A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >
Tiyan, GU
Weather Forecast Office
To learn more the new probabilistic tropical cyclone graphics, read our introduction here: Introducing New Probabilistic TC Graphics PDF
The cone graphics for the West Pacific are based on the following:
| Forecast Period (hours) | 2/3 Probability Circle, West Pacific Basin (nautical miles) |
|---|---|
| 12 | 35 |
| 24 | 50 |
| 36 | 65 |
| 48 | 80 |
| 72 | 120 |
| 96 | 165 |
| 120 | 225 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Tiyan, GU
3232 Hueneme Rd
Barrigada, GU 96913
(671) 472-0900
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