Alert archive / Maine / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 210, NWS Gray, ME

August 30, 2007Franklin County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Aug 30, 2007, 3:39 PM EDT for Franklin County, Maine. It was in force for 66 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
Aug 30, 2007, 3:39 PM EDT (19:39 UTC)
Expired
Aug 30, 2007, 4:45 PM EDT
In force
66 min
Issued by
NWS Gray, ME
Area
Counties, with a storm outline in the text

County Franklin County, ME

The radar

The Portland,ME radar (KGYX), 121 km from the middle of the area, began a volume at 19:38 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 30, 3:07 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 7.7 hours before the alert went out and 121 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 2007-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 106 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, Gray, ME at 12:00Z on 2007-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.193958Sfc1 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
106 J/kg
Mixed-layer CIN
-343 J/kg
Mixed-layer LCL
1254 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
54 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 Aug 30, 2:58 PM EDT, 41 minutes earlier.

Area forecast discussion, Aug 30, 2:58 PM EDT, 41 minutes before
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Hazardous weather outlook, Aug 30, 9:50 AM EDT, 5 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
950 AM EDT THU AUG 30 2007

MEZ007>009-012>014-NHZ001>007-311400-
NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN OXFORD-
SOUTHERN FRANKLIN-SOUTHERN SOMERSET-NORTHERN COOS-SOUTHERN COOS-
NORTHERN GRAFTON-NORTHERN CARROLL-SOUTHERN GRAFTON-SOUTHERN CARROLL-
SULLIVAN-
950 AM EDT THU AUG 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW
HAMPSHIRE AND NORTHERN NEW HAMPSHIRE.

.DAY ONE...TODAY AND TONIGHT

A FEW THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND HAIL LATER THIS
MORNING INTO THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED FOR THIS AFTERNOON.

ANZ150-MEZ018>028-NHZ008>010-013-014-311400-
STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM-INTERIOR YORK-
INTERIOR CUMBERLAND-ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO-
COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO-
MERRIMACK-BELKNAP-STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
950 AM EDT THU AUG 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW
HAMPSHIRE...SOUTHEASTERN NEW HAMPSHIRE AND THE COASTAL WATERS FROM
STONINGTON ME TO THE MERRIMACK RIVER MA.

.DAY ONE...TODAY AND TONIGHT

A THUNDERSTORM OR TWO MAY PRODUCE GUSTY WINDS AND SMALL HAIL LATER
THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.

HAYES

In the hours before

Special weather statement, Aug 30, 12:44 PM EDT, 2 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
1244 PM EDT THU AUG 30 2007

MEZ008-301730-
NORTHERN FRANKLIN-
1244 PM EDT THU AUG 30 2007

...STRONG THUNDERSTORMS WILL IMPACT FRANKLIN COUNTY THROUGH 130 PM
EDT...

AT 1244 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER SALEM. THIS STRONG THUNDERSTORM
WILL AFFECT AREAS IN AND AROUND SALEM AND KINGFIELD THROUGH 130 PM
EDT.

HAIL UP TO ONE HALF INCH IN DIAMETER...HEAVY DOWNPOURS...FREQUENT
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS TO 45 MPH CAN BE EXPECTED.

HAYES
Local storm report, Aug 30, 1:15 PM EDT, 2 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
115 PM EDT THU AUG 30 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1239 PM     TSTM WND DMG     3 S THE FORKS           45.29N 69.97W
08/30/2007                   SOMERSET           ME   PUBLIC

            LARGE TREE DOWN ACROSS ROUTE 201 3 MILES SOUTH OF THE
            WEST FORKS.

&&

KIRKA
Special weather statement, Aug 30, 2:18 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
218 PM EDT THU AUG 30 2007

NHZ002-003-301900-
NORTHERN GRAFTON-SOUTHERN COOS-
218 PM EDT THU AUG 30 2007

...STRONG THUNDERSTORMS WILL IMPACT GRAFTON COUNTY AND COOS COUNTY
THROUGH 300 PM EDT...

AT 218 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 8 MILES WEST OF LITTLETON...MOVING
EAST AT 30 MPH. THIS STRONG THUNDERSTORM WILL AFFECT  LITTLETON...
BETHLEHEM...WHITEFIELD...LANCASTER...JEFFERSON...YORK POND...
SHELBURNE...RANDOLPH...GORHAM AND BERLIN THROUGH 300 PM EDT.

HAIL UP TO ONE HALF INCH IN DIAMETER...HEAVY DOWNPOURS...FREQUENT
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS TO 45 MPH CAN BE EXPECTED.

HAYES
Special weather statement, Aug 30, 2:32 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
232 PM EDT THU AUG 30 2007

NHZ003-301915-
NORTHERN GRAFTON-
232 PM EDT THU AUG 30 2007

...STRONG THUNDERSTORMS WILL IMPACT GRAFTON COUNTY THROUGH 315 PM
EDT...

AT 232 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 6 MILES WEST OF WOODSVILLE...MOVING EAST
AT 30 MPH. THIS STRONG THUNDERSTORM WILL AFFECT  WOODSVILLE...
BATH...BENTON...LANDAFF CENTER...LISBON...EASTON...SUGAR HILL...
FRANCONIA...LITTLETON AND BETHLEHEM THROUGH 315 PM EDT.

HAIL UP TO ONE HALF INCH IN DIAMETER...HEAVY DOWNPOURS...FREQUENT
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS TO 45 MPH CAN BE EXPECTED.

HAYES/MICHAUD
Special weather statement, Aug 30, 3:10 PM EDT, 29 minutes before
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Local storm report, Aug 30, 3:39 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 12:17 PM EDTSevere Thunderstorm WarningGYXSomerset43 min
Aug 30, 3:56 PM EDTSevere Thunderstorm WarningGYXOxford64 min
Aug 30, 4:39 PM EDTSevere Thunderstorm WarningGYXKennebec66 min
Aug 30, 4:56 PM EDTSevere Thunderstorm WarningGYXOxford64 min
Aug 30, 5:03 PM EDTSevere Thunderstorm WarningGYXFranklin42 min
Aug 30, 5:08 PM EDTSevere Thunderstorm WarningGYXSomerset52 min
Aug 30, 5:10 PM EDTSevere Thunderstorm WarningGYXOxford50 min
Aug 30, 5:25 PM EDTSevere Thunderstorm WarningGYXAndroscoggin50 min
Aug 30, 5:55 PM EDTSevere Thunderstorm WarningGYXOxford35 min
Aug 30, 6:09 PM EDTSevere Thunderstorm WarningGYXSomerset36 min
Aug 30, 2:47 PM EDTSevere Thunderstorm WarningGYXGrafton58 min
Aug 30, 3:27 PM EDTSevere Thunderstorm WarningGYXCoos48 min
Aug 30, 3:40 PM EDTSevere Thunderstorm WarningGYXGrafton65 min
Aug 30, 4:55 PM EDTSevere Thunderstorm WarningGYXGrafton65 min
Aug 30, 5:08 PM EDTSevere Thunderstorm WarningGYXSullivan52 min
Aug 30, 6:14 PM EDTSevere Thunderstorm WarningGYXGrafton46 min
Aug 30, 6:29 PM EDTSevere Thunderstorm WarningGYXMerrimack46 min
Aug 30, 6:35 PM EDTSevere Thunderstorm WarningGYXSullivan40 min

Nearby

Severe Thunderstorm Warnings in Maine, 2007Every severe thunderstorm warning in 2007

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.