Alert archive / Montana / Excessive Heat Warnings in 2021
Excessive Heat Warning 1, NWS Great Falls, MT
NWS Great Falls, MT issued this excessive heat warning at Jul 16, 2021, 2:14 PM MDT. It took effect at Jul 17, 2021, 12:00 PM MDT. It was in force for 60 hr. 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 16, 2021, 2:14 PM MDT (20:14 UTC)
- In effect from
- Jul 17, 2021, 12:00 PM MDT
- Expired
- Jul 20, 2021, 12:01 AM MDT
- In force
- 60 hr
- Issued by
- NWS Great Falls, MT
The text
As transmitted.
977 WWUS75 KTFX 162014 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 214 PM MDT Fri Jul 16 2021 MTZ011-013-047-051-171000- /O.UPG.KTFX.EH.A.0001.210718T1800Z-210722T0300Z/ /O.NEW.KTFX.EH.W.0001.210717T1800Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including Havre, Rocky Boy, Rudyard, Fort Benton, Carter, Big Sandy, Chinook, Harlem, Hays, Lewistown, Winifred, Lewistown Divide, and Grass Range 214 PM MDT Fri Jul 16 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON SATURDAY TO 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Hill, Chouteau, Blaine and Fergus. * WHEN...From noon Saturday to 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-171000- /O.NEW.KTFX.HT.Y.0004.210718T1800Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty- Judith Basin-Broadwater- Including Great Falls, Cascade, Belt, Kings Hill Pass, Flesher Pass, Lincoln, MacDonald Pass, Rogers Pass, Shelby, Sunburst, Chester, Whitlash, Raynesford, Stanford, Hobson, Toston, Townsend, and Winston 214 PM MDT Fri Jul 16 2021 ...HEAT ADVISORY IN EFFECT FROM NOON SUNDAY TO 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Central and Southern Lewis and Clark, Toole, Liberty, Judith Basin and Broadwater. * WHEN...From noon Sunday to 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-171000- /O.NEW.KTFX.HT.Y.0004.210718T1800Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including Ennis, Norris Hill, Raynolds Pass, Twin Bridges, Virginia City, Brady, Conrad, Fairfield, Dutton, Montana City, Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, Martinsdale, Deep Creek Pass, White Sulphur Springs, Bozeman Apt, City of Bozeman, West Yellowstone, Battle Ridge Pass, Bozeman Pass, and Targhee Pass 214 PM MDT Fri Jul 16 2021 ...HEAT ADVISORY IN EFFECT FROM NOON SUNDAY TO 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Madison, Eastern Pondera, Eastern Teton, Jefferson, Meagher and Gallatin. * WHEN...From noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/greatfalls
9 follow-up statements
900 WWUS75 KTFX 162103 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 303 PM MDT Fri Jul 16 2021 MTZ011-013-047-051-171100- /O.CON.KTFX.EH.W.0001.210717T1800Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 303 PM MDT Fri Jul 16 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON SATURDAY TO 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...From Noon Saturday to 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the OccupationalSafety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-171100- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 303 PM MDT Fri Jul 16 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...From Noon Sunday to 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the OccupationalSafety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-171100- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 303 PM MDT Fri Jul 16 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...From Noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the OccupationalSafety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ mpj
212 WWUS75 KTFX 170712 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 112 AM MDT Sat Jul 17 2021 MTZ011-013-047-051-180000- /O.CON.KTFX.EH.W.0001.210717T1800Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 112 AM MDT Sat Jul 17 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...From Noon today to 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-180000- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 112 AM MDT Sat Jul 17 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...From Noon Sunday to 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-180000- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 112 AM MDT Sat Jul 17 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...From Noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ Moldan
