February 13, 18 UTC 00-24 hr 250 mb height, wind speed and 850 mb wind

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February 13, 18 UTC 00-24 hr 250 mb height, wind speed and 850 mb wind

Notes:

This loop of 250 mb heights, wind speed and 850 mb wind showed how a southeasterly low-level jet was forecast to develop in the right entrance region of a pronounced upper-level jet entrance region during the storm. Speeds within the low-level jet were forecast to exceed 60 kts. Frontogenesis (shown in later slides) developed in the convergence zone at the leading edge of the jet.