Frazil ice concern prompts flood look ahead to Otonabee River, Jackson Creek in Peterborough – Peterborough |

Frazil ice concern prompts flood watch for Otonabee River, Jackson Creek in Peterborough - Peterborough |

2022-01-21 22:27:03

Issues concerning the attainable formation of frazil ice have prompted Otonabee Conservation to concern a flood watch for the Otonabee River and Jackson Creek in Peterborough.

Gord Earle, flood forecasting and warning obligation officer, says there may be an elevated threat of frazil ice (slush) on each our bodies of water on account of excessive chilly climate forecasted for the area. Frazil ice can type when the chilly air temperatures and wind chill mix to trigger floor water to chill under 0 C however be unable to type a stable cowl of ice due to the quick, transferring water.

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“Excessive chilly climate inflicting flooding has traditionally been noticed in Jackson Creek and the Otonabee River however is feasible anyplace that watercourses are uninsulated by ice cowl and the place flows are turbulent on account of rapids or water falling over dams or waterfalls,” he mentioned.

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Earle says frazil ice can circulate downstream and relaxation in opposition to obstructions or in low-velocity areas after which accumulate.

“The place frazil ice accumulates, it’s prone to trigger a restriction of water circulate downstream, thereby leading to an increase of water, and presumably flooding, behind the frazil ice jam,” mentioned Earle.

He advises residents and companies alongside the shores of the Otonabee River and Jackson Creek to maintain an in depth look ahead to frazil ice formation, accumulation and jamming.

The flood watch will stay in impact till Tuesday, Feb. 1.

Space water degree info will be monitored on-line at:

On Thursday, Peterborough Public Well being issued its fourth frostbite alert of the season.

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