075 WWUS75 KTFX 171936 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 136 PM MDT Sat Jul 17 2021 MTZ011-013-047-051-181200- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 136 PM MDT Sat Jul 17 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-181200- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 136 PM MDT Sat Jul 17 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...From Noon Sunday to 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-181200- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 136 PM MDT Sat Jul 17 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...From Noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ ML
006 WWUS75 KTFX 180819 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 219 AM MDT Sun Jul 18 2021 MTZ011-013-047-051-190015- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 219 AM MDT Sun Jul 18 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-190015- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 219 AM MDT Sun Jul 18 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...From Noon today to 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-190015- /O.CON.KTFX.HT.Y.0004.210718T1800Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 219 AM MDT Sun Jul 18 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...From Noon today to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ Hoenisch
218 WWUS75 KTFX 190220 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 820 PM MDT Sun Jul 18 2021 MTZ011-013-047-051-191030- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 820 PM MDT Sun Jul 18 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-191030- /O.CON.KTFX.HT.Y.0004.000000T0000Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 820 PM MDT Sun Jul 18 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-191030- /O.CON.KTFX.HT.Y.0004.000000T0000Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 820 PM MDT Sun Jul 18 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT MONDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...Until 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ mpj
993 WWUS75 KTFX 190827 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 227 AM MDT Mon Jul 19 2021 MTZ011-013-047-051-192200- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Hill-Chouteau-Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Carter, Rudyard, Rocky Boy, Havre, Winifred, Grass Range, Fort Benton, Lewistown, Chinook, Harlem, and Big Sandy 227 AM MDT Mon Jul 19 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus, Blaine, Chouteau and Hill Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ012-014-044-045-050-053-192200- /O.CON.KTFX.HT.Y.0004.000000T0000Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 227 AM MDT Mon Jul 19 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Cascade, Judith Basin, Liberty, Toole, Broadwater and Central and Southern Lewis and Clark Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ MTZ015-046-049-052-054-055-192200- /O.CON.KTFX.HT.Y.0004.000000T0000Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 227 AM MDT Mon Jul 19 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Hazardous heat, with afternoon highs of 95 to low 100s, and overnight lows in the mid-50s to mid-60s. * WHERE...Meagher, Eastern Pondera, Eastern Teton, Gallatin, Jefferson and Madison Counties. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses to occur. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ Hoenisch
941 WWUS75 KTFX 192031 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 231 PM MDT Mon Jul 19 2021 MTZ011-013-192145- /O.CAN.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Hill-Chouteau- Including the cities of Carter, Rudyard, Rocky Boy, Havre, Fort Benton, and Big Sandy 231 PM MDT Mon Jul 19 2021 ...EXCESSIVE HEAT WARNING IS CANCELLED... Smoke and cloud cover has kept temperatures cooler than originally anticipated. As such, the Excessive Heat Warning is cancelled. $$ MTZ012-014-044-045-050-053-192145- /O.CAN.KTFX.HT.Y.0004.000000T0000Z-210721T0300Z/ Cascade-Central and Southern Lewis and Clark-Toole-Liberty-Judith Basin-Broadwater- Including the cities of Lincoln, Raynesford, Hobson, Stanford, Helena, Toston, Shelby, Winston, Whitlash, Cascade, MacDonald Pass, Townsend, Chester, Great Falls, Rogers Pass, Belt, Sunburst, Flesher Pass, and Kings Hill Pass 231 PM MDT Mon Jul 19 2021 ...HEAT ADVISORY IS CANCELLED... Smoke and cloud cover has kept temperatures cooler than originally