Thursday, March 21, 2013

Spring Climate Outlook

March 21, 2013:  Spring Outlook for Temperatures, Precipitation and Flooding

NOAA issued the three-month U.S. Spring (April 1-June 30, 2013) Outlook today, stating that odds favor above-average temperatures across much of the continental United States, including drought-stricken areas of Texas, the Southwest and the Great Plains. Spring promises little drought relief for most of these areas, as well as Florida, with below- average spring precipitation favored there. Meanwhile, river flooding is likely to be worse than last year across the country, with the most significant flood potential in North Dakota.
"This outlook reminds us of the climate diversity and weather extremes we experience in North America, where one state prepares for flooding while neighboring states are parched, with no drought relief in sight," said Laura Furgione, deputy director of NOAA's National Weather Service. "We produce this outlook to help communities prepare for what's likely to come in the next few months and minimize weather's impacts on lives and livelihoods. A Weather-Ready Nation hopes for the best, but prepares for the worst." The U.S. Spring Outlook identifies the likelihood of spring flood risk and expectations for temperature, precipitation and drought. The outlook is based on a number of factors, including current conditions of snowpack, drought, soil moisture, streamflow, precipitation, Pacific Ocean temperatures and consensus among climate forecast models.

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map





Spring Equinox and the Four Seasons


Spring began  at 6:02 A.M. (CDT) on March 20, 2013 in the Northern Hemisphere. The technical name is the "Vernal Equinox" and in the fall it is called the "Autumnal Equinox".  The seasons are reversed in the Southern Hemisphere so this was the start of Fall or autumn for them.

The word equinox is derived from the Latin words meaning “equal night.” Days and nights are approximately equal everywhere and the Sun rises and sets due east and west (making driving on East-West roads difficult at sunrise and sunset).  Due to the way we measure sunrise and sunset, i.e. at what point the sun's disk has risen and set, there are a few extra minutes at the Equinoxes so it is not exactly 12 hours of daylight.

As we head toward the first day of Summer (the Summer Solstice) the sun in Lincoln rises further and further north and sets further and further north on the horizon.  By June the sun is rising in the northeast east and setting in the northwest sky in Lincoln. For those lucky enough to travel to the Arctic during the summer, the sun in June is visible for all 24 hours there and will be directly north around midnight (but very low in the sky).  This area is often referred to as the "Land of the Midnight Sun"

Lincoln will have around 15 hours of daylight by June which is in contrast to our minimum of around only 9 hours of daylight in December (see exact totals below here).. 

Lincoln, NE:  Start of each Season with Sunrise and Sunsets for 2013:
Spring Equinox: 6:02 am CDST, March 20:  Sunrise 7:30 am CDST; Sunset 7:39pm CDST
Summer Solstice: 12:04 am, CDST, June 21:  Sunrise 5:55am CDST; Sunset 9:02pm CDST
Autumnal Equinox:  3:44 pm CDST, September 22:  Sunrise 7:14 am CDST; Sunset 7:23pm CDST
Winter Solstice: 11:11am CST, December 21:  Sunrise 7:48 am CST; Sunset 5:02pm CST

Lincoln's longest daylight length = June 21 =  15 hours and 7 minutes
Lincoln's shortest daylight length = December 21 =  9 hours and 14 minutes

The actual starting times and dates of the start of each of the seasons changes from year to year.
Here is a link to the exact dates and times of the start of the 4 seasons, present out through  future years (NOTE the times are in GMT which is 5 hours later than our time zone during CDST and 6 hours later than us during CST):
Dates and times for the start to the seasons. 

Here is a link to an excellent Internet site to create a table for the sunrise and sunset times for any location for a complete year: Sunrise/Sunset Tables for any Location

 The following diagram (although not to scale since the sun is actually much larger than the earth) shows the concept of the Northern Hemisphere being pointed toward the sun during our Summer and away from the sun during our winter.  This is the cause of the season and results in the variation in daylight during the year and the intensity of solar radiation received at the earth's surface.


