* WHAT. Heat index values up to 97 across northern areas and up to 100 across the Central Highlands and Downeast. * WHERE. Northern Penobscot, Southern Piscataquis, Coastal Washington, Northern Washington, Southeast Aroostook, Northeast Aroostook, and Central Penobscot Counties. * WHEN. From 11 AM this morning to 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values up to 107 expected. * WHERE. Coastal Hancock, Central Washington, Interior Hancock, and Southern Penobscot Counties. * WHEN. From 11 AM this morning to 8 PM EDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 100. * WHERE. Northern Penobscot, Southern Piscataquis, Coastal Washington, Northern Washington, Southeast Aroostook, and Central Penobscot Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values up to 106. * WHERE. Coastal Hancock, Central Washington, Interior Hancock, and Southern Penobscot Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 103. * WHERE. Southern Piscataquis, Coastal Washington, Northern Washington, and Central Penobscot Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values up to 106. * WHERE. Coastal Hancock, Central Washington, Interior Hancock, and Southern Penobscot Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Dangerously hot conditions with heat index values up to 105 expected. * WHERE. Portions of south central, southwest, and western Maine and central, northern, and southern New Hampshire. * WHEN. From 11 AM this morning to 7 PM EDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 100 expected. * WHERE. In Maine, Southern Somerset and Southern Franklin Counties. In New Hampshire, Sullivan, Northern Carroll, Northern Grafton, Southern Coos, Southern Grafton, and Cheshire Counties. * WHEN. From 11 AM this morning to 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 438 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MAINE THIS WATCH INCLUDES 11 COUNTIES IN SOUTH CENTRAL MAINE KENNEBEC KNOX LINCOLN SAGADAHOC WALDO IN SOUTHWEST MAINE ANDROSCOGGIN CUMBERLAND YORK IN WEST CENTRAL MAINE SOMERSET IN WESTERN MAINE FRANKLIN OXFORD IN NEW HAMPSHIRE THIS WATCH INCLUDES 10 COUNTIES IN CENTRAL NEW HAMPSHIRE BELKNAP MERRIMACK STRAFFORD SULLIVAN IN NORTHERN NEW HAMPSHIRE CARROLL COOS GRAFTON IN SOUTHERN NEW HAMPSHIRE CHESHIRE HILLSBOROUGH ROCKINGHAM THIS INCLUDES THE CITIES OF ALFRED, ALNA, ANDOVER, APPLETON, ARROWSIC, ASHLAND, ATHENS, ATKINSON, AUBURN, AUGUSTA, AVON, BARRINGTON, BATH, BELFAST, BERLIN, BETHEL, BETHLEHEM, BIDDEFORD, BOSCAWEN, BOWDOIN, BOWDOINHAM, BREMEN, BRIDGEWATER, BRISTOL, BROOKFIELD, BROOKS, BRYANT POND, BYRON, CAMDEN, CANTERBURY, CAPE ELIZABETH, CHESTER, CHINA, CLAREMONT, COBURN GORE, CONCORD, CORNISH, CORNVILLE, CROYDON, DAMARISCOTTA, DAVIS, DERRY, DOVER, DRESDEN, DUMMER, DUNBARTON, DURHAM, EMBDEN, ERROL, FARMINGTON, GILFORD, GILSUM, GOSHEN, GRANTHAM, GREENE, HAMPSTEAD, HANOVER, HOLLIS, HOPE, JACKSON, JACKSON, KEENE, KINGFIELD, KNOX, LACONIA, LEBANON, LEBANON, LEMPSTER, LEWISTON, LIBERTY, LINCOLN, LITTLETON, LOUDON, LYME, MADBURY, MANCHESTER, MARLOW, MILAN, MILLSFIELD, MINOT, MONTVILLE, MORRILL, NASHUA, NEW GLOUCESTER, NEW PORTLAND, NEWCASTLE, NEWTON, OLD ORCHARD BEACH, OQUOSSOC, OSSIPEE, OWLS HEAD, PALERMO, PALMYRA, PELHAM, PHIPPSBURG, PITTSFIELD, PLAISTOW, PORTLAND, RANGELEY, ROCHESTER, ROCKLAND, ROCKPORT, ROLLINSFORD, SABATTUS, SACO, SALEM, SANFORD, SIDNEY, SKOWHEGAN, SOMERSWORTH, SOUTH PORTLAND, SUGAR HILL, SULLIVAN, SURRY, TOPSHAM, TUFTONBORO, TURNER, UNITY, UPTON, VASSALBORO, WAKEFIELD, WALES, WATERVILLE, WESTBROOK, WHITEFIELD, WILSONS MILLS, WINDSOR, WOLFEBORO, AND YORK POND.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 438 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MAINE THIS WATCH INCLUDES 3 COUNTIES IN DOWNEAST MAINE HANCOCK IN EAST CENTRAL MAINE PENOBSCOT IN NORTH CENTRAL MAINE PISCATAQUIS THIS INCLUDES THE CITIES OF BANGOR, BAR HARBOR, BREWER, DOVER-FOXCROFT, ELLSWORTH, GREENVILLE, GUILFORD, MILO, OLD TOWN, AND ORONO.