Thursday, April 26, 2012

Early 2012 Spring 90 Degree Weather in Lincoln, NE

April 25, 2012 marked the 3rd day this April that temperatures reached or exceeded 90 F in Lincoln, Nebraska. 

This has been an unusually warm year so far with some days having temperatures more typical of Summer in Lincoln, NE. 

March 2012:
March 2012 was the warmest March on record (data 1887-2012).
March 2012 in Lincoln, NE had a high temperature of 91 F, which tied the record for warmest ever observed temperature in the month of March. 
There have only been 4 other years that the temperatures reached 90F or higher in Lincoln (1895, 1907,  & 1910) and all with only 1 day reaching this mark.

April 2012:
April 2012 in Lincoln has seen 3 days with temperatures reaching or exceeding 90 F.
Only two other Aprils have seen 3 or more days of 90 degree weather (1987 with 3 days and 1989 with 6 days)

March - April 2012:
The March-April 2012 total of 4 days with temperatures reaching or exceeding 90 F in Lincoln is only exceeded by the total March-April 1989 total of 6 days.

Keep track of the "heat wave" temperatures in Lincoln during the year at this link:



Tuesday, April 24, 2012

April Colder than March in Lincoln, NE?

 The average temperature in Lincoln as of April 23, 2012 is 54.8F.  The average temperature for last month, March 2012 was 55.0 making this April, so far, 0.2 degrees F colder than March.

The graph shows the temperature departures from normal starting on January 25 though April 23, 2012.  The magnitude of the March 2012 heat wave is amazing and was record breaking producing the warmest March on record (1887-2012).

Have we ever had an April colder than March during the 125 years of data?  Yes, in 1907 March had an average temperature of 44.5F and April had an average temperature of 43.5 F (1.0 degree F colder).

In 1918 April was almost colder than March with March 1918 having an average temperature of 46.7 F and April only 0.2 degrees warmer at 46.9 F.

With well above normal temperatures expected today and tomorrow, we may not hold on to this unusual event of April being colder than March.

Check back at the end of the month to see how it turns out!


Monday, April 23, 2012

National Severe Weather Preparedness Week

National Severe Weather Preparedness Week.

The first ever National Severe Weather Preparedness Week is April 22 – 28. The National Oceanic and Atmospheric Administration (NOAA) and the Federal Emergency Management Agency (FEMA) have partnered together to raise awareness about severe weather threats and to ask each person across the country to “Be a Force of Nature” by knowing their risk, taking action and being an example.
Being a force of nature means pledging to prepare. It also means being connected to others and inspiring them to act. Research shows that people are most likely to prepare when they observe the preparations taken by others. Mobile technology and social media offer great opportunities to do just that. When you are aware of danger, take action and then send a message to save a life.
How else can you be a force of nature?

Building a Weather-Ready Nation requires the action of every person and community. This Presidential Message emphasizes weather-readiness as a national priority. Together we can transform the way the United States responds to severe weather and save more lives.April 22-28, 2012 is the first Annual National Severe Storm Preparedness Week.

For more information check out this NOAA LINK

And, here is a link to a calendar listing of other Weather Awareness Events listed by state.
LINK:  State Weather Awareness Events Calendar

Tuesday, April 17, 2012

Global Temperature Anomalies March 2012

State of the Climate: Global Analysis - March 2012
State of the ClimateGlobal AnalysisMarch 2012
Global Highlights (from NOAA/NCDC).
The combined average temperature over global land and ocean surfaces for March 2012 was the 16th warmest on record at 13.16°C (55.73°F), which is 0.46°C (0.83°F) above the 20th century average of 12.7°C (54.9°F). The margin of error associated with this temperature is ± 0.07°C (0.13°F). March 2012 is the coolest March since 1999. However, it also marks the 36th consecutive March and 325th consecutive month with a global temperature above the 20th century average. The last March with below-average temperature was March 1976 and the last month with below-average temperature was February 1985.
Separately, the global land surface temperature was 0.73°C (1.31°F) above the 20th century average of 5.0°C (40.8°F), making this the 18th warmest March on record. The margin of error is ± 0.13°C (0.23°F). Warmer-than-average conditions occurred across nearly all of Canada, the contiguous United States, Mexico, Europe, Argentina, Peru, and parts of northern and central Russia, India, China, and eastern Brazil. Cooler-than-average regions included Alaska, Australia, eastern and western Russia, and parts of New Zealand.Separately, the global land surface temperature was 0.73°C (1.31°F) above the 20th century average of 5.0°C (40.8°F), making this the 18th warmest March on record. The margin of error is ± 0.13°C (0.23°F).
The March global ocean surface temperature was 0.35°C (0.63°F) above the 20th century average of 15.9°C (60.7°F), tying with 1988 and 1990 as the 14th warmest March on record. The margin of error is ± 0.04°C (0.07°F). The warmth was most pronounced across the north central Pacific Ocean, the North Atlantic Ocean, much of the eastern Indian Ocean, and portions of the mid-latitude Southern oceans.The March global ocean surface temperature was 0.35°C (0.63°F) above the 20th century average of 15.9°C (60.7°F), tying with 1988 and 1990 as the 14th warmest March on record. The margin of error is ± 0.04°C (0.07°F).

