Alert archive / Maryland / Tornado Warnings in 2017

Tornado Warning 6, NWS Philadelphia/Mount Holly

July 15, 2017Kent County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at Jul 15, 2017, 11:35 AM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 25 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
Jul 15, 2017, 11:35 AM EDT (15:35 UTC)
Expired
Jul 15, 2017, 12:00 PM EDT
In force
25 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Observed
Hail
0.0 in

Counties Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 15:38 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
Jul 15, 11:40 AM EDTFUNNEL CLOUDStevensville, MDSEVERAL REPORTS OF A FUNNEL CLOUD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 3.6 hours before the alert went out and 99 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, Washington/Dulle, VA at 12:00Z on 2017-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, Washington/Dulle, VA at 12:00Z on 2017-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
8 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
1309 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

433 
WFUS51 KPHI 151535
TORPHI
MDC029-035-041-151600-
/O.NEW.KPHI.TO.W.0006.170715T1535Z-170715T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
1135 AM EDT SAT JUL 15 2017

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  North central Talbot County in eastern Maryland...
  Southwestern Queen Anne's County in northeastern Maryland...
  Southwestern Kent County in northeastern Maryland...

* Until noon EDT

* At 1135 AM EDT, a confirmed waterspout was located just offshore
  over Stevensville, or 7 miles southeast of Gibson Island, moving
  southeast at 20 mph.

  HAZARD...Tornado. 

  SOURCE...Weather spotters confirmed waterspout moving onshore. 

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

* This tornado will be near...
  Chester around 1145 AM EDT. 
  Overton around 1150 AM EDT. 
  Grasonville around 1155 AM EDT. 
  Wye Mills around 1200 PM EDT. 

Other locations impacted by this tornado include Queenstown, Dominion
and Stevensville South.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3904 7631 3898 7628 3900 7617 3903 7624
      3912 7625 3903 7598 3880 7617 3897 7625
      3890 7625 3894 7628 3889 7629 3890 7629
      3896 7631 3891 7632 3893 7636
TIME...MOT...LOC 1535Z 302DEG 17KT 3902 7632 

TORNADO...OBSERVED
HAIL...0.00IN

$$

SFJ
2 follow-up statements
698 
WWUS51 KPHI 151549
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1149 AM EDT SAT JUL 15 2017

MDC041-151558-
/O.CAN.KPHI.TO.W.0006.000000T0000Z-170715T1600Z/
Talbot MD-
1149 AM EDT SAT JUL 15 2017

...THE TORNADO WARNING FOR NORTH CENTRAL TALBOT COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning is not expected 
to move into Talbot County. Therefore, the warning has been 
cancelled.

LAT...LON 3904 7631 3898 7628 3900 7617 3903 7624
      3912 7625 3905 7604 3887 7620 3897 7625
      3890 7625 3894 7628 3892 7629 3896 7631
      3891 7632 3893 7636
TIME...MOT...LOC 1548Z 290DEG 8KT 3899 7629 

$$

MDC029-035-151600-
/O.CON.KPHI.TO.W.0006.000000T0000Z-170715T1600Z/
Queen Anne's MD-Kent MD-
1149 AM EDT SAT JUL 15 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
SOUTHWESTERN QUEEN ANNE'S AND SOUTHWESTERN KENT COUNTIES...
    
At 1148 AM EDT, a confirmed waterspout was located just offshore over
Stevensville, or 9 miles east of Severn River, moving east at 10 mph.

HAZARD...TORNADO. 

SOURCE...Weather spotters confirmed waterspout moving onshore. 

IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

This tornado will be near...
  Grasonville and Overton around 1200 PM EDT. 

Other locations impacted by this tornado include Queenstown, Dominion
and Stevensville South.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3904 7631 3898 7628 3900 7617 3903 7624
      3912 7625 3905 7604 3887 7620 3897 7625
      3890 7625 3894 7628 3892 7629 3896 7631
      3891 7632 3893 7636
TIME...MOT...LOC 1548Z 290DEG 8KT 3899 7629 

TORNADO...OBSERVED
HAIL...0.00IN

$$

SFJ
219 
WWUS51 KPHI 151600
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1200 PM EDT SAT JUL 15 2017

MDC029-035-151610-
/O.EXP.KPHI.TO.W.0006.000000T0000Z-170715T1600Z/
Queen Anne's MD-Kent MD-
1200 PM EDT SAT JUL 15 2017

...THE TORNADO WARNING FOR SOUTHWESTERN QUEEN ANNE'S AND SOUTHWESTERN
KENT COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 3904 7631 3898 7628 3900 7617 3903 7624
      3912 7625 3905 7604 3887 7620 3897 7625
      3890 7625 3894 7628 3892 7629 3896 7631
      3891 7632 3893 7636
TIME...MOT...LOC 1600Z 302DEG 17KT 3896 7624 

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 8:26 PM EDTAreal Flood AdvisoryPHICaroline, Queen Anne's, Talbot3 hr
Jul 14, 9:55 PM EDTSpecial Weather StatementPHICecil50 min
Jul 15, 12:06 PM EDTSpecial Weather StatementPHIQueen Anne's24 min

Nearby

Tornado Warnings in Maryland, 2017Every tornado warning in 2017Tornadoes in 2017

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.