Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 52, NWS Gray, ME

July 19, 2015Oxford County, Maine; Carroll County, Coos County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 19, 2015, 5:36 PM EDT for Oxford County, Maine; Carroll County, Coos County, New Hampshire. It was in force for 39 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 19, 2015, 5:36 PM EDT (21:36 UTC)
Expired
Jul 19, 2015, 6:15 PM EDT
In force
39 min
Issued by
NWS Gray, ME
Area
Storm-based polygon

Counties Oxford County, ME, Carroll County, NH, Coos County, NH

The radar

The Portland,ME radar (KGYX), 84 km from the middle of the area, began a volume at 21:36 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.

IssuedProductOfficeLasted
Jul 19, 2:49 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.6 hours before the alert went out and 84 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 2015-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2015-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1140 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
69 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 19, 5:12 PM EDT, 24 minutes earlier.

Area forecast discussion, Jul 19, 5:12 PM EDT, 24 minutes before
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Hazardous weather outlook, Jul 19, 5:12 PM EDT, 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
512 PM EDT SUN JUL 19 2015

MEZ007-012-018>020-023-024-NHZ001>015-202115-
NORTHERN OXFORD-SOUTHERN OXFORD-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-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
WESTERN AND CENTRAL HILLSBOROUGH NH-
512 PM EDT SUN JUL 19 2015

...SEVERE THUNDERSTORM WATCH 442 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

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

.DAY ONE...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...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ153-MEZ008-009-013-014-021-022-025>028-202115-
CASCO BAY-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN FRANKLIN-
SOUTHERN SOMERSET-KENNEBEC-INTERIOR WALDO-SAGADAHOC-LINCOLN-KNOX-
COASTAL WALDO-
512 PM EDT SUN JUL 19 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY AND WESTERN MAINE.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ150>152-154-202115-
STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY-
PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-
CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM-
512 PM EDT SUN JUL 19 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR 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...TONIGHT.

THUNDERSTORMS ARE POSSIBLE TONIGHT. SOME OF THE STORMS COULD BE
STRONG AND THERE IS AN OUTSIDE CHANCE OF A SEVERE THUNDERSTORM.
THE PRIMARY THREAT WILL BE DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 19, 4:32 PM EDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
432 PM EDT SUN JUL 19 2015

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

0431 PM     HAIL             SOUTH BERWICK           43.23N  70.81W
07/19/2015  M1.00 INCH       YORK               ME   TRAINED SPOTTER

            TAKING LEAVES OFF TREES

&&

EVENT NUMBER GYX1500092

CEMPA
Special weather statement, Jul 19, 4:43 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
443 PM EDT SUN JUL 19 2015

MEZ018-NHZ006-192115-
INTERIOR YORK ME-SOUTHERN CARROLL NH-
443 PM EDT SUN JUL 19 2015

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  INTERIOR YORK COUNTY IN MAINE
  SOUTHERN CARROLL COUNTY IN NEW HAMPSHIRE

* UNTIL 515 PM EDT

* AT 442 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A STRONG THUNDERSTORM NEAR WOLFEBORO...MOVING TO THE EAST AT 30
  MPH.

* DIME SIZE HAIL AND STRONG WIND GUSTS OF 45 TO 55 MPH ARE EXPECTED
  WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  ACTON...
  SHAPLEIGH...
  WAKEFIELD...
  AND BROOKFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT STAY IN THE OPEN OR SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. SEEK SHELTER INSIDE A STURDY BUILDING OR IN A VEHICLE.

THIS STORM MAY INTENSIFY...SO MONITOR LOCAL RADIO AND TELEVISION FOR
ADDITIONAL INFORMATION...AND POSSIBLE WARNINGS...FROM THE NATIONAL
WEATHER SERVICE.

&&

LAT...LON 4351 7096 4354 7096 4352 7099 4352 7104
      4353 7104 4353 7112 4357 7113 4354 7116
      4355 7119 4363 7123 4371 7088 4350 7084
TIME...MOT...LOC 2041Z 260DEG 26KT 4357 7114

MARINE
Special weather statement, Jul 19, 5:00 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
500 PM EDT SUN JUL 19 2015

NHZ002>004-006-192145-
NORTHERN GRAFTON NH-NORTHERN CARROLL NH-SOUTHERN CARROLL NH-
SOUTHERN COOS NH-
500 PM EDT SUN JUL 19 2015

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHERN GRAFTON COUNTY IN NEW HAMPSHIRE
  NORTHERN CARROLL COUNTY IN NEW HAMPSHIRE
  SOUTHERN CARROLL COUNTY IN NEW HAMPSHIRE
  SOUTHERN COOS COUNTY IN NEW HAMPSHIRE

* UNTIL 545 PM EDT

* AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES SOUTH OF
  LITTLETON TO 11 MILES NORTH OF SANDWICH...MOVING TO THE EAST AT 35
  MPH.

