Hail, Yavapai
- When
- August 21, 1:45 PM MST
- Where
- Yavapai County, Prescott
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 34.550, -112.467
3/4 inch diameter hail was reported 10 miles northeast of Prescott.
Hail in Arizona, August 21, 2003
1 hail, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. 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 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 Aug 21, 10:15 AM MST, 3 hours 30 minutes earlier.
Area forecast discussion, Aug 21, 10:15 AM MST, 3 hours 30 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1015 AM MST THU AUG 21 2003 .SYNOPSIS...TROPICAL MOISTURE WILL REMAIN ACROSS NORTHERN ARIZONA INTO EARLY NEXT WEEK. AS A RESULT...EXPECT SCATTERED SHOWERS AND THUNDERSTORMS EACH DAY. .DISCUSSION...HIGH PRESSURE REMAINS OVER THE CENTRAL ROCKY MTNS WITH A RIDGE AXIS EXTENDING SWWD ACROSS AZ. THIS CIRC PATTERN WILL CONTINUE TO BRING A MOIST SUBTROPICAL FLOW NORTHWARD ACROSS THE STATE. A CLOSED LOW IS IN PLACE OVER THE EPAC CENTERED NEAR 33N 128W. TO THE EAST OF THIS SYSTEM A S/W TROUGH WAS EJECTING TO THE NE. THIS FEATURE CAN BE SEEN IN THE WV IMAGERY...AND WAS ALSO INITIALIZED WELL IN THE MODEL DATA. WV IMAGERY ALSO SHOWS THE LEADING EDGE OF DRIER AIR ALOFT ADVECTING ACROSS CA/AZ THIS MORNING. PW VALUES REMAIN VERY HIGH ACROSS THE STATE. FINALLY... MORNING RAOBS SHOW MODERATE WINDS ALOFT AND CURRENT WAVE CLOUD ACTIVITY OVER NRN AZ INDICATES THESE WINDS STILL PRESENT. THUS...SOME INGREDIENTS NOW IN PLACE FOR STRONGER AND ORGANIZED STORMS TO DEVELOP ACROSS THE WRN PORTIONS OF NRN AZ TODAY. WILL MAKE SOME ADJUSTMENTS TO POPS IN WRN ZONES...OTHERWISE ZFP IN GOOD SHAPE. DB .CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA FLAGSTAFF 079/052 079/052 077/051 040 030 050 040 050 020 WINSLOW 092/064 092/064 090/063 030 020 040 030 040 020 PRESCOTT 087/062 087/062 085/061 040 030 040 030 040 020 PAGE 094/070 094/070 092/069 020 020 030 020 030 020 WINDOW ROCK 086/050 086/050 084/049 040 020 040 030 040 020 CANYON DE CHELLY 092/063 092/063 090/062 030 020 040 030 040 020 COTTONWOOD 096/070 096/070 094/069 030 020 040 030 040 020 GRAND CANYON 082/052 082/052 080/051 030 020 040 030 040 020 GREER 074/046 074/046 072/045 050 030 060 050 060 030 HEBER 084/054 084/054 082/053 040 030 050 040 050 020 JACOB LAKE 077/052 077/052 075/051 030 030 040 030 040 020 NAVAJO N.M. 086/055 086/055 084/054 030 020 040 030 040 020 PAYSON 091/064 091/064 089/063 030 030 040 030 040 030 SEDONA 094/063 094/063 092/064 040 020 040 030 040 020 SELIGMAN 090/061 090/061 088/060 030 030 030 030 030 020 SHOW LOW 084/060 084/060 082/059 040 030 050 040 050 020 ST. JOHNS 091/059 091/059 089/058 040 030 040 030 040 020 WUPATKI N.M. 094/065 094/065 092/064 030 020 040 030 040 020
Hazardous weather outlook, Aug 21, 10:35 AM MST, 3 hours 10 minutes before
AZZ004>018-037>040-220200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 700 AM MST THU AUG 21 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY HIGH PRESSURE REMAINS OVER THE CENTRAL ROCKY MOUNTAINS PRODUCING A MOIST AND UNSTABLE SOUTHERLY FLOW OVER ARIZONA. A WEAK DISTURBANCE WILL MOVE ACROSS ARIZONA THIS AFTERNOON. THIS FEATURE SHOULD ENHANCE THUNDERSTORM POTENTIAL TODAY...ESPECIALLY IN WESTERN ARIZONA. SOME OF THESE STORMS WILL PRODUCE LOCALLY HEAVY RAIN...SMALL HAIL...AND STRONG GUSTY WINDS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A MOIST AND UNSTABLE AIR MASS WILL REMAIN OVER ARIZONA RESULTING IN A CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. DEFINITION OF HAZARDOUS WEATHER...A WEATHER EVENT POSING A THREAT TO LIFE AND PROPERTY.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 hail. Local standard time, as filed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Winds in Missouri, August 21, 2003
- Tornado and Hail in Michigan, August 21, 2003
- Hail and Damaging Winds in Ohio, August 21 to 22, 2003
- Hail and Damaging Winds in Kansas, August 21 to 22, 2003
- Damaging Winds in Minnesota, August 21, 2003
- Damaging Wind in Louisiana, August 21, 2003
- Tornado and Hail in Michigan, August 21, 2003
- Damaging Wind in Arkansas, August 21, 2003
- Heavy Rain in Puerto Rico, August 21, 2003
- Damaging Wind in Texas, August 21, 2003
- Damaging Wind in Michigan, August 21, 2003
- Marine Thunderstorm Winds in Lake Huron, August 21, 2003
More
Every storm in Arizona in 2003Every state in 2003This day in weather historyWarnings in Arizona, August 2003
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: 5374310.