Matanuska-Susitna Borough, AK
Alerts
Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Monday 07/20 3:45 PM AKDT – Wednesday 07/22 10:00 AM AKDT
Issued by NWS Anchorage AK
What
Flooding caused by excessive rainfall is expected.
Where
Skwentna River.
When
Until 1000 AM AKDT Wednesday.
Impacts
Minor flooding in low-lying and poor drainage areas. Dangerous flows over low-water crossings.
Additional Details
- At 341 PM AKDT, the river gauge at Skwentna indicates rises in water levels from heavy rain across the advisory area. Minor flooding is ongoing or expected to begin shortly, especially near Skwentna River. Between 2.5 and 3.5 inches of rain have fallen. - For Skwentna River at Skwentna: At 11:30am the stage was 40.2 feet. Flood Stage is 42.0 feet. Forecast: A crest around 43.3 feet is expected around 4:00am Tuesday.
Impacts: At 41.5 feet: Water starts to flow over low spots on the road which is adjacent to an active slough. At 43.5 feet: Water starts to encroach some houses located near the active slough on the east side of town. - http://www.weather.gov/safety/flood
- If you live near or along the Skentna River stay alert and be prepared to take action.
What to Do
Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
Areas Impacted
- Western Susitna Valley
Tips to Stay Safe
A Flood Advisory is issued when flooding may cause significant inconvenience, or even become dangerous if you are not careful. Know your risk at home, work and school, and use caution when flooding is expected.
- Be aware of low-lying areas along your travel routes that are most likely to flood.
- Check road conditions before traveling, and obey road closures and barricades.
- Never walk, swim, or drive through flood waters.
- Stay tuned for local weather updates on the situation as it develops.
In effect from Monday 07/20 3:54 PM AKDT – Wednesday 07/22 12:00 PM AKDT
Issued by NWS Anchorage AK
What
Flooding caused by excessive rainfall continues.
Where
Yentna River.
When
Until noon AKDT Wednesday.
Impacts
Minor flooding in low-lying and poor drainage areas. Water could enter a few low-lying cabins along the Yentna River, particularly near Lake Creek.
Additional Details
- At 346 PM AKDT, the river gauge on the Yentna River indicates rises in water levels from heavy rain across the advisory area. Minor flooding is expected to continue or begin shortly, especially along the Yentna River near Lake Creek. - Anticipate water levels along the Yentna River to continue rising before reaching a crest Tuesday afternoon. Water will then slowly recede below minor flood levels by around Wednesday night. - For Yentna River at Lake Creek: At 2:50pm the stage was 20.9 feet. Flood Stage is 20.5 feet. Forecast: A crest around 22.0 feet is expected around 4:00pm Tuesday.
Impacts: At 20.5 feet: Anglers Inn & King Point Lodges will have water in several cabins.
At 22.0 feet: Several lodges and resorts will have water in a number of cabins with water also encroaching the main lodge buildings.
For Yentna River near Yentna Station: At 3:59pm the stage was 18.1 feet. Forecast: A crest around 21.6 feet is expected around 10:00pm Tuesday. - http://www.weather.gov/safety/flood
- If you live near or along Yentna River, stay alert and be prepared to take action.
What to Do
Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
Areas Impacted
- Western Susitna Valley
Tips to Stay Safe
A Flood Advisory is issued when flooding may cause significant inconvenience, or even become dangerous if you are not careful. Know your risk at home, work and school, and use caution when flooding is expected.
- Be aware of low-lying areas along your travel routes that are most likely to flood.
- Check road conditions before traveling, and obey road closures and barricades.
- Never walk, swim, or drive through flood waters.
- Stay tuned for local weather updates on the situation as it develops.
In effect from Tuesday 07/21 4:00 PM AKDT – Thursday 07/23 4:00 PM AKDT
Issued by NWS Anchorage AK
What
Flooding caused by excessive rainfall is possible.
Where
The following areas, Susitna Valley and Hatcher Pass. This includes the cities of Skwentna, Willow, Talkeetna, Trapper Creek, Petersville, and Chulitna.
When
Through Thursday afternoon.
Impacts
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded. Area rivers, creeks, and streams are elevated from the previous rain event and will likely rise again during these next rain events.
Additional Details
- Two additional storm systems will bring rain to the Susitna Valley, the first Tuesday afternoon through Wednesday morning and the second Wednesday evening through Thursday afternoon. 0.50" to 1" of rain is likely (70-80%) with the first event with an additional 1.0" to 2.5" of rain likely (70-80%) with the second event. The track of both systems will favor the highest rainfall totals over the northern and eastern Susitna, along the Talkeetna Mountains. As a result, fast responding rivers and streams along and east of the Parks Highway may be more susceptible to flooding with this event.
- Http://www.weather.gov/safety/flood
What to Do
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
Areas Impacted
- Hatcher Pass
- Western Susitna Valley
- Southern Susitna Valley
- Central Susitna Valley
- Northern Susitna Valley
Tips to Stay Safe
A Flood Watch means the area may experience a dangerous flooding event, and being prepared may save lives and property.
- Be aware of low-lying areas along your travel routes that are most likely to flood.
- Check your home’s emergency supplies, and make sure all members of the household know your emergency plan.
- Stay tuned for local weather updates on the situation as it develops.
If a Flood Warning is issued, it means that dangerous flooding is expected or already happening.
- Never walk, swim, or drive through flood waters or flooded roads.
- Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams.
If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground.
Briefings
From the Forecaster
Southcentral Wind and Rain Continues
Created by the NWS Anchorage WFO
Heads up Southcentral! The next few days will see gusty winds and continued rainfall across the region. An uptick in winds is forecast on Tuesday with gustier winds Wednesday into Thursday. Marine areas will see the strongest winds from Cook Inlet down into the Shelikof Strait.
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