Alert archive / Maine / Tornado Warnings in 2020

Tornado Warning 2, NWS Gray, ME

July 11, 2020Cumberland County, Oxford County, Maine

NWS Gray, ME issued this tornado warning at Jul 11, 2020, 3:44 PM EDT for Cumberland County, Oxford County, Maine. It was in force for 20 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: Jul 11, 2020, 3:44 PM EDT (19:44 UTC)
Expired: Jul 11, 2020, 4:04 PM EDT
In force: 20 min
Issued by: NWS Gray, ME
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Cumberland County, ME, Oxford County, ME

The radar

The Portland,ME radar (KGYX), 34 km from the middle of the area, began a volume at 19:48 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
Jul 11, 3:46 PM EDT	TORNADO	4 Wsw Naples, ME	END POINT OF TORNADO THAT BEGAN ON BARKER POND. FOR MORE DETAILED INFORMATION SEE THE PUBLIC INFORMATION STATEMENT. TIME ESTIMATED FROM RADAR.
Jul 11, 3:47 PM EDT	FUNNEL CLOUD	4 Wsw Naples, ME

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

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 7.7 hours before the alert went out and 34 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: 9 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 556 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

968 
WFUS51 KGYX 111944
TORGYX
MEC005-017-112015-
/O.NEW.KGYX.TO.W.0002.200711T1944Z-200711T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Gray ME
344 PM EDT Sat Jul 11 2020

The National Weather Service in Gray Maine has issued a

* Tornado Warning for...
  Southern Oxford County in western Maine...
  Northwestern Cumberland County in southwestern Maine...

* Until 415 PM EDT.
    
* At 343 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Naples, moving northeast at 25 mph.

  HAZARD...Tornado and quarter size hail.

  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.

* This dangerous storm will be near...
  Naples around 400 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Sebago, Harrison and Otisfield.

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.

If on or near Long Lake, get away from the water and move to safe 
shelter immediately. A waterspout may develop quickly. If you can 
hear thunder, you are close enough to be struck by lightning. Severe 
thunderstorms can produce large capsizing waves, even on small 
bodies of water. Move into dock and seek safe shelter now! Do not be 
caught on the water in a thunderstorm.

&&

LAT...LON 4392 7071 4394 7074 4406 7061 4401 7055
TIME...MOT...LOC 1943Z 222DEG 23KT 4394 7070 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Hanes

1 follow-up statement

152 
WWUS51 KGYX 112004
SVSGYX

Severe Weather Statement
National Weather Service Gray ME
404 PM EDT Sat Jul 11 2020

MEC005-017-112014-
/O.CAN.KGYX.TO.W.0002.000000T0000Z-200711T2015Z/
Oxford ME-Cumberland ME-
404 PM EDT Sat Jul 11 2020

...THE TORNADO WARNING FOR SOUTHERN OXFORD AND NORTHWESTERN
CUMBERLAND COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4392 7071 4394 7074 4406 7061 4401 7055
TIME...MOT...LOC 2003Z 222DEG 23KT 4404 7057 

$$

Hanes

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 4:31 AM EDT	Areal Flood Advisory	GYX	Cumberland, Oxford, York	97 min
Jul 11, 3:20 PM EDT	Severe Thunderstorm Warning	GYX	Cumberland, Oxford	40 min
Jul 11, 7:02 PM EDT	Dense Fog Advisory	GYX	Knox, Lincoln, Sagadahoc, Waldo	14 hr

Nearby

Tornado Warnings in Maine, 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.