National Storm Summary August 2005
- From: james.munley@xxxxxxxxxxx
- Date: 16 Sep 2005 11:04:40 -0700
NATIONAL STORM SUMMARY
AUGUST 2005
1st-6th...Daytime heating and abundant moisture continued to produce
scattered showers and thunderstorms over the Deep South, eastern Gulf
Coast, Florida, Carolinas, and southern portions of the Tennessee
Valley on Monday. Only a few isolated incidents of severe storms had
been reported during the afternoon and early evening hours where the
main threat was damaging winds and large hail. To the north, an
upper-level disturbance produced scattered showers and thunderstorms
over portions of the Northeast. Severe storms affected central New
York, southern Vermont, and western Massachusetts where large hail to
the size of quarters and damaging winds up to 50 mph affected the
states. A few passing clouds and isolated showers were found in North
Dakota. Further south, scattered showers and thunderstorms affected the
Gulf Coast of southeastern Texas and Louisiana. Over the West, a pair
of upper-level disturbances brought mostly cloudy with scattered
showers and thunderstorms to the Central to Northern Rockies, Great
Basin, Four Corners, Desert Southwest, and far southern California.
Some isolated severe storms were found over portions of the
aforementioned regions as the main threat was damaging winds.
Thunderstorms hit the Gulf Coast and other parts of the Southeast on
Wednesday. In the Midwest, widely scattered showers and thunderstorms
were reported in the Dakotas, Minnesota, western Nebraska, Iowa and
northern Illinois.
7th-13th...An upper-level disturbance brought another round of showers
and thunderstorms to the Southeast during the afternoon and evening
hours. A few of these storms were strong with frequent lightning, gusty
winds, small hail, and heavy downpours. A water spout was spotted off
the coast of Folly Beach, South Carolina. Elsewhere, a cold front
pushing through the Great Lakes region, the Ohio Valley, and into the
Northeast, produced a line of showers and thunderstorms across the
region. The main concern with this activity was strong and damaging
winds. In fact, there were many reports of downed trees and power lines
throughout Indiana and New York. In the central part of the country, a
large cluster of showers and thunderstorms affected parts of southern
and eastern Texas, producing frequent lightning, gusty winds, and heavy
downpours. Flash flooding was the main issue as rainfall amounts of
over an inch were common. Rain showers and isolated strong
thunderstorms also developed across the northern and central Plains,
and the Mid Mississippi Valley. These storms contained frequent
lightning, gusty winds, small hail, and brief heavy downpours. In fact,
quarter size hail was reported in Rising City, Nebraska, and there were
various other reports of nickel and penny size hail throughout the
area. Winds of 70 mph also caused two anchored sheds to be moved off
the foundations in Springview, Nebraska. In the West, monsoonal
moisture once again brought afternoon and evening showers and
thunderstorms to the high Plains, the Rocky Mountain region, eastern
portions of the Great Basin, and the Desert Southwest. Most of this
activity remained under severe limits; however, one storm in Dubois,
Idaho produced penny size hail that covered the ground for a short
amount of time. Half dollar size hail also pounded parts of Yuma,
Colorado, and quarter size hail was reported in Melrose, Montana.
14th-20th...Thousands of people across the Northeast had no electricity
for alarm clocks and air conditioners Monday following waves of violent
thunderstorms. Wind gusting to 80 mph knocked trees onto power lines,
lightning started
fires and torrential rain flooded streets in parts of eastern
Pennsylvania, northern New Jersey, southeastern New York, Connecticut
and eastern Massachusetts on Sunday. Boston's South Shore was hit
particularly hard, with severe flooding in Quincy, Braintree, Weymouth
and Brockton. More than 50,000 homes and businesses in Massachusetts
and more than 80,000 in New Jersey lost power, though most had service
restored by Monday morning. Thousands more were blacked out in the New
York City suburbs.
A rash of tornadoes that swept through southern Wisconsin killed one
person and injured at least 30 others, with more than 200 homes
destroyed or damaged, trees uprooted and power lines down, authorities
said on Friday.
