Alert archive / Arizona / Flash Flood Warnings in 2021
Flash Flood Warning 91, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 23, 2021, 12:19 PM MST for Yavapai County, Arizona. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 23, 2021, 12:19 PM MST (19:19 UTC)
- Expired
- Jul 23, 2021, 2:30 PM MST
- In force
- 2 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Yavapai County, AZ
The radar
The Phoenix radar (KIWA), 87 km from the middle of the area, began a volume at 19:20 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.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 7.3 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 503 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 915 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
117
WGUS55 KFGZ 231919
FFWFGZ
AZC025-232130-
/O.NEW.KFGZ.FF.W.0091.210723T1919Z-210723T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
1219 PM MST Fri Jul 23 2021
The National Weather Service in Flagstaff has issued a
* Flash Flood Warning for...
Yavapai County in west central Arizona...
* Until 230 PM MST.
* At 1218 PM MST, Doppler radar indicated thunderstorms producing
heavy rain in rural southeast Yavapai County east of Black Canyon
City. This includes Lime Creek and New River. Between 1 and 2
inches of rain have fallen. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Life-threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life-threatening flash flooding of low-water
crossings, creeks, normally dry washes and roads.
* Some locations that will experience flash flooding include...
mainly rural areas of Yavapai County
This includes the following streams and drainages...
Lime Creek, Squaw Creek, Copper Creek, Tank Creek, Ash Spring
Creek, Mud Spring Creek, Middle Red Creek, East Branch Squaw
Creek, Little Squaw Creek, New River, Tangle Creek, Fork Squaw
Creek, Red Creek and Brushy Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3404 11205 3421 11199 3420 11177 3400 11176
3401 11179 3401 11181 3401 11184 3401 11185
3402 11186 3402 11187 3402 11189 3402 11193
3403 11195 3403 11196 3403 11199 3403 11200
3403 11202 3403 11203
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
JJ1 follow-up statement
817
WGUS75 KFGZ 232128
FFSFGZ
Flash Flood Statement
National Weather Service Flagstaff AZ
228 PM MST Fri Jul 23 2021
AZC025-232138-
/O.EXP.KFGZ.FF.W.0091.000000T0000Z-210723T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yavapai AZ-
228 PM MST Fri Jul 23 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 230 PM MST THIS AFTERNOON FOR
YAVAPAI COUNTY...
The heavy rain has ended over far southeast Yavapai County east of
Black Canyon City. Heavy storm runoff will continue into the late
afternoon, continue to heed any road closures and turn around if you
encounter water over the road.
A Flash Flood Watch remains in effect until 1200 AM MST Monday for
portions of east central Arizona, north central Arizona, northeast
Arizona and west central Arizona.
LAT...LON 3404 11205 3421 11199 3420 11177 3400 11176
3401 11179 3401 11181 3401 11184 3401 11185
3402 11186 3402 11187 3402 11189 3402 11193
3403 11195 3403 11196 3403 11199 3403 11200
3403 11202 3403 11203
$$
JJThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 7:01 PM MST | Areal Flood Warning | FGZ | Navajo | 5 min |
| Jul 22, 7:06 PM MST | Flash Flood Warning | FGZ | Navajo | 3 hr |
| Jul 22, 8:08 PM MST | Flash Flood Warning | FGZ | Apache, Navajo | 3 hr |
| Jul 22, 10:06 PM MST | Flash Flood Warning | FGZ | Apache, Gila, Navajo | 4 hr |
| Jul 23, 12:57 AM MST | Flash Flood Warning | FGZ | Gila | 4 hr |
| Jul 23, 1:50 AM MST | Areal Flood Advisory | FGZ | Coconino, Gila, Yavapai | 3 hr |
| Jul 23, 4:07 AM MST | Flash Flood Warning | FGZ | Yavapai | 4 hr |
| Jul 23, 11:21 AM MST | Areal Flood Warning | FGZ | Gila | 6 hr |
| Jul 23, 11:38 AM MST | Special Weather Statement | FGZ | Coconino | 37 min |
| Jul 23, 12:07 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 4 hr |
| Jul 23, 12:14 PM MST | Special Weather Statement | FGZ | Coconino | 46 min |
| Jul 23, 12:51 PM MST | Flash Flood Warning | FGZ | Coconino | 114 min |
| Jul 23, 1:17 PM MST | Special Weather Statement | FGZ | 43 min | |
| Jul 23, 1:31 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 34 min |
| Jul 23, 2:12 PM MST | Flash Flood Warning | FGZ | Yavapai | 2 hr |
| Jul 23, 2:24 PM MST | Special Weather Statement | FGZ | Yavapai | 36 min |
| Jul 23, 2:59 PM MST | Flash Flood Warning | FGZ | Coconino | 7 hr |
| Jul 23, 3:26 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 3 hr |
| Jul 23, 3:43 PM MST | Special Weather Statement | FGZ | Navajo | 47 min |
| Jul 23, 4:01 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
| Jul 23, 4:28 PM MST | Flash Flood Warning | FGZ | Navajo | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.