Equinox solstice cycle


Monday, March 18, 2013

February 2013 Global Temperature Anomalies



According to NOAA scientists, the globally-averaged temperature for February 2013 tied with 2003 as the ninth warmest February since record keeping began in 1880. It also marked the 28th consecutive February and 336th consecutive month with a global temperature above the 20th century average. The last below-average February temperature and the last below-average temperature for any month was February 1985.

Many areas of the world experienced higher-than-average monthly temperatures, including eastern Europe, western Russia, the Middle East, much of Canada, and southern Greenland. Meanwhile, northern and western Alaska, far northwestern Canada, a large swath of the contiguous United States, western Europe, northwestern Africa, Siberia, Mongolia, and most of the eastern Pacific Ocean were notably below average.

Check out our archive of global temperature anomaly maps for previous years at: THIS LINK  
And, check out the Lincoln Weather and Climate Home page for local, regional, national and global climate information.at:  THIS LINK 




Wednesday, March 13, 2013

Which Month is Normally the Snowiest for Lincoln, NE?

Lincoln's snowfall season is September - May.
Monthly snowfall data extend back to September 1899

Data: 114 snow seasons (updated through March 2013, April 2013 data will be added next month)
Snow Season September 1899 - May 1900 through Snow Season September 2012- May 2013
January was the snowiest 30 times out of 114 snowfall seasons.
March was the snowiest 26 times out of 114 snowfall seasons.
February was the snowiest 26 times out of 114 snowfall seasons.
December was the snowiest 21 times out of 114 snowfall seasons.
November was the snowiest 9 times out of 114 snowfall seasons.
April was the snowiest 2 times out of 113 snowfall seasons.

 snow
A February 2012 snowfall in Lincoln, NE

LINCOLN, NEBRASKA
Monthly Snowfall Totals in Inches (July 1899 to June 2013)

Snowiest month in each snow season is in RED.
A "T" = a trace of snow, i.e. snowfall was observed but not enough to be measured.

YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
2012-13
0
0
0
0
T
5.1
6.2
5.5
5.7
0
22.5
2012-13
2011-12
0
0
0
0
T
4.9
1.6
12.3
0
0
0
0
18.8
2011-12
2010-11
0
0
0
0
T
1.7
15.6
9.4
2.6
T
0
0
29.3
2010-11
2009-10
0
0
0
1.2
0.0
24.3
7.1
7.4
1.6
0
0
0
41.6
2009-10
2008-09
0
0
0
0
T
5.5
5.6
8.1
T
T
0
0
19.2
2008-09
2007-08
0
0
0
0
0.4
8.9
4.9
5.1
1.1
T
0
0
20.4
2007-08
2006-07
0
0
0
T
0
7.5
10.0
6.4
7.1
0
0
0
31.0
2006-07
2005-06
0
0
0
0
2.9
6.0
T
0.7
9.9
0
0
0
19.5
2005-06
2004-05
0
0
0
0
1.2
0
10.5
4.6
T
T
0
0
16.3
2004-05
2003-04
0
0
0
0
0.3
6.8
15.3
13.5
T
0
0
0
35.9
2003-04
2002-03
0
0
0
2.5
1.0
0.1
8.8
13.0
1.7
4.6
0
0
31.7
2002-03
2001-02
0
0
0
0
T
1.9
11.1
1.7
14.8
T
0
0
29.5
2001-02
2000-01
0
0
0
0
2.6
15.4
5.5
14.2
0.2
0
0
0
37.9
2000-01
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1999-00
0
0
0
0
0
3.8
0.5
7.6
T
T
0
0
11.9
1999-00
1998-99
0
0
0
0
T
3.6
4.6
9.4
6.8
T
0
0
24.4
1998-99
1997-98
0
0
0
13.2
0.2
6.8
5.5
1.0
17.9
T
0
0
44.6
1997-98
1996-97
0
0
0
1.0
0.6
2.2
5.8
8.3
T
11.1
0
0
29.0
1996-97
1995-96
0
0
0
0
6.8
3.7
11.0
T
7.4
1.8
0
0
30.7
1995-96
1994-95
0
0
0
T
0.2
6.3
7.5
2.1
5.6
0.1
0
0
21.8
1994-95
1993-94
0
0
0
T
2.8
4.2
2.2
11.4
0.3
0.4
T
0
21.3
1993-94
1992-93
0
0
0
T
3.8
2.9
16.8
6.4
2.2
T
0
0
32.1
1992-93
1991-92
0
0
0
2.3
8.8
T
0.9
3
0.9
7.9
T
0
23.8
1991-92
1990-91
0
0
0
0
0
8.1
14.1
T
3.6
T
0
0
25.8
1990-91
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1989-90
0
0
0
T
0.2
6.5
3.2
2.8
4.7
1.3
0
0
18.7
1989-90
1988-89
0
0
0
0
2.7
3.1
1.1
11.5
0.7
T
0
0
19.1
1988-89
1987-88
0
0
0
0.3
5.7
1.1
3.0
2.3
0.6
0
0
0
13.0
1987-88
1986-87
0
0
0
0
1.8
3.9
1.2
1.2
7.6
0
0
0
15.7
1986-87
1985-86
0
0
0.8
0
6.9
5.2
T
5.4
T
0.6
0
0
18.9
1985-86
1984-85
0
0
0
0
0.5
6.2
4.7
3.1
7.0
0
0
0
21.5
1984-85
1983-84
0
0
T
0
8.6
13.8
2.5
5.1
17.0
0.5
0
0
47.5
1983-84
1982-83
0
0
0
T
T
5.2
5.1
7.6
12.9
7.2
0
0
38.0
1982-83
1981-82
0
0
0
T
2.1
9.3
3.8
4.4
7.8
4.9
0
0
32.3
1981-82
1980-81
0
0
0
3.3
T
2.3
1.7
1.9
3.8
0
0
0
13.0
1980-81
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1979-80
0
0
0
0.4
0.1
2.4
8.1
5.6
6.5
0.2
0
0
23.3
1979-80
1978-79
0
0
0
0
7.3
3.0
11.5
4.4
3.7
4.5
0
0
34.4
1978-79
1977-78
0
0
0
0
3.3
3.7
4.5
13.8
5.7
T
0
0
31.0
1977-78
1976-77
0
0
0
0.4
0.4
0.6
8.7
T
8.3
3.4
0
0
21.8
1976-77
1975-76
0
0
0
0
6.3
1.3
3.9
4.3
5.3
0
0
0
21.1
1975-76
1974-75
0
0
0
0
1.9
8.3
14.6
10.9
4.4
2.0
0
0
42.1
1974-75
