May in Georgia was very wet. Temperatures were normal to 2 degrees Fahrenheit above normal. There were reports of hail or strong winds somewhere in Georgia on at least 16 days.
The monthly average temperature in Atlanta was 70.2 degrees (.4 degrees above normal); in Athens 70.5 degrees (1.4 degrees above normal); Columbus 72.3 degrees (normal); Macon 72.4 degrees (1.4 degrees above normal); Savannah 74.2 degrees (1.4 degrees above normal); Brunswick 74.9 degrees (1.2 degrees above normal); Alma 73.8 degrees (normal); and in Augusta 72.2 degrees (1.7 degrees above normal). Several record-low maximum temperatures in the 60s were recorded in Savannah, Alma and Brunswick on May 18 and 19.
Except for a band south of Atlanta and in southwest Georgia, rainfall across the state was above normal according to radar estimates. Over 10 inches of rain was observed by radar in northeast Georgia and along the coast as well as a few isolated areas in Charlton and Terrell counties.
The highest monthly total from National Weather Service reporting stations was 9.69 inches in Savannah (6.08 inches above normal). The lowest was in Athens at 3.58 inches (.28 inches below normal).
According to the NWS, Columbus received 5.10 inches (1.48 inches above normal); Macon 5.73 inches (2.75 inches above normal); Alma 8.14 inches (5.10 inches above normal); Brunswick 5.33 inches (2.64 inches above normal); and Augusta 4.38 inches (1.31 inches above normal). Several daily records of rainfall were set during the month at these stations, including 2.08 inches at Alma on May 23.
The highest one-day total rainfall from the CoCoRaHS network was 3.77 inches measured at two stations on Skidaway Island on May 22. There was also a one-day total of 3.75 inches at Waycross on May 27. The highest monthly rainfall total was 13.08 inches near Dillard in northern Rabun County. Several other monthly rainfall amounts of over 10 inches were reported at Rabun Gap as well as near Savannah. The Georgia Automated Environmental Monitoring Network station in Rabun County reported 10.43 inches for May.
The rainy conditions in April and May contributed to problems with mosquitoes in south Georgia. Health authorities in Lowndes County reported a health emergency on May 6. Prior to the wet conditions about nine mosquitoes per trap were found in the county. After the onset of wet conditions, traps averaged 786 mosquitoes. Mosquitoes can act as carriers for multiple illnesses, including the West Nile virus.
No tornadoes were reported. The strongest storms occurred on May 2 and 3 with the passage of a strong derecho through north and middle Georgia. A derecho is a bow-shaped line of strong thunderstorms that move at speeds up to 60 miles per hour and can cause significant damage from straight-line winds. Numerous trees were reported down with the high winds observed throughout the month.
The drought conditions of the past few years may have contributed to the number of trees that were weakened and sustained damage. Some damage to vegetable crops was noted, and three center-pivot irrigation systems in central Georgia were destroyed by high winds and hail during the third week of May.
During the first of the month, farmers had trouble doing field work and planting due to dry conditions. After the first week, they had difficulty doing field work due to heavy rains. Powdery mildew and other plant diseases and the washing of fertilizer out of the fields were reported by a number of observers in the Weekly Weather and Crop Bulletin this month. Some farmers reported hay rotting in the fields and small grains sprouting from the heads as well as drowned tobacco plants.
By Pam Knox
University of Georgia
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May was wet, windy month in Georgia
Monday, March 9, 2009
Severe Weather Outbreaks Unusual for February
Temperatures were slightly above normal and rainfall was below normal for most of Georgia in February, according to data collected by the Georgia Automated Environmental Monitoring Network and the National Weather Service.
There were no temperature records broken or tied during the month. Most stations reported mean temperatures of 1 degree Fahrenheit above normal for the month. Athens reported the highest above-normal departure at 1.5 F. Savannah reported the lowest below-normal departure at 2.1 F.
The swings in temperature seen in January continued in February as a series of fronts moved through the region, bringing Arctic and Gulf of Mexico air by turns through Georgia. This is expected during the neutral El Niño-Southern Oscillation phase, whose effects linger, though a weak La Niña has developed in the Pacific.
Severe weather hit the state three times in February. On Feb.11, high winds were reported in far north Georgia with the development of a strong low-pressure system in the Ohio River valley.
On Feb. 18, the state experienced an unusual widespread outbreak of severe weather ahead of a low-pressure area that developed near the Gulf of Mexico and moved northeast along a cold front. Numerous reports of tornadoes and large hail along with high winds were reported in many parts of the state, causing an estimated $25 million.
One person was killed in Hancock County when a mobile home rolled over, and 22 injuries were reported across the state.
A hailstone estimated at 4.25 inches was reported in Coweta County, the largest hailstone ever officially reported in February in Georgia.
On Feb. 28, a strong weather system brought high winds and hail to Georgia. Numerous trees were downed and hail was reported in Bibb and Chatham counties.
Heavy rains fell across much of Georgia, including rainfalls of more than 3 inches along the north Georgia-Alabama border. Some localized flooding was reported by the NWS.
Despite the rainfall, drought conditions expanded slightly in east Georgia and along the coast. The entire state is considered in abnormally dry conditions, with moderate drought or higher covering over 75 percent of the state.
During the month, Atlanta received 3.70 inches (or 0.98 inches below normal), Athens 3.67 inches (0.72 inches below normal), Columbus 5.44 inches (0.96 inches above normal), Macon 2.32 inches (2.23 inches below normal), Savannah 1.33 inches (1.59 inches below normal), Alma 1.47 inches (3.36 inches below normal), Brunswick 1.83 inches (2.03 inches below normal) and Augusta 3.21 inches (0.90 inches below normal).
Only two small regions of Georgia received above normal rainfall: a narrow band stretching west to east near Augusta and a small swath northeast of Valdosta. Columbus reported a new daily record of 2.75 inches of precipitation on Feb. 28.
Dry, cool conditions delayed small grain growth and suppressed winter grazing for cattle. Due to temperatures below 20 F in southeast Georgia, blueberries farmers there lost as much as 65 percent of their Southern highbush blueberries, with scattered damage to their early rabbiteye blueberries.
By Pam Knox
University of Georgia
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