1 high wind, as filed by the National Weather Service.
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 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 Great Falls, MT wrote its last area forecast discussion before the first event at Jun 29, 8:10 AM MST, 1 hour 50 minutes earlier.
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
910 AM MDT SAT JUN 29 2002
.SHORT TERM...WILL UPDATE ZONES AND STATE FORECAST BY 9:30 AM.
LOOKING AT LATEST MESOETA MODEL RUN AND LOOKS LIKE WINDS WILL BE
STRONGER IN NORTHWEST. TEMPERATURES MAY NOT BE AS WARM DUE TO
CLOUD COVER. EVEN AFTER UPPER TROF MOVES THROUGH AREA ENOUGH
MOISTURE TO HAVE CLOUDS. FORECAST GOOD IN TRENDS SO WILL JUST
FRESHEN SOME OF THE WORDING. CAMP
EXTENDED...NO CHANGES TO WORDING. HOWEVER...NEW MRF HAS MORE OF
A ZONAL FLOW EARLY IN THE PERIOD...BECOMING MORE SOUTHWEST
BY INDEPENDENCE DAY AND FRIDAY. NEW MRF WANT TO KEEP PACIFIC LOW
FURTHER NORTH THAN 24 HOURS AGO...BUT THAN DRIVE IT SOUTH
TO B.C BY LATE IN PERIOD...THIS IS IN CLOSE AGREEMENT FROM THE
PREVIOUS MRF. IN SHORT TEMPERATURES WILL BE CLOSE TO NORMAL WITH
A CHANCE OF MAINLY PM SHOWERS AND THUNDERSTORMS. WILLIAMSON DC
.CCF NUMBERS
GTF NU 078/048 082/050 080 08400
BBBBB 048/078 048/082 048/080 048/080 048 10011222333
CTB NU 073/046 075/046 076 08400
BBBBB 045/077 046/078 048/078 048/078 048 00011222333
HLN BU 080/051 082/052 082 08400
BBBBB 050/080 050/082 050/082 050/082 050 00011333333
BZN BU 078/045 081/046 082 08410
BBBBB 045/077 049/080 049/080 049/081 049 00011333333
WEY BU 072/040 072/040 070 08310
BBBBB 042/076 045/075 045/075 045/075 045 00011333333
DLN BU 077/045 080/046 081 08300
BBBBB 046/078 048/080 050/082 050/082 050 00011333333
HVR NU 080/052 082/052 082 08500
BBBBB 050/078 050/082 050/084 050/085 050 10011222333
LWT NU 077/046 080/048 081 08510
BBBBB 047/079 050/080 050/080 050/080 050 00011333333=
.TFX...FLOOD WARNING CONTINUES FOR GLACIER COUNTY (ZONES 9 AND 10).SHOULD USE THE PRODUCT LSRTFX
1 high wind. Local standard time, as filed.
A cold front moved through the Helena Valley during the late morning hours on the 29th. The winds were gusting to near 50 mph at the time of frontal passage. These gusty winds created waves up to 5 feet on Canyon Ferry Lake, where 14 boats capsized.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2002Every state in 2002This day in weather historyWarnings in Montana, June 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: 5300558.