Northeast Region:
(Information provided by the Northeast
Regional Climate Center)
- Calm weather, with temperatures near 60°F (16°C),
encouraged New Hampshire voters to turn out in record numbers at
the nation's first primary on January 8th. While the first week of
2008 averaged slightly below normal, the warm-up during the 2nd
week had Northeast residents wondering if spring had arrived early.
A persistent southerly flow kept temperatures in the region well
above normal for about a week, breaking records in many locations
on the 7th, 8th and 9th. A slight cool down later in the month was
not enough to offset the warmth, and the Northeast ended up with an
average temperature that was 4.1°F (2.3°C) above normal.
Individual state departures ranged from 1.0°F (0.6°C)
above normal in West Virginia to 5.7°F (3.2°C) warmer
than normal in Vermont.
- Precipitation totals were 75% of normal in the Northeast.
Maryland, Delaware, the eastern third of Pennsylvania, northwest
New Jersey and parts of the Hudson Valley of New York saw about
half of their normal January precipitation. It was the 10th driest
January since 1895 in Delaware and the 12th driest in Maryland.
West Virginia was the wettest state, with 103% of the normal
January precipitation. The southernmost part of Maryland's Eastern
Shore was still experiencing severe drought conditions while
Delaware, southern Maryland and the southern tip of West Virginia
continued to be under moderate drought conditions at the end of
January.
- Below normal precipitation coupled with above normal
temperatures led to a lack of significant snow events. In fact,
Central Park had no measurable snow for the month of January. This
was only the second time since 1898 that no snow was recorded at
this location. The last time was 1933.
For more information, please go to the Northeast
Regional Climate Center Home Page.
Midwest Region:
(Information provided by the Midwest
Regional Climate Center)
- January was colder than normal in the northwestern and
southeastern portions of the region, while temperatures in the
central sections of the Midwest were near to slightly above normal.
Temperatures ranged from 2-4°F (1.1-2.2°C) below normal
from northwestern Missouri to southwestern Minnesota. In the
southeastern Midwest, temperatures ranged from near normal along
the Ohio River to 2°F (1.1°C) below normal in southern
Kentucky. Temperatures in a band from southwestern Missouri north
and eastward to Ohio ranged from 1-2°F (0.6-1.1°C) above
normal. The largest positive departures occurred from northern
Wisconsin eastward to southern Lower Michigan and extreme
northeastern Ohio, where temperatures were 4-6°F
(2.2-3.3°C) above normal.
- January was a wet month for areas around the Great Lakes.
Precipitation was heaviest in central to northern Illinois and
through northern Indiana, most of which occurred during the first
10 days of the month. Dry weather persisted across Minnesota as
only a fraction of the normal precipitation fell. Missouri,
Kentucky and Ohio received near normal precipitation. Snowfall
across the region varied. Snowfall was well above normal across
Iowa, northern Illinois, Wisconsin and Michigan. The largest
accumulation of snow occurred in the Upper Peninsula of Michigan
where more than 60 inches (1.5 m) fell during January. Much of that
resulted from lake effect snowfall as low pressure exited the
region to the east. Little to no snow fell across much of Missouri,
southern Illinois, northwest Minnesota and Kentucky.
- The first major storm system to affect the area hit on January
8 as a cold front stalled out across Iowa and northern Illinois.
Waves of low pressure rode up the eastern flank of a trough carved
out in the central U.S., slowly advancing the front. The storms
that raced ahead and along the front produced over 75 reports of
tornadoes, 121 strong wind reports and over 136 reports of hail.
This unusual event was only the second time on record that a
tornado struck Wisconsin in January, the first in 1967. Heavy rains
accompanied these storms and caused numerous flooding-related
issues along rivers. Flooding in Illinois was aided by melting
snows further north. Things quieted down during the middle of the
month until the weekend of the 19th and 20th, when another cold
blast of air brought wind chills down to dangerous levels across
the northern Midwest. The month ended with a bang as warm air
invaded the area ahead of a very strong arctic cold front that
swept through the Midwest on January 29. The front was accompanied
by severe thunderstorms, a sharp drop in temperature, and a
spectacular contrast in weather within a few hundred miles. It is
not too often that a tornado watch and blizzard/winter storm
warnings exist within a few counties of each other, but that in
fact was the case on January 29 in the central Midwest.
Temperatures fell as much as 30°F (17°C) within an hour
of the front passing at most locations. The combination of rain,
sleet, freezing rain, snow and blowing snow in the cold air behind
the front made travel extremely hazardous. Winds sustained from 40
to 45 mph (64-72 kph) and gusts of more than 50 mph (80 kph)
produced near white-out conditions from eastern Iowa southeast
through central Illinois.
