433 
WUUS51 KGYX 181839
SVRGYX
NHC009-013-019-181945-
/O.NEW.KGYX.SV.W.0009.260618T1839Z-260618T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gray ME
239 PM EDT Thu Jun 18 2026

The National Weather Service in Gray Maine has issued a

* Severe Thunderstorm Warning for...
  Sullivan County in central New Hampshire...
  Southern Grafton County in northern New Hampshire...
  Northwestern Merrimack County in central New Hampshire...

* Until 345 PM EDT.

* At 239 PM EDT, severe thunderstorms were located along a line
  extending from near Lebanon to 20 miles west of Charlestown, moving
  east at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Claremont, Lebanon, Franklin, Henniker, New London, Plymouth,
  Grafton, Hanover, Charlestown, Enfield, Canaan, Holderness,
  Ashland, Bradford, Danbury, Groton, Newport, Warner, Marlow, and
  Alstead.

This includes the following highways...
 Interstate 89 between mile markers 16 and 60.
 Interstate 93 between mile markers 75 and 81.

This also includes...
  Mount Kearsage and Mount Sunapee.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

A Tornado Watch remains in effect until 700 PM EDT for central,
southern and northern New Hampshire.

&&

LAT...LON 4325 7244 4336 7239 4337 7242 4352 7240
      4369 7231 4380 7155 4369 7159 4368 7165
      4362 7165 4359 7173 4350 7167 4315 7181
      4315 7188 4321 7192 4318 7203 4315 7203
      4314 7217 4318 7216 4314 7243
TIME...MOT...LOC 1839Z 258DEG 47KT 4360 7231 4319 7280 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLE

767 
WWUS51 KGYX 181923
SVSGYX

Severe Weather Statement
National Weather Service Gray ME
323 PM EDT Thu Jun 18 2026

NHC009-013-019-181945-
/O.CON.KGYX.SV.W.0009.000000T0000Z-260618T1945Z/
Sullivan NH-Grafton NH-Merrimack NH-
323 PM EDT Thu Jun 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SULLIVAN...SOUTHEASTERN GRAFTON AND NORTHWESTERN MERRIMACK
COUNTIES...

At 323 PM EDT, severe thunderstorms were located along a line
extending from near Grafton to near Charlestown, moving east at 40
mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Claremont, Franklin, Henniker, New London, Plymouth, Grafton,
Charlestown, Enfield, Canaan, Holderness, Ashland, Bradford, Danbury,
Groton, Newport, Warner, Marlow, Alstead, Hillsborough, and Bristol.

This also includes...
  Mount Kearsage and Mount Sunapee.
 
This includes the following highways...
 Interstate 89 between mile markers 16 and 51.
 Interstate 93 between mile markers 75 and 80.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for central,
southern and northern New Hampshire.

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4336 7239 4371 7208 4378 7156 4369 7159
      4368 7165 4362 7165 4359 7173 4350 7167
      4315 7181 4315 7188 4321 7192 4318 7203
      4315 7203 4314 7217 4318 7216 4314 7243
      4325 7244
TIME...MOT...LOC 1923Z 259DEG 34KT 4363 7198 4321 7239 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLE