Strong persistent ridging over the Pacific Northwest supported a prolonged heat wave over inland portions of southwest Oregon.

Excessive Heat in SOUTH CENTRAL OREGON COAST, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 52 to 58 degrees. Reported high temperatures ranged from 66 to 85 degrees. On 08/14/23, reported low temperatures ranged from 52 to 60 degrees. Reported high temperatures ranged from 67 to 95 degrees. On 08/15/23, reported low temperatures ranged from 52 to 64 degrees. Reported high temperatures ranged from 72 to 97 degrees. On 08/16/23, reported low temperatures ranged from 56 to 60 degrees. Reported high temperatures ranged from 67 to 88 degrees. A record high temperature of 79 degrees was reported at North Bend, Southwest Oregon Regional Airport on 8/14/23.

Excessive Heat in CURRY COUNTY COAST, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 52 to 58 degrees. Reported high temperatures ranged from 63 to 81 degrees. On 08/14/23, reported low temperatures ranged from 52 to 61 degrees. Reported high temperatures ranged from 63 to 82 degrees. On 08/15/23, reported low temperatures ranged from 58 to 61 degrees. Reported high temperatures ranged from 76 to 91 degrees. On 08/16/23, reported low temperatures ranged from 58 to 61 degrees. Reported high temperatures ranged from 70 to 89 degrees.

Excessive Heat in CENTRAL DOUGLAS COUNTY, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 56 to 65 degrees. Reported high temperatures ranged from 97 to 107 degrees. On 08/14/23, reported low temperatures ranged from 60 to 74 degrees. Reported high temperatures ranged from 103 to 109 degrees. On 08/15/23, reported low temperatures ranged from 62 to 74 degrees. Reported high temperatures ranged from 97 to 108 degrees. On 08/16/23, reported low temperatures ranged from 59 to 72 degrees. Reported high temperatures ranged from 100 to 108 degrees. Record high temperatures were reported at Roseburg  Regional Airport of 109 degrees on 8/14/23, and 108 degrees on 8/16/23.

Excessive Heat in EASTERN CURRY COUNTY & JOSEPHINE COUNTY, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 51 to 60 degrees. Reported high temperatures ranged from 100 to 106 degrees. On 08/14/23, reported low temperatures ranged from 54 to 65 degrees. Reported high temperatures ranged from 104 to 112 degrees. On 08/15/23, reported low temperatures ranged from 61 to 73 degrees. Reported high temperatures ranged from 102 to 108 degrees. On 08/16/23, reported low temperatures ranged from 60 to 67 degrees. Reported high temperatures ranged from 105 to 111 degrees.

Excessive Heat in EASTERN DOUGLAS COUNTY FOOTHILLS, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 52 to 63 degrees. Reported high temperatures ranged from 96 to 106 degrees. On 08/14/23, reported low temperatures ranged from 57 to 71 degrees. Reported high temperatures ranged from 98 to 110 degrees. On 08/15/23, reported low temperatures ranged from 57 to 71 degrees. Reported high temperatures ranged from 94 to 104 degrees. On 08/16/23, reported low temperatures ranged from 57 to 71 degrees. Reported high temperatures ranged from 96 to 108 degrees.

Excessive Heat in JACKSON COUNTY, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 53 to 64 degrees. Reported high temperatures ranged from 100 to 106 degrees. On 08/14/23, reported low temperatures ranged from 58 to 68 degrees. Reported high temperatures ranged from 106 to 111 degrees. On 08/15/23, reported low temperatures ranged from 66 to 76 degrees. Reported high temperatures ranged from 100 to 107 degrees. On 08/16/23, reported low temperatures ranged from 61 to 72 degrees. Reported high temperatures ranged from 100 to 107 degrees. A record high temperature was reported at Medford, Rogue Valley International Airport of 111 degrees on 8/14/23.

Excessive Heat in SOUTH CENTRAL OREGON CASCADES, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 54 to 66 degrees. Reported high temperatures ranged from 92 to 100 degrees. On 08/14/23, reported low temperatures ranged from 60 to 72 degrees. Reported high temperatures ranged from 94 to 104 degrees. On 08/15/23, reported low temperatures ranged from 62 to 70 degrees. Reported high temperatures ranged from 91 to 99 degrees. On 08/16/23, reported low temperatures ranged from 62 to 72 degrees. Reported high temperatures ranged from 93 to 100 degrees.

Excessive Heat in SISKIYOU MOUNTAINS & SOUTHERN OREGON CASCADES, OREGON
From 13-AUG-23 12:00:00 to 17-AUG-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

On 08/13/23, reported low temperatures ranged from 49 to 68 degrees. Reported high temperatures ranged from 85 to 105 degrees. On 08/14/23, reported low temperatures ranged from 54 to 74 degrees. Reported high temperatures ranged from 88 to 109 degrees. On 08/15/23, reported low temperatures ranged from 59 to 74 degrees. Reported high temperatures ranged from 82 to 104 degrees. On 08/16/23, reported low temperatures ranged from 56 to 70 degrees. Reported high temperatures ranged from 85 to 104 degrees.