![]() The nationally averaged temperature of 73.4 degrees F (23.0 degrees C) ranks as the second warmest July-September on record. During the July-September period, the United States as a whole experienced much above normal temperatures.Climate Highlights - July-September (3-month period) and Year-to-Date period.These two regions account for 4.2 percent of the area of the contiguous U.S. The two regions having the most severe PHDI on record are eastern New Mexico into western Texas and southwest Oklahoma, and northwestern Louisiana into adjacent eastern Texas. experienced the most severe drought in the 1900-present record, according to the Palmer Hydrological Drought Index (PHDI). ![]() Nearly all (97%) of Texas was in extreme to exceptional (D3-D4) drought, which is a record, and nearly four-fifths (79%) of Oklahoma was in extreme to exceptional drought. At the end of September, about a tenth of the United States remained in the worst category of drought, called D4 or exceptional drought, which has remained fairly constant since early summer 2011.Three large wildfires burned approximately 94,000 acres (38,040 hectares) and destroyed over 1,600 homes during September. ![]() Record breaking drought, combined with strong winds, created ideal wildfire conditions across eastern Texas the first half of the month.Nine other states from the Plains to the Northwest also had below-normal precipitation totals during the month.This total is shy of the record of 8.04 inches (204.22 mm) from 1999 when Hurricane Floyd impacted the region. A string of Northeast climate region had its second wettest September on record, with 6.70 inches (170.18 mm).Rainfall totals over 10 inches (254 mm) were widespread along the track of the storm. Lee made landfall along the Louisiana coast on September 4 th, and moved along a frontal boundary into the Ohio Valley and eventually into the Northeast. Precipitation averaged across the Nation during September was near normal, with most of the rainfall during the month coming from Tropical Storm Lee.Eight states in the Northeast had Vermont.A persistent upper-level low pressure system was associated with 14 states having Mississippi tied its ninth coolest September on record.Washington - having one of their ten warmest Septembers on record.This monthly analysis is based on records dating back to 1895. This was 0.10 inch (1.15 mm) below the long-term average, with large variability between regions. Precipitation, averaged across the nation, was 2.43 inches (61.7 2 mm). ![]() temperature in September was 66.9 degrees F (19.4 degrees C), which is 1.5 degrees F (0.8 degrees C) above the long-term (1901-2000) average. Dry conditions prevailed across the Plains and into the Northwest, with the national precipitation average near normal. The remnants of Tropical Storm Lee brought significant rainfall from the Gulf Coast into the Northeast, causing above-normal precipitation for most of the eastern United States, and alleviating drought across parts of the Gulf Coast.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |