Courtesy: Chanhassen National Weather Service
A sluggish summer pattern spawned slow moving thunderstorms over parts of Minnesota on August 16 and 17th. Rains were intense with some of these storms with tropical downpours over sections of Cass, Chippewa, Dakota, Goodhue, Otter Tail, and Dakota County. One of the highest 24-hour rainfall totals found so far was 5.56 inches at Hampton in Dakota County. 4.86 inches was measured two miles to the northeast of Cannon Falls. These heavy rains washed out culverts and caused damage to roads in southeastern Dakota County.
Outside the most intense rains, the moisture was welcome. Much of central and southern Minnesota is short of moisture. Even with the recent rainfall, most areas in central and southern Minnesota are about two to five inches short of average over the past seven weeks.
Below are storm reports and public information statements and storm reports from the National Weather Service.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
152 PM CDT MON AUG 18 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM HEAVY RAIN 2 E ASBURY 44.94N 95.52W
08/17/2014 E4.50 INCH CHIPPEWA MN PUBLIC
0600 PM HEAVY RAIN 3 W GLENWOOD 45.66N 95.44W
08/17/2014 M2.74 INCH POPE MN CO-OP OBSERVER
1000 PM FLASH FLOOD CASTLE ROCK 44.56N 93.19W
08/17/2014 DAKOTA MN DEPT OF HIGHWAYS
UNPAVED GRAVEL ROAD DAMAGE REPORTED BY A ROAD GRADER.
0600 AM HEAVY RAIN 2 NNE JORDAN 44.71N 93.59W
08/18/2014 M2.10 INCH SCOTT MN COCORAHS
0700 AM HEAVY RAIN NE ZUMBROTA 44.30N 92.67W
08/18/2014 M2.46 INCH GOODHUE MN CO-OP OBSERVER
0700 AM HEAVY RAIN 4 SSW CANNON FALLS 44.47N 92.93W
08/18/2014 M2.03 INCH GOODHUE MN MESONET
LITTLE CANNON RIVER NEAR CANNON FALLS TIPPING BUCKET
0700 AM HEAVY RAIN 1 N WELCH 44.58N 92.69W
08/18/2014 M3.10 INCH GOODHUE MN TRAINED SPOTTER
0800 AM HEAVY RAIN 2 NE CANNON FALLS 44.54N 92.87W
08/18/2014 M4.86 INCH GOODHUE MN COCORAHS
0800 AM HEAVY RAIN 2 SW CANNON FALLS 44.50N 92.93W
08/18/2014 M2.91 INCH GOODHUE MN CO-OP OBSERVER
0800 AM HEAVY RAIN 4 SE RED WING 44.54N 92.54W
08/18/2014 M2.68 INCH GOODHUE MN COCORAHS
0800 AM HEAVY RAIN 2 NNE ZUMBROTA 44.32N 92.66W
08/18/2014 M2.60 INCH GOODHUE MN COCORAHS
0800 AM HEAVY RAIN 4 W WASTEDO 44.41N 92.93W
08/18/2014 M2.19 INCH GOODHUE MN MESONET
LITTLE CANNON RIVER TIPPING BUCKET SOGN MN
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1013 AM CDT MON AUG 18 2014
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0812 PM HEAVY RAIN HAMPTON 44.61N 93.00W
08/17/2014 M5.00 INCH DAKOTA MN PUBLIC
0711 PM FLASH FLOOD 2 SSW MIESVILLE 44.57N 92.82W
08/17/2014 DAKOTA MN PUBLIC
MIESVILLE TRAIL WASHED OUT. REPORT GATHERED
VIA TWITTER.
0645 PM FLOOD 4 S MIESVILLE 44.54N 92.80W
08/17/2014 DAKOTA MN LAW ENFORCEMENT
COUNTY DISPATCH REPORTED INTERSECTIONS UNDER
WATER.
1104 AM HEAVY RAIN STARBUCK 45.61N 95.53W
08/17/2014 M4.30 INCH POPE MN TRAINED SPOTTER
1019 AM HEAVY RAIN 1 W GLUEK 44.98N 95.49W
08/17/2014 M7.50 INCH CHIPPEWA MN PUBLIC
UPDATED FROM EARLIER.
1019 AM HEAVY RAIN GLUEK 44.98N 95.47W
08/17/2014 M7.70 INCH CHIPPEWA MN PUBLIC
1019 AM HEAVY RAIN 1 E GLUEK 44.98N 95.45W
08/17/2014 M7.70 INCH CHIPPEWA MN PUBLIC
1019 AM HEAVY RAIN 2 W GLUEK 44.98N 95.51W
08/17/2014 M7.50 INCH CHIPPEWA MN PUBLIC
UPDATED FROM EARLIER.
1015 AM HEAVY RAIN 8 NE MONTEVIDEO 45.02N 95.59W
08/17/2014 M4.70 INCH CHIPPEWA MN TRAINED SPOTTER
0921 AM HEAVY RAIN 1 W GLUEK 44.98N 95.49W
08/17/2014 E6.50 INCH CHIPPEWA MN PUBLIC
0830 AM HEAVY RAIN 3 W GLENWOOD 45.66N 95.44W
08/17/2014 M2.30 INCH POPE MN CO-OP OBSERVER
3 HOUR RAINFALL TOTAL.