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March 2012 - Report and Summary

March 2012 was much warmer and much wetter than normal. Compared with March 2011, the month was 4.6 deg. Warmer and 6.66 inches wetter. March 2011 was the driest March on record. March 2012 becomes the third warmest March on record, replacing March 1910. The warmest March on record was in 1907, which was 1.8 deg. Warmer than March 2012. Year-to-date rainfall through month's end was 6.36 inches greater in 2012 than in 2011.

The thirty-day outlook had called for above normal temperatures and near normal precipitation.

March began warm, though a cold front on the 3rd brought temperatures back to near normal values, where they remained with slow warming until a major storm system crossed between the 8th and 11th. This feature brought rains of between two and five inches to the area.

Following its departure. An upper air high pressure system settled over the region. The Sub- Tropical high built in unusually early. The result was very warm temperatures along with high humidities beginning on the 12th and continuing through the 19th.

Another wet storm system crossed on the 20th and 21st, with between two and six inches of rainfall in the region, and severe weather over the southeast on the morning of the 20th. Numerous streams went into flood on the 20th. This event ended the drought.

Cooler temperatures returned through the morning of the 24th. At that time, the Sub-Tropical high built back, and temperatures went back up above normal.

Weak upper air low pressure over West Texas caused scattered showers on the 29th and 30th, and lowered temperatures slightly.

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.

March 2012



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