U.S. Drought Monitor Report for the Week Ending Sept. 10 (Text)

Following is the text of the weekly U.S. Drought Monitor as released by the National Drought Mitigation Center in Lincoln, Nebraska:

Weather Summary: Several fronts moved across the central and
eastern contiguous U.S. during the past week, bringing generally
under an inch of rain to the Great Lakes and the Northeast.
Heavy rain (2 inches or greater) fell across much of the Gulf
Coast region, western Illinois, parts of the Northern Great
Plains, and the higher terrain of the Washington and Oregon
Cascades. A very generous monsoonal flow into the Southwest
brought light to moderate rain (less than 2 inches) to much of
this region, with many reporting stations in Arizona receiving
between 2-4 inches of rain during the past 7-days.

The Northeast: Continuing dry conditions prompted the
introduction of abnormal dryness (D0) across central Maryland,
southwestern Connecticut, and Long Island, N.Y., this week.
According to AHPS, these areas have significant precipitation
deficits at 180-, 90-, 60-, 30-, and 14 days. Streams and rivers
are also running low, especially in central Maryland.

The Midwest: Most of the Midwest remained dry this past week,
though heavy rain (2-4 inches) fell over a relatively localized
portion of west-central Illinois.  Positive temperature
departures of 4-8 degrees F were common throughout the region,
with +10 degree F anomalies over portions of Iowa and southern
Minnesota. As a result, widespread 1-category downgrades were
made to the drought depiction across northern and southwestern
Missouri, southern, central and eastern Iowa, parts of northern
Illinois, northeastern and central Indiana, and central and
southern portions of both Minnesota and Wisconsin. Since July
1st, La Crosse, WI, has received only 2.40 inches of rain, the
driest ever July 1st-September 10th period. The previous record
was 2.52 inches, set back in 1948.

The Lower Mississippi Valley:  Lack of rain during the past 7-
days, temperatures 2-6 degrees above normal, and stream flow
values in the lowest quartile of their historical distributions
prompted 1-category degradations to the depiction across
northern and western Louisiana, central and southern Arkansas,
and northern and central Mississippi.

Central and Northern Great Plains: Scattered areas of light rain
(0.5-inch or less) were observed over Nebraska this past week,
with little if any rain reported over Kansas. One- category
downgrades were warranted across southeastern Nebraska, with a
1-category improvement made over extreme northeastern parts of
the state. These alterations were largely based on 30-day and
60-day SPI values.  In Kansas, the area of abnormal dryness (D0)
in the northeast was expanded, and D0 conditions were added to
southeast parts of the state.  No changes were made to the
Northern Plains depiction this week,  though widespread moderate
to heavy rain (0.5-4.5 inches) occurred over North Dakota and
adjacent portions of South Dakota.

Southern Great Plains: Continuing dryness over north-central and
northeastern Texas warranted a number of 1-category
degradations.  In contrast, recent heavy but spotty rains
resulted in small areas of improvement across deep southern
Texas. No modifications were made to the depiction in west
Texas, as dry weather has followed a reasonably wet summer in
the region. In Oklahoma, 1-category downgrades were made across
a significant portion of the state, with remaining drought-free
areas in central and eastern Oklahoma deteriorating to abnormal
dryness (D0).  In Jackson County (southwest part of state), Lake
Altus-Lugert dropped to a historic low level of 12.6 percent of
capacity.

The Southwest: The seasonal monsoon was very active during the
past 7-days.  Widespread 2-4 inch rains were reported across the
region, especially in Arizona. One-category upgrades were
rendered to the Arizona depiction where approximately 2 inches
or more of rain fell, especially in the more centrally located
counties of Coconino, Yavapai, Maricopa and Gila. A more
detailed and thorough reassessment of this region will be
performed next week. By then, we should have a better handle on
the extent of the impacts of this monsoonal rainfall.
Beneficial moisture also worked its way into western and north-
central Colorado, and southeastern Wyoming, allowing for 1-
category improvements.

The Northwest: Heavy precipitation (2 inches or greater) fell
across western portions of both Washington and Oregon during the
past week, in advance of an upper-level trough. Although
beneficial for areas currently experiencing dryness (Oregon),
the short-term gains have not offset long-term precipitation
deficits, so no changes were made in this area.

Hawaii and Alaska: A 1-categorydowngrade was warranted
forwestern and southeastern sides ofthe Big Island of Hawaii,
due to continuing dryness.  On the west side, it was reported
that livestock and ornamental producers were having to haul
water to sustain operations, which is very expensive and
significantly reduces profits. On the southeast side of the
Island, there were reports of crop stress.  On the west side of
Lanai, D1 conditions improved to D0. No changes were made in
Alaska this week. However, the South Coast has seen heavy
precipitation again this week,  so it would not be unreasonable
to see the removal of D0 in this region next week.

Looking Ahead: During September 12-16, heavy rainfall (2-4
inches) is anticipated over New Mexico, Colorado, western
Kansas, and far southern Texas.  Generally light rain (0.5-inch
or less) is expected across the Midwest, with high temperatures
near- to slightly below normal.

For the ensuing 5 days (September 17-21, 2013), odds for above
normal precipitation are greatest across the central third of
the contiguous U.S., the Gulf Coast, Pacific Northwest, and
northern Alaska, with maximum probabilities near 60-percent over
southern Texas . Odds for below normal precipitation are
greatest over the Northeast, mid-Atlantic region, upper Ohio
Valley, and southern third of Alaska.

To contact the reporter on this story: Stephen Rose in Washington at srose31@bloomberg.net

To contact the editor responsible for this story: Marco Babic at mbabic@bloomberg.net

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