![]() These data are pulled daily from MesoWest and you can. These RF-based PQPFs perform best for the lower precipitation thresholds, which have the greatest climatological frequency. Click a station reading on the map to view a graph of the 24 hour accumulated precipitation as of 1200z. All data on this page are from automated. Inputs to the RFs include latitude and longitude as well as daily mean HREF ensemble mean forecast values of: temperature and dewpoint temperature at four atmospheric levels, 1-km above-ground-level reflectivity, surface-based CAPE and CIN, PWAT, hourly maximum wind components, 2-5 km updraft helicity, and forecast precipitation. Daily rainfall amounts are recorded as of 8am for the previous 24 hours. Contact Us Mobile Bookmark Page (CTRL-D) Never base any life decisions on weather information from this site or anywhere over the Internet. 24 Hr Forecast 48 Hr Forecast 72 Hr Forecast. The PQPFs are created using one random forest (RF) for each threshold. Extended 24 Hour Precipitation Forecast Map. RF probs (random forest threshold exceedance probabilities) report the probability (PQPF) that the mean 24-h precipitation totals over the surrounding 20-km x 20-km area will exceed the given threshold (currently 0.1-, 0.5-, 1-, or 3-in.). LPMM (localized PMM) is a new technique from Clark (2017, WAF) wherein the PMM calculation is restricted to grid points inside some radius of influence, preventing precipitation in geographically distant areas from influencing the local value. At each grid point, the ensemble mean value is replaced with a value from the full distribution of individual member forecasts whose rank matches the point's rank within the ensemble mean distribution. Please note: Data displayed on these charts are not fully quality-controlled. Conceptually, PMM (probability-matched mean) is a variation of the ensemble mean with the original ensemble amplitude restored. are connected to the remnants of Hurricane Kay so the potential for big rain totals exists. By amount: From highest to lowest By latitude: From north to south. ![]()
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