Monday, April 16, 2012

April 14, 2012 Central Nebraska Tornadoes

Central Nebraska tornadoes, April 14, 2012.

The tornado photo on the left was taken about 4 miles north northeast of Oxford, Nebraska. (Photo courtesy of Trevor Tetley). At least 4 tornadoes have been confirmed from this event based on a variety of sources, including NWS surveys, storm chaser/spotter video and pictures, emergency management reports and WSR-88D radar data. NWS

Here are the details of the 4 tornadoes in the Hastings, NE, NWS Office County Warning Area on April 14, 2012.

Mitchell County: 1 confirmed EF1 tornado; Location: About 3 miles south southwest of Tipton, Kansas to about 1 mile south southeast of Tipton, Kansas. Rating: EF1; Path Length: 3 miles. Path Width: 300 YARDS; Maximum Estimated Wind Speed: 95 MPH, Time: 203 PM TO 212 PM

Harlan County: 1 confirmed EF0 tornado; Location: About 4 miles north northeast of Oxford, Nebraska.Rating: EF0 ; Path Length: 0.75 miles to 1 mile; Path Width: 40 YARDS; Maximum Estimated Wind Speed: 65 MPH; Time: 616 PM TO 618 PM.

Nuckolls County: 1 confirmed EF0 tornado; Location: About 5 miles west of Byron, Nebraska. Rating: EF0 Path Length: 0.10 miles (brief touch down); Path Width: 40 YARDS Maximum Estimated Wind Speed: 65 MPH; Time: 215 PM TO 215 PM

Thayer County: 1 confirmed EF0 tornado Location: About 2 miles east of Deshler, Nebraska. Rating: EF0; Path Length: 0.10 miles (brief touch down); Path Width: 40 YARDS; Maximum Estimated Wind Speed: 65 MPH; Time: 230 PM TO 230 PM.

For additional information go to this NWS LINK.

April 14, 2012 Tornadoes: Forecast vs. Outcome

April 14, 2012 Tornadoes: Forecast vs. Outcome
The attached illustration is from the Storm Prediction Center (SPC).
Here's an evolution of the convective outlooks issued by the SPC for the April 14, 2012 outbreak, with preliminary storm reports overlaid on the
final Day 1 outlook (bottom right).
Note that the maps start with Day 7,meaning 7 days ahead of the predicted event. Notice how each day the same area was outlined for being at risk for severe weather on April 14, 2012. This event CANNOT be considered a "surprise event" with forecasts (outlooks) pointing to the impacted area a week ahead of time.
Would you like updtes and informtn from SPC on Facebook? Then, use this link>>>>>

April 14, 2012 Tornadoes

April 14, 2012 Tornado Outbreak

The attached map shows the locations of 135 reported tornadoes on Saturday, April 14, 2012.

This is not the final number since several of these tornadoes will have been long track tornadoes and counted (reported) more than once.

The Omaha NWS survey teams found damage paths from 6 tornadoes in Southeast Nebraska and just inside western Iowa that occurred on the evening of April 14 into the early hours of April 15, 2012. These 6 tornadoes, strength and location were:
Sterling, NE (EF0),
Cook, NE (EF2);
Talmage, NE (EF0);
Nebraska City (EF1);
Thurman, IA (EF2); and,
Just east of Council Bluffs, IA (EF1)

There were other tornadoes outside the Omaha NWS County Warning Area and these tornadoes will be listed in the next Blog post.

Wednesday, April 11, 2012

The Record Breaking March 1 - April 9, 2012 Lincoln, NE, Heat Wave

The graph to the left shows the daily temperature departures from normal for Lincoln, Nebraska from March 1 - April 10, 2012. Only one day in March 2012 had an average temperature in Lincoln that was below normal (March 3 at 1 degree below normal). Then from March 4 though April 9, 2012 every day had a daily average temperature that was above normal. There were 11 days that were 20 or more degrees above normal; 6 days that were 25 or more degrees above normal and 2 days that were 30 or more degrees above normal. It is not surpsing then that the statistics show that March 2012 was the warmest on record for Lincoln with 126 years of data (1887-2012)


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Monday, April 9, 2012

March 2012 Warmest on Record for U.S.

