Alert archive / Delaware / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 31, NWS Philadelphia/Mount Holly

May 15, 2006New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 15, 2006, 6:17 PM EDT for New Castle County, Delaware. It was in force for 43 min. 2 reports 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
May 15, 2006, 6:17 PM EDT (22:17 UTC)
Expired
May 15, 2006, 7:00 PM EDT
In force
43 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 100 km from the middle of the area, began a volume at 22:19 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

TimeReportWhereRemark
May 15, 6:25 PM EDTHAIL 0.752 Sw Wilmington, DE
May 15, 6:35 PM EDTHAIL 0.75Wilmington, 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, 10.3 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 2006-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°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 2006-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
312 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 152219
SVRPHI
DEC003-152300-
/O.NEW.KPHI.SV.W.0031.060515T2217Z-060515T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
617 PM EDT MON MAY 15 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 700 PM EDT

* AT 615 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM NEAR NEWARK...AND MOVING EAST AT 25 MPH.
  
  HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH ARE        
  POSSIBLE WITH THIS STORM

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DELAWARE CITY AND NEWPORT BY 625 PM EDT
  NEW CASTLE...WILMINGTON MANOR AND ELSMERE BY 630 PM EDT
  WILMINGTON AND TALLEYVILLE BY 635 PM EDT
  BELLEFONTE BY 640 PM EDT

LAT...LON 3969 7579 3959 7578 3955 7559 3978 7548
      3983 7554 3980 7571

$$

NIERENBERG

Nearby

Severe Thunderstorm Warnings in Delaware, 2006Every severe thunderstorm warning in 2006

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.