21st-27th...Afternoon and evening showers and thunderstorms developed
across the Tennessee Valley and the Southeast for another day. A few of
these storms did become severe with frequent lightning, strong winds,
large hail, and heavy downpours. Quarter size hail was reported in
Holly Pond, Alabama and Hanahan, South Carolina. Lightning also struck
a person in Barnwell, South Carolina; however, it is unknown if there
were injuries as a result of the strike. Heavy rainfall of over an inch
did affect a few locations. For example, Savannah, Georgia received
1-point-72 inches of rain, and Charleston, South Carolina received 1.57
inches. A few showers popped up across parts of the Northeast, but
rainfall amounts remained under a quarter of an inch. In the Center of
the country, numerous rain showers and thunderstorms affected the
central and southern Plains, and the middle and lower Mississippi
Valley. The main concern with this activity was frequent lightning,
gusty winds, large hail, and very heavy downpours. One storm produced
golf ball size hail and winds of 70 mph in Onalaska, Texas. Heavy
rainfall of over an inch was also a problem in many locations. In the
West, a moist and unstable airmass allowed for afternoon and evening
showers and thunderstorms across the High Plains, the Rocky Mountain
region, the Great Basin, and the Desert Southwest. Frequent lighting,
gusty winds, small hail, and brief heavy downpours were associated with
these storms. In fact, golf ball size hail pounded Arapahoe, Colorado,
and penny size hail accumulated to two inches deep in Falcon, Colorado.
A wind gust of 62 mph was also recorded near Hagerman, Idaho. Rainfall
amounts remained light.
In the East, Hurricane Katrina brought heavy rain showers and damaging
winds to Southern Florida and the Florida Keys on Friday. Major
flooding has been a main concern for southern Florida and the Florida
Keys. Key West, Florida reported 9.24 inches of rain and Marathon,
Florida reported 6.51 inches of rain. A few rain bands made their way
into northern Florida, however, these showers were widespread.
Sustained winds with this storm have reached up to 74 mph in Key West,
Florida. A tornado was reported with this storm in Marathon, Florida
during the early morning hours. Further north, a frontal boundary
pushed through Upper portions of the Mid-Atlantic states, Ohio Valley,
and Great Lakes bringing scattered rain showers and thunderstorms. This
frontal boundary pushed further south during the afternoon and evening
also bringing scattered rain showers and thunderstorms to the Tennessee
Valley. Rainfall has been heavy throughout the day in many locations.
Evansville, Indiana reported 1.47 inches of rainfall this afternoon.
While, Henderson, Kentucky reported 2.93 inches of rainfall. A few
storms in Tennessee, Kentucky and Indiana became severe in nature with
lightning, strong winds, hail, and heavy downpours being the main
concerns. A hailstone of 0.75 inches in diameter was reported in
Evansville, Indiana. and a hailstone of 0.88 inches in diameter was
reported near Sharon, Tennessee. In other areas, isolated showers and
thunderstorms lingered just off of the coast of South Carolina and
Georgia along a stalled frontal boundary. However, no significant
rainfall totals have been recorded. In the mid-section of the United
States, a broad band of scattered rain showers and thunderstorms fell
in the Central Plains, eastern portions of the Northern Plains, the
Upper Mississippi Valley, and Mid-Mississippi Valley due to a cold
front moving through the area and a series of shortwaves moving through
the Central Plains. Some of the storms in the Upper Mississippi Valley,
Mid-Mississippi Valley, and eastern portions of the Central Plains
became severe in nature with lightning, strong winds, hail, and heavy
downpours being the main concerns. A hailstone of 0.75 inches in
diameter was reported in Bloomsdale, Missouri and a hailstone of one
inch in diameter was reported in Polar Bluff, Missouri. Also, a
hailstone of 0.88 inches in diameter was reported near Cheyenne,
Oklahoma and a hailstone of one inch in diameter was reported near
Angora, Oklahoma. A wind gust of 60 mph was reported in Harrisburg,
Illinois. During the afternoon and early evening, scattered rain
showers and thunderstorms formed and fell in portions of the Lower
Mississippi Valley. A few isolated severe thunderstorms developed with
lightning, strong winds, hail, and brief heavy downpours being the main
concerns. A hailstone of one inch in diameter was reported near
Stinnett, Texas. In the west, scattered rain showers and thunderstorms
formed during the afternoon and evening in the Central and Southern
Rockies. None of these showers and storms became severe in nature and
rainfall amounts were under a quarter of an inch.
28th-31st...The remnants of Hurricane Katrina moved through the eastern
United States on Tuesday, dropping more than 5 inches of rain in some
areas. A total of 5.5 inches of rain had fallen in New Bedford, Mass.,
while more than 2 inches were reported across portions of Rhode Island.
Parts of Kentucky were hit with more than 3 inches of rain, and flash
flood and rising river warnings were issued in some areas. Katrina,
which had weakened to a tropical depression Tuesday, also brought
scattered showers and thunderstorms to parts of the Midwest.
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