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The lack of rain across the region along with the warm temperatures has led to an expansion in drought and dry conditions across all of the region except for the Florida Peninsula. Severe (D2) drought has reappeared in North Carolina and Virginia. Moderate (D1) drought has also significantly expanded across Puerto Rico. Conditions may continue…
Posted in: Drought -
If you use daily climate normals for temperature and precipitation, you can now find the new updated ones for 1991-2020 available in tabular form from Jan Null at https://ggweather.com/normals/daily91.htm.
Posted in: Sources of weather and climate data -
The latest monthly summary for North Carolina’s climate is linked here. In it, they look at one of their driest Novembers on record and discuss how it is impacting the development of drought there.
Posted in: Climate summaries -
December 1 marks the beginning of climatological winter, which corresponds roughly to the coldest 90-day period in the year across most of the country. Climatologists use December 1 through February 28 (or 29 in a leap year) as the winter period rather than using astronomical seasons. The map below from Brian Brettschneider @Climatologist49 shows this…
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NOAA released their winter outlook in late November. It provides a detailed look at what to expect knowing that we are now in a La Nina that should last through the winter and into spring. You can see maps of the climate variations in each of the first- and second-year La Ninas over the last…
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Got this update from the PRISM climate group in Oregon. Maybe it is something that you can use if you do climate studies: We are pleased to announce the release of updated PRISM 1991-2020 gridded normals datasets for the conterminous United States. Elements include precipitation; minimum, maximum, and mean temperature; mean dew point; and minimum…
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Today marks the last day of the official 2021 Atlantic hurricane season. While it ended up very quiet compared to what I expected, it still was one of the most active seasons on record as well as the most costly, according to CNN. A second story on the season from Yale Climate Connections is embedded…