Arizona, 2019

Hail in Arizona, September 16, 2019

September 16, 2019 · NWS PSR · 1 event in 1 county or zone

Isolated late monsoon thunderstorms developed over portions of southern Gila County during the afternoon hours on September 16th. One of the thunderstorms produced some large hail that approached one inch in diameter.

Where it happened

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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 PSR wrote it up.

Isolated late monsoon thunderstorms developed over portions of southern Gila County during the afternoon hours on September 16th. One of the thunderstorms produced some large hail that approached one inch in diameter. The large hail reportedly fell about 8 miles to the southeast of Roosevelt. There were no reports of damage associated with the large hail.

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 Phoenix, AZ wrote its last area forecast discussion before the first event at Sep 16, 10:39 AM MST, 3 hours 26 minutes earlier.

Area forecast discussion, Sep 16, 10:39 AM MST, 3 hours 26 minutes before
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In the hours before

Special weather statement, Sep 16, 1:34 PM MST, 31 minutes before
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Special weather statement, Sep 16, 1:52 PM MST, 13 minutes before
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Special weather statement, Sep 16, 2:00 PM MST, 5 minutes before
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The radar

The Phoenix radar (KIWA), 70 km away, was scanning. The volume nearest the first event began at 21:06 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Gila

When
September 16, 2:05 PM MST
Where
Gila County, 3.1 mi SE of Roosevelt Grpvn Arpt
Measured
0.88 in hail
Reported by
Trained Spotter
Coordinates
33.600, -111.010

Isolated thunderstorms developed across portions of southern Gila County during the afternoon hours on September 16th. One of the stronger storms generated large hail that affected areas near and to the southeast of Lake Roosevelt. According to a trained weather spotter located 8 miles southeast of the town of Roosevelt, large hail fell with some stones nearly as large as a nickle. One stone was measured with a diameter of 0.88 inches. No damage occurred as a result of the large hail.

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

More

Every storm in Arizona in 2019Every state in 2019This day in weather historyWarnings in Arizona, September 2019

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 2026-09-30. Each event’s entry at NCEI: 849915.