For details on the weather and climate events of the Midwest during
January, see the weekly summaries in the
MRCC Midwest Climate Watch page.
Southeast Region:
(Information provided by the Southeast Regional
Climate Center)
- Snow fell on all the states in the southeast in January,
including Florida. Daytona Beach had a record breaking snowfall on
Jan 3rd, when a trace fell at the International Airport there. The
Melbourne FL National Weather Service Office also noted that this
constituted a record accumulation for the date. Although there were
similar flurries in other areas of the state, no stations in
Florida recorded measurable amounts during the month. Puerto Rico
was completely snow free, but most of the mainland north of Florida
had accumulations ranging from a quarter of an inch (6 mm) in
central South Carolina to four inches (102 mm) in western and
northern Virginia. Even coastal Virginia received more than an inch
(25 mm).
- Despite that precipitation, much of the region remained
entrenched in drought. South and central Georgia had a little
relief early in the month, but north and central Alabama, northwest
Georgia and much of North Carolina remained in the Exceptional
Drought category. This has persisted for several months, and
streamflows throughout central Georgia are considerably below
normal, while rivers in the Carolinas and the Gulf coast of Florida
are at low levels seen less than 10% of the time.
For more information, please go to the Southeast Regional
Climate Center Home Page.
High Plains Region:
(Information provided by the High Plains
Regional Climate Center)
- Cold temperatures dominated most of January for Colorado and
Wyoming, and beneficial snows fell in the mountains of central and
western Colorado and Wyoming. Record cold temperatures in portions
of southwest Colorado on January 17 are currently under
investigation, but even without taking these into consideration,
the average temperature for January was 8-10°F (4-6°C)
below the 1971—2000 average in southwest Colorado. In
Nebraska and the Dakotas, a period of unusually warm weather in the
last week of January moderated the otherwise cold average
temperature for January, with highs reaching into the 50s (°F;
10-16°C) for several locations before a dramatic drop of close
to 60°F (33°C) with the passing of a cold front on
January 28. Most of Kansas saw near-normal temperatures on average,
but experienced large temperature swings similar to Nebraska and
the Dakotas. Cold temperatures allowed snow cover from December,
along with some snowfall associated with the frontal passage in
late January to remain in central and northeastern Nebraska for
almost all of January, with the exception of the urban areas of
Lincoln and Omaha, where warm temperatures at the end of January
made a rapid dent in the snow cover.
- January 2008 was dry for portions of central and western
Nebraska, eastern Colorado,and the Dakotas. The mountain regions of
west-central Colorado received 150-200% of normal precipitation,
while the high plains in the east received next to nothing. Most
locations in Colorado had their biggest snowfall days from January
7th—9th, with the Colorado Drainage Basin as the big winner,
where most locations have 150%-200% of normal snowpack. Crested
Butte, in the Colorado Drainage Basin, reported 73.7 inches (187
cm) of snowfall in January 2008. Areas of western Wyoming also
received much-needed precipitation, where 150-200% of normal fell
during the month. Moose, WY (near Yellowstone) saw an impressive
5.93 inches (151 mm) of liquid precipitation, helping to fill a
rainfall deficit that begain in 2007.
- Continued degredation in the drought conditions occured in
portions of western North Dakota as January remained dry. Some
categorical improvement is expected in western portions of the
Dakotas in April 2008, according to the U.S. Seasonal Drought
Outlook released on January 17. An even higher likelihood of
categorical improvement is expected in western Wyoming. Persisting
drought conditions are expected in north-central North Dakota, with
possible intensification in portions of southwest Kansas and
southeast Colorado.
For more information, please go to the High Plains
Regional Climate Center Home Page.
Southern Region:
(Information provided by the Southern
Regional Climate Center)
- In the Southern Region, temperatures were generally near
average for the month of January, with most stations reporting
within 4°F (2.2°C) of normal. The only exception to this
was in central and north central Oklahoma and northern Texas, where
temperatures averaged 4-6°F (2.2-3.3°C) above the monthly
normal.
- Precipitation in the Southern Region was generally below
normal, with the exception of the coastal regions, where above
normal monthly totals were observed. In addition, there were some
small pockets of above normal precipitation in southwestern Texas
and northwestern Tennessee. The driest areas of the southern region
were observed in the panhandles of Texas and Oklahoma, southern
Oklahoma, and northern Texas. In these locations, the majority of
stations reported less than half an inch for the month, with many
others recording no precipitation at all. Similar, but less severe
values were observed in southwestern Texas, and in northern
Arkansas, with most stations reporting only 5-25% of normal
precipitation. In fact, most of Arkansas and northern Louisiana
received half of the monthly average or less, except in extreme
eastern Arkansas. Similarly low values were also found in central
Mississippi. The highest positive precipitation anomalies for the
month were observed in the central Texas coast, where precipitation
totals for the month ranged from approximately 150-180% of normal.
