Norman storm history

The Red River at Halstad (MN) rose above flood stage around 4 PM CST on March 31st and remained above flood stage until around 3 AM CST on April 17th. The river peaked at roughly 39.31 feet around 8 PM CST on April 6th. Unofficially, 39.31 feet would be the third highest modern-d…

Mesonet sites in Norman County reported over 12 hours of Blizzard conditions, including 1/4 mile visibility and wind gusts up to 38 mph.

The Mesonet station (MN058), in Halstad MN, recorded a 59 mph wind gust during the morning hours.

Measurement of 6.0 inches at Twin Valley, MN at the CoCoRaHS station MN-NR-1 representing the storm total.

Report of tree damage. Time estimated from radar.

Measured gust at NDAWN mesonet station 210019 1 north Ada MN.

Measured gust at mesonet station 2438D Hadler MN.

Measured gust at NDAWN mesonet station 216419 east of Perley MN.

Measured gust at NDAWN mesonet station 215012 Waukon MN.

Measured gust at NDAWN mesonet station 216419 6 miles east of Perley, MN.

Large tree limbs blown down.

Twin Valley measured 7 inches of snow.

Mesonet station DVI05047 Gary MN 3 NE reported a wind chill of minus 45.

Mesonet near Hendrum measured a wind chill of negative 47 degrees.

Wind and cold air temperatures combined to create excessive cold conditions with apparent temperature as cold as -52F on the morning of the 20th near the Hadler sensor.

Received a report of 6 inches of snow, storm total. Report received at 1900 on 12/19 as a delayed report.

Snow Squall. RWIS Sensor 10 miles west of ADA went from 22G31 1/4SM -SN at 1510Z to 33G38 1/8SM +SN at 1520Z with corresponding radar signature at time.

Portions of Norman county was in D2 Drought for the first half of November. Mainly the SE and southern portions.

Norman county experienced a week of D2 drought in October. Ongoing conditions at the end of the month.

Halstad, MN DOT sensor reported a peak wind gust of 62 MPH.

Broadcast Media relays report of golf ball sized hail east of Lockhart. Hail damage to the house, and 2 windows blown out.

Ping-pong to golf ball sized hail outside of Gary Minnesota. Photo relayed via social media.

Measured gust at the Ada NDAWN 10 foot sensor.

Public relays report of mature choke cherry tree blown down.

Public reports 6 inches of storm total snow in Halstad.

Blizzard conditions of 1/4SM visibility or less and wind gusts of 35 MPH or more began around 4AM and persisted until around 4PM at the Halstad DOT site. Peak winds were 47mph.

Public reports 7 inches of storm total snow in Ada.

DOT sensor neat Halstad measured winds gusting in excess of 40mph and up to visibility of a quarter mile or less.

Quarter to Ping-Pong ball sized hail reported by public east of Borup. Time estimated via radar.

Spotter sent us a photo of a tornado on the ground via Twitter. It occurred in open fields, which mitigated any damage. Therefore, the rating of EF-U has been assigned with estimated path width and length.

Norman county Emergency Manager confirmed tornado touchdown east of Shelly, heading N-NW. This tornado lifted across the county line into Polk county. It occurred in open fields, which mitigated any damage. Therefore, the rating of EF-U has been assigned with an estimated path wi…

Corrects previous hail report from 3 W Borup. Facebook report.

Halstad - Crest of 34.44 ft occurred on 4/23.

Hendrum gage, on the Wild Rice River. Crested at 28.42 ft on April 19th at 18:15. Some missing data near the crest so true peak may not have been captured.

Shelly gage, on the Marsh River. Crested at 20.54 ft on April 14th at 22:00.

Twin Valley gage, on the Wild Rice River. Crested at 11.99 ft on April 14th at 11:45.

Public reports 8 inches of snow in Hendrum.

Public reports 11 inches between Twin Valley and Ada. Relayed via Broadcast Media.

Public report of 6.0 inches in Hendrum.

Broadcast Media report of 6.5 inches in Shelly.

Halstad MN RWIS reporting 35 mph or greater sustained winds and low visibility since 6:25 pm.

Halstad MNDOT station measures a 64 mph wind gust.

Halstad RWIS reported wind chills below -40F for multiple hours, with the lowest of those being -50F.

Hendrum webcam shows 1/4 SM visibility with nearby NDAWN site showing frequent gusts over 35 MPH.

NDAWN site Ada 1 N reports -40 wind chill.