Flash Flooding and Hail in Minnesota, August 28, 2002

Deaths

0

Injuries

0

Property damage

$1,000

Crop damage

None recorded

Events

18

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.

NWS Grand Forks, ND wrote its last area forecast discussion before the first event at Aug 28, 9:25 AM CST, 3 hours 35 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1025 AM CDT WED AUG 28 2002

FORECAST CHALLENGE FOR IS PRECIPITATION. LATEST SATELLITE IMAGERY
SHOWS ONLY AREA NOT COVERED BY CLOUDS IS IN WC MN. KMVX HAS LINE OF
CONVECTION ALONG A BDE-GFK LINE...WITH OTHER SCATTERED STORMS
THROUGH S 2/3RDS OF AREA. CURRENT MSAS SURFACE ANALYSIS HAS LOW
CENTERED JUST E OF MOBRIDGE...WITH INVERTED TROF EXTENDING THROUGH
AREA ALONG A JMS-GFK-HCO LINE. WHEN COMPARING ATMOSPHERIC CONDITIONS
TO MODEL INITIALIZATIONS...AVN CLOSEST. SURFACE BOUNDARY MOVES
SLIGHTLY E TODAY...KEEPING THETA-E RIDGE...GOOD INSTABILITY...MID
LEVEL LIFT...SURFACE MOISTURE CONVERGENCE...OVER MUCH OF AREA.
CONSIDERING THAT MODEL SOUNDINGS HAVE CAPES FROM 2000-3000 WITH NO
CAP OVER AREA BY LATE AFTERNOON...ADDITIONAL THUNDERSTORMS...SOME
WITH HEAVY RAIN ARE LIKELY THROUGH THE REMAINDER OF TODAY...WITH THE
POTENTIAL FOR SOME SEVERE STORMS AS DAYTIME HEATING INCREASES. ALL
IN ALL...CURRENT FORECAST PRETTY WELL IN HAND...WITH ONLY MINOR
CHANGES NEEDED.

.FGF...NONE.

NG

The Fargo/Grand Forks radar (KMVX), 153 km away, was scanning. The volume nearest the first event began at 19:02 UTC.

Open the radar archive at this moment

Hail

Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

Flash Flood

Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

Thunderstorm Wind

Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

• Hail and Damaging Winds in South Dakota, August 28, 2002$1.0 million · 1 in hail · 5 events
• Flash Flood and Hail in Nebraska, August 28, 2002$81,000 · 1.75 in hail · 6 events
• Tornado and Flash Flood in Colorado, August 28, 2002$50,000 · F0 · 6 events
• Flash Flooding in Colorado, August 28, 2002$50,000 · 4 events
• Tornado in Wyoming, August 28, 2002$30,000 · F0 · 1 event
• Tornadoes and Hail in Colorado, August 28, 2002F0 · 18 events
• Tornado and Flash Flooding in North Dakota, August 28, 2002F0 · 12 events
• Hail in South Dakota, August 28, 20021.75 in hail · 11 events
• Flash Flooding in Virginia, August 28, 20024 events
• Hail in New Mexico, August 28, 20021 in hail · 4 events
• Waterspouts in North Atlantic Coastal Waters, August 28, 20023 events
• Flash Flood and Hail in Arizona, August 28, 2002$10,000 · 3 in hail · 3 events

Every storm in Minnesota in 2002Every state in 2002This day in weather historyWarnings in Minnesota, August 2002

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: 5317881, 5317882, 5317799, 5317800, 5317801, 5317802, 5317803, 5317804, 5317805, 5317806, 5317807, 5317813, 5317808, 5317814, 5317809, 5317810, 5317811, 5317812.