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April 2015 - Report and Summary

by Robert K. Peters, Ph.D. - National Weather Service Cooperating Observer

The month of April 2015 was warmer and very much wetter than normal. The thirty-day outlook had called for near normal temperatures and above normal precipitation. When revised on March 31, it was changed to above normal temperatures and near normal precipitation. Compared with April 2014, the month was 2.9 deg. Warmer, and 3.82 inches wetter. Year-to-date rainfall was 14.15 inches greater in 2015 than in 2014 signifying the end to the drought.

The first half of April was warm and wet. Upper air lows with attendant cold fronts crossed the region on the 5th, 9th, and 13th. These resulted in showers and thunderstorms, with severe weather on the evening of the 9th. Rainfall amounts were heaviest with the event of the 9th, running between one and three inches.

The cold fronts brought a day or so of cooling from the Tropical Maritime air which was in place otherwise. Each front retreated back north a day or so after initial passage as a warm front, bringing light showers.

A stronger system crossed on the 19th, affecting the region beginning on the afternoon of the 16th. Severe weather occurred in Tyler on the evenings of the 16th and 18th, with severe weather south and east of Tyler on the afternoon of the 19th. Heavy rains fell on the 16th and 18th in Tyler, with golfball-sized hail from Pounds Field southeastward to Bullard on the 18th. Roads were closed south and southwest of Tyler on the night of the 18th due to the heavy rains. A fatality occurred in Gladewater on the night of the 16th when a falling tree struck an automobile and killed an occupant.

Slight cooling came on the 20th and 21st with the associated cold front, followed by warming between the 22nd and 27th. Storm systems crossed between the 23rd and 25th, and again on the 27th and 28th. Severe weather accompanied both systems, with structure fires caused by lightning strikes on the early-morning of the 27th. The month ended cool, thanks to the cold front which accompanied the second system.

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.

APRIL 2015

MX MN OBS PCPN REMARKS

APRIL 2015, RECORDS AND SUMMARY:

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