anticipated. As such, the Heat Advisory is cancelled. $$ MTZ015-046-049-052-054-055-192145- /O.CAN.KTFX.HT.Y.0004.000000T0000Z-210720T0300Z/ Madison-Eastern Pondera-Eastern Teton-Jefferson-Meagher-Gallatin- Including the cities of Deep Creek Pass, Bozeman Pass, Martinsdale, Montana City, Twin Bridges, West Yellowstone, Conrad, Targhee Pass, Raynolds Pass, Whitehall, Battle Ridge Pass, Boulder Hill, Boulder, Brady, Bozeman Apt, Dutton, Elk Park Pass, Fairfield, Ennis, Virginia City, Norris Hill, City of Bozeman, White Sulphur Springs, and Homestake Pass 231 PM MDT Mon Jul 19 2021 ...HEAT ADVISORY IS CANCELLED... Smoke and cloud cover has kept temperatures cooler than originally anticipated. As such, the Heat Advisory is cancelled. $$ MTZ047-051-200445- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Winifred, Grass Range, Lewistown, Chinook, and Harlem 231 PM MDT Mon Jul 19 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 100 to 105 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus and Blaine Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ mpj
749 WWUS75 KTFX 200214 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 814 PM MDT Mon Jul 19 2021 MTZ047-051-201200- /O.CON.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Winifred, Grass Range, Lewistown, Chinook, and Harlem 814 PM MDT Mon Jul 19 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MDT TUESDAY... * WHAT...Dangerously hot conditions with afternoon highs of 90 to 97 degrees, combined with overnight low temperatures in the mid 60s to mid 70s. * WHERE...Fergus and Blaine Counties. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency! Call 9 1 1. && $$ Fogleman
660 WWUS75 KTFX 200601 NPWTFX URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 1201 AM MDT Tue Jul 20 2021 MTZ047-051-200715- /O.CAN.KTFX.EH.W.0001.000000T0000Z-210721T0300Z/ Blaine-Fergus- Including the cities of Hays, Lewistown Divide, Winifred, Grass Range, Lewistown, Chinook, and Harlem 1201 AM MDT Tue Jul 20 2021 ...EXCESSIVE HEAT WARNING IS CANCELLED... The Excessive Heat Warning for Fergus and Blaine Counties has been cancelled. While warm temperatures are still forecasted for the day on Tuesday, temperatures are no longer expected to surpass the century mark. Continue to practice heat safety. $$ Moldan
What forecasters said that day
The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Great Falls, MT wrote its last area forecast discussion before this excessive heat warning went out at Jul 16, 11:20 AM MDT, 2 hours 54 minutes earlier.
Area forecast discussion, Jul 16, 11:20 AM MDT, 2 hours 54 minutes before
Area Forecast Discussion National Weather Service Great Falls MT 1120 AM MDT Fri Jul 16 2021 update aviation... .UPDATE... Overall the forecast remains largely on track. Expect high temps across much of the area to range from the upper 80s to mid-90s, which is likely being suppressed a bit by the smoke over the area. There are some mid-level clouds over central MT this morning, and some showers and thunderstorms are still forecast to develop this afternoon. Not looking at high likelihood of severe, but will mainly need to monitor for gusty wind potential and new lightning-caused fire starts. -Kredensor && .SYNOPSIS... Isolated to scattered showers and thunderstorms will once again be possible today and through the early evening hours tonight across portions of the region, especially over the higher terrain of Southwest and Central Montana. Temperatures warm through the weekend, with the hottest day being on Monday of next week as temperatures peak between 95 and 105 degrees. && .AVIATION... 1120 AM MDT Fri Jul 16 2021 (16/18Z TAF period) VFR conditions continue across the area. Mid level clouds and a few light showers will continue across central MT. Widely scattered thunderstorms will develop this afternoon. While thunderstorm coverage will likely be low, gusty and erratic winds from this activity will be more widespread. Areas of smoke/haze continue over the region with surface visibility generally greater than 6SM, but could be lower for a period this morning in areas directly downwind of wildfire activity. db Refer to weather.gov/zlc for more detailed regional aviation weather and hazard information. && .FIRE WEATHER... Thunderstorms of both wet and dry nature will once again be possible across portions of Southwest through North Central Montana, mainly along and southeast of a Lincoln, to Belt, to Hays line. While