Anchorage, Alaska

Regional Weather Alerts


     

Alert: Red Flag Warning
Area(s): Upper Kobuk Valleys; Lower Koyukuk Valley
Effective: 7aaeor51aa -> 8aaeor0aa
Onset: 7apeor0ap -> 7apeor0ap
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Fairbanks AK on 7aaeor51aa
Headline: Red Flag Warning issued July 6 at 11:51PM AKDT until July 8 at 12:00AM AKDT by NWS Fairbanks AK
Description: * AFFECTED AREA...Upper Kobuk Valleys and Lower Koyukuk Valley.

* TIMING...From noon Monday to midnight AKDT Monday night.

* THUNDERSTORM COVERAGE INDEX...4, Scattered to Numerous.

* WINDS...West 10 to 20 mph with gusts up to 30 mph. Stronger
gusts are possible in thunderstorms.

* HUMIDITY...As low as 30 percent.

* TEMPERATURES...Highs in the upper 80s.

* IMPACTS...Numerous wet thunderstorms across the interior will
bring frequent lightning strikes and gusty winds.

Alert: Red Flag Warning
Area(s): South Slopes Of The Central Brooks Range; Upper Koyukuk Valley; Dalton Highway Summits
Effective: 7aaeor46aa -> 8aaeor0aa
Onset: 7apeor0ap -> 7apeor0ap
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Fairbanks AK on 7aaeor46aa
Headline: Red Flag Warning issued July 6 at 11:46PM AKDT until July 8 at 12:00AM AKDT by NWS Fairbanks AK
Description: The National Weather Service in Fairbanks has issued a Red Flag
Warning for lightning, which is in effect from noon Monday to
midnight AKDT Monday night.

* AFFECTED AREA...South Slopes Of The Central Brooks Range,
Upper Koyukuk Valley and Dalton Highway Summits.

* TIMING...From noon Monday to midnight AKDT Monday night.

* THUNDERSTORM COVERAGE INDEX...4, Scattered to Numerous.

* WINDS...West 10 to 20 mph with gusts up to 30 mph. Stronger
gusts are possible in thunderstorms.

* HUMIDITY...As low as 30 percent.

* TEMPERATURES...Highs in the mid 80s.

* IMPACTS...Numerous wet thunderstorms across the interior will
bring frequent lightning strikes and gusty winds.

Alert: Hydrologic Outlook
Area(s): Lower Matanuska Valley
Effective: 6apeor37ap
Onset: 6apeor37ap -> 7apeor0ap
Severity: Unknown
Certainty: Possible
Urgency: Future
Issued By: NWS Anchorage AK on 6apeor37ap
Headline: Hydrologic Outlook issued July 6 at 4:37PM AKDT by NWS Anchorage AK
Description: ESFAFC

Water levels on the Matanuska River along the Old Glenn Highway are
expected to remain elevated through early this week due to a
combination of recent warm temperatures, diurnal trends in snow and
glacial melt upriver, and potential additional rainfall Monday and
Tuesday.

No additional bank erosion along the Matanuska River, particularly
between miles 13 and 15 near the Maud Road area, has been observed.
However, residents and river users should anticipate higher than
normal water levels and are advised to monitor the situation.

Reports on river conditions may be sent to the river forecast center
by calling 1-800-847-1739.

Locations affected include: Matanuska River along the Old Glenn
Highway between mile markers 13 and 15.

Alert: Special Weather Statement
Area(s): City and Borough of Sitka; Prince of Wales Island; Ketchikan Gateway Borough; Annette Island
Effective: 6apeor24ap
Onset: 6apeor24ap -> 7apeor0ap
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Juneau AK on 6apeor24ap
Headline: Special Weather Statement issued July 6 at 1:24PM AKDT by NWS Juneau AK
Description: Following a front bringing rain across the Panhandle today, a
developing low is expected to move into the SE Gulf Monday into
Tuesday. This system is still expected to bring enhanced rainfall
to the far southern Panhandle, particularly Ketchikan and
Metlakatla. Forecast confidence continues to grow that the less
impactful solution is still the most likely. This would have the
low continue to be more progressive and the moisture plume stay
further south before wrapping around to impact the eastern half of
Clarence Strait / Misty Fjords late Monday night into Tuesday
morning.

While overall 24-hr rain amounts are now ranging from around 0.75
for coastal communities on Prince of Wales Island to 1.5 inches
for Ketchikan and Metlakatla, the heaviest rainfall and rates are
expected along southerly facing mountains in eastern portions of
the Ketchikan Gateway Borough and Annette Island. It is not out of
the question for one of those areas to get an outlier amount of as
much as 2 inches. Fast-responding rivers and lakes may reach bank
full conditions, but no flooding is expected at this time. Winds
in Clarence Strait and the SE Gulf will increase out of the S and
SE with fresh to strong breezes (18 - 24 kt) for Monday morning as
it approaches the outer coast.

Later in the week, Thursday and Friday, it is looking like a more
impactful frontal system, with an associated weak to moderate
atmospheric river, will move over the Panhandle. This will
bring heavier rainfall & some relatively gusty conditions to a
more widespread area. The heaviest precipitation again looks to
focus on the southern Panhandle with isolated areas of 1.5 to 2
inches in 24 hours. The heaviest of this precipitation is expected
to fall Thursday over areas along the coast. Ensembles are
showing a >70% chance that winds along the NE Gulf will reach
strong breezes to Gale force winds of 30 to 35 kts. We will
continue to monitor this system as it gets closer.