Alert archive / Maryland / Tornado Warnings in 2019

Tornado Warning 30, NWS Philadelphia/Mount Holly

October 31, 20194 counties in Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at Oct 31, 2019, 11:10 PM EDT for 4 counties in Maryland. It was in force for 35 min. 2 reports 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: Oct 31, 2019, 11:10 PM EDT (03:10 UTC)
Expired: Oct 31, 2019, 11:45 PM EDT
In force: 35 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

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

The radar

The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 03:10 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

Time	Report	Where	Remark
Oct 31, 11:11 PM EDT	TSTM WND DMG	4 Wsw Chester, MD	DOWNED UTILITY NEAR THE INTERSECTION OF STATE HIGHWAY 802 AND ROMANCOKE ROAD. TIME ESTIMATED FROM RADAR.
Oct 31, 11:11 PM EDT	TSTM WND DMG	4 Wsw Chester, MD	DOWNED UTILITY NEAR THE INTERSECTION OF STATE HIGHWAY 802 AND ROMANCOKE ROAD. TIME ESTIMATED FROM RADAR.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Oct 31, 7:56 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.2 hours before the alert went out and 101 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: 529 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 827 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 623 m²/s²
0-3 km storm-relative helicity: 752 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 9.8

Open this sounding in Storm Lab

The text

As transmitted.

271 
WFUS51 KPHI 010310
TORPHI
MDC011-029-035-041-010345-
/O.NEW.KPHI.TO.W.0030.191101T0310Z-191101T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
1110 PM EDT Thu Oct 31 2019

The National Weather Service in Mount Holly NJ has issued a

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

* Until 1145 PM EDT.
    
* At 1109 PM EDT, a severe thunderstorm capable of producing a
  tornado was located near Chester, or near Severn River, moving east
  at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Centerville, Centreville, Ridgely, Church Hill, Grasonville, Starr,
  Stevensville, Jumptown, Chester, Overton, Starkey Corner, Wye
  Mills, Carville, Hope, Queenstown, Stevensville South and Dominion.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3901 7633 3902 7630 3898 7628 3898 7620
      3900 7617 3903 7624 3906 7623 3918 7598
      3894 7587 3891 7620 3897 7625 3892 7626
      3894 7628 3891 7630 3896 7631 3891 7632
      3890 7637
TIME...MOT...LOC 0309Z 251DEG 45KT 3895 7636 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Robertson

1 follow-up statement

922 
WWUS51 KPHI 010325
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1125 PM EDT Thu Oct 31 2019

MDC029-010335-
/O.CAN.KPHI.TO.W.0030.000000T0000Z-191101T0345Z/
Kent MD-
1125 PM EDT Thu Oct 31 2019

...THE TORNADO WARNING FOR SOUTHWESTERN KENT COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
eastern and northeastern Maryland.

LAT...LON 3891 7617 3903 7617 3908 7594 3894 7587
      3891 7614
TIME...MOT...LOC 0325Z 262DEG 44KT 3897 7611 

$$

MDC011-035-041-010345-
/O.CON.KPHI.TO.W.0030.000000T0000Z-191101T0345Z/
Talbot MD-Queen Anne's MD-Caroline MD-
1125 PM EDT Thu Oct 31 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR NORTH
CENTRAL TALBOT...SOUTH CENTRAL QUEEN ANNE'S AND CENTRAL CAROLINE
COUNTIES...
    
At 1125 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Wye Mills, or near Centerville, moving east at 50
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Centerville, Centreville, Ridgely, Jumptown, Wye Mills, Starr,
Carville, Hope and Queenstown.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3891 7617 3903 7617 3908 7594 3894 7587
      3891 7614
TIME...MOT...LOC 0325Z 262DEG 44KT 3897 7611 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Robertson

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 31, 9:35 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	55 min
Oct 31, 10:23 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	67 min
Oct 31, 10:47 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	73 min
Nov 1, 3:31 AM EDT	Freeze Watch	PHI	Cecil	6 hr
Nov 1, 9:12 AM EDT	Freeze Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	25 hr

Nearby

Tornado Warnings in Maryland, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.