1 thunderstorm wind, as filed by the National Weather Service.
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 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 Flagstaff, AZ wrote its last area forecast discussion before the first event at May 18, 9:15 AM MST, 2 hours 22 minutes earlier.
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
915 AM MST SAT MAY 18 2002
.SYNOPSIS...HIGH PRESSURE WILL REMAIN OVER THE REGION INTO SUNDAY.
AS A RESULT...EXPECT WARM AFTERNOON TEMPERATURES. THERE WILL BE A
CHANCE OF AFTERNOON THUNDERSTORMS ALONG THE NEW MEXICO BORDER LATE
THIS AFTERNOON AND AGAIN SUNDAY AFTERNOON. LOCALLY BREEZY AFTERNOON
CONDITIONS WILL DEVELOP ON SUNDAY AS A PACIFIC STORM SYSTEM
APPROACHES ARIZONA. BY MONDAY AND TUESDAY...THIS STORM WILL BRING
WINDY CONDITIONS AND MUCH COOLER TEMPERATURES TO THE NORTHLAND.
.DISCUSSION...KSAD SHOWING A 47 DEGREE DEW POINT THIS MORNING.
MODELS ARE LAGGING IN DEPICTION OF MOISTURE OVER THE AREA. MOISTURE
AT THIS POINT OVER THE SOUTHEAST IS MOSTLY LIKELY FAIRLY SHALLOW.
HOWEVER GOES DPI SOUNDER SHOWING DEEPER MOISTURE NOT FAR AWAY OVER
SOUTHWEST NEW MEXICO. STREAM LINES IN THE LOWER LEVELS CONTINUE TO
MOVE DEEPER MOISTURE INTO EASTERN SECTIONS OF THE FORECAST
AREA...THINKING BY THIS AFTERNOON THAT ENOUGH MOISTURE WILL EXIST
FOR A SLIGHT CHANCE OF LATE AFTERNOON SHOWERS OR THUNDERSTORMS OVER
THE WHITES AND EARLY THIS EVENING FOR THE WHITES AND THE CHUSKA
MOUNTAINS. LAPSE RATES THIS AFTERNOON OVER EASTERN SECTIONS AROUND
8.5 TO 9.0 DEGREES C PER KM. ENOUGH MOISTURE WILL PUSH NORTHWEST IN
AZ ZONE 015 LATER THIS AFTERNOON FOR PARTLY CLOUDY CONDITIONS. WE
WILL ALSO INTRODUCE SOME PC SKIES OVER AZ ZONE 39 LATER THIS
AFTERNOON AS WELL. AS FOR THE REMAINDER OF THE FORECAST...IT IS
LOOKING GOOD FOR NOW. MAY HAVE TO INTRODUCE SOME POPS NORTHWEST LATE
MONDAY INTO TUESDAY...HOWEVER WE WILL LOOK CLOSER INTO THIS OVER THE
NEXT COUPLE OF HOURS BEFORE THE COORDINATION CALL.
.FGZ...SPS FOR WARM TEMPS THIS WEEKEND...TURNING WINDY AND MUCH
COOLER MONDAY AND TUESDAY.
.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA
CITY TEMPERATURES HI/LO PROBABILITY OF PRECIP
TDY TON SUN MON TDY TON SUN MON
FLAGSTAFF 076/036 074/038 067/036 000 000 010 010 000 000
WINSLOW 087/049 085/051 086/048 000 000 000 000 000 000
PRESCOTT 084/050 083/051 075/046 000 000 000 000 000 000
PAGE 090/062 089/061 083/057 000 000 000 000 000 000
WINDOW ROCK 080/038 078/040 072/039 000 020 020 020 000 000
CANYON DE CHELLY 086/046 084/048 078/047 000 000 010 010 000 000
COTTONWOOD 095/057 094/058 086/053 000 000 000 000 000 000
GRAND CANYON 080/038 078/040 071/038 000 000 000 000 000 000
GREER 076/035 074/037 067/035 020 020 020 020 000 000
HEBER 083/037 081/039 074/037 000 000 010 010 000 000
JACOB LAKE 073/039 071/041 064/039 000 000 000 000 000 000
NAVAJO N.M. 078/043 076/045 070/044 000 000 020 020 000 000
PAYSON 089/050 088/051 080/046 000 000 000 000 000 000
SEDONA 092/056 091/057 083/052 000 000 000 000 000 000
SELIGMAN 086/042 085/043 077/038 000 000 000 000 000 000
SHOW LOW 085/045 083/047 076/045 000 000 020 020 000 000
ST. JOHNS 084/046 082/048 083/045 000 000 000 000 000 000
WUPATKI N.M. 089/053 087/055 088/052 000 000 000 000 000 000AZZ004>018-037>040-182300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 700 AM MST SAT MAY 17 2002 ...ANOTHER STRONG SPRING STORM APPROACHING ARIZONA... A DEVELOPING SPRING STORM OVER THE EASTERN PACIFIC WILL BRING ANOTHER ROUND OF STRONG WINDS TO NORTHERN ARIZONA ON MONDAY AND TUESDAY. IN ADVANCE OF THIS SYSTEM...WARM AFTERNOONS WITH NEAR RECORD TEMPERATURES ARE EXPECTED THIS WEEKEND. AS THE SYSTEM APPROACHES NORTHERN ARIZONA IT WILL BECOME BREEZY ON SUNDAY AFTERNOON...AND WINDY ON MONDAY AND TUESDAY. MUCH COOLER WEATHER IS EXPECTED AS THE COLD FRONT MOVES ACROSS THE STATE ON MONDAY. TEMPERATURES BY TUESDAY WILL BE 15 TO 20 DEGREES COOLER THAN WEEKEND READINGS. MOISTURE REMAINS VERY LIMITED WITH THIS SYSTEM AND LITTLE OR NO PRECIPITATION IS EXPECTED. LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA SOURCE FOR LATER FORECASTS AND UPDATES FROM THE NATIONAL WEATHER SERVICE. DB
The Flagstaff radar (KFSX), 166 km away, was scanning. The volume nearest the first event began at 18:34 UTC.
1 thunderstorm wind. Local standard time, as filed.
A thunderstrom wind gust of 63 MPH was measured at the St Johns Airport at 11:37 AM.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2002Every state in 2002This day in weather historyWarnings in Arizona, May 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: 5298895.