Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 72, NWS Gray, ME

July 21, 2010Merrimack County, Rockingham County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 21, 2010, 9:07 PM EDT for Merrimack County, Rockingham County, New Hampshire. It was in force for 53 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 21, 2010, 9:07 PM EDT (01:07 UTC)
Expired: Jul 21, 2010, 10:00 PM EDT
In force: 53 min
Issued by: NWS Gray, ME
Area: Storm-based polygon

Counties Merrimack County, NH, Rockingham County, NH

The radar

The Portland,ME radar (KGYX), 123 km from the middle of the area, began a volume at 01:11 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
Jul 21, 7:35 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

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 21, 8:59 PM EDT, 8 minutes earlier.

Area forecast discussion, Jul 21, 8:59 PM EDT, 8 minutes before

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Hazardous weather outlook, Jul 21, 11:44 AM EDT, 9 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
1144 AM EDT WED JUL 21 2010

MEZ007>009-012>014-018>028-NHZ001>010-013-014-221545-
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-
1144 AM EDT WED JUL 21 2010

...SEVERE THUNDERSTORM WATCH 507 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

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

.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.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ANZ150>154-221545-
STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY-
PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-CASCO BAY-
CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM-
1144 AM EDT WED JUL 21 2010

...SEVERE THUNDERSTORM WATCH 507 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY...PENOBSCOT
BAY...THE COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER
MA...THE COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME AND
THE COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME.

.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.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jul 21, 8:26 PM EDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
826 PM EDT WED JUL 21 2010

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

0700 PM     TSTM WND DMG     5 NW WESTBROOK          43.73N 70.44W
07/21/2010                   CUMBERLAND         ME   AMATEUR RADIO

            BARN COLLAPSED ON PLUMMER ROAD NEAR GORHAM. TIME BASED ON
            RADAR.

0730 PM     HEAVY RAIN       GORHAM                  43.68N 70.44W
07/21/2010  M2.92 INCH       CUMBERLAND         ME   TRAINED SPOTTER

            PUBLIC REPORTED HEAVY RAIN OF 2.92 INCHES AND A WIND GUST
            OF 54 MPH.

0730 PM     TSTM WND DMG     1 W GORHAM              43.68N 70.46W
07/21/2010                   CUMBERLAND         ME   PUBLIC

            PUBLIC REPORTS MULTIPLE LARGE TREES UPROOTED AND ONE ON A
            HOUSE OFF WOOD ROAD IN GORHAM. TIME BASED ON RADAR.

0818 PM     HEAVY RAIN       2 WSW CUMBERLAND        43.79N 70.30W
07/21/2010  M3.45 INCH       CUMBERLAND         ME   TRAINED SPOTTER

            PUBLIC REPORTS HEAVY RAIN OF 3.45 INCHES IN 2 HOURS IN
            CUMBERLAND.

&&

DAG

Local storm report, Jul 21, 8:39 PM EDT, 28 minutes before

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Local storm report, Jul 21, 8:45 PM EDT, 22 minutes before

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Local storm report, Jul 21, 8:53 PM EDT, 14 minutes before

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Local storm report, Jul 21, 8:58 PM EDT, 9 minutes before

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Local storm report, Jul 21, 8:59 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
Jul 21, 8:12 PM EDT	Severe Thunderstorm Warning	GYX	Knox, Lincoln, Sagadahoc	33 min
Jul 21, 8:46 PM EDT	Special Marine Warning	GYX		59 min
Jul 21, 9:47 PM EDT	Severe Thunderstorm Warning	GYX	York	36 min
Jul 21, 9:59 PM EDT	Special Marine Warning	GYX		61 min
Jul 22, 4:50 PM EDT	Special Weather Statement	GYX	Franklin	40 min
Jul 22, 5:08 PM EDT	Special Weather Statement	GYX	Somerset	22 min
Jul 22, 5:40 PM EDT	Special Weather Statement	GYX	Somerset	50 min
Jul 22, 5:50 PM EDT	Special Weather Statement	GYX	Franklin	25 min
Jul 21, 9:45 PM EDT	Special Weather Statement	GYX	Rockingham	45 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.