21. Under clear skies and calm winds Thursday night, temperatures will plummet into the teens from northern Pennsylvania to interior New England. 22. She said relatively calm winds and high humidity aided firefighters in battling the blaze, which was sparked by a campfire Saturday. 23. Although Saturday provided the best weather of the week with clear skies and calm winds , Els hit only four of 14 fairways. 24. Temperatures during the day were in the 70s under clear skies and game-time temperatures were in the mid-50s with nearly calm winds . 25. Clear skies and calm winds Friday night will lead to areas of frost in northern parts of New York and New England. 26. Temperatures during the day here were in the 70s under clear skies and game-time temperatures were in the mid-50's with nearly calm winds . 27. Despite mostly clear skies and virtually calm winds , the temperature only fell to 78 degrees at Harrisburg, Penn ., at daybreak on Monday. 28. Even in no wind cases, a preferred calm wind runway and direction is normally chosen and used by all flights, to avoid collisions. 29. Calm winds and French booms prevented him from sailing his fleet of 30 warships, nine supply ships, and 15 transports into the harbor.30. Scattered frost will occur in parts of the interior Northeast on Tuesday night as calm winds and clear skies promote rapid cooling after sunset.