Mid-Term Short-Term

Welcome to the Alaska real-time forecast page! This product upgrades our longstanding MM5 forecasts with higher resolution, greater coverage, and longer forecast periods, performed with the WRF model. The MM5 forecasts are still ongoing and can be found here. Comments and suggestions are welcome! (e-mail)

Mid-Term Forecasts (16 days)

Current Cycle: 11/07/2009 00 UTC

Fields	Alaska Region 20 km grid (16 day forecast, output every 6h)
	Days 1–4	Days 5–8	Days 9–12	Days 13–16	16-day Loop
Surface Fields
Sea Level Pressure / Surface Temperature / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
Accumulated Precipitation	click  loop	click  loop	click  loop	click  loop	click  loop
Accumulated Precipitation (Convective)	click  loop	click  loop	click  loop	click  loop	click  loop
Accumulated Precipitation (Large Scale)	click  loop	click  loop	click  loop	click  loop	click  loop
Precipitation Category	click  loop	click  loop	click  loop	click  loop	click  loop
Snow Water Equivalent (on ground)	click  loop	click  loop	click  loop	click  loop	click  loop
Integrated Cloud Water	click  loop	click  loop	click  loop	click  loop	click  loop
Total Precipitable Water	click  loop	click  loop	click  loop	click  loop	click  loop
Radar Reflectivity (simulated)	click  loop	click  loop	click  loop	click  loop	click  loop
Planetary Boundary Layer Height	click  loop	click  loop	click  loop	click  loop	click  loop
Upper Air Fields
850 hPa Height / Temperature / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
700 hPa Height / Vertical Velocity / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
500 hPa Height / Relative Vorticity / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
300 hPa Height / Potential Vorticity / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
1000–500 hPa Thickness	click  loop	click  loop	click  loop	click  loop	click  loop
Cloud Top Temperature	click  loop	click  loop	click  loop	click  loop	click  loop
Storm Fields
Storm Track / SLP / Winds	click  loop	click  loop	click  loop	click  loop	click  loop
CAPE	click  loop	click  loop	click  loop	click  loop	click  loop
LFC	click  loop	click  loop	click  loop	click  loop	click  loop
LCL	click  loop	click  loop	click  loop	click  loop	click  loop

Short-Term Forecasts (2 days)

Current Cycle: 11/07/2009 12 UTC

Fields	NAM – Alaska 11 km grid (0–48h, every 3h) (Domain 1)	Fairbanks Region 3 km grid (0–48h, every 2h) (Domain 2)	Fairbanks 1 km grid (4–48h, every 2h) (Domain 3)	Anchorage Region 3 km grid (0–48h, every 2h) (Domain 4)	Panhandle 6 km grid (0–48h, every 2h) (Domain 5)	North Slope 6 km grid (0–48h, every 2h) (Domain 6)
Surface Fields
Sea Level Pressure / Surface Temperature / Winds	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Accumulated Precipitation	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Accumulated Precipitation (Convective)	click  loop	-	-	-	-	-
Accumulated Precipitation (Large Scale)	click  loop	-	-	-	-	-
Precipitation Category	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Snow Water Equivalent (on ground)	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Integrated Cloud Water	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Total Precipitable Water	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Radar Reflectivity (simulated)	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Planetary Boundary Layer Height	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Upper Air Fields
850 hPa Height / Temperature / Winds	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
700 hPa Height / Vertical Velocity / Winds	click  loop	-	-	-	click  loop	click  loop
500 hPa Height / Relative Vorticity / Winds	click  loop	-	-	-	click  loop	click  loop
300 hPa Height / Potential Vorticity / Winds	click  loop	-	-	-	click  loop	click  loop
1000–500 hPa Thickness	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Cloud Top Temperature	-	click  loop	click  loop	click  loop	click  loop	click  loop
Skew-T/log-P	-	-	Fairbanks loop	Anchorage loop	Juneau loop	Barrow loop
Storm Fields
Storm Track / SLP / Winds	click  loop	-	-	-	-	-
CAPE	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
LFC	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
LCL	click  loop	click  loop	click  loop	click  loop	click  loop	click  loop
Aviation Products
Icing Potential	click  loop	-	-	click  loop	click  loop	-
Icing Potential Cross Sections:
Anchorage – Cold Bay	click  loop	-	-	-	-	-
Anchorage – Kodiak	click  loop	-	-	-	-	-
Anchorage – Bethel	click  loop	-	-	-	-	-
Anchorage – Fairbanks	click  loop	-	-	-	-	-
Anchorage – Nome	click  loop	-	-	-	-	-
Fairbanks – Barrow	click  loop	-	-	-	-	-
Kotzebue – Barrow	click  loop	-	-	-	-	-
Juneau – Yakutat	click  loop	-	-	-	-	-
Juneau – Sitka	-	-	-	-	click  loop	-
Sitka – Ketchikan	-	-	-	-	click  loop	-
Ice Type	click  loop	-	-	click  loop	click  loop	-
SLD Potential	click  loop	-	-	click  loop	click  loop	-
Supercooled Liquid Water Cross Sections
Juneau – Sitka	-	-	-	-	click  loop	-
Sitka – Ketchikan	-	-	-	-	click  loop	-
Freezing Level	click  loop	-	-	click  loop	click  loop	-
Estimated Flight Regulation Category	click  loop	-	-	click  loop	click  loop	-

Click geographic region (domain) names to see terrain maps.

Click field names for text descriptions.

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