Alert archive / Delaware / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 52, NWS Philadelphia/Mount Holly

June 28, 2005Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2005, 2:14 PM EDT for Sussex County, Delaware. It was in force for 61 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 28, 2005, 2:14 PM EDT (18:14 UTC)
Expired
Jun 28, 2005, 3:15 PM EDT
In force
61 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Sussex County, DE

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.2 hours before the alert went out and 82 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, Wallops Is Stn, VA at 12:00Z on 2005-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2146 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, Wallops Is Stn, VA at 12:00Z on 2005-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
2146 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
33 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 281816
SVRPHI
DEC005-281915-
/O.NEW.KPHI.SV.W.0052.050628T1814Z-050628T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
214 PM EDT TUE JUN 28 2005

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SUSSEX COUNTY IN SOUTHERN DELAWARE

* UNTIL 315 PM EDT

* AT 210 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A DEVELOPING SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL 
  UP TO PENNY SIZE AND DAMAGING WINDS TO 60 MPH.
  THIS STORM WAS LOCATED NEAR LONG NECK AND MOVING NORTHEAST 
  AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  REHOBOTH BEACH BY 305 PM EDT
  LEWES BY 315 PM EDT

TORRENTIAL DOWNPOURS WILL ALSO ACCOMPANY THIS STORM. SEEK SHELTER
IMMEDIATELY. 

IF ON THE INLETS...GET OUT OF THE WATER AND MOVE
INDOORS OF INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DONT BE CAUGHT ON THE WATER IN A THUNDERSTORM

LAT...LON 3857 7527 3851 7516 3873 7493 3882 7519

$$

TFG
1 follow-up statement
000 
WWUS51 KPHI 281851
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
249 PM EDT TUE JUN 28 2005

DEC005-281915-
/O.CON.KPHI.SV.W.0052.000000T0000Z-050628T1915Z/
SUSSEX DE-
249 PM EDT TUE JUN 28 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 315 PM EDT FOR EASTERN
SUSSEX COUNTY...

AT 248 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS TO
60 MPH.  THIS STORM WAS LOCATED ABOUT 5 MILES WEST OF DEWEY BEACH...
MOVING NORTHEAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HENLOPEN ACRES...REHOBOTH BEACH...DEWEY BEACH AND LEWES BY 300 PM
  EDT

IN ADDITION TO PENNY SIZE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LASTLY A FLASH FLOOD WARNING IS ALSO IN AFFECT FOR THIS AREA. DOPPLER RADAR
HOURLY STORM TOTAL ESTIMATES HAVE EXCEEDED 4 INCHES IN THE LEWES AND 
REHOBOTH HUNDRED.

LAT...LON 3868 7521 3864 7507 3873 7493 3882 7519

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 2:37 PM EDTFlash Flood WarningPHISussex113 min
Jun 28, 3:36 PM EDTFlash Flood WarningPHINew Castle3 hr
Jun 28, 3:42 PM EDTSevere Thunderstorm WarningPHISussex33 min
Jun 28, 3:47 PM EDTSevere Thunderstorm WarningPHISussex28 min
Jun 28, 3:58 PM EDTSevere Thunderstorm WarningPHIKent, New Castle62 min
Jun 28, 4:18 PM EDTSevere Thunderstorm WarningPHISussex42 min
Jun 28, 4:28 PM EDTFlash Flood WarningPHISussex3 hr

Nearby

Severe Thunderstorm Warnings in Delaware, 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.