1973-74
0
0
0
0
T
19.8
11.0
0.9
1.6
0.3
0
0
33.6
1973-74
1972-73
0
0
0
T
8.6
6.5
6.7
5.1
0.1
2.2
0
0
29.2
1972-73
1971-72
0
0
0
0
10.0
2.3
3.6
3.9
0.9
0.9
0
0
21.6
1971-72
1970-71
0
0
0
6.6
0.6
0.4
15.1
17.6
8.3
0.4
0
0
49.0
1970-71
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1969-70
0
0
0
T
0.2
15.8
1.7
3.2
4.7
0.6
0
0
26.2
1969-70
1968-69
0
0
0
0
1.7
11.7
7.8
13.6
5.0
0
0
0
39.8
1968-69
1967-68
0
0
0
T
T
1.9
4.3
1.0
T
T
0
0
7.2
1967-68
1966-67
0
0
0
0
0.2
9.9
5.5
0.5
T
3.7
3
0
22.8
1966-67
1965-66
0
0
0
0
T
2.0
1.9
1.5
3.6
T
0
0
9.0
1965-66
1964-65
0
0
0
0
0.5
1.5
3.7
26.1
10.3
0
0
0
42.1
1964-65
1963-64
0
0
0
0
0
4.2
2.5
2.2
4.1
T
0
0
13.0
1963-64
1962-63
0
0
0
0
0.3
4.6
6.5
2.2
11.0
T
0
0
24.6
1962-63
1961-62
0
0
0
0
6.8
12.2
3.3
4.3
2.5
0.1
0
0
29.2
1961-62
1960-61
0
0
0
0
T
0.7
2.0
4.5
5.1
0.8
0
0
13.1
1960-61
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1959-60
0
0
0
0
0.6
5.1
11.1
19.2
17.8
0.5
0
0
54.3
1959-60
1958-59
0
0
0
0
1.0
0.3
12.2
5.3
12.1
T
0
0
30.9
1958-59
1957-58
0
0
0
T
12.6
5.6
7.4
3.2
10.0
T
0
0
38.8
1957-58
1956-57
0
0
0
0
5.1
2.5
5.1
2.5
13.6
5.4
0
0
34.2
1956-57
1955-56
0
0
0
0
2.6
3.3
11.3
3.6
1.5
0.2
0
0
22.5
1955-56
1954-55
0
0
0
T
T
0.8
13.9
5.4
3.5
0
0
0
23.6
1954-55
1953-54
0
0
0
0
5.0
0.3
1.8
1.5
1.2
0
0
0
9.8
1953-54
1952-53
0
0
0
0
6.0
9.7
6.1
2.8
5.1
T
0
0
29.7
1952-53
1951-52
0
0
0
0
1.0
9.4
4.4
5.2
12.5
2.1
0
0
34.6
1951-52
1950-51
0
0
0
0
2.2
2.7
8.3
2.0
3.9
0.8
0
0
19.9
1950-51
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1949-50
0
0
0
0
T
3.3
8.7
9.6
8.1
2.8
0
0
32.5
1949-50
1948-49
0
0
0
0
4.3
15.0
15.9
10.7
3.2
1.5
0
0
50.6
1948-49
1947-48
0
0
0
0
4.7
4.1
10.7
14.4
20.8
0
0
0
54.7
1947-48
1946-47
0
0
0
T
0.5
1.7
4.4
3.5
5.8
0.2
T
0
16.1
1946-47
1945-46
0
0
0
0
0.2
22.3
4.0
T
0.8
0
0
0
27.3
1945-46
1944-45
0
0
0
0
6.6
5.3
7.4
15.0
0.2
10.5
T
0
45.0
1944-45
1943-44
0
0
0
0
2.5
3.4
0.2
11.9
15.5
5.2
0.1
0
38.8
1943-44
1942-43
0
0
0
0
0.9
10.0
2.0
0.7
10.5
0
0
0
24.1
1942-43
1941-42
0
0
0
5.5
1.0
12.8
2.8
8.5
0.9
0
0
0
31.5
1941-42
1940-41
0
0
0
0
5.2
15.3
9.7
5.6
7.3
T
0
0
43.1
1940-41
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1939-40
0
0
0
T
T
8
14.6
10.4
6.1
1.8
0
0
40.9
1939-40
1938-39
0
0
0
0
0.5
1.4
7.9
16.4
5.8
T
0
0
32.0
1938-39
1937-38
0
0
0
0
1.6
1.1
6.9
11.5
T
0.4
T
0
21.5
1937-38
1936-37
0
0
0
T
T
2.6
10.0
1.9
2.6
T
0
0
17.1
1936-37
1935-36
0
0
0
0
0.4
1.8
