Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 29, NWS Gray, ME

June 5, 2007Rockingham County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jun 5, 2007, 3:10 PM EDT for Rockingham County, New Hampshire. It was in force for 65 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 5, 2007, 3:10 PM EDT (19:10 UTC)
Expired: Jun 5, 2007, 4:15 PM EDT
In force: 65 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 19:11 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
Jun 5, 12:09 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 7.2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 914 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 67 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 5, 2:14 PM EDT, 56 minutes earlier.

Area forecast discussion, Jun 5, 2:14 PM EDT, 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
214 PM EDT TUE JUN 5 2007

.SYNOPSIS...
A STRONG COLD FRONT WILL CROSS THE AREA LATE TODAY...THEN SWEEP
OFFSHORE OVERNIGHT. HIGH PRESSURE WHICH WILL USHER IN A MUCH
COOLER AIRMASS... FOLLOWS FOR WEDNESDAY AND THURSDAY. A WARM
FRONT WILL MOVE EAST INTO THE REGION ON FRIDAY.

&&

.NEAR TERM /UNTIL 7 PM THIS EVENING/...
THUNDERSTORM WATCH IN EFFECT FOR ALL OF NEW HAMPSHIRE AS WELL AS
SOUTHWESTERN MAINE TIL 7 PM WITH SHOWERS/THUNDERSTORMS INTO THIS
EVENING.

&&

.SHORT TERM /7 PM THIS EVENING THROUGH 6 PM WEDNESDAY/...
THUNDERSTORM ACTIVITY WILL END DURING THE EVENING HOURS WITH
CLEARING OVERNIGHT...MAYBE SOME RESIDUAL PATCHY FOG.  MOSTLY
CLEAR SKIES FOR WEDNESDAY...PERHAPS SOME AFTERNOON CUMULUS
ESPECIALLY OVER ELEVATED TERRAIN.
&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
VERY BUSY WITH STRONG/SEVERE THUNDERSTORMS THIS AFTERNOON SO THIS
WILL BE BRIEF.

MUCH COOLER AND DRIER AIR ENTERS THE FORECAST AREA WEDNESDAY
NIGHT. ENOUGH GRADIENT AND MIN TEMPS IN THE UPPER 30S TO PREVENT
MOST AREAS FROM RECEIVING FROST. HOWEVER...THIS WILL NEED TO BE
WATCHED AND UPDATED IN FUTURE PRODUCTS.

CYCLOGENESIS OCCURS TO OUR EAST THURSDAY. STILL SOME QUESTION AS
TO WHETHER HEAT ARRIVES TO GYX LATE IN THE WEEK WITH MARITIME FLOW.
&&

.AVIATION /17Z TUESDAY THROUGH SATURDAY/...
SHORT TERM...HIGHLY VARIABLE CONDITIONS THROUGH THIS EVENING WITH
SEVERE THUNDERSTORMS.  CLEARING OVERNIGHT WITH PATCHY FOG.  BECOMING
VFR WEDNESDAY MORNING.

LONG TERM...BASICALLY VFR...BECOMING LOCALLY IFR/MVFR BY FRIDAY
NIGHT.
&&

.MARINE...
SHORT TERM...SEVERE THUNDERSTORM WATCH THROUGH 7 PM OVER THE WATERS.
SCAS FOR SEAS THROUGH WEDNESDAY.

LONG TERM...WINDS/SEAS MAINLY BELOW SCA CRITERIA.
&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...MEZ007-008-012-013-018>020-023-024...SEVERE THUNDERSTORM WATCH
     TIL 7 PM .
NH...NHZ001>010-013-014...SEVERE THUNDERSTORM WATCH TIL 7 PM.
MARINE...ANZ150...SEVERE THUNDERSTORM WATCH TIL 7 PM.
     SMALL CRAFT ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR ANZ150.

&&

Hazardous weather outlook, Jun 5, 12:22 PM EDT, 2 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
1222 PM EDT TUE JUN 5 2007

ANZ150-MEZ007-008-012-013-018>020-023-024-NHZ001>010-013-014-061630-
STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM-NORTHERN OXFORD-
NORTHERN FRANKLIN-SOUTHERN OXFORD-SOUTHERN FRANKLIN-INTERIOR YORK-
INTERIOR CUMBERLAND-ANDROSCOGGIN-COASTAL YORK-COASTAL CUMBERLAND-
NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-
SOUTHERN GRAFTON-SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-
STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
1222 PM EDT TUE JUN 5 2007

...SEVERE THUNDERSTORM WATCH 347 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

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...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

THERE WILL BE THUNDERSTORMS TODAY THROUGHOUT NEW HAMPSHIRE AND
WESTERN MAINE AS A COLD FRONT SLOWLY APPROACHES THE REGION FROM
THE WEST. THE MAIN THREAT WITH THESE STORMS WILL BE LARGE HAIL AND
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

ANZ170-MEZ009-014-021-022-025>028-061630-
WATERS FROM STONINGTON (DEER ISLE) ME TO MERRIMACK RIVER MA FROM
25 TO 40 NM-CENTRAL SOMERSET-SOUTHERN SOMERSET-KENNEBEC-
INTERIOR WALDO-SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO-
1222 PM EDT TUE JUN 5 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE WILL BE A CHANCE OF SEVERE THUNDERSTORMS TODAY THROUGHOUT
NEW HAMPSHIRE AND WESTERN MAINE AS WELL AS OVER THE COASTAL
WATERS. A COLD FRONT SLOWLY APPROACHES THE REGION FROM THE WEST.
THE MAIN THREAT WITH THESE STORMS WILL BE LARGE HAIL AND DAMAGING
WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

