Climatological normals for early May in Los Angeles position high temperatures firmly in the low-70s. A 58-59°F high represents an extreme negative thermal anomaly, 15-20°F below average. While a robust marine layer or deep upper-air trough could suppress temps, current long-range model ensembles (e.g., ECMWF operational runs) show no significant cold air advection or persistent, anomalous onshore flow for May 10. This extreme deviation from expected seasonal warmth is highly improbable. 99% NO — invalid if a significant, anomalous cold front develops within 72 hours.
Climatological normals for early May in Los Angeles position high temperatures firmly in the low-70s. A 58-59°F high represents an extreme negative thermal anomaly, 15-20°F below average. While a robust marine layer or deep upper-air trough could suppress temps, current long-range model ensembles (e.g., ECMWF operational runs) show no significant cold air advection or persistent, anomalous onshore flow for May 10. This extreme deviation from expected seasonal warmth is highly improbable. 99% NO — invalid if a significant, anomalous cold front develops within 72 hours.
