Heavy Rain, Coconino
- When
- July 19, 2:10 PM MST to 2:40 PM MST
- Where
- Coconino County, Grand Canyon Arpt
- Measured
- 0.94
- Reported by
- PARK/FOREST SERVICE
- Coordinates
- 35.839, -111.770 (the zone’s center; the record gives no point)
Heavy Rain in Arizona, July 19, 2002
94 inches of rain in just 30 minutes. The Phantom Ranch campground at the bottom of the Grand Canyon was evacuated.
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.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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.
The visitors center at the north rim of the Grand Canyon reported 0.94 inches of rain in just 30 minutes. The Phantom Ranch campground at the bottom of the Grand Canyon was evacuated. The Bright Angel and Kaibab Trails on the south side of the Colorado River sustained minor flood damage.
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 19, 9:15 AM MST, 4 hours 55 minutes earlier.
Area forecast discussion, Jul 19, 9:15 AM MST, 4 hours 55 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
915 AM MST FRI JUL 19 2002
.SYNOPSIS...A MOIST AIR MASS WILL REMAIN OVER NORTHERN ARIZONA INTO
NEXT WEEK. THE DAILY SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE
WITH TEMPERATURES NEAR SEASONAL LEVELS.
.DISCUSSION...WEAK TROUGH WAS LOCATED OVER CALIFORNIA THIS MORNING
WITH A NORTH/SOUTH RIDGE AXIS LOCATED ACROSS THE HIGH PLAINS. THIS
IS RESULTING IN A VERY WEAK FLOW REGIME. SLIGHT DRYING NOTED OVER
CWA ON 12Z FGZ SOUNDING...MAINLY ABOVE 450MB. VERY WEAK CAP NOTED
ALSO AT THIS LEVEL. SFC DPS DOWN 4-8 DEGREE THIS MORNING BUT STILL
IN THE 50S. SO PLENTY OF MOISTURE TO WORK WITH. THE DEEPEST MOISTURE
APPEARS TO BE OVER THE EASTERN CWA. EXPECT WIDESPREAD CONVECTION TO
DEVELOP ACROSS THE CWA AGAIN TODAY. FLOW ALOFT REMAINS WEAK SO STORMS
WILL BE UNORGANIZED AND SLOW MOVING. MAIN THREAT TODAY WILL BE
LOCALIZED HEAVY RAINFALL. SCATTERED POPS ACROSS THE REGION LOOK GOOD
AND ZONES HANDLE SITUATION WELL. NO UPDATE. DF
.FGZ...NONE
.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA
CITY TEMPERATURES HI/LO PROBABILITY OF PRECIP
TDY TON SAT SUN TDY TON SAT SUN
FLAGSTAFF 078/053 079/051 080/052 040 030 040 030 030 020
WINSLOW 089/063 090/060 091/060 030 020 030 020 020 020
PRESCOTT 088/062 089/059 090/060 030 020 030 020 020 020
PAGE 093/072 095/069 096/070 020 020 020 020 020 020
WINDOW ROCK 085/054 086/053 087/054 040 030 040 030 040 030
CANYON DE CHELLY 091/060 092/059 093/060 030 020 030 020 030 020
COTTONWOOD 099/070 100/067 101/068 020 020 020 020 020 020
GRAND CANYON 080/052 081/050 082/051 030 020 030 020 020 020
GREER 074/049 075/047 076/048 060 050 060 050 050 040
HEBER 083/054 084/052 085/053 060 040 060 040 040 030
JACOB LAKE 076/053 077/051 078/052 030 020 030 020 020 020
NAVAJO N.M. 085/058 086/057 087/058 030 020 030 020 030 020
PAYSON 093/063 094/060 095/061 030 020 030 020 020 020
SEDONA 097/068 098/065 099/066 020 020 020 020 020 020
SELIGMAN 091/055 092/052 093/053 020 010 020 010 010 010
SHOW LOW 084/061 085/059 086/060 040 030 040 030 030 020
ST. JOHNS 083/058 084/055 085/055 040 030 040 030 030 030
WUPATKI N.M. 091/066 092/063 093/063 030 020 030 020 020 020In the hours before
Special weather statement, Jul 19, 9:30 AM MST, 4 hours 40 minutes before
AZZ004>018-037>040-191930- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 930 AM MST FRI JUL 19 2002 ...WIDESPREAD SHOWERS AND THUNDERSTORMS TODAY ACROSS NORTHERN ARIZONA. STORMS WILL BE SLOW MOVING...INCREASING THE RISK OF URBAN AND SMALL STREAM FLOODING... DISCUSSION...THE ATMOSPHERE REMAINS VERY MOIST OVER NORTHERN ARIZONA. THE DEEPEST MOISTURE IS LOCATED OVER THE EASTERN SECTIONS. THE WIND FLOW ALOFT IS VERY LIGHT SO STORMS AGAIN TODAY WILL BE SLOW MOVING. THE MOST SIGNIFICANT STORMS ARE EXPECTED OVER THE WHITE MOUNTAINS AND ALONG THE NEW MEXICO BORDER. PRECIPITATION RATES WILL BE SIMILAR TO THOSE OF RECENT DAYS...BUT RAINFALL ACCUMULATION OVER A PARTICULAR LOCATION DUE TO THE SLOW STORM MOVEMENT WILL INCREASE THE RISK OF URBAN AND SMALL STREAM FLOODING. BURNED AREA RAIN OUTLOOK... SMALL AMOUNTS OF RAIN CAN CAUSE FLASH FLOODING IN BURNED OUT AREAS. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED IN AND AROUND THE RODEO-CHEDISKI AND INDIAN BURN AREAS TODAY. THE STORMS WILL BE SLOW MOVING IN NATURE WHICH WILL INCREASE THE RISK OF FLOODING. THE CHEDISKI-RODEO BURN AREA WILL EXPERIENCE THE GREATEST RISK DUE TO THE LIKELIHOOD OF STRONGER STORMS DEVELOPING OVER THAT AREA. DF
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 heavy rain. Local standard time, as filed.
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
- Flash Flooding in West Virginia, July 19, 2002
- Lightning Strike in Delaware, July 19, 2002
- Lightning Strike in New York, July 19, 2002
- Flash Flood in Indiana, July 19, 2002
- Hail and Damaging Wind in Massachusetts, July 19, 2002
- Flash Flooding and Damaging Wind in Ohio, July 19, 2002
- Hail and Damaging Winds in Ohio, July 19, 2002
- Damaging Winds in Georgia, July 19, 2002
- Lightning Strike in New Jersey, July 19, 2002
- Hail and Damaging Winds in Kansas, July 19, 2002
- Damaging Wind and Lightning Strike in Alabama, July 19, 2002
- Flooding and Damaging Winds in Ohio, July 19, 2002
More
Every storm in Arizona in 2002Every state in 2002This day in weather historyWarnings 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: 5311288.