4 ms·
Localized precipitation can be unbelievable when a front stalls over an area, no major event like a typhoon / hurricane even required. The September 2013 floods
by cdr 12y ago
Localized precipitation can be unbelievable when a front stalls over an area, no major event like a typhoon / hurricane even required. The September 2013 floods in the front range of Colorado caused by a stalled front topped out at 9.6mm/hour on the worst day, with 430 mm total in 6 days - just under the average annual precipitation.
- kijin 12y ago9.6mm/hr is an order of magnitude lower than what this Japanese reservoir is expected to handle. It would be considered heavy rain, but not at all unusual, for monsoon season in East Asia. It happens a few times every summer, so most cities in Japan and Korea are equipped to handle it just fine. If such events were more common in Colorado, they would have been better prepared, too.
- kijin 12y agoWell, turns out you're right that there's no need for a typhoon in order to produce 100mm/hr of rain. Just yesterday, Hiroshima set a new three-hour rainfall record of 217.5mm. The peak was just over 100mm/hr. Massive landslides killed over 40 people. No typhoon was involved.