Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 96, NWS Gray, ME

July 6, 2007Rockingham County, Strafford County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 6, 2007, 3:35 PM EDT for Rockingham County, Strafford County, New Hampshire. It was in force for 40 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
Jul 6, 2007, 3:35 PM EDT (19:35 UTC)
Expired
Jul 6, 2007, 4:15 PM EDT
In force
40 min
Issued by
NWS Gray, ME
Area
Counties, with a storm outline in the text

Counties Rockingham County, NH, Strafford County, NH

The radar

The Portland,ME radar (KGYX), 106 km from the middle of the area, began a volume at 19:37 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, 7.6 hours before the alert went out and 105 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 2007-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 102 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 2007-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939587897117Sfc1 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
102 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

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 Jul 6, 2:51 PM EDT, 44 minutes earlier.

Area forecast discussion, Jul 6, 2:51 PM EDT, 44 minutes before
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Hazardous weather outlook, Jul 6, 3:20 AM EDT, 12 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
320 AM EDT FRI JUL 6 2007

ANZ150-170-MEZ007>009-012>014-018>028-NHZ001>010-013-014-071000-
STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM-
WATERS FROM STONINGTON (DEER ISLE) ME TO MERRIMACK RIVER MA FROM
25 TO 40 NM-NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-
SOUTHERN OXFORD-SOUTHERN FRANKLIN-SOUTHERN SOMERSET-INTERIOR YORK-
INTERIOR CUMBERLAND-ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO-
COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO-
NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-
SOUTHERN GRAFTON-SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-
STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
320 AM EDT FRI JUL 6 2007

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS TODAY MAY CONTAIN SMALL HAIL AND GUSTY WINDS.
ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...SOME SEVERE
STORMS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A WARM FRONT WILL LIFT NORTH ACROSS THE REGION SUNDAY...FOLLOWED
BY A COLD FRONT MONDAY. DEPENDING ON THE TIMING AND POSITION OF
THE FRONT...SEVERE WEATHER IS POSSIBLE BOTH SUNDAY AND
MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

APFFEL

In the hours before

Local storm report, Jul 6, 3:11 PM EDT, 24 minutes before
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Local storm report, Jul 6, 3:19 PM EDT, 16 minutes before
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Local storm report, Jul 6, 3:20 PM EDT, 15 minutes before
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Local storm report, Jul 6, 3:26 PM EDT, 9 minutes before
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Local storm report, Jul 6, 3:29 PM EDT, 6 minutes before
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Local storm report, Jul 6, 3:32 PM EDT, 3 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 11:52 AM EDTSevere Thunderstorm WarningGYXYork23 min
Jul 6, 11:56 AM EDTSpecial Marine WarningGYX64 min
Jul 6, 12:12 PM EDTSevere Thunderstorm WarningGYXYork33 min
Jul 6, 12:21 PM EDTSevere Thunderstorm WarningGYXOxford39 min
Jul 6, 12:26 PM EDTSevere Thunderstorm WarningGYXCumberland34 min
Jul 6, 12:57 PM EDTSpecial Marine WarningGYX50 min
Jul 6, 1:01 PM EDTSevere Thunderstorm WarningGYXFranklin, Somerset44 min
Jul 6, 1:06 PM EDTSevere Thunderstorm WarningGYXFranklin39 min
Jul 6, 1:14 PM EDTSevere Thunderstorm WarningGYXYork46 min
Jul 6, 1:22 PM EDTSevere Thunderstorm WarningGYXKnox, Lincoln38 min
Jul 6, 1:34 PM EDTSevere Thunderstorm WarningGYXLincoln, Sagadahoc41 min
Jul 6, 1:40 PM EDTSpecial Marine WarningGYX65 min
Jul 6, 1:49 PM EDTSevere Thunderstorm WarningGYXCumberland15 min
Jul 6, 1:51 PM EDTSevere Thunderstorm WarningGYXKennebec39 min
Jul 6, 1:56 PM EDTSevere Thunderstorm WarningGYXKnox34 min
Jul 6, 2:00 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford45 min
Jul 6, 2:29 PM EDTSevere Thunderstorm WarningGYXCumberland46 min
Jul 6, 2:32 PM EDTSevere Thunderstorm WarningGYXYork43 min
Jul 6, 2:36 PM EDTSevere Thunderstorm WarningGYXAndroscoggin, Sagadahoc39 min
Jul 6, 2:40 PM EDTSevere Thunderstorm WarningGYXKennebec, Waldo35 min
Jul 6, 3:13 PM EDTSevere Thunderstorm WarningGYXWaldo32 min
Jul 6, 3:17 PM EDTSevere Thunderstorm WarningGYXYork28 min
Jul 6, 3:22 PM EDTSevere Thunderstorm WarningGYXCumberland, Knox, Lincoln, Sagadahoc23 min
Jul 6, 3:26 PM EDTSpecial Marine WarningGYX94 min
Jul 6, 12:06 PM EDTSevere Thunderstorm WarningGYXGrafton39 min
Jul 6, 12:51 PM EDTSevere Thunderstorm WarningGYXGrafton39 min
Jul 6, 1:31 PM EDTSevere Thunderstorm WarningGYXSullivan29 min
Jul 6, 1:35 PM EDTSevere Thunderstorm WarningGYXGrafton25 min
Jul 6, 1:46 PM EDTSevere Thunderstorm WarningGYXCarroll44 min
Jul 6, 2:18 PM EDTSevere Thunderstorm WarningGYXMerrimack27 min
Jul 6, 2:22 PM EDTSevere Thunderstorm WarningGYXCarroll38 min
Jul 6, 2:37 PM EDTSevere Thunderstorm WarningGYXBelknap, Strafford53 min
Jul 6, 2:44 PM EDTSevere Thunderstorm WarningGYXRockingham46 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 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.