Given a sentence in the Japanese, provide an equivalent translation in Lao that retains the same meaning through the translation. In translation, keep numbers as it is.

昼間1時間当たり10mmの雨が6時間以上降ったバンクーバーの川の5つが洪水の危険にある。

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
ແມ່ນໍ້າຫ້າສາຍຂອງ ແວນຄູເວີ້ ຢູ່ໃນຂັ້ນອັນຕະລາຍວ່າຈະເກີດນໍ້າຖ້ວມ ຍ້ອນຝົນຕົກໃນປະລິມານ 10ມມ ຕໍ່ໜຶ່ງຊົ່ວໂມງ ຕິດຕໍ່ກັນຫຼາຍກ່ວາ ຫົກຊົ່ວໂມງໃນຕອນກາງເວັນ.