An unprecedented rainfall event may be unfolding in southeastern Yemen and southwestern Oman, and by climatology and magnitude this may be one of the most extreme weather events worldwide in 2023. The very coarse resolution data from SSMIS suggests rainfall rates nearing or exceeding 1"/hr, and for this region, that essentially means
around half of the mean annual rainfall is falling every hour. As
doomhaMwx previously noted, models project that Tej may produce
one to two decades' worth of precipitation, a feat unfathomably extreme by any measure. The
upper-air sounding from Salalah this morning reported a total precipitable water value of 61.1 mm (2.41"). I'm not sure what the annual PWAT climatology is for the region, but such a high value would probably be highly uncharacteristic for the Yemeni/Omani coasts - model data suggests that moisture from Tej is producing PWAT values on the order of 5-6 standard deviations above normal. Prolific rainfall rates will probably lead to flooding of wadis, but hopefully the resulting damage is not too extensive.
Source: FNMOC