Oahu, Hawaii - Tornado & Record Hail Size 9th March 2012
Posted 26 March 2012 - 02:41
Posted 26 March 2012 - 09:08
From news reports looked like it occurred on 9th March. Does anyone have an archived synoptic chart to post???
News report gave tornado's direction as northwest - southeast. This suggests a synoptic pattern where cold air flowed southeastwards across progressively warmer seas to unusually southerly latitudes. The tornado was either spawned by a trough in this cold air, or perhaps by topography??? I have not yet looked at the relief of the local area, so cannot be sure just now.
Damage would suggest winds in excess of 70mph, perhaps to T2 strength, near 100 mph.
Posted 26 March 2012 - 12:59
Nailed it. Slow moving trough, easterly at the surface, southwesterly over the top. Ascent for Hilo shows stacks of Cape, and note the wind shear and veer. Classic.