Alert archive / Maryland / Tornado Warnings in 2020

Tornado Warning 33, NWS Philadelphia/Mount Holly

November 30, 2020Caroline County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at Nov 30, 2020, 3:11 PM EST for Caroline County, Queen Anne's County, Maryland. It was in force for 17 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: Nov 30, 2020, 3:11 PM EST (20:11 UTC)
Expired: Nov 30, 2020, 3:28 PM EST
In force: 17 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

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

The radar

The Dover AFB radar (KDOX), 45 km from the middle of the area, began a volume at 20:11 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
Nov 30, 3:13 PM EST	TORNADO	3 Wnw Henderson, MD	A TORNADO TOUCHED DOWN ALONG MARYLAND STATE ROUTE 313 AT 3:13 PM JUST SOUTH OF THE CAROLINE-QUEEN ANNE’S COUNTY BORDER. DAMAGE WAS SPARSE IN THIS AREA, BUT A VELOCITY COUPLET WAS FORMED AROUND THIS LOCATION WHEN VIEWED BY THE NEARBY NEXRAD KDOX IN DOVER DELAWA
Nov 30, 3:17 PM EST	TSTM WND DMG	2 Nnw Henderson, MD	DOWNED TREE AND WIRES NEAR SHULTS 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
Nov 30, 1:07 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.2 hours before the alert went out and 134 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: 2 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 524 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 326 m²/s²
0-3 km storm-relative helicity: 630 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

290 
WFUS51 KPHI 302011
TORPHI
MDC011-035-302045-
/O.NEW.KPHI.TO.W.0033.201130T2011Z-201130T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
311 PM EST Mon Nov 30 2020

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  East central Queen Anne's County in northeastern Maryland...
  Northeastern Caroline County in eastern Maryland...

* Until 345 PM EST.
    
* At 311 PM EST, a severe thunderstorm capable of producing a tornado
  was located near Goldsboro, or 10 miles east of Centerville, moving
  northeast at 40 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...
  Goldsboro, Henderson, Marydel and Templeville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

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 3903 7594 3912 7586 3918 7575 3917 7575
      3906 7574 3899 7589
TIME...MOT...LOC 2011Z 229DEG 34KT 3905 7586 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Iovino

1 follow-up statement

747 
WWUS51 KPHI 302028 RRA
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
328 PM EST Mon Nov 30 2020

MDC011-035-302037-
/O.CAN.KPHI.TO.W.0033.000000T0000Z-201130T2045Z/
Queen Anne's MD-Caroline MD-
328 PM EST Mon Nov 30 2020

...THE TORNADO WARNING FOR EAST CENTRAL QUEEN ANNE'S AND NORTHEASTERN
CAROLINE COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of Maryland. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM EST for central
Delaware...and eastern and northeastern Maryland.

LAT...LON 3903 7594 3912 7586 3918 7575 3917 7575
      3906 7574 3899 7589
TIME...MOT...LOC 2025Z 229DEG 34KT 3915 7571 

$$

Iovino

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 2:48 PM EST	Areal Flood Warning	PHI	Kent	8 hr
Nov 30, 3:04 PM EST	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	56 min

Nearby

Tornado Warnings in Maryland, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.