Heavy Rain in Arizona, July 14, 2002

Name: Heavy Rain in Arizona, July 14, 2002
Start: 2002-07-14T19:20
End: 2002-07-14T19:20
Location: Arizona

July 14, 2002 · NWS FGZ · 1 event in 1 county or zone

Arizona Department of Transportation reported several vehicle accidents on I-17 between mileposts 267 and 268 from hydroplaning in heavy rain.

Where it happened

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.

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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 happened

The episode as NWS FGZ wrote it up.

Arizona Department of Transportation reported several vehicle accidents on I-17 between mileposts 267 and 268 from hydroplaning in heavy rain.

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 Flagstaff, AZ wrote its last area forecast discussion before the first event at Jul 14, 2:10 PM MST, 5 hours 10 minutes earlier.

Area forecast discussion, Jul 14, 2:10 PM MST, 5 hours 10 minutes before

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
210 PM MST SUN JUL 14 2002

.SYNOPSIS...HIGH PRESSURE WILL GRADUALLY WEAKEN OVER THE AREA
ALLOWING DAYTIME TEMPERATURES TO SETTLE BACK CLOSER TO NORMAL. THE
DAILY PATTERN OF AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE
WELL INTO THE COMING WEEK. THE MAJORITY OF SHOWER AND THUNDERSTORM
ACTIVITY WILL BE SOUTH AND WEST OF THE MOGOLLON RIM EARLY IN THE
WEEK...SPREADING NORTHWARD OVER MOST OF NORTHERN ARIZONA BY
WEDNESDAY.

.DISCUSSION...HIGH PRESSURE WILL WEAKEN OVER THE AREA...AS IT DOES A
PORTION OF THE HIGH WILL MOVE INTO THE CENTRAL PLAINS WITH ANOTHER
HIGH PRESSURE CIRCULATION OVER NORTHWEST PART OF THE STATE ON
MONDAY. NORTHERLY FLOW WILL KEEP NORTHERN PARTS OF THE STATE A
LITTLE DRIER MONDAY...AS THE HIGH SHIFTS EAST ACROSS THE STATE
DURING THE WEEK...INCREASES OF MOISTURE ON A SOUTHERLY FLOW WILL
BRING INCREASES OF SHOWERS AND THUNDERSTORMS FARTHER NORTH BY
MID-WEEK.

.EXTENDED...THERE IS EVIDENCE THAT AS A WEAK TROUGH IN THE WESTERLIES
APPROACHES...THAT DRIER AIR WILL MOVE INTO WESTERN SECTIONS OF THE
FORECAST AREA LATE IN THE EXTENDED. NOW TO PREDICT THE TIMING OF
THIS IS QUESTIONABLE AND THERE IS AMPLE MOISTURE OVER NORTHERN NEW
MEXICO THAT COULD GET PULLED NORTHWARD ON SOUTH TO SOUTHWEST
FLOW...SO WE WILL KEEP CHANCES OF SHOWERS IN THE EXTENDED FOR NOW.
TC
.FGZ...NONE.

.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA

CITY             TEMPERATURES LO/HI           PROBABILITY OF PRECIP
                 TON MON   TUE     WED        TON MON   TUE     WED
FLAGSTAFF        058/086 057/084 054/084      030 030 020 030 020 040
WINSLOW          068/097 067/095 066/095      030 020 000 020 000 030
PRESCOTT         065/093 065/092 066/092      020 030 020 030 020 040
PAGE             079/102 077/099 077/099      010 000 000 020 000 030
WINDOW ROCK      052/086 053/084 053/085      030 030 020 030 020 040
CANYON DE CHELLY 058/097 059/095 059/095      020 020 010 020 020 040
COTTONWOOD       070/103 070/101 071/101      020 020 020 020 020 030
GRAND CANYON     055/091 054/089 052/089      030 020 010 030 020 040
GREER            052/080 051/078 049/078      040 030 020 040 020 040
HEBER            057/089 056/087 053/087      040 030 020 030 020 040
JACOB LAKE       058/084 057/082 054/082      030 020 010 030 020 040
NAVAJO N.M.      064/091 065/089 065/089      030 020 010 020 020 030
PAYSON           066/093 066/092 065/092      020 020 020 030 020 040
SEDONA           070/100 070/100 069/099      020 020 020 020 020 040
SELIGMAN         060/096 060/095 061/095      020 020 010 020 010 030
SHOW LOW         061/092 060/090 057/090      040 030 020 030 020 040
ST. JOHNS        063/093 062/091 061/091      030 030 020 030 020 040
WUPATKI N.M.     076/100 075/098 074/098      030 020 010 020 020 030

In the hours before

Local storm report, Jul 14, 6:14 PM MST, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF ARIZONA
0614 PM MST SUN JUL 14 2002

TIME (MST) .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0125 PM    6 NE FLAGSTAFF            AZ   66 MPH TSTM GUST
07/14/02   COCONINO

0618 PM    CAMP VERDE                AZ   1.25 INCH HAIL
07/14/02   YAVAPAI

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 heavy rain. Local standard time, as filed.

Heavy Rain, Yavapai

When: July 14, 7:20 PM MST
Where: Yavapai County, Cordes
Reported by: OTHER FEDERAL AGENCY
Coordinates: 34.600, -112.554 (the zone’s center; the record gives no point)

What these are

Heavy Rain: Rainfall totals unusual for the place and season that did not produce a flood.

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

The same day elsewhere

Every storm in Arizona in 2002 Every state in 2002 This day in weather history Warnings in Arizona, July 2002

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: 5311282.