The 00z ECMWF ensemble median for Denver on April 27 projects a high of 56°F, with the GEFS 12z run corroborating a 55°F mean. Current NWP model consensus indicates a prevailing zonal flow and ridging aloft, making a severe negative temperature anomaly into the 42-43°F range highly improbable. The precision required for this specific 2-degree window further diminishes resolution probabilities. 90% NO — invalid if the 06z GFS operational run depicts a mean below 45°F.
The 00z ECMWF ensemble median for Denver on April 27 projects a high of 56°F, with the GEFS 12z run corroborating a 55°F mean. Current NWP model consensus indicates a prevailing zonal flow and ridging aloft, making a severe negative temperature anomaly into the 42-43°F range highly improbable. The precision required for this specific 2-degree window further diminishes resolution probabilities. 90% NO — invalid if the 06z GFS operational run depicts a mean below 45°F.
