Alert archive / Maine / Tornado Warnings in 2021

Tornado Warning 1, NWS Gray, ME

June 19, 2021Knox County, Waldo County, Maine

NWS Gray, ME issued this tornado warning at Jun 19, 2021, 4:42 PM EDT for Knox County, Waldo County, Maine. It was in force for 33 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
Jun 19, 2021, 4:42 PM EDT (20:42 UTC)
Expired
Jun 19, 2021, 5:15 PM EDT
In force
33 min
Issued by
NWS Gray, ME
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Knox County, ME, Waldo County, ME

The radar

The Portland,ME radar (KGYX), 90 km from the middle of the area, began a volume at 20:44 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
Jun 19, 5:00 PM EDTFUNNEL CLOUDHope, MEA FEW PHOTOS AND VIDEOS SEEN VIA SOCIAL MEDIA SHOWING LOW-HANGING AND ROTATING WALL CLOUD AND POSSIBLE FUNNEL CLOUDS NEAR AND JUST NORTH OF HOPE.

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, 8.7 hours before the alert went out and 90 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, Gray, ME at 12:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Gray, ME at 12:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

649 
WFUS51 KGYX 192042
TORGYX
MEC013-027-192115-
/O.NEW.KGYX.TO.W.0001.210619T2042Z-210619T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Gray ME
442 PM EDT Sat Jun 19 2021

The National Weather Service in Gray Maine has issued a

* Tornado Warning for...
  Northwestern Knox County in south central Maine...
  Southwestern Waldo County in south central Maine...

* Until 515 PM EDT.
    
* At 441 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Liberty, or 15 miles northwest of Camden, moving
  east at 25 mph.

  HAZARD...Tornado and half dollar 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...
  Camden, Lincolnville and Rockport around 515 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Washington, Hope, Appleton, Searsmont and Union.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4427 6941 4436 6937 4434 6906 4420 6915
TIME...MOT...LOC 2041Z 280DEG 20KT 4431 6934 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Ekster
2 follow-up statements
720 
WWUS51 KGYX 192052
SVSGYX

Severe Weather Statement
National Weather Service Gray ME
452 PM EDT Sat Jun 19 2021

MEC013-027-192115-
/O.CON.KGYX.TO.W.0001.000000T0000Z-210619T2115Z/
Knox ME-Waldo ME-
452 PM EDT Sat Jun 19 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR
NORTHWESTERN KNOX AND SOUTH CENTRAL WALDO COUNTIES...
    
At 452 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Liberty, or 11 miles northwest of Camden, moving
east at 25 mph.

HAZARD...Tornado and half dollar 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...
  Camden, Lincolnville and Rockport around 520 PM EDT.

Other locations impacted by this tornadic thunderstorm include Hope,
Appleton, Searsmont and Union.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4427 6931 4434 6927 4431 6908 4420 6915
TIME...MOT...LOC 2052Z 280DEG 20KT 4430 6925 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Ekster
750 
WWUS51 KGYX 192109
SVSGYX

Severe Weather Statement
National Weather Service Gray ME
509 PM EDT Sat Jun 19 2021

MEC013-027-192119-
/O.EXP.KGYX.TO.W.0001.000000T0000Z-210619T2115Z/
Knox ME-Waldo ME-
509 PM EDT Sat Jun 19 2021

...THE TORNADO WARNING FOR NORTHWESTERN KNOX AND SOUTH CENTRAL WALDO
COUNTIES WILL EXPIRE AT 515 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

Remember, a Tornado Warning still remains in effect a bit farther 
east.

LAT...LON 4427 6931 4434 6927 4431 6908 4420 6915
TIME...MOT...LOC 2109Z 280DEG 20KT 4429 6914 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 2:33 PM EDTSpecial Weather StatementGYXOxford27 min
Jun 19, 2:54 PM EDTSpecial Weather StatementGYXKennebec36 min
Jun 19, 3:00 PM EDTSpecial Weather StatementGYXCumberland30 min
Jun 19, 3:08 PM EDTSpecial Weather StatementGYXKennebec37 min
Jun 19, 3:13 PM EDTSevere Thunderstorm WarningGYXKennebec, Knox, Lincoln, Somerset, Waldo47 min
Jun 19, 3:36 PM EDTSpecial Weather StatementGYXCumberland, Sagadahoc24 min
Jun 19, 3:47 PM EDTSpecial Weather StatementGYXFranklin28 min
Jun 19, 3:56 PM EDTSevere Thunderstorm WarningGYXKnox, Waldo49 min
Jun 19, 3:58 PM EDTSpecial Marine WarningGYX62 min
Jun 19, 4:05 PM EDTSpecial Weather StatementGYXKennebec25 min
Jun 19, 4:17 PM EDTSpecial Weather StatementGYXKennebec28 min
Jun 19, 4:30 PM EDTSpecial Weather StatementGYXKennebec30 min
Jun 19, 4:32 PM EDTSpecial Weather StatementGYXWaldo28 min
Jun 19, 4:40 PM EDTSevere Thunderstorm WarningGYXKnox, Waldo50 min
Jun 19, 4:55 PM EDTSpecial Marine WarningGYX65 min
Jun 19, 5:02 PM EDTTornado WarningGYXKnox, Waldo28 min

Nearby

Tornado Warnings in Maine, 2021Every tornado warning in 2021Tornadoes in 2021

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.