Products on this page are considered experimental. The calculation was also made for the probabilities of reaching 75% of normal by end of water year, 125%, etc., for these figures.Ĭontribution from Dr. Disclaimer: the near-real time data on this page is provisional and not subjected to the quality control procedures applied to our other data sets. The fraction of years that at least reached that threshold is the probability estimate. When rainfall rates exceed 1.00 inch per hour, or water level increases by 0.5 feet per hour, the ARMS system emails an alert to a County representative and to the Countys weather service. To arrive at the probabilities shown, the precipitation totals for the remaining months of the water year were tabulated in the long-term historical record (WY1948-2017 in these figures) and the number of years in which that precipitation total equaled or exceeded the amount still needed to reach normal were counted. Thus the odds of reaching normal by the end of the water year are just the odds of precipitation during the remaining of the year equaling or exceeding that remaining amount. How the probabilities above were estimated:Īt the end of a given month, if we know how much precipitation has fallen to date (in the water year), the amount of precipitation that will be required to close out the water year (on Sept 30) with a water-year total equal to the long-term normal is just that normal amount minus the amount received to date.
#YEAR TO DATE RAINFALL TOTALS BY ZIP CODE ZIP#
who died on alaska: the last frontier 2021 year to date rainfall totals by zip code. The bottom plots show the probability of reaching 100% (and other exceedances) of normal two year precipitation by the end of the next water year (combining the current and next water years). Home/hermione is voldemorts lost daughter fanfiction/ year to date rainfall totals by zip code. The top plots show the probability of reaching 100% (and other exceedances) of normal two year precipitation by the end of the current water year (combining the current and previous water years). The plots below combine the current water year with either the previous or the next water year.
The above methodology can be applied to time periods spanning multiple water years. Odds of Two Water Years Reaching Various Fractions of Normal Precipitation Totals Auburn CA radar weather maps and graphics providing current Rainfall Storm Total weather views of storm severity from precipitation levels with the option. Precipitation values in the database are totals for each station for each month. Below uses the same methodology above, but is calculated for various fractions (including 100%) of water year total precipitation.īelow flips the analysis and shows what water year total precipitation percentage has a 50% (and other exceedances) chance of being equaled or exceeded this year. Find data on monthly water conditions, precipitation levels, and drought.
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