Alert archive / Maryland / Tornado Warnings in 2008

Tornado Warning 2, NWS Philadelphia/Mount Holly

April 28, 2008Caroline County, Queen Anne's County, Maryland; Kent County, Delaware

NWS Philadelphia/Mount Holly issued this tornado warning at Apr 28, 2008, 4:37 PM EDT for Caroline County, Queen Anne's County, Maryland; Kent County, Delaware. It was in force for 23 min. 1 report 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
Apr 28, 2008, 4:37 PM EDT (20:37 UTC)
Expired
Apr 28, 2008, 5:00 PM EDT
In force
23 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

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

The radar

The Dover AFB radar (KDOX), 41 km from the middle of the area, began a volume at 20:38 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
Apr 28, 4:38 PM EDTTSTM WND DMGMarydel, MDWIRES AND SOME TREES DOWN.

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, 8.6 hours before the alert went out and 51 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 2008-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLEL10008507005003002001001 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 2008-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 224 square meters per square second.19395878Sfc1 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
4 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
412 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
224 m²/s²
0-3 km storm-relative helicity
293 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 
WFUS51 KPHI 282037
TORPHI
DEC001-MDC011-035-282100-
/O.NEW.KPHI.TO.W.0002.080428T2037Z-080428T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
437 PM EDT MON APR 28 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL KENT COUNTY IN CENTRAL DELAWARE...
  NORTHEASTERN CAROLINE COUNTY IN EASTERN MARYLAND...
  EXTREME EAST CENTRAL QUEEN ANNES COUNTY IN NORTHEAST MARYLAND...

* UNTIL 500 PM EDT

* AT 433 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  SOUTHWEST OF HARTLY...OR 16 MILES WEST OF DOVER...MOVING EAST AT 33
  MPH.

* THE TORNADO WILL BE NEAR...
  HARTLY BY 445 PM EDT...
  CAMDEN...CHESWOLD AND WOODSIDE BY 455 PM EDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS 
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. THIS 
CIRCULATION IS TIGHTENING INCREASING THE LIKELIHOOD THAT A TORNADO
CAN FORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO 
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS 
STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY 
AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY 
OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3928 7558 3904 7552 3908 7579 3911 7582
TIME...MOT...LOC 2037Z 252DEG 28KT 3910 7576

$$

TFG
1 follow-up statement
000 
WWUS51 KPHI 282045
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
445 PM EDT MON APR 28 2008

MDC011-035-282055-
/O.CAN.KPHI.TO.W.0002.000000T0000Z-080428T2100Z/
CAROLINE MD-QUEEN ANNES MD-
445 PM EDT MON APR 28 2008

...THE TORNADO WARNING FOR EXTREME EAST CENTRAL QUEEN ANNES AND
NORTHEASTERN CAROLINE COUNTIES IS CANCELLED...

THE POTENTIALLY TORNADIC THUNDERSTORM HAS MOVED EAST OF THE AREA.

LAT...LON 3928 7558 3904 7552 3909 7571 3914 7573
TIME...MOT...LOC 2045Z 252DEG 26KT 3912 7569

$$

DEC001-282100-
/O.CON.KPHI.TO.W.0002.000000T0000Z-080428T2100Z/
KENT DE-
445 PM EDT MON APR 28 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR CENTRAL
KENT COUNTY...

AT 442 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 8 MILES WEST OF
WYOMING...OR 11 MILES WEST OF DOVER...MOVING EAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  WOODSIDE BY 455 PM EDT...
  WYOMING...CAMDEN...CHESWOLD AND 6 MILES NORTH OF WOODSIDE EAST BY
  500 PM EDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3928 7558 3904 7552 3909 7571 3914 7573
TIME...MOT...LOC 2045Z 252DEG 26KT 3912 7569

$$

 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:25 PM EDTSevere Thunderstorm WarningPHICecil, Kent, Queen Anne's65 min
Apr 28, 3:58 PM EDTSevere Thunderstorm WarningPHICaroline, Talbot62 min
Apr 28, 4:19 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's56 min
Apr 28, 5:22 PM EDTAreal Flood AdvisoryPHICecil113 min

Nearby

Tornado Warnings in Maryland, 2008Tornado Warnings in Delaware, 2008Every tornado warning in 2008Tornadoes in 2008

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.