Heavy Rains: July 12-13, 2018

July 12-13, 2018 Rainfall
July 12-13, 2018 Rainfall
Courtesy: MNDNR State Climatology Office

Thunderstorms bring flooding rains over parts of Minnesota on July 12-13th, 2018.

A weak cold front spawned thunderstorms during the early morning hours Thursday, July 12, dumping up to seven inches of rain over Kanabec and southern Pine County, causing many roads to be flooded. One of the highest totals found so far was 7.84 inches in the town of Mora at the Kanabec Soil and Water Conservation District office. Five inches of rain fell over much of Kanabec, into Mille Lacs, southern Aitkin and southern Pine Counties. Mille Lacs Lake rose a half a foot in 24 hours.

Heavy rain also fell over northern St. Louis County, with Cook seeing 4.92 inches on July 12th.

Thunderstorms re-developed in the evening and dropped very heavy rains over the Twin Cities and southern Minnesota. Just over a half-inch (.51 inches) fell in 5 minutes at the Twin Cities International Airport. The total amount of rainfall was 2.17 inches through 1pm on July 13. Prior to the heavy rains, much of southern Minnesota was oppressively hot and humid. With a high of 95 degrees, the Twin Cities had a daily maximum at or above 90 degrees for the 13th time this summer. At 5pm, the Twin Cities International Airport recorded a temperature of 95 degrees and a dew point temperature of 76, creating a Heat Index of 108. This is the highest Heat Index of the summer so far at the Twin Cities.

Below are Storm Reports and Public Information Statements from the National Weather Service.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1204 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM     FLASH FLOOD      ONAMIA                  46.07N 93.66W
07/12/2018                   MILLE LACS         MN   EMERGENCY MNGR
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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1230 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0909 AM     FLASH FLOOD      11 NNW QUAMBA           46.05N 93.28W
07/12/2018                   KANABEC            MN   EMERGENCY MNGR
ONGOING WATER FLOWING OVER THE ROADS.
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
253 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 AM     FLASH FLOOD      GRASSTON                45.79N 93.15W
07/12/2018                   KANABEC            MN   LAW ENFORCEMENT
RAILROAD TRACK WASHED OUT IN GRASSTON MN.
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
309 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0220 PM     FLOOD            10 N MORA               46.03N 93.28W
07/12/2018                   KANABEC            MN   BROADCAST MEDIA
A FEW INCHES OF WATER FLOWING OVER COUNTY
HWY 3 NEAR INTERSECTION OF HWY 65, NORTH OF
MORA (SOCIAL MEDIA VIDEO). ALSO, SHERIFF`S
OFFICE REPORTS NEARLY ALL GRAVEL ROADS IN
KANABEC COUNTY SUFFERED DAMAGE FROM FLOODING
THIS MORNING; STILL BEING ASSESSED.
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
341 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0526 AM     LIGHTNING        2 W DULUTH              46.78N 92.16W
07/12/2018                   ST. LOUIS          MN   NEWSPAPER
IT IS BELIEVED LIGHTNING STRUCK A CHURCH IN
THE PIEDMONT NEIGHBORHOOD OF DULUTH WHICH
STARTED A FIRE IN THE ROOF, CAUSING DAMAGE
TO THE ROOF AND CUPOLA.
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
242 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 AM     HEAVY RAIN       10 E PINE CITY          45.82N 92.77W
07/12/2018  M4.50 INCH       PINE               MN   PUBLIC
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
104 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 PM     HEAVY RAIN       3 SW PINE RIVER         46.69N 94.44W
07/12/2018  E4.50 INCH       CASS               MN   PUBLIC
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
100 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1110 AM     HEAVY RAIN       2 SW HINCKLEY           46.00N 92.96W
07/12/2018  E4.04 INCH       PINE               MN   TRAINED SPOTTER
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
832 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0722 PM     TSTM WND DMG     RED WING                44.56N 92.54W
07/12/2018                   GOODHUE            MN   LAW ENFORCEMENT
MULTIPLE REPORTS OF TREES AND DAMAGE AND
POWERLINES DOWN IN RED WING. TIME ESTIMATED
FROM RADAR.
---
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
751 PM CDT THU JUL 12 2018
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM     TSTM WND DMG     GAYLORD                 44.56N 94.22W
07/12/2018                   SIBLEY             MN   LAW ENFORCEMENT
BRANCHES DOWN IN TOWN AND POWERLINE DAMAGE.

Last modified: July 13, 2018

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