| June 1999 | Hail | Harrison | $20,000 | Golfball size hail reported on east side of Harrison, NE |
| June 1999 | Hail | Harrison | $10,000 | 2.50 inch hail reported 22 miles northeast of Harrison, NE |
| June 1999 | Hail | Harrison | $3,000 | Golfball size hail reported 22 miles northeast of Harrison, NE |
| July 2009 | Hail | Harrison | $2,000 | Hail from 3/4 to 1.5 inches in diameter reported. Some windows broken. |
| May 1999 | Thunderstorm Wind | Harrison | $2,000 | Thunderstorm winds blew down fences 42 miles south of Harrison, NE |
| July 2010 | Thunderstorm Wind | Harrison | $1,000 | A 6 inch diameter tree limb was broken off. Also received 1.30 inches of rain. Estimated time of report. |
| July 2023 | Thunderstorm Wind | Harrison | - | Trained spotter estimated 60 mph wind gust. |
| July 2023 | Hail | Harrison | - | Report for golf ball sized hail 11 miles north northwest of Fort Robinson. |
| July 2023 | Thunderstorm Wind | Harrison | - | Large tree branch greater than 6 inches broke and fell on house due to thunderstorm wind. Time estimated via radar. |
| September 2023 | Hail | Harrison | - | The public reported golf ball sized hail in the town of Harrison. |
| September 2023 | Hail | Harrison | - | Tennis ball sized hail was reported by a Storm Chaser in the town of Harrison. |
| July 2019 | Funnel Cloud | Harrison | - | A funnel cloud was repeatedly dropping and lifting 18 miles north of Harrison. |
| July 2019 | Hail | Harrison | - | Large hail broke the windows on the driver's vehicle. |
| August 2019 | Thunderstorm Wind | Harrison | - | Severe winds from overnight thunderstorm knocked down several large tree limbs on property. |
| June 2017 | Hail | Harrison | - | Golf ball size hail was observed two miles north of Harrison. |
| June 2017 | Heavy Rain | Harrison | - | One and a third inches of rain fell in 45 minutes four miles northwest of Harrison. |
| July 2017 | Thunderstorm Wind | Harrison | - | Estimated wind gusts of 60 mph were observed. |
| July 2017 | Hail | Harrison | - | Quarter to half dollar size hail was observed northeast of Harrison. |
| September 2016 | Hail | Harrison | - | Golf ball size hail was reported 17 miles northeast of Harrison. |
| September 2016 | Hail | Harrison | - | Pea to golf ball size hail covered the ground nine miles northeast of Harrison. |
| September 2016 | Thunderstorm Wind | Harrison | - | Estimated 60 mph wind gusts were reported at Harrison, with scattered power outages. A rotating wall cloud was sighted south of Harrison. |
| September 2016 | Hail | Harrison | - | Quarter size hail was reported four miles northeast of Harrison. |
| June 2015 | Hail | Harrison | - | Quarter size hail was observed at Harrison. |
| June 2015 | Hail | Harrison | - | Quarter size hail was observed at Harrison. |
| June 2015 | Flash Flood | Harrison | - | Two to four inches of rain in less than two hours produced flash flooding. Warbonnet, Van Tassel and Monroe Creeks were running over their banks with lowland flooding reported. |
| June 2015 | Hail | Harrison | - | Quarter size hail was observed eight miles north-northwest of Harrison. |
| July 2015 | Hail | Harrison | - | Quarter size hail was observed four miles northwest of Harrison. |
| July 2015 | Hail | Harrison | - | Quarter size hail was observed four miles west-northwest of Harrison. |
| July 2015 | Hail | Harrison | - | Quarter size hail was observed 20 miles north of Harrison. |
| April 2014 | Hail | Harrison | - | Quarter size hail was reported north of Harrison. |
| May 2014 | Hail | Harrison | - | Penny to quarter size hail was reported west of the Agate Fossil Beds National Monument. |
| May 2014 | Hail | Harrison | - | Penny to quarter size hail was observed seven miles northeast of Watson Ranch. |
| June 2014 | Hail | Harrison | - | Quarter size hail was observed 14 miles south-southeast of Harrison. |
| July 2014 | Hail | Harrison | - | Quarter to half dollar size hail was reported in Harrison. |
| September 2014 | Heavy Rain | Harrison | - | Three and three-quarters inches of rain was reported. |
| July 2014 | Hail | Harrison | - | Quarter to golf ball size hail was reported in Harrison. |
| June 2014 | Hail | Harrison | - | Quarter to ping pong ball size hail was observed eight miles west of Fort Robinson. |
| August 2013 | Hail | Harrison | - | Dime to quarter size hail was reported south of Harrison. |
| August 2013 | Hail | Harrison | - | Quarter to half dollar size hail was reported south of Harrison. |
| May 2013 | Tornado (EF0) | Harrison | - | A weak tornado was on the ground for five minutes before it lifted. The observer was looking west from State Highway 71. No damage was reported. |
| July 2013 | Hail | Harrison | - | Penny to quarter size hail was reported south of Harrison. Several eaves troughs were damaged. |
| June 2011 | Thunderstorm Wind | Harrison | - | NDOR sensor measured a thunderstorm wind gust of 64 mph. |
| May 2011 | Tornado (EF0) | Harrison | - | Report received from 911 operator that public reported tornado, storm chaser in the area only reported funnel cloud. |
| May 2011 | Tornado (EF0) | Harrison | - | Brief touchdown in open area with no damage reported. |
| June 2010 | Hail | Harrison | - | Estimated time of report. |
| July 2010 | Hail | Harrison | - | Most of the hailstones were quarter size, with some larger stones the size of half dollars. Also had 60-70 MPH winds with very heavy rainfall. |
| May 2010 | Hail | Harrison | - | Time of report was 1100MST. |
| July 2010 | Hail | Harrison | - | Some as big as half dollars. |
| July 2009 | Hail | Harrison | - | Thunderstorm also produced 2.40 inches of rainfall at location. |
| July 2009 | Flash Flood | Harrison | - | Runoff from heavy rain caused Indian Creek to overflow into adjacent meadows for a short time. |
| July 2008 | Hail | Harrison | - | Also brief wind gusts estimated from 40 to near 60 mph. |
| May 2006 | Thunderstorm Wind | Harrison | - | Estimated wind gusts from 60 to 70 mph with some 3/4 inch hail. |
| September 2005 | Hail | Harrison | - | Quarter to golfball sized hail reported along with estimated 60 mph wind gusts. |
| May 2003 | Hail | Harrison | - | 3/4 to 1 inch diameter hail reported. |
| May 2003 | Tornado (F0) | Harrison | - | Tornado reported over open country. |
| June 2003 | Thunderstorm Wind | Harrison | - | 5 inch diameter tree limbs blown down. |
| May 2000 | Thunderstorm Wind | Harrison | - | 60 mph wind gust reported at Agate Fossil Beds National Monument. |
| July 2000 | Hail | Harrison | - | Hail covered the ground 3 inches deep. |
| June 1999 | Tornado (F0) | Harrison | - | Tornado reported north of Henry, NE |
| June 1999 | Tornado (F0) | Harrison | - | Tornado 10 miles north of Scottsbluff, NE |