 7556 3964 7556
TIME...MOT...LOC 1938Z 323DEG 11KT 3945 7553
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:08 PM EDT | Areal Flood Advisory | PHI | New Castle | 112 min |
| Jul 19, 2:39 PM EDT | Special Weather Statement | PHI | New Castle | 66 min |
| Jul 19, 3:05 PM EDT | Areal Flood Advisory | PHI | New Castle | 62 min |
| Jul 19, 4:56 PM EDT | Special Weather Statement | PHI | Sussex | 64 min |
| Jul 18, 8:08 PM EDT | Special Weather Statement | PHI | Atlantic | 22 min |
| Jul 19, 3:04 PM EDT | Small Craft Advisory | PHI | 59 hr | |
| Jul 19, 3:16 PM EDT | Special Marine Warning | PHI | 30 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2012Severe Thunderstorm Warnings in New Jersey, 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.