19.3
9.4
T
2.2
0
0
33.1
1935-36
1934-35
0
0
0
0
0.2
4.9
0.7
5.9
6.9
T
0
0
18.6
1934-35
1933-34
0
0
0
0
T
0.5
2.1
5.6
6.1
0
0
0
14.3
1933-34
1932-33
0
0
0
0.1
0.1
6.8
0.2
3.6
8.8
T
0
0
19.6
1932-33
1931-32
0
0
0
0
4.2
6.6
14.5
4.0
6.7
0
0
0
36.0
1931-32
1930-31
0
0
0
T
1.0
1.4
1.9
0.4
8.5
T
0
0
13.2
1930-31
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1929-30
0
0
0
0
2.7
0.2
9.7
1.5
T
0
0
0
14.1
1929-30
1928-29
0
0
0
0
12.2
T
4.8
11.3
T
0
0
0
28.3
1928-29
1927-28
0
0
0
0
0.1
3.6
0.3
3.9
0.8
7.0
0
0
15.7
1927-28
1926-27
0
0
0
0
3.2
6.2
1.1
7.9
2.7
0.1
0
0
21.2
1926-27
1925-26
0
0
0
4.5
0.5
4.7
4.8
2.3
4.0
T
0
0
20.8
1925-26
1924-25
0
0
0
0
0.7
8.5
7.2
1.5
3.0
0
0
0
20.9
1924-25
1923-24
0
0
0
0.5
0
2.5
5.2
7.1
9.2
0
T
0
24.5
1923-24
1922-23
0
0
0
0
0
0.2
1.2
0.7
16.4
T
0
0
18.5
1922-23
1921-22
0
0
0
0
0.1
1.5
6.4
T
3.3
T
0
0
11.3
1921-22
1920-21
0
0
0
0
2.0
3.3
1.2
4.0
T
3.0
0
0
13.5
1920-21
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1919-20
0
0
0
0
8.9
9.1
1.8
1.5
0.8
9.0
0
0
31.1
1919-20
1918-19
0
0
0
T
2.4
2.9
0.5
9.0
0.9
0.6
0
0
16.3
1918-19
1917-18
0
0
0
0.2
0.5
3.5
7.4
10.8
0.3
1.2
0
0
23.9
1917-18
1916-17
0
0
0
3.1
2.3
4.9
0.6
0.4
2.7
0.9
0
0
14.9
1916-17
1915-16
0
0
0
0
T
7.3
6.2
6.2
1.2
2.4
0
0
23.3
1915-16
1914-15
0
0
0
0
0
7.2
23.0
13.5
15.7
0
0
0
59.4
1914-15
1913-14
0
0
0
0.5
0
1.1
0.6
11.2
8.8
T
0
0
22.2
1913-14
1912-13
0
0
0
T
T
0.1
4.5
10.1
3.6
0.4
0
0
18.7
1912-13
1911-12
0
0
0
T
0.5
9.3
1.1
14.3
21.3
0
0
0
46.5
1911-12
1910-11
0
0
0
T
0.3
8.1
2.9
1.0
0.6
1.5
0
0
14.4
1910-11
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 
1909-10
0
0
0
T
5.9
19.9
10.3
2.7
1.0
0.3
0
0
40.1
1909-10
1908-09
0
0
0
T
1.6
1.0
5.2
2.7
4.5
T
T
0
15.0
1908-09
1907-08
0
0
0
0
T
2.2
4.2
15.2
0
T
0
0
21.6
1907-08
1906-07
0
0
0
T
1.3
0.3
2.9
9.9
3.8
3.5
2.5
0
24.2
1906-07
1905-06
0
0
0
1.7
T
0.8
6.3
5.4
20.4
T
0
0
34.6
1905-06
1904-05
0
0
0
0
1.5
3.3
10.1
13.7
0.1
1.2
0
0
29.9
1904-05
1903-04
0
0
0
0
1.3
0.7
5.6
0.7
3.8
1.0
0
0
13.1
1903-04
1902-03
0
0
0
0
0.8
13.6
2.6
12.4
2.1
1.5
0
0
33.0
1902-03
1901-02
0
0
0
0
T
5.7
11.3
0.7
1.0
T
0
0
18.7
1901-02
1900-01
0
0
0
0
0.1
1.9
2.5
8.7
13.9
2.0
0
0
29.1
1900-01
1899-00
0
0
0
0
0
3.1
T
9.6
0.6
T
0
0
13.3
1899-00
YEAR 
JUL 
AUG 
SEP 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUN 
TOTAL 
YEAR 

All of the data on this page are from the official NWS data archives for Lincoln, NE