Questions: 1. Identify an area of directional divergence (diffluence) on the 500

Question

Questions:

1. Identify an area of directional divergence (diffluence) on the 500-mb map that contributed to the storm's development and path.

2. The surface low moved from southeastern Colorado to north-central Kansas (375 miles) from November 9th, 1200z, to November 10th, 0000z. How did this speed compare with the 500-mb wind speeds in this region?

Another question: In the central and eastern United States, what air masses typically clash in association with mid-latitude cyclones? How do contrasts in these air masses lead to precipitation?

For the first question, you can just type out the relative location where difluence occurs.

Thanks!!

3580 460 5400 5340 20 5280 3340 3400 $460 5520 5640 5580 640 5400 5700 5760 5760 5820 5820 5880 5880 Figure 8-13.500-mb map, November 9, 1200z.

Explanation / Answer

1. The diffluence occurs over Montana

2. The surface low speed is almost similar to the 500mb wind speed in that particular region. The contours are fairly spaced in that region (the maximum 500 mb wind speed is found in Southern California and Northern Baja California (the contours are spaced tightly which signifies higher wind speed)

3. In mid lattitude cyclones, maritime tropical air mass (mT), maritime polar air mass (mP), continental polar (cP) and continental tropical (cT) air masses collide to form the mid lattitude cyclones. The contrasts in these air masses create a low pressure center along the front, which forces the moist air mass from the gulf of mexico to condense to form precipitation. If the influence of the polar air mass is greater, there may be a formation of snowstorms in that area.

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