Alert archive / Arizona / Flash Flood Warnings in 2021
Flash Flood Warning 87, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 22, 2021, 10:06 PM MST for Apache County, Gila County, Navajo County, Arizona. It was in force for 4 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 22, 2021, 10:06 PM MST (05:06 UTC)
- Expired
- Jul 23, 2021, 2:28 AM MST
- In force
- 4 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Apache County, AZ, Gila County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 108 km from the middle of the area, began a volume at 05:08 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 12:25 AM MST | FLASH FLOOD | 8 Ene Show Low, AZ | US 60 WAS CLOSED BETWEEN MP348 AND VERNON DUE TO FLASH FLOODS IMPACTING THE ROADWAY. UNKNOWN WATER DEPTH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 5.1 hours before the alert went out and 191 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
- 1033 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
924
WGUS55 KFGZ 230506
FFWFGZ
AZC001-007-017-230815-
/O.NEW.KFGZ.FF.W.0087.210723T0506Z-210723T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
1006 PM MST Thu Jul 22 2021
The National Weather Service in Flagstaff has issued a
* Flash Flood Warning for...
Gila County in east central Arizona...
Navajo County in north central Arizona...
Apache County in northeastern Arizona...
* Until 115 AM MST.
* At 1005 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across the general area from Pinedale eastward to Show
Low and Vernon. Between 0.75 and 1.75 inches of rain have fallen.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Thunderstorms producing flash flooding.
SOURCE...Radar.
IMPACT...Flash flooding of low-water crossings, creeks,
normally dry washes and roads.
* Some locations that will experience flash flooding include...
Show Low, Pinetop-lakeside, Wagon Wheel, Lake Of The
Woods--Pinetop-lakeside, Hondah, Linden, Shumway, North Fork,
Pinedale, Fort Apache Reservation, Clay Springs, Vernon, Lakeside
Campground, Scott Reservoir Campground, Fool Hollow Lake
Campground, Pinetop Country Club, White Mountain Lake, Mcnary,
Brown Creek Campground and Lewis Canyon Group Campground.
This includes the following highways...
State Route 473 between mile markers 0 and 10.
State Route 77 between mile markers 343 and 355.
State Route 73 between mile markers 349 and 357.
State Route 61 between mile markers 353 and 357.
State Route 260 between mile markers 319 and 369.
Highway 60 between mile markers 326 and 362.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3416 11029 3433 11048 3443 11020 3443 11018
3443 10997 3425 10964 3392 10976 3399 11005
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
McCollum3 follow-up statements
866
WGUS75 KFGZ 230724
FFSFGZ
Flash Flood Statement
National Weather Service Flagstaff AZ
1224 AM MST Fri Jul 23 2021
AZC001-007-017-230815-
/O.CON.KFGZ.FF.W.0087.000000T0000Z-210723T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Apache AZ-Gila AZ-Navajo AZ-
1224 AM MST Fri Jul 23 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM MST EARLY THIS
MORNING FOR GILA, NAVAJO AND APACHE COUNTIES...
At 1221 AM MST, local law enforcement reported flooding that has
closed US highway 60 between mile marker 348 and Vernon.
HAZARD...Life-threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life-threatening flash flooding of low-water crossings,
creeks, normally dry washes and roads.
Some locations that will experience flash flooding include...
Show Low, Pinetop-lakeside, Wagon Wheel, Lake Of The
Woods--Pinetop-lakeside, Hondah, Linden, Shumway, North Fork,
Pinedale, Fort Apache Reservation, Clay Springs, Vernon, Lakeside
Campground, Scott Reservoir Campground, Fool Hollow Lake
Campground, Pinetop Country Club, White Mountain Lake, Mcnary,
Brown Creek Campground and Lewis Canyon Group Campground.
This includes the following highways...
State Route 473 between mile markers 0 and 10.
State Route 77 between mile markers 343 and 355.
State Route 73 between mile markers 349 and 357.
State Route 61 between mile markers 353 and 357.
State Route 260 between mile markers 319 and 369.
Highway 60 between mile markers 326 and 361.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3416 11029 3433 11048 3443 11020 3443 11018
3443 10997 3425 10964 3392 10976 3399 11005
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MCT452
WGUS55 KFGZ 230807
FFWFGZ
AZC001-007-017-230945-
/O.EXT.KFGZ.FF.W.0087.000000T0000Z-210723T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
107 AM MST Fri Jul 23 2021
The National Weather Service in Flagstaff has extended the
* Flash Flood Warning for...
Gila County in east central Arizona...
Navajo County in north central Arizona...
Apache County in northeastern Arizona...
* Until 245 AM MST.
* At 106 AM MST, local law enforcement reported flooding that has
closed US highway 60 around mile marker 348 to Vernon. Flash
flooding is already occurring.
HAZARD...Life-threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life-threatening flash flooding of low-water
crossings, creeks, normally dry washes and roads.
* Some locations that will experience flash flooding include...
Show Low, Pinetop-lakeside, Wagon Wheel, Lake Of The
Woods--Pinetop-lakeside, Hondah, Linden, Shumway, North Fork,
Pinedale, Fort Apache Reservation, Clay Springs, Vernon, Lakeside
Campground, Scott Reservoir Campground, Fool Hollow Lake
Campground, Pinetop Country Club, White Mountain Lake, Mcnary,
Brown Creek Campground and Lewis Canyon Group Campground.
This includes the following highways...
State Route 473 between mile markers 0 and 10.
State Route 77 between mile markers 343 and 355.
State Route 73 between mile markers 349 and 357.
State Route 61 between mile markers 353 and 357.
State Route 260 between mile markers 319 and 369.
Highway 60 between mile markers 326 and 361.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3416 11029 3433 11048 3443 11020 3443 11018
3443 10997 3425 10964 3392 10976 3399 11005
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MCT028
WGUS75 KFGZ 230928
FFSFGZ
Flash Flood Statement
National Weather Service Flagstaff AZ
228 AM MST Fri Jul 23 2021
AZC001-007-017-230938-
/O.CAN.KFGZ.FF.W.0087.000000T0000Z-210723T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Apache AZ-Gila AZ-Navajo AZ-
228 AM MST Fri Jul 23 2021
...FLASH FLOOD WARNING IS CANCELLED FOR GILA, NAVAJO AND APACHE
COUNTIES...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures and use
caution as washes, creeks and streams continue to run high tonight.
A Flash Flood Watch remains in effect until 1100 PM MST Saturday for
portions of east central Arizona, north central Arizona, northeast
Arizona and west central Arizona.
LAT...LON 3416 11029 3433 11048 3443 11020 3443 11018
3443 10997 3425 10964 3392 10976 3399 11005
$$
MCTThe 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 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, 12:19 PM MST | Flash Flood Warning | FGZ | Yavapai | 2 hr |
| 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.