Mckinley Park Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth and road condition may be unsafe. Additional information is available at https://water.weather.gov/ahps2/ Stay tuned for further updates by listening to NOAA weather radio... or your local radio and TV stations.

Frost Advisory issued May 1 at 11:31PM AKDT until May 2 at 9:00AM AKDT by NWS Juneau AK

* WHAT...Temperatures as low as 29 to 31 will result in frost formation. * WHERE...City and Borough of Yakutat, Haines Borough and Klukwan, Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait, Admiralty Island and City and Borough of Juneau. * WHEN...From 3 AM to 9 AM AKDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered.

Flood Watch issued May 1 at 3:49PM AKDT until May 2 at 4:00PM AKDT by NWS Fairbanks AK

* WHAT...Flooding caused by an ice jam continues to be possible. * WHERE...Along the Tanana River from 6 miles downstream of Manley Hot Springs * WHEN...Through Thursday afternoon. * IMPACTS...Be prepared for fluctuating water levels and flooding as the ice jam moves downriver. It is possible for the current jam to degrade and to reform further downstream. * ADDITIONAL DETAILS... - An ice jam has formed ~6 miles downstream of Manley and is causing minor flooding at the community park along the slough. As of midday Wednesday, the River Watch team reports that this jam does not appear to be strong. However, ice is still in place and looks strong at the jam point which caused flooding in 2022. It is possible that when the jam just down stream of Manley breaks, that it will form back up near the 2022 location, but the flooding should not become much worse than it is currently. When the jam finally releases and ice flushes further down stream, river levels are expected to come back down in the Manley area. There is not significant ice upstream of Manley. - Http://www.weather.gov/aprfc - Please stay tuned to NOAA weather radio or your favorite local weather news source for updates on this situation. - If you live by the Tanana River near Manly Hot Springs stay alert and be prepared to take action.

Special Weather Statement issued May 1 at 3:21PM AKDT by NWS Fairbanks AK

River Watch flew the Yukon River yesterday from Eagle to FourtyMile River. An observer 23 miles upstream of Eagle said that the Yukon there broke up yesterday afternoon. Ice began flowing but within a few hours had stopped flowing and an ice jam formed. Yukon rose to near mid-summer high levels and was continuing to rise slowly. Due to current river levels and ice conditions, the threat for flooding has diminished in the area around Eagle. However, ice jams can still pose a localized threat in the areas immediately around where they form.

Flood Watch issued May 1 at 9:06AM AKDT until May 6 at 9:00PM AKDT by NWS Anchorage AK

As spring snowmelt continues, highs in the 50s and lows in the low 30s will maintain high streamflows in the Copper Basin through the weekend. Snowpack melting off of higher terrain will impact creeks and streams in and around Glennallen, including Moose Creek and Trooper Creek, which will continue to see rises with excessive runoff possible. * WHAT...Flooding caused by snowmelt continues to be possible. * WHERE...The following area, Copper River Basin. This includes the city of Glennallen. * WHEN...Through Monday evening. * IMPACTS...Flooding of the Glenn Highway is possible near Moose Creek, with flooding on Terrace Drive from Trooper Creek also impacting low areas around Glennallen. * ADDITIONAL DETAILS... - Snowmelt will continue to cause large rises on the small streams which flow in and around Glennallen. Flooding of low areas and low roads can be expected to continue through the weekend. People in the area should prepare for high water and move belongings in low lying areas and the floodplain to higher ground. - Http://www.weather.gov/safety/flood - If you live near or along streams in the Glennallen area stay alert and be prepared to take action if a Flood Warning or Advisory is issued.