(Image source: Pixabay johnNaturePhotos)
Portland Airport & Downtown Portland
| Ice Storms | Date |
|---|---|
| Jan. 2004 | |
| Dec. 2016 | |
| Dec. 8, 2017 | |
| Jan. 7, 2017 | |
| Jan. 13-17, 2020 | |
| Feb. 14, 2021 | |
| Dec. 22, 2022 | |
| Jan. 13 & 15, 2024 |
(Image source: Pixabay AlainAudet)
| Snowfall | Date |
|---|---|
| 12.4" | Dec. 16, 1884 |
| 14" | Dec. 22, 1892 |
| 15" | Jan. 2, 1902 |
| 13.5" | Dec. 10, 1919 |
| 12.8" | Feb. 1, 1937 |
| 15.5" | Jan. 21 1943 |
| 10.60" | Jan. 13-4, 1950 |
| 12" | Feb. 12, 1995 |
| 11.8" | Jan. 10-11, 2017 |
Source: National Weather Service
(Image source: Pixabay Brigipix)
| Wind Storms | Date |
|---|---|
| 1880 | |
| Columbus Day Storm | 1962, Oct 12 |
| 1979, Feb 13 | |
| 1981, Nov 13-15 | |
| 1995, Dec 12 | |
| 2002, Feb 7 | |
| 2007, Dec 1 & 4 | |
| 2013, Sep 28-29 | |
| 2014, Dec 11 | |
| 2016, Oct 15 | |
| 2021, Oct 24 |
Source: Wikipedia.com
(Content and image source: Statesman Journal)
The National Oceanic and Atmospheric Administration has been tracking tornadoes for decades. This interactive map, which contains data from January 1950 to May 31, 2024 for all states, pinpoints where a cyclone touched down and traces its path of destruction. Details are provided for more recent tornadoes, including width and length of path, Fujita Scale (EF0-EF5), damage estimates, and whether someone was injured or killed in the storm. Sort by date or by deadly tornadoes.
The Oceanic Niño Index (ONI) has become the de-facto standard that NOAA uses for classifying El Niño (warm) and La Niña (cool) events in the eastern tropical Pacific. It is the running 3-month mean SST anomaly for the Niño 3.4 region (i.e., 5oN-5oS, 120o-170oW). Events are defined as 5 consecutive overlapping 3-month periods at or above the +0.5o anomaly for warm (El Niño) events and at or below the -0.5 anomaly for cool (La Niña) events. The threshold is further broken down into Weak (with a 0.5 to 0.9 SST anomaly), Moderate (1.0 to 1.4), Strong (1.5 to 1.9) and Very Strong (≥ 2.0) events.
(Content source: https://ggweather.com/enso/oni.htm)
