Alert archive / Delaware / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 160, NWS Philadelphia/Mount Holly

October 27, 2003Kent County, New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 27, 2003, 2:39 PM EST for Kent County, New Castle County, Delaware. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 27, 2003, 2:39 PM EST (19:39 UTC)
Expired
Oct 27, 2003, 3:15 PM EST
In force
36 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Kent County, DE, New Castle County, DE

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.7 hours before the alert went out and 48 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 2003-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLLFCEL10008507005003002001001 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 2003-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897Sfc1 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
23 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
178 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 271939 CCA
SVRPHI
DEC001-003-272015-

BULLETIN - EAS ACTIVATION REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
234 PM EST MON OCT 27 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN KENT COUNTY IN CENTRAL DELAWARE.
  SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE.

* UNTIL 315 PM EST.

* AT 229 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM... 7 MILES WEST OF CLAYTON...MOVING NORTHEAST
  AT 35 MPH.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

$$
LAT...LON 3947 7579 3924 7575 3932 7553 3955 7559

EBERWINE(COR FOR STORM MOTION  THNX LWX)

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 27, 2:34 PM ESTSevere Thunderstorm WarningPHIKent, New Castle41 min
Oct 27, 3:59 PM ESTSevere Thunderstorm WarningPHISussex46 min

Nearby

Severe Thunderstorm Warnings in Delaware, 2003Every severe thunderstorm warning in 2003

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.