* DIME SIZE HAIL AND WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH
  THESE STORMS. EXPECT FREQUENT CLOUD TO GROUND LIGHTNING WITH THIS
  LINE OF STORMS.

* LOCATIONS IMPACTED INCLUDE...
  BETHLEHEM...
  CONWAY...
  LINCOLN...
  CRAWFORD NOTCH...
  AND SUGAR HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT STAY IN THE OPEN OR SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. SEEK SHELTER INSIDE A STURDY BUILDING OR IN A VEHICLE.

THESE STORMS WILL LIKELY INTENSIFY...SO MONITOR LOCAL RADIO AND
TELEVISION FOR ADDITIONAL INFORMATION...AND POSSIBLE WARNINGS...FROM
THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4434 7155 4391 7101 4391 7148 4425 7204
TIME...MOT...LOC 2057Z 280DEG 30KT 4417 7182 4395 7146

MARINE
Local storm report, Jul 19, 5:16 PM EDT, 20 minutes before
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Local storm report, Jul 19, 5:28 PM EDT, 8 minutes before
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Local storm report, Jul 19, 5:29 PM EDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 2:32 AM EDTSpecial Weather StatementGYXLincoln58 min
Jul 19, 3:33 AM EDTSpecial Weather StatementGYXKnox42 min
Jul 19, 3:28 PM EDTSevere Thunderstorm WarningGYXYork62 min
Jul 19, 4:11 PM EDTSevere Thunderstorm WarningGYXYork49 min
Jul 19, 4:35 PM EDTSpecial Marine WarningGYX55 min
Jul 19, 4:58 PM EDTSevere Thunderstorm WarningGYXYork20 min
Jul 19, 5:02 PM EDTSevere Thunderstorm WarningGYXYork43 min
Jul 19, 5:05 PM EDTSevere Thunderstorm WarningGYXCumberland40 min
Jul 19, 5:35 PM EDTSevere Thunderstorm WarningGYXOxford, York55 min
Jul 19, 5:43 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford, York30 min
Jul 19, 6:00 PM EDTSevere Thunderstorm WarningGYXYork28 min
Jul 19, 6:27 PM EDTSevere Thunderstorm WarningGYXYork48 min
Jul 19, 6:36 PM EDTSpecial Weather StatementGYXOxford24 min
Jul 19, 7:30 PM EDTSevere Thunderstorm WarningGYXOxford45 min
Jul 19, 7:36 PM EDTSpecial Weather StatementGYXYork39 min
Jul 18, 9:42 PM EDTSpecial Weather StatementGYXGrafton48 min
Jul 19, 9:22 AM EDTSpecial Weather StatementGYXCoos38 min
Jul 19, 9:40 AM EDTSpecial Weather StatementGYXCoos50 min
Jul 19, 2:42 PM EDTSpecial Weather StatementGYXBelknap33 min
Jul 19, 2:46 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Strafford44 min
Jul 19, 3:56 PM EDTSpecial Weather StatementGYXBelknap49 min
Jul 19, 4:06 PM EDTSpecial Weather StatementGYXBelknap24 min
Jul 19, 4:26 PM EDTSevere Thunderstorm WarningGYXBelknap, Merrimack, Strafford49 min
Jul 19, 4:27 PM EDTSpecial Weather StatementGYXCoos48 min
Jul 19, 4:43 PM EDTSpecial Weather StatementGYXCarroll32 min
Jul 19, 5:00 PM EDTSpecial Weather StatementGYXGrafton45 min
Jul 19, 5:11 PM EDTSevere Thunderstorm WarningGYXGrafton64 min
Jul 19, 5:45 PM EDTSevere Thunderstorm WarningGYXBelknap, Grafton, Merrimack60 min
Jul 19, 6:24 PM EDTSevere Thunderstorm WarningGYXCarroll, Coos, Grafton66 min
Jul 19, 6:57 PM EDTSevere Thunderstorm WarningGYXBelknap, Merrimack48 min
Jul 19, 7:17 PM EDTSevere Thunderstorm WarningGYXMerrimack, Sullivan43 min
Jul 19, 7:35 PM EDTSevere Thunderstorm WarningGYXBelknap, Merrimack, Strafford40 min
Jul 19, 7:46 PM EDTAreal Flood AdvisoryGYXCarroll, Coos, Grafton3 hr
Jul 19, 7:57 PM EDTSevere Thunderstorm WarningGYXBelknap, Grafton, Merrimack, Sullivan32 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2015Severe Thunderstorm Warnings in Maine, 2015Every severe thunderstorm warning in 2015

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.