Copper River Basin Hydrologic Outlook

A hydrologic outlook has been issued for the Copper River Basin. Significant rainfall is expected for the Copper River Basin Tuesday evening through Wednesday. 1 to 3 inches of rain is possible across portions of the basin, with the highest amounts likely along the Wrangell and Chugach Mountains, including locations along the Tok Cutoff, Nabesna Road, Edgerton Highway, and McCarthy. Read More >

375
FNAK71 PAFC 230003
FWSAER

Spot Forecast for Nelchina Glacier...AK-DOF
National Weather Service Anchorage AK
403 PM AKDT Tue Jul 22 2025

Forecast is based on forecast start time of 0700 AKDT on July 23.
.DISCUSSION...

Rain is expected overnight tonight (Tuesday Night) such that the
area around the Nelchina Glacier Fire with the most likely amount
ranging between 0.50 and 0.75 inches. Rain will taper off
Wednesday with additional showers in the afternoon/evening. Most
additional showers will be light and generally sparse before
diminishing further into the overnight. Afternoon isolated showers
are possible again Thursday, but little to no rainfall generally
expected.

Otherwise, cool conditions will persist with wind prevailing from
the north when not otherwise light/variable.

Looking ahead, no significant fire weather patterns look to shape
up over the next few days. The next best chance of wetting rain
after tonight will occur Friday into Saturday, but at this time it
doesn`t appear like more a tenth or two of rainfall.

.WEDNESDAY...

Sky/weather.........Cloudy (90-100 percent). Numerous rain showers
in the morning, then scattered rain showers in
the afternoon.
CWR.................20 percent.
Chance of pcpn......60 percent.
Tstm Coverage.......None.
Max temperature.....Around 58.
Min humidity........63 percent.
Wind (20 ft)........North winds 5 to 8 mph.
Mixing height.......3500 ft AGL.
Transport winds.....North around 14 mph.
Pcpn amount.........0.15 inches.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Scattered rain
showers in the evening, then slight chance of
rain showers overnight.
CWR.................7 percent.
Chance of pcpn......40 percent.
Tstm Coverage.......None.
Min temperature.....Around 41.
Max humidity........91 percent.
Wind (20 ft)........Light winds becoming northwest 6 to 9 mph
overnight.
Mixing height.......400 ft AGL.
Transport winds.....North around 10 mph.
Pcpn amount.........0.08 inches.

.THURSDAY...

Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
rain showers.
CWR.................0 percent.
Chance of pcpn......20 percent.
Tstm Coverage.......None.
Max temperature.....Around 58.
Min humidity........51 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph in the morning
becoming light.
Mixing height.......5200 ft AGL.
Transport winds.....North around 6 mph.
Pcpn amount.........0.00 inches.

$$
Forecaster...Brown
Requested by...Jenny Moser
Type of request...WILDFIRE
.TAG 2518244.4/AER
.DELDT 07/22/25
.FormatterVersion 2.0.0
.EMAIL jenny.moser@alaska.gov