In the hours before

Local storm report, Jun 5, 2:37 PM EDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
237 PM EDT TUE JUN 05 2007

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

0205 PM     HAIL             LONDONDERRY             42.87N 71.37W
06/05/2007  E0.88 INCH       ROCKINGHAM         NH   PUBLIC

0208 PM     TSTM WND DMG     EPSOM                   43.22N 71.33W
06/05/2007                   MERRIMACK          NH   PUBLIC

            LARGE BRANCHES BROKEN

0210 PM     HAIL             LONDONDERRY             42.87N 71.37W
06/05/2007  E0.88 INCH       ROCKINGHAM         NH   PUBLIC

0211 PM     HAIL             LONDONDERRY             42.87N 71.37W
06/05/2007  E1.00 INCH       ROCKINGHAM         NH   PUBLIC

0211 PM     HAIL             DERRY                   42.88N 71.33W
06/05/2007  E1.75 INCH       ROCKINGHAM         NH   PUBLIC

0159 PM     HAIL             ALTON                   43.45N 71.22W
06/05/2007  E0.75 INCH       BELKNAP            NH   PUBLIC

0216 PM     HAIL             CHESTER                 42.96N 71.26W
06/05/2007  E0.88 INCH       ROCKINGHAM         NH   PUBLIC

0217 PM     HAIL             CANDIA                  43.08N 71.28W
06/05/2007  E1.00 INCH       ROCKINGHAM         NH   PUBLIC

&&

POHL

Local storm report, Jun 5, 2:45 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
245 PM EDT TUE JUN 05 2007

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

0223 PM     HAIL             LONDONDERRY             42.87N 71.37W
06/05/2007  E0.75 INCH       ROCKINGHAM         NH   PUBLIC

0223 PM     HAIL             RAYMOND                 43.04N 71.18W
06/05/2007  E1.00 INCH       ROCKINGHAM         NH   PUBLIC

0224 PM     HAIL             RAYMOND                 43.04N 71.18W
06/05/2007  E0.75 INCH       ROCKINGHAM         NH   PUBLIC

0230 PM     HAIL             RAYMOND                 43.04N 71.18W
06/05/2007  E0.75 INCH       ROCKINGHAM         NH   PUBLIC

0234 PM     HAIL             BARRINGTON              43.22N 71.05W
06/05/2007  E0.75 INCH       STRAFFORD          NH   PUBLIC

&&

POHL

Local storm report, Jun 5, 2:48 PM EDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
248 PM EDT TUE JUN 05 2007

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

0243 PM     FUNNEL CLOUD     LEE                     43.12N 71.01W
06/05/2007                   STRAFFORD          NH   LAW ENFORCEMENT

            ROUTE 155 BETWEEN LEE AND MADBURY

&&

POHL

Local storm report, Jun 5, 2:51 PM EDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
251 PM EDT TUE JUN 05 2007

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

0234 PM     HAIL             MADBURY                 43.17N 70.92W
06/05/2007  E0.75 INCH       STRAFFORD          NH   PUBLIC

0239 PM     HAIL             EPPING                  43.03N 71.07W
06/05/2007  E1.00 INCH       ROCKINGHAM         NH   PUBLIC

&&

POHL

Special weather statement, Jun 5, 2:58 PM EDT, 12 minutes before

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Special weather statement, Jun 5, 3:02 PM EDT, 8 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
Jun 5, 2:32 PM EDT	Severe Thunderstorm Warning	GYX	Franklin	43 min
Jun 5, 2:42 PM EDT	Severe Thunderstorm Warning	GYX	York	63 min
Jun 5, 3:20 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	55 min
Jun 5, 3:48 PM EDT	Severe Thunderstorm Warning	GYX	York	57 min
Jun 5, 4:09 PM EDT	Special Marine Warning	GYX		66 min
Jun 5, 4:38 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	37 min
Jun 5, 5:34 PM EDT	Severe Thunderstorm Warning	GYX	York	36 min
Jun 5, 7:30 PM EDT	Severe Thunderstorm Warning	GYX	York	45 min
Jun 5, 7:55 PM EDT	Special Marine Warning	GYX		65 min
Jun 5, 12:57 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	33 min
Jun 5, 1:59 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	31 min
Jun 5, 2:08 PM EDT	Severe Thunderstorm Warning	GYX	Belknap, Strafford	52 min
Jun 5, 2:21 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	39 min
Jun 5, 2:24 PM EDT	Tornado Warning	GYX	Strafford	36 min
Jun 5, 2:34 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	41 min
Jun 5, 2:54 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	51 min
Jun 5, 2:59 PM EDT	Severe Thunderstorm Warning	GYX	Strafford	16 min
Jun 5, 3:00 PM EDT	Severe Thunderstorm Warning	GYX	Sullivan	45 min
Jun 5, 3:33 PM EDT	Severe Thunderstorm Warning	GYX	Strafford	42 min
Jun 5, 3:38 PM EDT	Severe Thunderstorm Warning	GYX	Coos	40 min
Jun 5, 3:42 PM EDT	Severe Thunderstorm Warning	GYX	Grafton	33 min
Jun 5, 5:06 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	39 min
Jun 5, 6:18 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	42 min
Jun 5, 6:40 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	50 min
Jun 5, 7:01 PM EDT	Severe Thunderstorm Warning	GYX	Strafford	44 min
Jun 5, 7:43 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	32 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2007 Every 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.