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June 2010 - Report and Summary

June 2010 was warm and very wet. In fact, it was the second wettest June on record, surpassing June 1973 with its 10.03 inches for that mark. June 10, 2010 is the wettest June day ever. Compared with June 2009, the month was 1.5 deg. Warmer, and 10.16 inches wetter. Year-to-date rainfall 6.83 inches greater in 2010 than in 2009. The thirty-day outlook had called for below normal temperatures and above normal precipitation.

The week May 30-June 5 saw temperatures about 5 degrees above normal, and precipitation about one-third normal. Storm systems early and late in the week brought the rainfall. These managed to puncture the persistent upper air high pressure ridge which was responsible along with dry soils and vegetation for the very warm temperatures. The second system, which crossed on the 2nd and 3rd, brought heavy rains of between one and three inches between Palestine and Lufkin. Otherwise, rainfall was spotty and amounts variable between none and two inches. The week's average temperature was 81.7 deg., which was 0.8 deg. Warmer than the previous week. Rainfall was 0.29 inch. Compared with the same week in 2009, the week was 8.3 deg. Warmer, and 0.16 inch drier.

The week June 6-12 saw temperatures about 3 degrees above normal, and rainfall about 1000 percent of normal. Torrential rains struck the area on June 9 and 10 as a slow-moving tropical low pressure system crossed from southwest to northeast. Between 9.0 and 12.0 inches of rain fell from western Smith County westward through parts of Anderson, Henderson, Van ?Zandt, and into Kaufman Counties. The 7.38 inches of rain which fell in Tyler on June 10 was the wettest June day on record, and the fourth wettest single day since records began in 1896. The mid-week rainfall brought Tyler's year-to-date precipitation total to normal. Isolated showers fell on the 8th ahead of the system, with warm and dry weather beginning and ending the week. The week's average temperature was 81.7 deg., identical with the previous week. Rainfall was 9.66 inches. Compared with the same week in 2009, the week was 1.5 deg. Warmer, and 8.72 inches wetter.

The week June 13-19 saw temperatures about 5 degrees above normal, and no rainfall. There were isolated showers to the southeast of Tyler during mid-week afternoons from the sea-breeze front, but rain reached to only about 30 miles south of Tyler on the 16th. Upper air high pressure was responsible for the warm and mostly dry weather. Tyler's temperatures were held down by green vegetation and moist soils from the rains of the previous week. The week's average temperature was 84.9 deg., which was 3.2 deg. Warmer than the previous week. Compared with the same week in 2009, the week was 0.4 deg. Warmer, and there was no rainfall in 2009.

The week June 20-26 saw temperatures about 4 degrees above normal, and rainfall about 75 percent of normal. Upper air high pressure controlled the area's weather for much of the week. However, an easterly wave crossed on the 24th, bringing widespread rainfall to the southern two-thirds of the region. The week's average temperature was 84.6, and rainfall was 0.55 inch. The week was 0.3 deg. Cooler than the previous week. Compared with the same week in 2009, the week was 2.3 deg. Cooler, and there was no rainfall in 2009.

The final four days of the month began warm and dry, but numerous showers affected the region after the 28th. These were the result of a dissipating frontal boundary, and the effects of Hurricane Alex over the Gulf of Mexico.

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.

June 2010

MX MN OBS PCPN REMARKS

June 2010, RECORDS AND SUMMARY:

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