Alert archive / New Hampshire / Tornado Warnings in 2015

Tornado Warning 2, NWS Gray, ME

June 23, 2015Belknap County, Carroll County, Grafton County, New Hampshire

NWS Gray, ME issued this tornado warning at Jun 23, 2015, 5:30 PM EDT for Belknap County, Carroll County, Grafton County, New Hampshire. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2015, 5:30 PM EDT (21:30 UTC)
Expired
Jun 23, 2015, 6:00 PM EDT
In force
30 min
Issued by
NWS Gray, ME
Area
Storm-based polygon

Counties Belknap County, NH, Carroll County, NH, Grafton County, NH

The radar

The Portland,ME radar (KGYX), 103 km from the middle of the area, began a volume at 21:32 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
Jun 23, 3:47 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.5 hours before the alert went out and 103 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 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.19395878Sfc1 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
17 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
952 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

688 
WFUS51 KGYX 232130
TORGYX
NHC001-003-009-232200-
/O.NEW.KGYX.TO.W.0002.150623T2130Z-150623T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAY ME
530 PM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN CARROLL COUNTY IN NORTHERN NEW HAMPSHIRE...
  SOUTHEASTERN GRAFTON COUNTY IN NORTHERN NEW HAMPSHIRE...
  NORTHERN BELKNAP COUNTY IN CENTRAL NEW HAMPSHIRE...

* UNTIL 600 PM EDT
    
* AT 530 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER ASHLAND...OR NEAR PLYMOUTH...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LACONIA...MEREDITH...MOULTONBOROUGH...PLYMOUTH...OSSIPEE...ALTON...
  GILMANTON...HOLDERNESS...ASHLAND...WOLFEBORO...GILFORD...CENTER
  HARBER...BRIDGEWATER...ELLACOYA STATE PARK...TUFTONBORO...AHERN
  STATE PARK AND NEW HAMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

IF ON OR NEAR LAKE WINNIPESAUKEE...GET OUT OF THE WATER AND MOVE TO 
SAFE SHELTER IMMEDIATELY. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE 
ENOUGH TO BE STRUCK BY LIGHTNING. IN ADDITION...SEVERE THUNDERSTORMS 
CAN PRODUCE LARGE CAPSIZING WAVES...EVEN ON SMALL BODIES OF WATER. 
MOVE INTO DOCK AND SEEK SAFE SHELTER NOW. DO NOT BE CAUGHT ON THE 
WATER IN A THUNDERSTORM.

&&

LAT...LON 4379 7165 4372 7119 4346 7130 4367 7174
TIME...MOT...LOC 2130Z 287DEG 24KT 4368 7164 

$$

LEGRO
3 follow-up statements
566 
WWUS51 KGYX 232142
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
542 PM EDT TUE JUN 23 2015

NHC001-003-009-232200-
/O.CON.KGYX.TO.W.0002.000000T0000Z-150623T2200Z/
CARROLL NH-GRAFTON NH-BELKNAP NH-
542 PM EDT TUE JUN 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR
SOUTHWESTERN CARROLL...SOUTHEASTERN GRAFTON AND NORTHERN BELKNAP
COUNTIES...
    
AT 542 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED OVER
MEREDITH...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
LACONIA...MEREDITH...MOULTONBOROUGH...OSSIPEE...ALTON...GILMANTON...
HOLDERNESS...ASHLAND...WOLFEBORO...GILFORD...CENTER HARBER...
BRIDGEWATER...ELLACOYA STATE PARK...TUFTONBORO...AHERN STATE PARK AND
NEW HAMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

IF ON OR NEAR LAKE WINNIPESAUKEE...GET OUT OF THE WATER AND MOVE TO 
SAFE SHELTER IMMEDIATELY. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE 
ENOUGH TO BE STRUCK BY LIGHTNING. IN ADDITION...SEVERE THUNDERSTORMS 
CAN PRODUCE LARGE CAPSIZING WAVES...EVEN ON SMALL BODIES OF WATER. 
MOVE INTO DOCK AND SEEK SAFE SHELTER NOW. DON'T BE CAUGHT ON THE 
WATER IN A THUNDERSTORM.

