Alert archive / Maine / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 18, NWS Gray, ME

June 26, 2009Cumberland County, York County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Jun 26, 2009, 7:10 AM EDT for Cumberland County, York County, Maine. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 26, 2009, 7:10 AM EDT (11:10 UTC)
Expired
Jun 26, 2009, 7:35 AM EDT
In force
25 min
Issued by
NWS Gray, ME
Area
Storm-based polygon

Counties Cumberland County, ME, York County, ME

The radar

The Portland,ME radar (KGYX), 36 km from the middle of the area, began a volume at 11:13 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

Albany, NY (KALY), launched 00:00Z, 11.2 hours before the alert went out and 289 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, Albany, NY at 00:00Z on 2009-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2335 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2009-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.1939Sfc1 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
2335 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1100 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 3:33 AM EDT, 3 hours 37 minutes earlier.

Area forecast discussion, Jun 26, 3:33 AM EDT, 3 hours 37 minutes before
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Hazardous weather outlook, Jun 26, 3:12 AM EDT, 3 hours 58 minutes before
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In the hours before

Special weather statement, Jun 26, 1:19 AM EDT, 5 hours 51 minutes before
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Special weather statement, Jun 26, 1:24 AM EDT, 5 hours 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
124 AM EDT FRI JUN 26 2009

MEZ009-260600-
CENTRAL SOMERSET-
124 AM EDT FRI JUN 26 2009

...STRONG THUNDERSTORMS WILL IMPACT SOMERSET COUNTY THROUGH 200 AM
EDT...

AT 122 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES EAST OF BRASSUA...MOVING EAST
AT 15 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND
BRASSUA THROUGH 200 AM EDT. THIS STORM WILL ALSO AFFECT MOOSEHEAD
LAKE FROM SOUTH OF SEBOOMOOK TO NEAR MOOSEHEAD.

HAIL UP TO ONE HALF INCH IN DIAMETER...HEAVY DOWNPOURS...EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS TO 40 MPH CAN BE EXPECTED.
Special weather statement, Jun 26, 1:57 AM EDT, 5 hours 13 minutes before
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Special weather statement, Jun 26, 4:36 AM EDT, 2 hours 34 minutes before
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Special weather statement, Jun 26, 5:10 AM EDT, 2 hours before
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Special weather statement, Jun 26, 6:05 AM EDT, 1 hour 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 12:34 AM EDTSevere Thunderstorm WarningGYXFranklin, Oxford41 min
Jun 26, 6:22 AM EDTSevere Thunderstorm WarningGYXYork23 min
Jun 26, 6:34 AM EDTSpecial Marine WarningGYX56 min
Jun 26, 12:05 PM EDTSevere Thunderstorm WarningGYXSomerset55 min
Jun 26, 12:12 PM EDTSevere Thunderstorm WarningGYXFranklin, Oxford33 min
Jun 26, 12:41 PM EDTSevere Thunderstorm WarningGYXFranklin, Oxford49 min
Jun 26, 12:54 PM EDTSevere Thunderstorm WarningGYXSomerset51 min
Jun 26, 1:03 PM EDTSevere Thunderstorm WarningGYXOxford42 min
Jun 26, 1:34 PM EDTSevere Thunderstorm WarningGYXSomerset41 min
Jun 26, 1:41 PM EDTSevere Thunderstorm WarningGYXOxford49 min
Jun 26, 1:54 PM EDTSevere Thunderstorm WarningGYXOxford51 min
Jun 26, 2:14 PM EDTSevere Thunderstorm WarningGYXFranklin, Somerset46 min
Jun 26, 2:18 PM EDTFlash Flood WarningGYXSomerset3 hr
Jun 26, 2:27 PM EDTSevere Thunderstorm WarningGYXOxford48 min
Jun 26, 2:39 PM EDTSevere Thunderstorm WarningGYXYork41 min
Jun 26, 2:40 PM EDTSevere Thunderstorm WarningGYXFranklin50 min
Jun 26, 2:44 PM EDTSevere Thunderstorm WarningGYXOxford46 min
Jun 26, 2:48 PM EDTSevere Thunderstorm WarningGYXOxford42 min
Jun 26, 3:00 PM EDTSevere Thunderstorm WarningGYXYork38 min
Jun 26, 3:07 PM EDTAreal Flood AdvisoryGYXFranklin3 hr
Jun 26, 3:26 PM EDTSevere Thunderstorm WarningGYXFranklin, Oxford, Somerset64 min
Jun 26, 3:27 PM EDTFlash Flood WarningGYXFranklin3 hr
Jun 26, 3:28 PM EDTSevere Thunderstorm WarningGYXOxford47 min
Jun 26, 3:30 PM EDTSevere Thunderstorm WarningGYXOxford45 min
Jun 26, 3:44 PM EDTSevere Thunderstorm WarningGYXFranklin, Oxford46 min
Jun 26, 4:06 PM EDTSevere Thunderstorm WarningGYXFranklin, Kennebec, Somerset39 min
Jun 26, 4:44 PM EDTSevere Thunderstorm WarningGYXAndroscoggin, Franklin, Kennebec46 min
Jun 26, 4:50 PM EDTSevere Thunderstorm WarningGYXSomerset30 min
Jun 26, 1:21 PM EDTSevere Thunderstorm WarningGYXCarroll, Coos39 min
Jun 26, 1:49 PM EDTSevere Thunderstorm WarningGYXCoos56 min
Jun 26, 1:55 PM EDTSevere Thunderstorm WarningGYXCoos, Grafton40 min
Jun 26, 1:57 PM EDTSevere Thunderstorm WarningGYXCarroll, Coos63 min
Jun 26, 2:09 PM EDTSevere Thunderstorm WarningGYXBelknap, Merrimack, Rockingham, Strafford36 min
Jun 26, 2:27 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Strafford49 min
Jun 26, 4:08 PM EDTSevere Thunderstorm WarningGYXCoos52 min
Jun 26, 4:45 PM EDTSevere Thunderstorm WarningGYXCoos45 min

Nearby

Severe Thunderstorm Warnings in Maine, 2009Every severe thunderstorm warning in 2009

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.