Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 63, NWS Gray, ME

July 18, 2013Merrimack County, Rockingham County, Strafford County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 18, 2013, 3:42 PM EDT for Merrimack County, Rockingham County, Strafford County, New Hampshire. It was in force for 48 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 18, 2013, 3:42 PM EDT (19:42 UTC)
Expired: Jul 18, 2013, 4:30 PM EDT
In force: 48 min
Issued by: NWS Gray, ME
Area: Storm-based polygon

Counties Merrimack County, NH, Rockingham County, NH, Strafford County, NH

The radar

The Portland,ME radar (KGYX), 112 km from the middle of the area, began a volume at 19:45 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.

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 18, 12:42 PM EDT, 3 hours earlier.

Area forecast discussion, Jul 18, 12:42 PM EDT, 3 hours before

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Hazardous weather outlook, Jul 18, 3:40 PM EDT, 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
340 PM EDT THU JUL 18 2013

MEZ007>009-013-014-022-025>028-NHZ001>005-007-191000-
NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN FRANKLIN-
SOUTHERN SOMERSET-INTERIOR WALDO-SAGADAHOC-LINCOLN-KNOX-
COASTAL WALDO-NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON-
NORTHERN CARROLL-SOUTHERN GRAFTON-SULLIVAN-
340 PM EDT THU JUL 18 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS COULD PRODUCE VERY HEAVY
RAINFALL AND STRONG GUSTY WINDS THROUGH EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE COMBINATION OF HIGHS ABOVE 90 DEGREES ON FRIDAY AND HIGH
HUMIDITY LEVELS COULD PRODUCE HEAT INDICIES OF 95 TO 100 ON
FRIDAY.

STRONG STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE A LARGER
THREAT ON SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

MEZ012-018>021-023-024-NHZ006-008>010-013-014-191000-
SOUTHERN OXFORD-INTERIOR YORK-INTERIOR CUMBERLAND-ANDROSCOGGIN-
KENNEBEC-COASTAL YORK-COASTAL CUMBERLAND-SOUTHERN CARROLL-MERRIMACK-
BELKNAP-STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
340 PM EDT THU JUL 18 2013

...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM EDT FRIDAY...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS COULD PRODUCE VERY HEAVY
RAINFALL AND STRONG GUSTY WINDS THROUGH EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   HEAT ADVISORY.

THE COMBINATION OF HIGHS IN THE MID TO UPPER 90S AND HIGH
HUMIDITY LEVELS COULD PRODUCE HEAT INDICIES IN EXCESS OF 100 ON
FRIDAY IN SOUTHERN NEW HAMPSHIRE AND SOUTHWEST MAINE. STRONG
STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE LARGER THREAT ON
SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION.

STRONG STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE A LARGER
THREAT ON SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

ANZ150>154-191000-
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-
340 PM EDT THU JUL 18 2013

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.

SCATTERED THUNDERSTORMS COULD PRODUCE STRONG GUSTY WINDS THIS
AFTERNOON INTO THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

STRONG THUNDERSTORMS ARE POSSIBLE AGAIN ON FRIDAY AFTERNOON...WITH
A BETTER CHANCE ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

In the hours before

Special weather statement, Jul 18, 2:25 PM EDT, 1 hour 17 minutes before

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Special weather statement, Jul 18, 2:45 PM EDT, 57 minutes before

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Special weather statement, Jul 18, 2:58 PM EDT, 44 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 17, 8:11 PM EDT	Special Weather Statement	GYX	Somerset	49 min
Jul 17, 8:23 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Oxford, York	67 min
Jul 17, 8:38 PM EDT	Special Weather Statement	GYX	Franklin	52 min
Jul 17, 9:27 PM EDT	Severe Thunderstorm Warning	GYX	Cumberland, Oxford, York	48 min
Jul 17, 9:34 PM EDT	Special Weather Statement	GYX	Kennebec	41 min
Jul 17, 9:37 PM EDT	Special Marine Warning	GYX		113 min
Jul 17, 9:54 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Lincoln, Sagadahoc	36 min
Jul 17, 10:26 PM EDT	Special Weather Statement	GYX	York	19 min
Jul 17, 10:36 PM EDT	Special Weather Statement	GYX	Knox	24 min
Jul 18, 2:25 PM EDT	Special Weather Statement	GYX	Cumberland	35 min
Jul 18, 2:45 PM EDT	Special Weather Statement	GYX	Cumberland	30 min
Jul 18, 2:58 PM EDT	Special Weather Statement	GYX	Cumberland	32 min
Jul 18, 3:29 PM EDT	Severe Thunderstorm Warning	GYX	Cumberland	46 min
Jul 18, 3:31 PM EDT	Heat Advisory	GYX	Androscoggin, Cumberland, Kennebec, Oxford, York	27 hr
Jul 18, 3:39 PM EDT	Special Marine Warning	GYX		66 min
Jul 18, 4:26 PM EDT	Special Weather Statement	GYX	York	34 min
Jul 18, 4:47 PM EDT	Special Weather Statement	GYX	Kennebec	28 min
Jul 18, 5:43 PM EDT	Special Weather Statement	GYX	Cumberland	32 min
Jul 18, 5:46 PM EDT	Special Weather Statement	GYX	Waldo	44 min
Jul 18, 5:54 PM EDT	Special Weather Statement	GYX		36 min
Jul 18, 7:59 PM EDT	Flash Flood Warning	GYX	Franklin, Oxford	4 hr
Jul 17, 9:20 PM EDT	Areal Flood Advisory	GYX	Grafton	115 min
Jul 17, 9:37 PM EDT	Flash Flood Warning	GYX	Grafton	3 hr
Jul 18, 4:49 PM EDT	Special Weather Statement	GYX	Grafton	26 min
Jul 18, 5:47 PM EDT	Special Weather Statement	GYX	Merrimack	43 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2013 Every severe thunderstorm warning in 2013

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.