&&

LAT...LON 4378 7160 4372 7119 4346 7130 4362 7163
      4370 7168
TIME...MOT...LOC 2142Z 287DEG 24KT 4366 7153 

$$

LEGRO
428 
WWUS51 KGYX 232154
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
554 PM EDT TUE JUN 23 2015

NHC009-232203-
/O.CAN.KGYX.TO.W.0002.000000T0000Z-150623T2200Z/
GRAFTON NH-
554 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR SOUTHEASTERN GRAFTON COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4376 7147 4372 7119 4346 7130 4363 7150
TIME...MOT...LOC 2153Z 287DEG 24KT 4364 7143 

$$

NHC001-003-232200-
/O.CON.KGYX.TO.W.0002.000000T0000Z-150623T2200Z/
CARROLL NH-BELKNAP NH-
554 PM EDT TUE JUN 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR
SOUTHWESTERN CARROLL AND CENTRAL BELKNAP COUNTIES...
    
AT 553 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
MEREDITH...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
NORTHEASTERN LACONIA...MOULTONBOROUGH...MEREDITH...OSSIPEE...ALTON...
GILMANTON...WOLFEBORO...GILFORD...CENTER HARBER...ELLACOYA STATE PARK
AND TUFTONBORO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

IF ON OR NEAR LAKE WINNIPESAUKEE...GET OUT OF THE WATER AND MOVE TO 
SAFE SHELTER IMMEDIATELY. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE 
ENOUGH TO BE STRUCK BY LIGHTNING. IN ADDITION...SEVERE THUNDERSTORMS 
CAN PRODUCE LARGE CAPSIZING WAVES...EVEN ON SMALL BODIES OF WATER. 
MOVE INTO DOCK AND SEEK SAFE SHELTER NOW. DON'T BE CAUGHT ON THE 
WATER IN A THUNDERSTORM.

&&

LAT...LON 4376 7147 4372 7119 4346 7130 4363 7150
TIME...MOT...LOC 2153Z 287DEG 24KT 4364 7143 

$$

LEGRO
020 
WWUS51 KGYX 232202
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
602 PM EDT TUE JUN 23 2015

NHC001-003-232211-
/O.EXP.KGYX.TO.W.0002.000000T0000Z-150623T2200Z/
CARROLL NH-BELKNAP NH-
602 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR SOUTHWESTERN CARROLL AND CENTRAL BELKNAP
COUNTIES HAS EXPIRED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS
ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
GRAY MAINE.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
NORTHERN BELKNAP AND SOUTHERN CARROLL COUNTIES IN NEW HAMPSHIRE.

LAT...LON 4376 7147 4372 7119 4346 7130 4363 7150
TIME...MOT...LOC 2200Z 287DEG 24KT 4364 7143 

$$

LEGRO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 10:06 AM EDTSpecial Weather StatementGYXCheshire24 min
Jun 23, 10:56 AM EDTSpecial Weather StatementGYXStrafford34 min
Jun 23, 11:18 AM EDTSpecial Weather StatementGYXRockingham42 min
Jun 23, 11:37 AM EDTSpecial Weather StatementGYXRockingham38 min
Jun 23, 4:22 PM EDTSpecial Weather StatementGYXGrafton23 min
Jun 23, 4:46 PM EDTSpecial Weather StatementGYXGrafton29 min
Jun 23, 5:03 PM EDTSpecial Weather StatementGYXCoos42 min
Jun 23, 5:09 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Grafton, Strafford51 min
Jun 23, 5:14 PM EDTSevere Thunderstorm WarningGYXCoos46 min
Jun 23, 5:25 PM EDTTornado WarningGYXCoos35 min
Jun 23, 5:50 PM EDTSevere Thunderstorm WarningGYXCoos40 min
Jun 23, 5:57 PM EDTSevere Thunderstorm WarningGYXCoos48 min
Jun 23, 5:58 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Strafford47 min
Jun 23, 6:39 PM EDTSevere Thunderstorm WarningGYXCoos51 min

Nearby

Tornado Warnings in New Hampshire, 2015Every tornado warning in 2015Tornadoes 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.