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November 2014 - Report and Summary

The month of November 2014 was cooler than normal, and saw near normal rainfall even traces of light snow on two days.

Compared with November 2013, the month was 0.6 deg. Cooler, and 0.94 inch drier. Year-to-date rainfall through month's end was 5.48 inches less in 2014 than in 2013. The thirty-day outlook had called for near normal temperatures and above normal precipitation. This was not changed with the October 31 revision.

November began seasonably cool, with warming on the 3rd ahead of a cold front and storm system which brought heavy rains on the 4th and 5th. The precipitation, with amounts of between two and six inches, was the result of a nearly continual strong flow of Gulf moisture overrunning the shallow cool air mass.

Warming returned on the 9th and 10th ahead of a major Arctic outbreak on the 11th. This was the result of Typhoon Nuri's causing the western upper air ridge to elongate, and bring down Polar Continental air from the Canadian Northwest Territories. The result was temperatures running between 15 and 20 deg. Below normal through the 18th.A reinforcing cold front on the 16th continued the cold air. Light snow fell in the area on the 13th and 16th.

Warming began on the 19th and continued through the 24th. Another storm system crossed on the 22nd and 23rd, bringing between one and three inches of rain to the area. Polar Maritime air entered the region on the 24th, persisting until Thanksgiving Day (27th). This sent temperatures back slightly below normal.

Tropical Maritime air then returned, sending temperatures well above normal through the 30th.

The reporting period for temperatures and phenomenon on each day is for the twenty-four hours ending at midnight hours GMT--6 p.m. CST and 7 p.m. CDT. The reporting period for precipitation is for the twenty-four hours ending at noon GMT--6 a.m. CST and 7 a.m. CDT. All times are given using the twenty-four hour clock, and are expressed in Greenwich Mean Time.

Observations are from NWS Station 41/9207/4 in Tyler, Texas. The term "normal" refers to averages from the standard climatic period 1971-2000.

November 2014



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