Alert archive / Arizona / Flash Flood Warnings in 2022
Flash Flood Warning 247, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Aug 19, 2022, 8:46 PM MST for Yavapai County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2022, 8:46 PM MST (03:46 UTC)
- Expired
- Aug 19, 2022, 11:45 PM MST
- In force
- 3 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 03:45 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Aug 19, 2:27 PM MST, 6 hours 19 minutes earlier.
Area forecast discussion, Aug 19, 2:27 PM MST, 6 hours 19 minutes before
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Special weather statement, Aug 19, 4:04 PM MST, 4 hours 42 minutes before
Special Weather Statement
National Weather Service Flagstaff AZ
404 PM MST Fri Aug 19 2022
AZZ006-007-192315-
Coconino Plateau-Grand Canyon Country-
404 PM MST Fri Aug 19 2022
...A strong thunderstorm will impact portions of the Colorado River
West of Supai through 415 PM MST...
At 403 PM MST, Doppler radar was tracking a strong thunderstorm 8
miles east of Toroweap Campground, moving southeast at 15 mph.
HAZARD...Winds in excess of 30 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could blow around unsecured objects and make
boating difficult. Minor damage to outdoor objects is
possible.
Locations impacted include...
Colorado Rive West of Supai.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead
to localized flooding. Get to relatively higher ground if you are in
a canyon.
&&
LAT...LON 3624 11300 3623 11298 3624 11294 3626 11292
3625 11291 3626 11289 3628 11287 3628 11284
3629 11282 3625 11272 3608 11290 3619 11304
TIME...MOT...LOC 2303Z 300DEG 14KT 3623 11291
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
TMSpecial weather statement, Aug 19, 4:34 PM MST, 4 hours 12 minutes before
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Special Weather Statement
National Weather Service Flagstaff AZ
505 PM MST Fri Aug 19 2022
AZZ008-037-200030-
Yavapai County Valleys and Basins-Yavapai County Mountains-
505 PM MST Fri Aug 19 2022
...A strong thunderstorm will impact portions of southern Yavapai
County along I-40 through 530 PM MST...
At 503 PM MST, Doppler radar was tracking a several strong
thunderstorms near Bumble Bee, or 20 miles north of New River,
moving southeast at 10 to 15 mph.
HAZARD...Winds in excess of 30 mph, pea size hail, and heavy
rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Rock Springs, Bumble Bee and Black Canyon City.
This includes Interstate 17 between mile markers 242 and 258.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead
to localized flooding and reduced visibility. Do not drive your
vehicle through flooded roadways. Practice caution as heavy rain may
be displacing rocks onto the road.
&&
LAT...LON 3426 11222 3428 11200 3418 11186 3401 11177
3406 11228
TIME...MOT...LOC 0003Z 328DEG 13KT 3418 11206
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
JJMSpecial weather statement, Aug 19, 5:26 PM MST, 3 hours 20 minutes before
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Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 5:05 PM MST | Special Weather Statement | FGZ | 25 min | |
| Aug 19, 5:26 PM MST | Special Weather Statement | FGZ | Yavapai | 34 min |
| Aug 19, 5:31 PM MST | Special Weather Statement | FGZ | 14 min | |
| Aug 19, 5:44 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 34 min |
| Aug 19, 6:03 PM MST | Special Weather Statement | FGZ | Yavapai | 42 min |
| Aug 19, 6:40 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
| Aug 20, 2:57 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 20, 4:12 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 20, 4:28 PM MST | Special Weather Statement | FGZ | Yavapai | 32 min |
Nearby
Flash Flood Warnings in Arizona, 2022Every flash flood warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.