Hydrologic Outlook
Hydrologic Outlook
AKZ832-833-172000-
Hydrologic Outlook
National Weather Service Fairbanks AK
236 PM AKDT Fri May 16 2025
...Yukon River Breakup Status...
The Yukon River continues to hold sections of thermally degraded
in-place ice between Beaver and Tanana. These limited sections are
slowly breaking up and will continue to create ice runs they are
pushed out. Remaining ice should clear out by this weekend.
$$
hb
Hydrologic Outlook
PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031-
033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-063-065-
067-069-071-073-075-077-079-081-083-085-087-089-091-093-095-097-099-
101-103-105-107-109-111-113-115-117-119-121-123-125-127-129-131-133-
135-137-139-141-143-145-147-149-151-153-VIC010-020-030-180000-
Hydrologic Outlook
National Weather Service San Juan PR
425 PM AST Fri May 16 2025
...THE RISK OF FLOODING CONTINUES FOR PUERTO RICO AND THE VIRGIN
ISLANDS THROUGH SATURDAY...
An upper-level trough moving across the Dominican Republic, combined
with abundant moisture, will result in the development of showers
and thunderstorms across the local islands today and Saturday.
Today, showers are expected to develop across the islands, with the
highest accumulations across the interior, west and northwest Puerto
Rico. Then, tonight, as the trough crosses the region, the showers
and thunderstorms will spread across the eastern half of Puerto
Rico, including Vieques and Culebra, and also over the Virgin
Islands. This activity is expected to continue on Saturday too, but
the weather is expected to improve on Sunday, as the trough departs
toward the open Atlantic waters.
Based on the latest guidance, there is a moderate confidence in the
forecast (40-60%), and the rainfall amounts are still expected to
range from 2 to 4 inches with locally higher amounts.
Due to already saturated soils and rivers and tributaries running
well above normal levels, there is a risk for flooding across Puerto
Rico and the Virgin Islands through Saturday. Additional impacts
include landslide, urban, and flash flood in areas with the heaviest
amount of rainfall.
$$
ERG
Hydrologic Outlook
AKZ829-830-846-172000-
Hydrologic Outlook
National Weather Service Fairbanks AK
1040 AM AKDT Fri May 16 2025
...Yukon River breakup status...
The Yukon River is open from Tanana to downstream of Mountain
Village as of Thursday afternoon. Ice runs from upstream of Tanana
continue as ice degrades between Beaver and Rampart and are being
seen along many reaches of the Yukon. Water levels remain low and no
flooding is anticipated. This is the last breakup condition report
expected for the Yukon River from Tanana to Grayling unless anything
of note occurs.
$$
hb
Hydrologic Outlook
AKZ828-172000-
Hydrologic Outlook
National Weather Service Fairbanks AK
1025 AM AKDT Fri May 16 2025
...Koyukuk River breakup status...
The Koyukuk River is mostly open between Hughes and its confluence
with the Yukon River. Upstream of Hughes, short sections of
in-place ice remain and will continue sending runs of ice downstream
as breakup progresses.
$$
hb
Hydrologic Outlook
AKZ825-826-172000-
Hydrologic Outlook
National Weather Service Fairbanks AK
1009 AM AKDT Fri May 16 2025
...Yukon River breakup status...
The Yukon River is open from Tanana to about 10 miles downstream of
Mountain Village as of Thursday afternoon. Thermally degraded and
lifted ice remains in the middle and south mouths and at Emmonak and
Alakanuk. Ice runs from upstream of Tanana continue as ice degrades
between Beaver and Rampart. Heavy ice runs are still being seen
along many stretches of the Yukon. Water levels remain low, however
if an ice jam forms at the breakup front, water levels could rise
quickly behind it causing localized minor flooding. River Watch
flights are done for the season.
$$
hb
