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October 2013 - Report and Summary

The thirty-day outlook had called for near normal temperatures and near normal precipitation. October 2013 was slightly warmer and much wetter than normal. Compared with October 2012, the month was 1.8 deg. Warmer and 7.33 inches wetter. Year-to-date rainfall through month's end was 5.40 inches greater in 2013 than in 2012. October began dry, with no measurable rainfall in Tyler through the 11th. A trace did fall on the 2nd, associated with a weak disturbance.

Temperatures between the 1st and 5th ran above normal. A strong cold front on the evening of the 5th lowered temperatures below normal through the 10th, with a warm-up commencing that afternoon.

Temperatures ran above normal until the 15th. A strong storm system crossed on the 16th, bringing widespread heavy rainfall to the region, followed by modified Canadian air. This brought below normal temperatures through the 26th. A weak storm system crossed on the 22nd, with rainfall amounts of under one-fourth inch. Weak cold fronts followed the system on the 16th until another storm system crossed on the 26th. That system brought widespread rains of between one and two inches to the Tyler area overnight the 26th/27th, followed by a brief cool-down. On the afternoon of the 28th, Tropical Maritime air returned to the area, which warmed temperatures significantly. This was ahead of the storm system which ended the month.

That system brought very heavy rains to the central and southern counties from the morning of the 30th through the morning of the 31st. Amounts of seven to nine inches were common from Harrison through Rusk, Cherokee, and Anderson Counties. Amounts in Smith and Gregg Counties were between three and five inches.

The last twelve hours of the month saw strong west winds as a cold front moved into the region. Skies cleared with cooling temperatures for Halloween.

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.

October 2013



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