Updated: 4:00 PM AKDT on August 27, 2015
Rain...becoming heavy at times late. Lows around 52. Southeast wind 10 to 20 mph.
Rain...heavy at times in the morning...then rain in the afternoon. Highs around 56. Southeast wind 10 to 15 mph.
Showers. Lows around 51. Southeast wind 10 to 15 mph.
Showers. Highs around 56. Southeast wind 10 mph.
Showers. Lows around 51. Southeast wind 10 to 15 mph.
Rain. Highs around 54. Lows around 51.
Rain likely. Highs around 55. Lows around 49.
Cloudy. Chance of rain. Highs around 56.
Mostly cloudy. Lows 44 to 49. Highs around 57.
540 PM akdt Thu Aug 27 2015
... Moderate to heavy rain continuing for the Panhandle into Friday
A strong front is moving through the Panhandle and will stall over
Southeast Alaska by Friday. Heavy rain continues to fall over the
northern Panhandle with an additional one half to 1.5 inches of rain
expected through Friday. The southern Panhandle will see upwards of
2 to 4 inches of rainfall through Friday night.
Area rivers and streams will continue to rise through Friday but
none are expected to exceed bankfull at this time.
Personal Weather Stations [Add your weather station!]
Location: Pearl F Street, Petersburg, AK
Updated: 1:25 AM AKDT
|Temperature: 53.8 °F||Dew Point: 52 °F||Humidity: 94%||Wind: North at -||Pressure: 29.62 in||Hourly Precipitation: -||Graphs|
Location: 25AE Otness Subdivision, Petersburg, AK
Updated: 1:27 AM AKDT
|Temperature: 52.0 °F||Dew Point: 52 °F||Humidity: 100%||Wind: Calm||Pressure: 29.49 in||Hourly Precipitation: 0.06 in||Graphs|
Location: Papke's Landing, Petersburg, AK
Updated: 1:15 AM AKDT
|Temperature: 52.2 °F||Dew Point: 52 °F||Humidity: 99%||Wind: Calm||Pressure: 29.60 in||Hourly Precipitation: -||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Southeast Alaska forecast discussion National Weather Service Juneau Alaska 353 PM akdt Thursday Aug 27 2015 Short term...the Panhandle is becoming gradually wetter as the day wears on. An upper level trough is dropping southeast from the Alaska Peninsula and is dragging what is left of an atmospheric river that was drawing significant tropical moisture into SW Alaska for the last two days. While the remains of this moisture stream are not as potent as when it was in the Bering, precipitable water values are still registering around 1 inch or 120 to 140 percent of normal across the Gulf. At the surface the upper trough is spinning up a surface low in the northern Gulf with a front that is spreading across the eastern Gulf. The initial heavy rain bands have been in Yakutat most of the morning and have just reached the northern Panhandle just after noon. These rain bands will spread into the central and southern Panhandle by this evening. Winds have also started to kick up across the northern Panhandle with gusts to 33 knots at Skagway, 39 knots at Eldred Rock, and gusts to 25 knots at Juneau being the highest observed gusts so far. These winds will remain gusty through the evening but will gradually subside by late evening. The southern Panhandle will be the opposite as winds will be increasing this evening as the front approaches that area. As a result small craft advisories and a few strong wind headlines remains up in various areas of the Panhandle tonight. Into tomorrow the rain will be lightening up across the north but will be continuing and be heavy at times across the southern Panhandle as the front stalls. Areas from around Kake and Cape Decision eastward will see the brunt of the heavy rain on Friday with upwards of 2 to 3 inches expected through Friday afternoon. Winds will also remain gusty with small craft winds continuing for Clarence Strait tomorrow but they should remain below strong wind criteria. Behind the low, winds switch around to the north and with a cool high pressure system strengthening in the Yukon some outflow winds will be blowing out of the usual passes in the northern Panhandle. Expect winds to reach small craft criteria Friday morning but I do not expect anything higher as the pressure gradient is not that strong and the air mass in Canada is cool not cold plus the strongest part of it is over the Alaska interior farther west. Short range models were in good agreement through the period with only a few differences noted here and there. Generally used hi-res NAM for updates today. Long term.../ Friday night to Thursday / the short wave aloft that moved south to the Gulf of Alaska through Friday will help to open the closed low that had been persisting about 600 nm west of the Continental U.S. Coast around 43n. The newly reformed trough will be 'open' early Saturday. The short wave feature is next expected to lift the southern end of the trough inland across the Pacific northwest through early Sunday morning. Another short wave moving southeast across western Alaska should reach the western Gulf early Sunday morning and be moving into the southeast Gulf by Sunday afternoon. Middle Range models solutions are beginning to converge on a more organized solution for Sunday however there remain some issues. It does looks like a low will move across the southern Panhandle Sunday and Sunday night. Do expect another burst of middle tropical moisture to work its way back into the Gulf in a round about way from the southern Bering Sea for the weekend. That moisture will be tapped for the Sunday feature to spread more rain over the southern Panhandle. Best rains may end up south of the Panhandle but will need to watch this to see if the low track could be little further north...in which case the southern Panhandle will get another soaking. For the moment quantitative precipitation forecast numbers are not that out of Ordinary for an early Fall storm feature. Building ridge aloft and at surface along roughly 160w will build east from the early part of the week to be over the Gulf by Wednesday night. Therefore the tapering off the precipitation and drier pattern middle week still looks very possible. The forecast adjustments to Sunday night were based on a blend of the European model (ecmwf) and NAM in mind. Confidence is good lowering to average headed into weekend. && Hydrology...the moderate to heavy rainfall will make area rivers and streams rise over the next 24 hours. The taiya river and Montana creek have the possibility of reaching bankfull this evening as the initial front moves through but that is about it for the gaged rivers and streams. Smaller non-gaged streams may reach bankfull later tonight and tomorrow especially across the southern Panhandle as the front stalls. && Ajk watches/warnings/advisories... public...strong wind until 10 PM akdt this evening for akz025. Strong wind until 4 PM akdt this afternoon for akz018. Marine...Gale Warning for pkz012. Small Craft Advisory for pkz011-013-022-031>036-041>043-051-052. && $$ Eal/bezenek Visit US at http://www.Weather.Gov/Juneau