the highest chance for isolated dry thunderstorms exists across Southwest Montana today, a few storms producing little rainfall can not be ruled out further north. Additional chances for thunderstorms arrive back across the Northern Rockies on Monday, with the best chance and coverage of storms expected on Tuesday as monsoonal moisture lifts northeast from the Great Basin and Desert Southwest. Temperatures will remain hot and afternoon relative humidity low through much of next seven days, with the hottest and driest days being on Sunday and Monday. - Moldan && .PREV DISCUSSION... /ISSUED 509 AM MDT Fri Jul 16 2021/ Today through Saturday...subtle wave lifting northeast within southwest flow aloft will provide another opportunity for showers and thunderstorms across Southwest and portions of Central and North Central Montana through the evening hours tonight, mainly along and southeast of a Lincoln, to Belt, to Hays line. Best chance for these showers and thunderstorms will be during peak heating hours, with the best coverage of precipitation primarily residing over the higher terrain. While isolated dry thunderstorms will be a concern across the region once again, especially over Southwest Montana along and south of the I-90 corridor, PWATs approaching 0.75" (especially over Central and North Central Montana) and slow storm motions are expected to lead to higher chances for wetting rains today and early tonight. Given dry boundary and mid-level layers, denoted within soundings (inverted-v's), concerns for gusty and erratic winds approaching 45-55 mph do exist. High temperatures today will be somewhat "cooler" than Thursday, but remain above normal in the upper 80s to upper 90s. Saturday is expected to be dry day across the Northern Rockies as the upper level ridge amplifies across the western 2/3rds of the CONUS and into Canada, with high temperatures warming into the low 90s to low 100s. Sunday through next Friday...primary concern over the period will be the heat and increasing thunderstorm chances. Upper level ridge will continue to amplify through Monday, before subtle waves and increasing monsoonal moisture begin to lift northeast within the southwest flow aloft. Have maintained the Excessive Heat Watch for eastern portions of Central and North Central Montana from Sunday through Wednesday as this period continues to have the warmest daytime highs, with marginal relief (i.e. low temperatures only falling into the mid-60s to mid-70s) during the overnight hours. High temperatures are still expected to peak during the day on Monday, with most lower elevations rising to between 95 and 105 degrees. The warmest temperatures on Monday are expected across eastern portions of Central and North Central Montana; however, even areas like Great Falls, Helena, and Bozeman could reach or exceed the century mark. Monsoonal moisture will begin to lift northeast from the Desert Southwest and Great Basin during the day on Monday, with isolated chances for showers and thunderstorms across southern portions of Southwest Montana. Shower and thunderstorm chances increase further in both potential and areal extent on Tuesday, with the potential for some storms to produce localized heavy rainfall given forecasted PWATs of over 1". Daily chances for afternoon showers and thunderstorms linger across eastern portions of Southwest through North Central Montana from Wednesday through Friday as the upper level ridge slowly shifts east. - Moldan && .PRELIMINARY POINT TEMPS/POPS... GTF 92 57 96 56 / 10 10 0 0 CTB 89 55 91 53 / 0 0 0 0 HLN 94 60 97 62 / 20 20 0 0 BZN 92 53 96 55 / 20 30 0 0 WYS 83 41 87 41 / 20 10 10 0 DLN 88 51 92 52 / 20 30 0 0 HVR 96 62 99 61 / 10 10 0 0 LWT 90 60 94 59 / 40 20 0 0 && .TFX WATCHES/WARNINGS/ADVISORIES... Excessive Heat Watch from Sunday afternoon through Wednesday evening Blaine...Chouteau...Fergus...Hill. && http://www.weather.gov/greatfalls
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:04 PM MDT | Special Weather Statement | TFX | Broadwater | 56 min |
| Jul 15, 8:35 PM MDT | Special Weather Statement | TFX | Meagher | 55 min |
| Jul 15, 9:41 PM MDT | Special Weather Statement | TFX | Judith Basin | 49 min |
| Jul 16, 12:10 AM MDT | Special Weather Statement | TFX | 50 min | |
| Jul 16, 2:14 PM MDT | Heat Advisory | TFX | 3 days |
Nearby
Excessive Heat Warnings in Montana, 2021Every excessive heat warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.