Alert archive / Maryland / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly

May 12, 2002Caroline County, Kent County, Queen Anne's County, Maryland; Kent County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 12, 2002, 8:07 PM EDT for Caroline County, Kent County, Queen Anne's County, Maryland; Kent County, Delaware. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 12, 2002, 8:07 PM EDT (00:07 UTC)
Expired: May 12, 2002, 8:45 PM EDT
In force: 38 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

Counties Kent County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD

What was reported inside it

Time	Report	Where	Remark
May 12, 8:09 PM EDT	Thunderstorm Wind 74 M	Dover Afb, DE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 12, 5:15 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.1 hours before the alert went out and 132 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1672 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1115 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 130007
SVRPHI
DEC001-MDC011-029-035-130045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
806 PM EDT SUN MAY 12 2002

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KENT COUNTY IN CENTRAL DELAWARE.
  NORTHERN CAROLINE COUNTY IN EASTERN MARYLAND.
  SOUTHWESTERN KENT COUNTY IN NORTHEAST MARYLAND.
  NORTHEASTERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND.

* UNTIL 845 PM EDT.

* AT 802 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS... ALONG A LINE EXTENDING FROM 2 MILES
  NORTHEAST OF CHESWOLD TO 4 MILES SOUTHWEST OF CHURCH HILL...MOVING
  SOUTHEAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  GOLDSBORO...CAMDEN AT 815 PM.
  WOODSIDE...VIOLA...RISING SUN AT 820 PM.
  BOWERS AT 825 PM.
  FREDERICA AT 830 PM.
  HARRINGTON AT 835 PM.

RADAR INDICATES THAT WINDS COULD GUST PAST 50 MPH. THESE ARE 
DANGEROUS STORMS. TAKE NECESSARY ACTIONS TO PROTECT YOURSELF.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM SUNDAY
EVENING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 900 PM SUNDAY EVENING FOR EASTERN
PENNSYLVANIA.

$$

LAT...LON 3927 7576 3915 7618 3885 7570 3896 7538
          3923 7541

JWH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 4:02 PM EDT	Tornado Warning	PHI	Cecil, Kent	43 min
May 13, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	65 min
May 12, 10:44 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	16 min
May 13, 4:27 PM EDT	Tornado Warning	PHI	New Castle	43 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2002 Severe Thunderstorm Warnings in Delaware, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.