1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Salt Lake City, UT wrote its last area forecast discussion before the first event at Aug 3, 1:30 PM MST, 2 hours 12 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 230 PM MDT SAT AUG 3 2002 .SYNOPSIS...SOUTHWEST FLOW ALOFT WILL SPREAD A DRY AIR MASS OVER THE AREA TONIGHT AND SUNDAY. THE FLOW TURNS MORE SOUTHERLY MONDAY WHICH WILL BRING SOME MOISTURE BACK INTO EASTERN UTAH. .DISCUSSION...SCATTERED MOSTLY TERRAIN TRIGGERED CONVECTION THIS AFTERNOON WILL FOLLOW THE NORMAL DIURNAL WEAKENING THIS EVENING. STILL SOME QUESTION IF ANY OF NORTHWEST UT WILL BE ABLE TO TRIGGER TODAY BUT WILL WAIT UNTIL NEAR ISSUE TIME TO DECIDE WHERE AND HOW MUCH THREAT TO PUT IN THAT AREA. THE DRIER AIR THAT IS WORKING INTO WESTERN UT IS EXPECTED TO SPREAD ACROSS MOST OF THE REMAINDER FORECAST AREA FOR SUNDAY FOR A MOSTLY SUNNY DAY. THERE MAY STILL BE ENOUGH MOISTURE/INSTABILITY FOR SOME LIMITED ACTIVITY OVER THE MOUNTAINS OF SOUTHEAST ID BUT THATS ABOUT IT. ALSO EXPECT BREEZY CONDITIONS TOMORROW WHICH ALONG WITH LOWER HUMIDITIES WILL MAKE FIRE BEHAVIOR A LITTLE MORE AGGRESSIVE AGAIN. WE WILL ISSUE A RED FLAG WARNING FOR TOMORROW IN THE AFTERNOON FIRE WEATHER PACKAGE. OVERALL SYNOPTIC PATTERN FOR THE NEXT WEEK HAS THE LOW IN THE EASTERN GULF OF ALASKA DEEPEN AND SHARPEN SOUTHWARD. THIS CAUSED BY LOW NEAR THE ALEUTIANS MOVING EAST AND KICKING OUT A SERIES OF SHORTWAVES THAT FORCES THE RIDGE AXIS NOW NEAR 150W EAST AND THEN SUPPRESSES IT LATER IN THE WEEK. MEANWHILE A HIGH CENTER WANDERS AROUND THE MID PART OF THE COUNTRY. THE 12Z MODELS TURN THE FLOW OVER AZ MUCH MORE SOUTHERLY BY SUNDAY AFTERNOON THROUGH MIDDAY MONDAY WHICH BRINGS A SURGE OF MOISTURE NORTHWARD OVER EASTERN UT SUNDAY NIGHT AND MONDAY. PLENTY OF MOISTURE TO OUR SOUTH SO IF THE FLOW PATTERN IS CORRECT IT WONT TAKE LONG TO MOISTEN THE EAST AGAIN. WILL ADD A CHANCE OF THUNDERSTORMS TO THE MOUNTAINS SOUTH OF THE WY BORDER AND A SLIGHT CHANCE TO THE EASTERN VALLEYS. BY TUESDAY THE FLOW IS MORE SOUTHWEST AGAIN AND DRIER CONDITIONS FORECAST. THEN FROM WEDNESDAY ON THE FLOW OVER AZ GOES SOUTH TO SOUTHEAST FOR THE REMAINDER OF THE WEEK WHILE A SOUTHWEST FLOW CONTINUES OVER THE NORTHERN GREAT BASIN. MOISTURE SHOULD WORK SLOWLY BACK INTO THE SOUTHEAST PART OF THE AREA TO BRING A THREAT OF THUNDERSTORMS AGAIN BY THURSDAY AFTERNOON. THAT THREAT SPREADS SLOWLY NORTH AND WEST FOR FRIDAY AND SATURDAY. THE MORE WESTERLY COMPONENT OF THE FLOW OVER THE NORTHERN SECTIONS SHOULD KEEP IT DRY THERE. EXPECT THE BOUNDARY BETWEEN THE MOIST AND DRY AIR TO BE SOMEWHERE NEAR A LINE FROM THE UINTAS TO ELY. IT SHOULD ALSO GET WARMER OVER THE NORTH WITH 700MB TEMPERATURES FORECAST TO STEADILY RISE FROM WEDNESDAY THROUGH SATURDAY. SLC 2000 CDC -000 SANDERS .SLC...RED FLAG WARNING SUNDAY FOR ALL UTAH MTNS AND WRN VALLEYS.
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm produced a wind gust of 61 mph (53 kts) in Delta.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2002Every state in 2002This day in weather historyWarnings in Utah, 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: 5324691.