Palacios Municipal Airport received 5.63 inches (143 mm) for the
month, or 177% of the monthly average.
- On January 7, tornadoes were reported near Decatur, Hiwasse,
Bentonville, and Rogers, Arkansas. No details regarding damage were
available. There were several reports of damaging wind and hail in
Arkansas, Mississippi and western Tennessee on January 8-9. On the
8th, a tornado in the vicinity of Appleton, AR resulted in at least
one fatality. Structural damage was reported and the storm downed
trees and power lines. Similar damage from tornadic activity was
also reported in the area of Jerusalem, AR. Near Osceola, AR,
tornadic activity caused many homes to be damaged, and on highway
61, semi trucks were overturned. There were also reports of golf
ball-sized hail near Osceola. Near Edith TN, a tornado damaged
several homes and trailers. Similar tornado-induced damage was also
reported in Dyersburg, TN and near Halls, TN. In the case of the
latter, tree and structural debris was spread over Highway 51. On
the 10th of January, there were several reports of tornadoes in
Mississippi with substantial damage in Magnolia and three injuries
near Weir. Approximately a dozen hail reports were recorded on the
10th in central and southern Mississippi. On January 29, there were
several wind damage reports in central and north-central Tennessee.
Damage was mostly restricted to trees and power lines, however,
some homes were damaged as well. Winds were estimated to be 60 mph
(97 kph) near Dickson, TN.
For more information, please go to the Southern
Regional Climate Center Home Page.
Western Region:
(Information provided by the Western
Regional Climate Center)
- Except for eastern Montana, temperatures throughout the West
were mostly below normal with pockets of Nevada, Utah and Colorado
nearly 10°F (6°C) below average. As in December 2007,
many western valleys were trapped in cold air inversions, leading
to extremely frigid conditions. The monthly average minimum
temperature at Gunnison, CO was -18.0°F (-27.7°C), by far
colder than any other location in the U.S. except stations in
northern Alaska. The average minimum temperature in Alamosa, CO,
was -12.2°F (-24.6°C), the coldest there since 1992 and
5th lowest overall back to 1948. The average monthly temperature of
6.5°F (-14.2°C) in Vernal, UT was the coldest for January
since 1984.
- Precipitation was near to slightly below normal in the Pacific
Northwest and intermountain regions, and further below normal in
parts of eastern Montana, Wyoming and Colorado. New Mexico was
quite dry except in its northwest. California, Arizona, southern
Utah, and western Colorado were wetter than usual, not usually a
characteristic of La Niña winters. The San Juan Mountains of
southwest Colorado have built up a much above average snowpack.
Some locations in California measured more precipitation in January
2008 than the entire rainy season of 2006—07. Santa Barbara,
CA measured 10.44 inches (265.2 mm) for the month, exceeding the
previous 19 month total of 9.83 inches (249.7 mm). Heavy snow in
the mountains of the west pushed the snow pack to near or above
normal in nearly all locations by February 1st. In the Sierra
Nevada the snow water equivalent increased from 53% of normal at
the beginning of the month to about 115% by the end. In contrast to
Santa Barbara, Denver received just 0.08 inches (2.0 mm) for the
month, their 4th driest January on record.
- One of the more powerful storms in the past few years slammed
into California adding much needed snow in the mountains and
unwanted wind along the coast and interior valleys. Minor flooding
and mudslides occurred in much of Southern California. Wind damage
was severe as many valley locations reported winds of up to 80 mph
(129 kph), with gusts to as high as 165 mph (265.5 kph) on the
Sierra ridge crests. Snow pack in the Lake Tahoe area increased
from 51% of average on the morning of January 3rd to about 104%
three days later. Rainfall totals ranged from 8 inches (203 mm)
along the north coast of California to 12 inches (305 mm) in the
southern California mountains. Up to 10 ft (305 cm) of snow fell in
the central Sierra. Bishop, CA in the Owens Valley measured an
astonishing 4.29 inches (109.0 mm) of rain on January 4—5, an
amount that is 85% of their annual average. Elsewhere, a rare
tornado damaged 64 homes in Hazel Dell, Washington during the early
afternoon hours of the 10th. Some 200 12-24 inch (30-60 cm) trees
were downed and many power poles toppled. This was only the 3rd
January tornado reported in the state of Washington since
1950.
For more information, please go to the Western
Regional Climate Center Home Page.
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