Meteorological history | |
---|---|
Formed | August 31, 1970 |
Dissipated | September 5, 1970 |
Tropical storm | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 60 mph (95 km/h) |
Lowest pressure | 992 mbar (hPa); 29.29 inHg |
Overall effects | |
Fatalities | 23 indirect |
Damage | $1 million (1997 USD) |
Areas affected | Arizona, Utah, Colorado, New Mexico, Baja California |
IBTrACS | |
Part of the 1970 Pacific hurricane season |
Tropical Storm Norma was the fourteenth named tropical cyclone of the 1970 Pacific hurricane season. The storm formed off the coast of Mexico and intensified rapidly, peaking as a strong tropical storm on September 3, before starting a weakening trend. It dissipated before making landfall on Baja California.
While the storm never made landfall, the remnants from the storm fueled the Labor Day Storm of 1970, causing floods in Arizona that resulted in heavy damage and loss of life. The rainfall from this storm broke records, mostly for 24-hour rainfall totals. Despite not being tropical when the damages were done, Norma is considered to be the deadliest disaster in Arizona history.[1]