Sources of weather and climate data
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The Climate Prediction Center posted its latest outlook maps yesterday for December and December through February. The maps are shown below. To interpret these maps, you need to know that the probabilities start out with an equal chance of below normal (33.3%) or lowest third of all values, above normal (33.3%) or upper third of…
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In the conference I’m attending today, one of the speakers presented PDSI data derived from tree rings going back to about 400 AD. It is presented as a series of grid points across North America. If you are interested in a longer-term perspective on climate that goes back farther than the instrumental records, you might…
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I’m meeting today with other scientists on the Animal Agriculture and Climate Change research project that helps fund this blog. One of the topics for discussion was the AACC resources page at https://animalagclimatechange.org/resources/. This page now has a search capability which allows you to look for resources related to specific species, climate topics, mitigation and…
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Here in Athens GA, it has rained every day so far this November. It is raining now as I write this. That makes seven days in a row with measurable rainfall. My mushrooms are doing great! I’ve been asked more than once how unusual this is. To answer this question, the easiest source of information…
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I got a phone call today from a peach producer here in Georgia who was wondering why the chill hours this year are so low compared to previous years. For example, near my office in Watkinsville GA we have only received 28 chill hours from October 1 through yesterday compared to 79 in 2014, 62…
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A rare occurrence of a tropical cyclone (equivalent to a hurricane in the Atlantic) making landfall on the Arabian peninsula is expected to occur this week as Chapala moves west towards Yemen and Oman. Some areas of the desert countries could receive up to 8 years’ worth of rain in 1 to 2 days. Chapala…
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With just a couple of (mostly dry) days left in October, the Southeast Regional Climate Center’s Perspectives map shows the huge variation in rainfall across the Southeast. Charleston and Columbia have set new records for October rainfall in the large storm that hit them early in the month. By comparison, a number of stations in…