A thunderstorm over Show Low produced heavy rain and flash flooding around Show Low.
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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 episode as NWS FGZ wrote it up.
A thunderstorm over Show Low produced heavy rain and flash flooding around Show Low.
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 1, 3:07 PM MST, 53 minutes earlier.
Area Forecast Discussion National Weather Service Flagstaff AZ 307 PM MST Thu Aug 1 2019 .SYNOPSIS... Daily chances for afternoon and evening showers and thunderstorms are anticipated each day through the period. Storms will first form over higher terrain, then moving into the lower elevations in the late afternoon and early evening. && .DISCUSSION...Scattered showers and thunderstorms developed mainly over the higher terrain across northern Arizona today. This activity will diminish this evening. For Friday into the weekend, expect continued daily chances for afternoon scattered thunderstorms mainly along the high terrain. Sunday into the beginning of next week, a return to more widespread coverage of afternoon storms as models hint that an easterly wave may bring increasing return flow moisture in around the high. There is still the indication toward the middle to end of next week that a deepening trough will form off the Pacific Coast causing the high to shift eastward by next weekend bringing us a more southwesterly flow. Differences in the strength of this feature and the resulting position of the high give high uncertainty to the forecast middle to end of next week. && .AVIATION...For the 00Z package...Scattered SHRA/TSRA and ISOLD +TSRA...decreasing in coverage after 02Z. Most areas VFR, expect MVFR in stronger storms. Sfc winds light, except near thunderstorms and outflow boundaries. Storms will develop again after 17Z Friday. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Scattered afternoon and evening showers and thunderstorms will continue through Saturday. Wind will be generally light, expect in the vicinity of storms. .Sunday through Tuesday...Expect daily chances for afternoon and evening showers and thunderstorms. Generally light winds and seasonal temperatures. .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC...MAS AVIATION...MAS For Northern Arizona weather information visit weather.gov/flagstaff
Special Weather Statement National Weather Service Flagstaff AZ 142 PM MST Thu Aug 1 2019 AZZ014-012130- Little Colorado River Valley in Apache County- 142 PM MST Thu Aug 1 2019 ...SPECIAL WEATHER STATEMENT... At 142 PM MST, Doppler radar was tracking a strong thunderstorm 7 miles northeast of Vernon, or 24 miles northwest of Springerville, moving north at 10 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Little Ortega Lake. LAT...LON 3426 10959 3428 10970 3448 10970 3444 10944 TIME...MOT...LOC 2042Z 190DEG 11KT 3435 10963 RR
Special Weather Statement
National Weather Service Flagstaff AZ
311 PM MST Thu Aug 1 2019
AZZ015-012230-
Western Mogollon Rim-
311 PM MST Thu Aug 1 2019
...A STRONG THUNDERSTORM WILL AFFECT COCONINO COUNTY...
At 311 PM MST, a strong thunderstorm was located near Stoneman Lake,
or 11 miles east of Sedona. The storm is nearly stationary.
Winds in excess of 30 mph and pea size hail are possible with this
storm.
This storm will remain over mainly rural areas of Coconino County.
This includes Interstate 17 between mile markers 312 and 317.
LAT...LON 3480 11158 3481 11163 3488 11163 3487 11152
3480 11157
TIME...MOT...LOC 2211Z 290DEG 0KT 3481 11159
RRSpecial Weather Statement National Weather Service Flagstaff AZ 322 PM MST Thu Aug 1 2019 AZZ016-018-012300- Northern Gila County-Eastern Mogollon Rim- 322 PM MST Thu Aug 1 2019 ...SIGNIFICANT WEATHER ADVISORY FOR GILA AND COCONINO COUNTIES UNTIL 400 PM MST... At 319 PM MST, Doppler radar was tracking a strong thunderstorm over SR 260 just east of Kohls Ranch, or 13 miles west of Forest Lakes. This storm was nearly stationary. Penny size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Christopher Creek, Tonto Village, Kohls Ranch, Hunter Creek, Forest Road 195, Forest Road 9350. LAT...LON 3438 11115 3435 11096 3421 11096 3425 11119 TIME...MOT...LOC 2219Z 326DEG 3KT 3430 11103 RR
The Flagstaff radar (KFSX), 124 km away, was scanning. The volume nearest the first event began at 22:59 UTC.
1 flash flood. Local standard time, as filed.
Over 3.00 inches of rain from thunderstorms produced flash flooding that damaged some roads and buildings in and around Show Low.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2019Every state in 2019This day in weather historyWarnings in Arizona, August 2019
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: 848723.