March 2012 Warmest On Record for the U.S. (118 years of data)

Climate Highlights — From NOAA/NCDC. March Record and near-record breaking temperatures dominated the eastern two-thirds of the nation and contributed to the warmest March on record for the contiguous United States, a record that dates back to 1895. The average temperature of 51.1 degrees F was 8.6 degrees F above the 20th century average for March and 0.5 degrees F warmer than the previous warmest March in 1910. Of the more than 1,400 months that have passed since the U.S. record began, only one month, January 2006, has seen a larger departure from its average temperature than March 2012.

A persistent weather pattern during the month led to 25 states (dark red on the map) east of the Rockies having their warmest March on record. An additional 15 states had monthly temperatures ranking among their ten warmest. That same pattern brought cooler-than-average conditions to the West Coast states of Washington, Oregon, and California.Every state in the nation experienced a record warm daily temperature during March. According to preliminary data, there were 15,272 warm temperature records broken (7,755 daytime records, 7,517 nighttime records). Hundreds of locations across the country broke their all-time March records. There were 21 instances of the nighttime temperatures being as warm, or warmer, than the existing record daytime temperature for a given date.

Friday, April 6, 2012

Very Warm Year so far (through April 5) in Lincoln, NE

Lincoln, NE, January 1-April 5, 2012 Warmest on Record

The temperature anomaly map to the left shows that many of the lower 48 states are experiencing a very warm year to date (January 1 through April 5, 2012).

The greatest warmth is an anomaly exceeding 10 degrees above normal in parts of Missouri up through Iowa into Minnesota and the Dakotas. In Nebraska, the largest warm temperature anomaly is the Eastern portion of the state.

Looking at the statistics, It is the warmest year to date for Lincoln, NE (with 126 years of data). Here is the ranking of the top ten warmest starts to the year (through April 5 every year, 1887-2012): (Note Omaha, NE, is also listed below and they,too, are having their warmest year on record.

Lincoln, NE: Days: 1/1 - 4/5, Years: 1887-2012
Rank Value Ending Date
1 40.1 4/ 5/2012
2 39.7 4/ 5/1921
3 39.1 4/ 5/1992
4 38.9 4/ 5/1946
5 36.8 4/ 5/2000
6 36.7 4/ 5/1990
7 36.3 4/ 5/1931, 4/ 5/2006, 4/ 5/1987
10 36.2 4/ 5/1986


Omaha, NE, Days: 1/1 - 4/5; Years 1871-2012
Rank Value Ending Date
1 41.2 4/ 5/2012
2 39.3 4/ 5/1921
3 38.4 4/ 5/1878
4 38.0 4/ 5/1946
5 37.8 4/ 5/1992
6 36.7 4/ 5/1928, 4/ 5/2000
8 36.6 4/ 5/1990
9 36.4 4/ 5/1987
10 36.3 4/ 5/1931

Wednesday, April 4, 2012

Lincoln: Jan. 1-March 31, 2011, Warmest on Record

January 1-March 31, 2012: Warmest on Record for Lincoln, NE.

The map to the left shows the temperature anomalies for the first 3 months of 2012. Much or the upper Midwest and Great Plains experienced a much warmer than normal January 1-March 31, 2012 time period.

Checking the data for Lincoln, NE, it was the warmest on record for the first 3 months of the year. Here is the ranking for the top ten warmest January 1-March 31 time periods.



Rank Value Ending Date
1 38.8 3/31/2012
2 38.6 3/31/1992
3 38.3 3/31/1921
4 37.8 3/31/1946
5 36.2 3/31/1990, 3/31/1987
7 36.1 3/31/2000, 3/31/1931
9 35.6 3/31/1935
10 35.5 3/31/2006

Monday, April 2, 2012

A Record Breaking Warm March in Lincoln, NE


March 2012 Warmest on Record for Lincoln, NE. (Data, 1887-2012).
March 2012 Records:
Record High temperature of 83 F on March 13, 2012. Old record was 80 F set in 2007.

Record High Minimum temperature of 60 F on March 17, 2012. Old record was 58 F set in 1894.

Record High Minimum temperature of 62 F on March 18, 2012. Old record was 56 F set in 1903.

Record High temperature of 91 F on March 31, 2012. Old record was 88 F set in 1946.

Tied record warmest for any day in March with 91 F on March 31.

March 2012, Average High Temperature of 69.5 F was Warmest on Record and 17.2 degrees above normal

March 2012, Average Low Temperature of 40.4 F was Warmest on Record and 12.5 degrees above normal.

March 2012, Mean Temperature (daily highs & lows averaged together) of 55 F was Warmest on Record and 14.9 degrees above normal.

March 2012 had 10 days with temperatures reaching 80F or higher. This is a new record. The old record was 6 days set in 1986 and 1910.