Storm log
Friday, Aug. 13, 2010
Flash flooding in Faribault under a severe thunderstorm warning
The National Weather Service logged eight storm reports within 20 miles: one hail, two wind, two flood and three rain. It issued three severe thunderstorm warnings for Rice County; all of them included Faribault.

- Largest hail within 20 miles
- 0.5 in.In Morristown
- Storm reports
- 8Within 20 miles
- Warnings
- 3For Rice County
- Under a warning
- 3 hr 6 minFaribault, under a tornado, severe thunderstorm or flash flood warning
- Faribault warned
- YesThree warnings
- Forecast in effect: The Storm Prediction Center's outlook in effect when the storm began, issued at 7:59 p.m. the evening before, had Faribault in a slight risk of severe storms. Its chances within 25 miles of Faribault: a tornado 5%; hail 1 inch or larger 15%; wind 58 mph or stronger 15%.
- In 2010: Rice County's eighth day with a severe thunderstorm warning, and the 18th storm day of the year.
- Against the records: 73 mph is the fourth-highest measured gust within 20 miles since 2008.
- Severe thunderstorm warning, 2:09 to 3:15 a.m.; over Faribault
- Severe thunderstorm warning, 3:14 to 4:15 a.m.; over Faribault
- Severe thunderstorm warning, 4:11 to 5:15 a.m.; over Faribault
- 8 storm reports, 2:44 to 8:18 a.m.
Bars: warnings, from issue to end; filled when the warning covered Faribault. Dots: storm reports at the time of each (snow and rain totals at the time they were measured).
- Temperature 64° to 84°
- Wind gusts to 28 mph
- Pressure 29.59 to 29.76 in.
High 84° at 1:54 p.m., low 64° at 12:34 a.m., Aug. 14. Peak gust 28 mph at 4:54 a.m. Shaded: the storm's round (2:09 to 5:15 a.m.). The airport reports about every 20 minutes, so a gust between its reports isn't in this record. Pressure is its altimeter setting, in inches of mercury. Over The airport's day Midnight to midnight standard time all year (1 a.m. to 1 a.m. in daylight time): the day the airport's high and low cover. This site's report card: midnight to midnight standard time.
- Hail 1
- Wind 2
- Flooding 2
- Rain total 3
- Severe thunderstorm warning outlines 3
- Hail dots are sized by the hail.
- Faribault
- 20 miles
Readings saved when the warning ended
Chanhassen radar (KMPX), saved during the warning
Within 20 miles of Faribault, from the National Weather Service; the numbers match the map.
- Faribault 3
- Near Faribault 2
- Dennison 1
- Morristown 1
- Nerstrand 1
| No. | Time | Report | Where | From Faribault | Reported by |
|---|---|---|---|---|---|
| 1 | 2:44 a.m. | Hail 0.5 in. (small marble) | in Morristown | 10 miles southwest of Faribault | Trained storm spotter |
| 2 | 2:57 a.m. | Thunderstorm wind damageRemark12 TO 15 INCH BRANCHES DOWN...TIME ESTIMATED WITH RADAR. | 9 miles west-northwest of Faribault | 9 miles west of Faribault | Trained storm spotter |
| 3 | 2:57 a.m. | Thunderstorm wind gust 73 mph, measuredRemarkTIME ESTIMATED WITH RADAR. | 9 miles west-northwest of Faribault | 9 miles west of Faribault | Trained storm spotter |
| 4 | 3:22 a.m. | Flash floodRemarkSTREET FLOODING...CAR STALLED IN WATER IN TOWN. | in Faribault | In Faribault | Trained storm spotter |
| 5 | 3:35 a.m. | Flash floodRemarkSTREET FLOODING. | in Faribault | In Faribault | Trained storm spotter |
| 6 | 8:18 a.m. | Heavy rain 3 in. | in Faribault | In Faribault | Trained storm spotter |
| 7 | 8:18 a.m. | Heavy rain 4.5 in. | in Nerstrand | 11 miles east of Faribault | TV or radio |
| 8 | 8:18 a.m. | Heavy rain 3.5 in. | in Dennison | 14 miles northeast of Faribault | Trained storm spotter |
Each opens to its details. “What happened” is this site's own check, not the National Weather Service's verification: a report of the warning's kind, at warning size, inside its outline while it was in effect.
Severe thunderstorm warning 2:09 to 3:15 a.m. Included Faribault
- Issued
- 2:09 a.m.
- In effect until
- 3:15 a.m.
- Area
- The outline the weather service drew (on the map)
- Faribault
- Yes, inside its area.
- What happened (the site's check)
- Yes: thunderstorm wind damage 9 miles west-northwest of Faribault at 2:57 a.m.
Severe thunderstorm warning 3:14 to 4:15 a.m. Included Faribault
- Issued
- 3:14 a.m.
- In effect until
- 4:15 a.m.
- Area
- The outline the weather service drew (on the map)
- Faribault
- Yes, inside its area.
- What happened (the site's check)
- Yes: thunderstorm wind damage in Farmington at 3:25 a.m.
Severe thunderstorm warning 4:11 to 5:15 a.m. Included Faribault
- Issued
- 4:11 a.m.
- In effect until
- 5:15 a.m.
- Area
- The outline the weather service drew (on the map)
- Faribault
- Yes, inside its area.
- What happened (the site's check)
- No report of its kind at warning size fell inside it while it was in effect.
- Aug. 2, 2009: 0.5-inch hail 2 miles south-southeast of Owatonna; severe thunderstorm warning nearby
- June 22, 2013: 0.5-inch hail 4 miles east of Nerstrand
- Nov. 28, 2016: 0.5-inch hail 1 mile north-northeast of Waseca
Storm days since 2005 whose first tag is Hail, as this one's is, nearest in largest hail, then in time of year; never within two days of this one.