Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 86, NWS Gray, ME

July 11, 2006Rockingham County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 11, 2006, 5:11 PM EDT for Rockingham County, New Hampshire. It was in force for 64 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 11, 2006, 5:11 PM EDT (21:11 UTC)
Expired: Jul 11, 2006, 6:15 PM EDT
In force: 64 min
Issued by: NWS Gray, ME
Area: Counties, with a storm outline in the text

County Rockingham County, NH

The radar

The Boston radar (KBOX), 115 km from the middle of the area, began a volume at 21:12 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.

Issued	Product	Office	Lasted
Jul 11, 12:16 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.2 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 352 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 57 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 Jul 11, 3:25 PM EDT, 1 hour 46 minutes earlier.

Area forecast discussion, Jul 11, 3:25 PM EDT, 1 hour 46 minutes before

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Hazardous weather outlook, Jul 11, 5:57 AM EDT, 11 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
557 AM EDT TUE JUL 11 2006

ANZ150-MEZ007>009-012>014-018>028-NHZ001>010-013-014-121000-
STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 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-
557 AM EDT TUE JUL 11 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF 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
A PERSISTENT AREA OF THUNDERSTORMS HELD TOGETHER AS THEY MOVED
THROUGH NEW YORK STATE OVERNIGHT...AND VERMONT AROUND DAYBREAK.
THESE WILL BE MOVING THROUGH OUR AREA TODAY. SOME COULD PRODUCE
STRONG GUSTY WINDS...HAIL AND HEAVY DOWNPOURS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
LOW PRESSURE MOVING ACROSS SOUTHERN PORTIONS WILL BRING RAIN TO
THOSE AREAS LATE WEDNESDAY. THERE WILL ALSO BE SOME SCATTERED
THUNDERSTORMS OVER THE REST OF THE REGION. THE REST OF THE WEEK
LOOKS HAZY...WARM AND HUMID WITH AREAS OF AFTERNOON AND EVENING
THUNDERSTORMS AND PATCHY NIGHTTIME FOG.

.SPOTTER INFORMATION STATEMENT...
PLEASE BE READY TO ASSIST IN SOLICITING THUNDERSTORM RELATED
DAMAGE REPORTS TODAY.

In the hours before

Special weather statement, Jul 11, 3:56 PM EDT, 1 hour 15 minutes before

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Special weather statement, Jul 11, 4:07 PM EDT, 1 hour 4 minutes before

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Special weather statement, Jul 11, 4:23 PM EDT, 48 minutes before

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Special weather statement, Jul 11, 4:40 PM EDT, 31 minutes before

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Special weather statement, Jul 11, 4:55 PM EDT, 16 minutes before

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Special weather statement, Jul 11, 5:02 PM EDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 12:40 PM EDT	Special Marine Warning	GYX		65 min
Jul 11, 1:56 PM EDT	Special Marine Warning	GYX		94 min
Jul 11, 2:18 PM EDT	Severe Thunderstorm Warning	GYX	Lincoln	42 min
Jul 11, 2:44 PM EDT	Severe Thunderstorm Warning	GYX	Kennebec	50 min
Jul 11, 3:08 PM EDT	Special Marine Warning	GYX		97 min
Jul 11, 4:25 PM EDT	Special Marine Warning	GYX		95 min
Jul 11, 11:35 AM EDT	Severe Thunderstorm Warning	GYX	Rockingham	40 min
Jul 11, 12:07 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	38 min
Jul 11, 12:21 PM EDT	Tornado Warning	GYX	Rockingham	39 min
Jul 11, 2:27 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	63 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2006 Every severe thunderstorm warning in 2006

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.