Alert archive / Maine / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Caribou, ME

June 29, 2012Hancock County, Washington County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jun 29, 2012, 9:43 PM EDT for Hancock County, Washington County, Maine. It was in force for 47 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 29, 2012, 9:43 PM EDT (01:43 UTC)
Expired
Jun 29, 2012, 10:30 PM EDT
In force
47 min
Issued by
NWS Caribou, ME
Area
Storm-based polygon

Counties Hancock County, ME, Washington County, ME

The radar

The Caribou radar (KCBW), 171 km from the middle of the area, began a volume at 01:44 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.

The nearest sounding before it

Gray, ME (KGYX), launched 00:00Z, 1.7 hours before the alert went out and 213 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 00:00Z on 2012-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2262 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2012-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 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
2262 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
3.3
Supercell composite
21.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

573 
WUUS51 KCAR 300143
SVRCAR
MEC009-029-300230-
/O.NEW.KCAR.SV.W.0021.120630T0143Z-120630T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CARIBOU ME
943 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN CARIBOU MAINE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL HANCOCK COUNTY IN SOUTHEAST MAINE...
  SOUTHWESTERN WASHINGTON COUNTY IN SOUTHEAST MAINE...
  THIS INCLUDES THE CITY OF CHERRYFIELD...

* UNTIL 1030 PM EDT

* AT 939 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES WEST OF STEUBEN...OR 9 MILES EAST OF 
  ELLSWORTH...AND MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  STEUBEN...MILLBRIDGE...HARRINGTON AND JONESPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

PLEASE REPORT SEVERE WEATHER BY CONTACTING YOUR NEAREST LAW
ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL
WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4457 6739 4459 6748 4455 6743 4454 6752
      4449 6750 4443 6759 4443 6763 4448 6762
      4444 6770 4450 6778 4447 6777 4447 6782
      4439 6789 4442 6816 4447 6820 4446 6834
      4465 6821 4464 6735
TIME...MOT...LOC 0142Z 274DEG 31KT 4452 6821

$$

HEWITT
2 follow-up statements
877 
WWUS51 KCAR 300211
SVSCAR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CARIBOU ME
1011 PM EDT FRI JUN 29 2012

MEC009-029-300230-
/O.CON.KCAR.SV.W.0021.000000T0000Z-120630T0230Z/
WASHINGTON ME-HANCOCK ME-
1011 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR EAST CENTRAL HANCOCK AND SOUTHWESTERN WASHINGTON COUNTIES...

AT 1007 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR MILLBRIDGE...OR 7 MILES SOUTH OF CHERRYFIELD...MOVING
EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARRINGTON...ROQUE BLUFFS...JONESPORT AND BEALS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4457 6739 4459 6748 4455 6743 4454 6752
      4449 6750 4443 6759 4443 6763 4448 6762
      4444 6770 4450 6778 4447 6777 4447 6782
      4439 6789 4442 6816 4447 6820 4446 6834
      4465 6821 4464 6735
TIME...MOT...LOC 0211Z 274DEG 31KT 4450 6786

$$

HEWITT
101 
WWUS51 KCAR 300238
SVSCAR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CARIBOU ME
1038 PM EDT FRI JUN 29 2012

MEC009-029-300242-
/O.EXP.KCAR.SV.W.0021.000000T0000Z-120630T0230Z/
WASHINGTON ME-HANCOCK ME-
1038 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HANCOCK AND
SOUTHWESTERN WASHINGTON COUNTIES HAS EXPIRED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT 
OVER OPEN WATERS. 

LAT...LON 4457 6739 4459 6748 4455 6743 4454 6752
      4449 6750 4443 6759 4443 6763 4448 6762
      4444 6770 4450 6778 4447 6777 4447 6782
      4439 6789 4442 6816 4447 6820 4446 6834
      4465 6821 4464 6735
TIME...MOT...LOC 0211Z 274DEG 31KT 4450 6786

$$

HEWITT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:18 PM EDTSevere Thunderstorm WarningCARHancock, Penobscot, Washington42 min
Jun 29, 9:19 PM EDTSevere Thunderstorm WarningCARHancock, Washington26 min
Jun 30, 3:52 PM EDTSevere Thunderstorm WarningCARAroostook38 min
Jun 30, 4:40 PM EDTSevere Thunderstorm WarningCARAroostook, Piscataquis, Somerset65 min

Nearby

Severe Thunderstorm Warnings in Maine, 2012Every severe thunderstorm warning in 2012

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.