Alert archive / Delaware / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly

June 6, 2005New Castle County, Delaware; Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 6, 2005, 7:27 PM EDT for New Castle County, Delaware; Salem County, New Jersey. It was in force for 48 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
Jun 6, 2005, 7:27 PM EDT (23:27 UTC)
Expired
Jun 6, 2005, 8:15 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

Counties New Castle County, DE, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 87 km from the middle of the area, began a volume at 23:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 1:55 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.5 hours before the alert went out and 45 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.

Skew-T log-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2005-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 477 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2005-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
477 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1115 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KPHI 062327
SVRPHI
DEC003-NJC033-070015-
/O.NEW.KPHI.SV.W.0037.050606T2327Z-050607T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
727 PM EDT MON JUN 6 2005

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NEW CASTLE COUNTY IN NORTHERN DELAWARE
  THIS INCLUDES THE CITIES OF...WILMINGTON...NEWARK
  WESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 815 PM EDT

* AT 724 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 6
  MILES SOUTHWEST OF NEWARK...AND MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DELAWARE CITY...WILMINGTON MANOR...NEWPORT AND STANTON BY 735 PM
  EDT
  PENNSVILLE...NEW CASTLE AND WILMINGTON BY 740 PM EDT
  SALEM...CARNEYS POINT AND BELLEFONTE BY 745 PM EDT

LAT...LON 3973 7577 3935 7576 3938 7554 3960 7524
      3981 7557

$$

KRUZDLO

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 7:36 PM EDTSevere Thunderstorm WarningPHIKent54 min
Jun 6, 2:52 PM EDTSevere Thunderstorm WarningPHIWarren53 min
Jun 6, 2:55 PM EDTSevere Thunderstorm WarningPHISussex65 min
Jun 6, 3:18 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren57 min
Jun 6, 3:50 PM EDTFlash Flood WarningPHIWarren3 hr
Jun 6, 7:08 PM EDTSevere Thunderstorm WarningPHIOcean67 min
Jun 6, 7:55 PM EDTSpecial Marine WarningPHI95 min

Nearby

Severe Thunderstorm Warnings in Delaware, 2005Severe Thunderstorm Warnings in New Jersey, 2005Every severe thunderstorm warning in 2005

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.