Tornado Threat Forecast: August 5-11, 2012

1-3 DAY


Sunday

Northeastern Mid-Atlantic — POTENTIAL: Very Low — CONFIDENCE: High
Storms forming ahead of a cold front are in an environment with enough directional shear for a tornado, but speed shear and instability are on the low end.

Monday

No tornadic activity expected.

Tuesday

No tornadic activity expected.

4-7 DAY


Wednesday

Northeastern Mid-Atlantic — POTENTIAL: Very Low — CONFIDENCE: High
A weak shortwave disturbance will work into the northern Mid-Atlantic and Northeast, providing enough directional shear for the potential for a tornado, but like Sunday the speed shear in the low to mid levels will be fairly weak, along with low amounts of CAPE.

Thursday

Northern Plains — POTENTIAL: Very Low — CONFIDENCE: Normal
A shortwave trough working through south-central Canada could trigger storms in the northern Plains, but weak speed shear in the low-levels and a fairly dry low-levels will inhibit storms from becoming tornadic.

Friday

Northeastern U.S. — POTENTIAL: Low — CONFIDENCE: Low
The European operational model develops a strong disturbance as a fairly strong vort. max rolls through the northeastern U.S. while the GFS has a weaker, more progressive storm. The European appears to be a stronger/slower outlier compared to the GFS/Euro ensemble models, keeping confidence on the tornado potential low.

Saturday

No tornadic activity expected.

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Operational Meteorologist at WeatherBug (Earth Networks). See full bio.

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Operational Meteorologist at WeatherBug (Earth Networks). See full bio.

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