Strong Storm Hits Boke
5 November 2013, 19:00 UTC: A strong thunderstorm that formed to the east of Boke was tracked by meteorologists as it strengthened into a dangerous storm just east of Boke at about 6:45 p.m. this evening.
The storm was detected to have lightning rates exceeding 40 flashes per minute by the Guinea Total Lightning Network.
The Total Lightning Detection System issued an automated Dangerous Thunderstorm Alert (DTA – Purple Polygon) for this storm for the likelihood of intense rain, frequent lightning and gusty winds. The DTA gave Boke about 20 minutes lead time before these affects hit.
Winds gusted to 71 km/hr as the storm approached with lightning flashing just to the east. When the storm rolled into the city, real-time observing instruments recorded a more that 5 degree C temperature drop in a matter of minutes.
Rain rates were intense, producing flash flooding as rain fell at a rate of more than 100 mm/hr. Over 40 mm of rain fell in less than 30 minutes.