Snowmelt flooding along the Minnesota Tributaries began in mid-April, with a few locations persisting into early May.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FGF wrote it up.
Snowmelt flooding along the Minnesota Tributaries began in mid-April, with a few locations persisting into early May.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before the first event at Apr 17, 10:14 PM CST, 1 hour 46 minutes earlier.
Area Forecast Discussion National Weather Service Grand Forks ND 1114 PM CDT Mon Apr 17 2023 .UPDATE... Issued at 1114 PM CDT Mon Apr 17 2023 Thin high clouds continue to slowly move into the FA from the west. Wind speeds have finally become light and they will start shifting around to the east-southeast Tuesday morning. UPDATE Issued at 625 PM CDT Mon Apr 17 2023 It is looking to be a quiet night, with winds becoming light and only some high thin cirrus spreading in. After peaking today in the 40s, lows tonight should fall back below freezing, into the 20s. && .SHORT TERM...(This evening through Tuesday night) Issued at 339 PM CDT Mon Apr 17 2023 Today and Tuesday Weather impacts are not anticipated today or Tuesday as mostly sunny skies prevail across the area. High pressure continues to dominate the Northern Plains through the remainder of the day as a shortwave H5 ridge pushes to the east. Look for an increase in high clouds during the overnight period, with a continued expansion of cloud cover during the day Tuesday. This will be in response to an approaching upper low that is expected to impact the area by mid- week. Highs for Tuesday will range from the low 40s in the Devils Lake Basin, to the low 50s in west-central Minnesota. .LONG TERM...(Wednesday through Monday) Issued at 339 PM CDT Mon Apr 17 2023 H5 low pressure impacts the area starting early Wednesday, with precipitation chances increasing late Tuesday night. Temperatures early Wednesday morning support snow from the Hwy 200 corridor and points north, but then rebound late in the morning, with snow changing to rain. Showers prevail across the area through much of Wednesday afternoon before changing back to snow late Wednesday night into Thursday morning. The majority of ensemble members keep precipitation type as all snow during the day Thursday; however, with temperatures climbing above freezing, accumulations will be inhibited. Currently, the probability of receiving 1 inch or more snow is around 50 percent for Thursday into Thursday night, with the best chances occurring along and north of Hwy 200. Friday through Sunday: A chance for light snow lingers into Friday and Saturday , along with cooler than average temperatures. Highs are only expected to reach the 30s Friday and Saturday, with 40s on Sunday. It is uncertain at this time how much moisture will be available ahead of a second H5 low that traverses the region late Saturday. Current guidance keeps the flow rather transient during this period, which should serve to limit precipitation amounts. && .AVIATION...(For the 06Z TAFS through 06Z Tuesday night) Issued at 1114 PM CDT Mon Apr 17 2023 Overall this will be a low impact set of TAFs. The main thing of note is that the light winds will shift around to the east- southeast on Tuesday. Still only expect high clouds for most of the period, but some mid clouds may start to arrive closer to 00z Wed. && .HYDROLOGY...(Tuesday through Sunday) Issued at 400 PM CDT Mon Apr 17 2023 Snowmelt continues across the Red River basin, with meltwater beginning to enter the river system in spots where it had been previously slow to enter. Overall, river responses are becoming more widespread, and are expected to continue to increase in the coming days. Temperatures trend toward normal to below normal through the week with the snowpack melt progression continuing through the week. The rate of rise and ultimate crests remain uncertain due to forecast temperatures, ongoing snowmelt runoff, and additional precipitation chances expected this week. However it is looking more likely that southern valley crests could come this weekend into early next week, with northern valley crests toward next week into early May. Overland flooding continues across much of the area. Areal flood warnings remain in effect to account for an increase in overland flooding across the basin. As the meltwater increases across the area, increases in overland flooding especially in areas of southeastern ND are expected. Ice jams remain a contributor to flooding in the Crookston area and near Neche. The Pembina River near Neche has rapidly risen today due to the ice jam, and is expected to continue to rise into tomorrow. Previous ice jam history with that amount of water flow has put the river back into moderate flooding, and that trend is possible again with the ice jamming currently ongoing. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && UPDATE...Godon SHORT TERM...Lynch LONG TERM...Lynch AVIATION...Godon
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Alvarado gage, on the Snake River. Crested at 107.30 ft on April 19th at 16:30.
Climax gage, on the Sandhill River. Crested at 20.69 ft on April 24th at 02:15.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2023Every state in 2023This day in weather historyWarnings in Minnesota, April 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1097005, 1097004.