Icy roads are almost a certainty tonight and tomorrow morning with temperatures in Juneau dropping into the 20s tonight. Taku winds may follow, with snow later in the week, forecasters said.
"I think it's going to clear off late this afternoon and the temperature is going to fall like a rock after that," said Michael Mitchell, a meteorologist with the National Weather Service in Juneau.
Mitchell is predicting temperatures in the low 20s in the Mendenhall Valley and upper 20s downtown.
"Then the wind's going to kick up and the temperature will start climbing back up downtown," he said. "I think it's going to be quite windy tomorrow, with downslope wind, kind of a Taku."
Mitchell said a high pressure over the Yukon meeting a low pressure coming in from the south will cause the winds. Snow flurries may follow as early as Wednesday evening with perhaps an inch or two accumulating in town.
Mitchell said the unseasonably warm weather this fall has persisted across the region, including British Columbia. The jet stream, which normally shifts and pushes cold northern air south to Southeast Alaska in November, has remained above the region.