Hail, Koochiching
- When
- May 17, 11:08 AM CST
- Where
- Koochiching County, Intl Falls Arpt
- Measured
- 0.75 in hail
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 48.567, -93.400
Hail in Minnesota, May 17, 2001
1 hail, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What forecasters said that day
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 Duluth, MN wrote its last area forecast discussion before the first event at May 17, 1:35 AM CST, 9 hours 33 minutes earlier.
Area forecast discussion, May 17, 1:35 AM CST, 9 hours 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 235 AM CDT THU MAY 17 2001 FORECAST FOCUS IS ON PCPN CHANCES TODAY. MODELS ARE IN GENERAL AGREEMENT THROUGH 48 HRS. AVN THEN BECOMES FASTEST WITH THE SHORT WAVE AND ASSOCIATED FRONTAL BOUNDARY MOVING INTO MN FROM 48 TO 60 HR TIME FRAME. ETA MATCHES WELL WITH H85 THERMAL PROFILE OVER THE FA AND WILL FOLLOW. RADAR MOSAIC FEATURES A LINE OF -SHRA/-TSRA IN NW MN JUST AHEAD OF SFC FRONTAL BOUNDARY IN THE RED RIVER VALLEY IN THE THETA-E RIDGE AXIS. SFC OBS INDICATE THAT THIS ACTIVITY IS MAINLY ELEVATED IN NATURE. THIS AXIS MOVES E INTO EASTERN MN CWFA BY 12Z...BUT ATMOSPHERE BECOMES MORE STABLE. INSTABILITY INCREASES BY 18Z AS SFC BASED LIS DROP TO -2 C OVER THE NORTHERN TIER...WITH CAPE VALUES OF 600 J/KG. LACK OF SUFFICIENT MOISTURE WILL KEEP THESE -TSRA ELEVATED IN NATURE. MENTION FOR TODAY STILL LOOKS GOOD FOR THIS AREA. SHORT WAVE DEPARTS THE CWFA QUICKLY TONIGHT ON THE FAST W FLOW. SFC AND UPPER LEVEL RIDGING FOLLOWS BEHIND. GOOD RADIATIONAL COOLING NIGHT EXPECTED WITH FAIRLY DRY COLUMN AND LACK OF CLOUD COVER. THIS IS REFLECTED IN THE MOS TEMPS AS THEY DROP INTO THE UPPER 30S IN THE NORTH. THIS LOOKS REASONABLE. RIDGING CONTINUES ON FRIDAY. ENOUGH EASTWARD MOVEMENT OF THE RIDGE WILL ALLOW A RETURN FLOW TO BECOME ESTABLISHED BY AFTERNOON. WITH A FEW MORE CLOUDS EXPECTED AND WEAK WAA...WARMER MOS TEMPS ARE ON TARGET. .DLH...NONE. GSF
In the hours before
Special weather statement, May 17, 8:01 AM CST, 3 hours 7 minutes before
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-172000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DULUTH MN 901 AM CDT THU MAY 17 2001 ...WIDELY SCATTERED THUNDERSTORMS EXPECTED IN NORTHERN MINNESOTA... THREAT... NON-SEVERE THUNDERSTORMS EXPECTED. DISCUSSION... AN UPPER LEVEL DISTURBANCE WILL TRACK ACROSS NORTHERN MINNESOTA TODAY...BRINGING A CHANCE FOR WIDELY SCATTERED SHOWERS OR THUNDERSTORMS ACROSS THE NORTHERN THIRD OF MINNESOTA. ANY THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. SPOTTER ACTIVATION... SEVERE WEATHER SPOTTER ACTIVATION IS NOT EXPECTED TODAY. MELDE
The radar
The Duluth radar (KDLH), 212 km away, was scanning. The volume nearest the first event began at 17:08 UTC.
Event by event
1 hail. Local standard time, as filed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Hail in Oklahoma, May 17 to 18, 2001
- Hail and Damaging Winds in Texas, May 17 to 18, 2001
- Hail and Damaging Winds in Colorado, May 17 to 20, 2001
- Flash Flooding in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17 to 19, 2001
- Hail and Damaging Winds in West Virginia, May 17, 2001
- Damaging Winds in Texas, May 17 to 18, 2001
- Flash Flood in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17, 2001
- Flash Flooding in Kentucky, May 17, 2001
- Flash Flood and Hail in West Virginia, May 17, 2001
- Flash Flood in Missouri, May 17, 2001
More
Every storm in Minnesota in 2001Every state in 2001This day in weather historyWarnings in Minnesota, May 2001
Sources
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: 5246817.