Monday, April 5, 2010

Tornadoes possible today in MO,SRN IA and nearby areas!


METD WEATHER
Akshay Deoras
Extreme Weather Forecaster,

Concerning- Severe Weather week in USA and Monday SLIGHT severe Weather Risk

As mentioned earlier, Risk for severe storms advances for parts of MO. Latest NAM models indicating a adequate low level flow mainly over IOWA-Kansas-NE-MO border for the 12z+ with the main trough at the upper level. The earlier alert continues with upgraded risk for border areas. SPC gets 5% risk of tornadoes in NE KS,SE NEBRASKA,SRN IOWA,NRN MO and OHIO WEST. Sufficient unstable air mass at the lower levels favoured by destabilised atmosphere will lead to severe thunderstorms. For the 1z-12z period, threat seems to be for tornadoes in MO but as new convection occurs in the new Kinematic and thermodynamic environment things will change. The new CAPE will be 2000J/kg which is very high and the EHI seems to settle round 3.0. CAPPING will occur but it will be away before the system. A warm front will drive these storms and I w'd bet for tornadoes into the threat area.
Tuesday and Wednesday another rounds of severe thunderstorms. Update on it-- coming later
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