Alert archive / Maine / Tornado Warnings in 2021

Tornado Warning 2, NWS Gray, ME

June 19, 2021Knox County, Waldo County, Maine

NWS Gray, ME issued this tornado warning at Jun 19, 2021, 5:02 PM EDT for Knox County, Waldo County, Maine. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 19, 2021, 5:02 PM EDT (21:02 UTC)
Expired
Jun 19, 2021, 5:30 PM EDT
In force
28 min
Issued by
NWS Gray, ME
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Knox County, ME, Waldo County, ME

The radar

The Portland,ME radar (KGYX), 101 km from the middle of the area, began a volume at 21:02 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.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.0 hours before the alert went out and 102 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.

357 
WFUS51 KGYX 192102
TORGYX
MEC013-027-192130-
/O.NEW.KGYX.TO.W.0002.210619T2102Z-210619T2130Z/

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

The National Weather Service in Gray Maine has issued a

* Tornado Warning for...
  North central Knox County in south central Maine...
  South central Waldo County in south central Maine...

* Until 530 PM EDT.
    
* At 502 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Camden, moving east at 35 mph.

  HAZARD...Tornado and golf ball 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 and Lincolnville around 510 PM EDT.
  Islesboro around 520 PM EDT.

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

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 4426 6921 4431 6917 4428 6892 4418 6896
TIME...MOT...LOC 2102Z 286DEG 30KT 4427 6912 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Ekster
2 follow-up statements
081 
WWUS51 KGYX 192116
SVSGYX

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

MEC013-027-192130-
/O.CON.KGYX.TO.W.0002.000000T0000Z-210619T2130Z/
Knox ME-Waldo ME-
516 PM EDT Sat Jun 19 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
NORTHEASTERN KNOX AND SOUTH CENTRAL WALDO COUNTIES...
    
At 514 PM EDT, a severe thunderstorm capable of producing a tornado 
was located near Lincolnville, moving east at 35 mph. The tornadic 
portion of the storm has just moved off land and is now moving over 
the water toward Isleboro.

HAZARD...Tornado and golf ball 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.

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 4422 6895 4421 6895 4424 6908 4430 6905
      4428 6892
TIME...MOT...LOC 2114Z 286DEG 30KT 4424 6898 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
284 
WWUS51 KGYX 192125
SVSGYX

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

MEC013-027-192134-
/O.EXP.KGYX.TO.W.0002.000000T0000Z-210619T2130Z/
Knox ME-Waldo ME-
525 PM EDT Sat Jun 19 2021

...THE TORNADO WARNING FOR NORTHEASTERN KNOX AND SOUTH CENTRAL WALDO
COUNTIES WILL EXPIRE AT 530 PM EDT...
        
The storm which prompted the tornado warning has moved out of the 
area. Therefore, the warning will be allowed to expire.

LAT...LON 4422 6895 4421 6895 4424 6908 4430 6905
      4428 6892
TIME...MOT...LOC 2124Z 286DEG 30KT 4422 6887 

$$

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, 4:42 PM EDTTornado WarningGYXKnox, Waldo33 min
Jun 19, 4:55 PM EDTSpecial Marine WarningGYX65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.