Watches, Warnings & Advisories



3 products issued by NWS for: 4 Miles NW Winchendon MA

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Gray ME
259 AM EDT Sat Jun 21 2025

NHZ007-008-010>013-015-220700-
Sullivan-Merrimack-Strafford-Cheshire-Eastern Hillsborough-
Interior Rockingham-Western And Central Hillsborough-
259 AM EDT Sat Jun 21 2025

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY...
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

This Hazardous Weather Outlook is for New Hampshire, central New
Hampshire and southern New Hampshire.

.DAY ONE...Today and tonight.

An area of convection is expected to arrive overnight tonight into
early Sunday morning. A few strong to severe thunderstorms are
possible with damaging winds the primary hazard.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.
   Extreme Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$



Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Gray ME
240 AM EDT Sat Jun 21 2025

NHZ007-008-010>013-015-211845-
/O.NEW.KGYX.HT.Y.0002.250622T1500Z-250623T0000Z/
/O.NEW.KGYX.XH.A.0001.250623T1500Z-250625T0000Z/
Sullivan-Merrimack-Strafford-Cheshire-Eastern Hillsborough-
Interior Rockingham-Western And Central Hillsborough-
Including the cities of Surry, Concord, Dunbarton, Salem,
Chester, Hooksett, Madbury, Rochester, Manchester, Rollinsford,
Boscawen, Claremont, Jaffrey, Amherst, Charlestown, Mont Vernon,
Gilsum, Marlow, Dover, Hollis, Croydon, Milford, Peterborough,
Pelham, Goffstown, Goshen, Sharon, Barrington, Nashua, Plaistow,
Sullivan, Exeter, Somersworth, Keene, Durham, Unity, Loudon,
Weare, Newton, Derry, Atkinson, Grantham, Newport, Hampstead,
Lempster, Canterbury, and Cornish
240 AM EDT Sat Jun 21 2025

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY...
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

* WHAT...For the Heat Advisory, heat index values up to 100
  expected. For the Extreme Heat Watch, dangerously hot conditions
  with heat index values up to 105 possible.

* WHERE...Western and Central Hillsborough, Merrimack, Strafford,
  Sullivan, Cheshire, Eastern Hillsborough, and Interior Rockingham
  Counties.

* WHEN...For the Heat Advisory, from 11 AM to 8 PM EDT Sunday. For
  the Extreme Heat Watch, from Monday morning through Tuesday
  evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Hot temperatures and high
  humidity may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Monitor the latest forecasts and warnings for updates.

&&

$$



Extreme Heat Watch

URGENT - WEATHER MESSAGE
National Weather Service Gray ME
240 AM EDT Sat Jun 21 2025

NHZ007-008-010>013-015-211845-
/O.NEW.KGYX.HT.Y.0002.250622T1500Z-250623T0000Z/
/O.NEW.KGYX.XH.A.0001.250623T1500Z-250625T0000Z/
Sullivan-Merrimack-Strafford-Cheshire-Eastern Hillsborough-
Interior Rockingham-Western And Central Hillsborough-
Including the cities of Surry, Concord, Dunbarton, Salem,
Chester, Hooksett, Madbury, Rochester, Manchester, Rollinsford,
Boscawen, Claremont, Jaffrey, Amherst, Charlestown, Mont Vernon,
Gilsum, Marlow, Dover, Hollis, Croydon, Milford, Peterborough,
Pelham, Goffstown, Goshen, Sharon, Barrington, Nashua, Plaistow,
Sullivan, Exeter, Somersworth, Keene, Durham, Unity, Loudon,
Weare, Newton, Derry, Atkinson, Grantham, Newport, Hampstead,
Lempster, Canterbury, and Cornish
240 AM EDT Sat Jun 21 2025

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY...
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

* WHAT...For the Heat Advisory, heat index values up to 100
  expected. For the Extreme Heat Watch, dangerously hot conditions
  with heat index values up to 105 possible.

* WHERE...Western and Central Hillsborough, Merrimack, Strafford,
  Sullivan, Cheshire, Eastern Hillsborough, and Interior Rockingham
  Counties.

* WHEN...For the Heat Advisory, from 11 AM to 8 PM EDT Sunday. For
  the Extreme Heat Watch, from Monday morning through Tuesday
  evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Hot temperatures and high
  humidity may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Monitor the latest forecasts and warnings for updates.

&&

$$