Lexington, Massachusetts, USA
Issued by the National Weather Service - Juneau, AK
Areas Affected: Ketchikan Gateway Borough; Annette Island
Urgency: Expected
Severity: Severe
Certainty: Likely
Alert Sent: Friday 8:42pm AKST
Alert Effective: Friday 8:42pm AKST
Alert Expires: Saturday 3:00am AKST
Event Onset: Friday 8:42pm AKST
Event Ends: Saturday 3:00am AKST
Issued by: NWS Juneau AK
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 AM AKST SATURDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 69 mph. * WHERE...Ketchikan Gateway Borough and Annette Island. * WHEN...Until 3 AM AKST Saturday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel will be difficult. * ADDITIONAL DETAILS...Wind gusts after the warning times will also be strong, with gusts to around 40 mph into early Saturday morning. Stronger winds will also be observed at higher elevations.
People are urged to secure vessels and loose objects that could be blown around or damaged by the wind. Report any damage to the National Weather Service by visiting weather.gov/Juneau/StormReports
ID: urn:oid:2.49.0.1.840.0.f1d555b6d55269b89b9cb1b6770f5b36ce1e4ed0.002.1 Codes: AKZ330, AKZ332 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f1d555b6d55269b89b9cb1b6770f5b36ce1e4ed0.002.1
Areas Affected: City and Borough of Sitka; Petersburg Borough; Western Kupreanof and Kuiu Island; Prince of Wales Island; City and Borough of Wrangell; Ketchikan Gateway Borough; City of Hyder; Annette Island
Urgency: Future
Severity: Severe
Certainty: Possible
Alert Sent: Friday 9:30pm AKST
Alert Effective: Friday 9:30pm AKST
Alert Expires: Saturday 9:30am AKST (expect updated alert by this time)
Event Onset: Friday 9:30pm AKST
Event Ends: Monday 9:00am AKST
Issued by: NWS Juneau AK
...FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... An atmospheric river with multiple surges of moisture has moved into the panhandle and is possible to last into Sunday evening. Precipitation has mostly transitioned to rain past the Icy Strait corridor, and is still expected to transition for the northern inner channels overnight Friday. Snow levels are roughly 1500 to 2500 feet above sea level along the Icy Strait corridor through the southern panhandle. A brief, distinct lull in heavy rainfall is expected overnight Friday night into Saturday morning for the southern half of the panhandle, before another surge of moderate to heavy rain. Additional rainfall amounts from Friday night through Saturday night look to range around 1.5 to 3.0 inches in the southern panhandle, including Ketchikan and Metlakatla, 1.0 to 2.0 inches for the central inner channels including Petersburg, Wrangell, and Kake, 0.75 to 1.5 inches for the Icy Strait corridor, 1.0 to 2.0 for the Juneau area, and 1.0 to 1.5 inches for the far northern inner channels near sea level. Currently, expecting the snowpack to absorb most rainfall from this weekend system and produce minimal runoff in the northern half of the panhandle with a deep sea level snowpack. Therefore, snow, ice, or other debris could potentially block storm drains and allow for ponding of rain and snowmelt in areas that they normally would not collect, such as roadways or walkways. Another surge of moisture is looking increasingly likely for the southern half of the panhandle overnight Saturday and continuing through Sunday, and therefore, the flood watch was extended. There is growing confidence that very strong rain rates during the morning hours for the Ketchikan, Metlakatla, and Prince of Wales Island, with around a 40-60% chance for 3 hour rates exceeding 0.4 inches. This surge in precipitation may coincide with another surge of wind gusts, with sea level gusts possibly reaching as high as 50 mph Sunday evening. The southern panhandle could see 1.5 to 3.0 additional inches, the central inner channels could receive 1.0 to 2.0 additional inches, the Icy Strait corridor could receive 0.75 to 1.5 additional inches, and the Juneau area could receive 1.5 to 2.5 additional inches. Stay tuned for more information. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...The following areas, Prince of Wales, Eastern Gulf Coast, Southern Inner Channels and Central Inner Channels. This includes the cities of Sitka, Petersburg, Kake, Port Alexander, Craig, Klawock, Hydaburg, Coffman Cove, Thorne Bay, Wrangell, Ketchikan, Hyder, And Metlakatla. * WHEN...Through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, other low-lying areas and flood-prone locations. Storm drains and ditches may become clogged with debris or snow. Increased risk of possible isolated landslides. * ADDITIONAL DETAILS... - Around 2.0 to 5.0 inches of rain has fallen for Prince of Wales, Ketchikan, and Metlakatla. Around 1.5 to 3.0 inches has fallen for Petersburg and Wrangell, and around 1.5 to 3.0 inches has fallen near Sitka. Around 1.0 to 3.0 inches with possibly locally higher amounts, particularly near Ketchikan and Metlakatla, of rain is expected through Saturday night. On Sunday, 1.0 to 2.0 inches of rain for the central panhandle and 1.5 to 3.0 for the extreme southern panhandle is possible. Areas with a pre-existing snowpack, both from recent accumulations as well as the deep, previous snowpack, may have additional runoff. Small streams and rivers are beginning to respond, and current have high uncertainty for exceedence of flood stage. Ward Creek above Lake Connell Dam is currently experiencing minor flooding. Otherwise, current forecast reflects these rivers saying within their banks, however, uncertainty in snowpack depth, temperature, and runoff potential could lead to minor flooding. Gusty winds at sea level ranging from 40 to 60 mph are likely along the southern panhandle through Friday night. This combination of weather hazards could lead to possible isolated landslides along steep slopes. Conditions for the possibility of flooding and possible isolated landslides will be maximized Friday night decrease by Saturday morning. Stream flows in rivers may quickly rise and may exceed flood levels. Heaviest rain for the Sunday system is possible during the morning hours with increasing wind gusts throughout the day. Wind gusts is likely to maximize overnight Sunday into Monday. This combination of factors, along with accumulation from the expected rain for today and Saturday.
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. Flooding may occur in poor drainage areas. Storm drains should be kept clear of debris as much as possible. All residents on or near mountain slopes should be prepared for possible landslides. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
ID: urn:oid:2.49.0.1.840.0.0cfca5e1db9539602a61e862e67b3e4fee0d23a7.002.1 Codes: AKZ323, AKZ326, AKZ327, AKZ328, AKZ329, AKZ330, AKZ331, AKZ332 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0cfca5e1db9539602a61e862e67b3e4fee0d23a7.002.1