Jul 4, 2019
Similar to recent days, the atmosphere was highly unstable with SB/MUCAPE values in excess of 3000 J/kg, but was devoid of large scale forcing and ability to organize any storms. Specifically on this day, another weak boundary/outflow boundary was situated in the area that was enough to initiate storms by mid afternoon. Other conditions included weak mean layer winds, negligible bulk effective shear, and precipitable water values in excess of 1.5 inches. All told, the situation was ripe for slow
Source: NOAA National Weather Service Storm Events Database (event 842541). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Humboldt County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.