Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 67, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 24, 2021, 1:28 PM MST for Apache County, Arizona. It was in force for 32 min. 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 24, 2021, 1:28 PM MST (20:28 UTC)
- Expired
- Jul 24, 2021, 2:00 PM MST
- In force
- 32 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Apache County, AZ
The radar
The Flagstaff radar (KFSX), 213 km from the middle of the area, began a volume at 20:28 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
Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 8.5 hours before the alert went out and 238 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
- 118 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- -60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
466
WUUS55 KFGZ 242028
SVRFGZ
AZC001-242100-
/O.NEW.KFGZ.SV.W.0067.210724T2028Z-210724T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Flagstaff AZ
228 PM MDT Sat Jul 24 2021
The National Weather Service in Flagstaff has issued a
* Severe Thunderstorm Warning for...
Apache County in northeastern Arizona...
* Until 300 PM MDT.
* At 226 PM MDT, a severe thunderstorm was located near Manuelito, or
14 miles west of Gallup, moving west at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Oak Springs Valley, Indian Route 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3543 10927 3566 10917 3562 10904 3541 10905
TIME...MOT...LOC 2026Z 106DEG 16KT 3551 10899
HAIL...1.00IN
WIND...60MPH
$$
TPS2 follow-up statements
112
WWUS55 KFGZ 242046
SVSFGZ
Severe Weather Statement
National Weather Service Flagstaff AZ
246 PM MDT Sat Jul 24 2021
AZC001-242100-
/O.CON.KFGZ.SV.W.0067.000000T0000Z-210724T2100Z/
Apache-
246 PM MDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM MDT
FOR APACHE COUNTY...
At 245 PM MDT, a severe thunderstorm was located near Oak Springs
Valley, or 20 miles west of Gallup, moving west at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Oak Springs Valley and Indian Route 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3543 10927 3563 10918 3562 10908 3542 10908
TIME...MOT...LOC 2045Z 106DEG 16KT 3553 10909
HAIL...1.00IN
WIND...60MPH
$$
TPS222
WWUS55 KFGZ 242058
SVSFGZ
Severe Weather Statement
National Weather Service Flagstaff AZ
258 PM MDT Sat Jul 24 2021
AZC001-242107-
/O.EXP.KFGZ.SV.W.0067.000000T0000Z-210724T2100Z/
Apache-
258 PM MDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR APACHE COUNTY WILL EXPIRE AT
300 PM MDT...
The storm which prompted the warning near Oak Springs Valley has
moved out of the area. Therefore, the warning will be allowed to
expire. Another Severe Thunderstorm Warning has been issued for this
storm as it moves west. Quarter size hail, gusty winds and heavy
rain are still possible with this thunderstorm.
LAT...LON 3543 10927 3563 10918 3562 10908 3542 10908
TIME...MOT...LOC 2057Z 106DEG 16KT 3554 10914
$$
TPSThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 5:56 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 34 min |
| Jul 23, 6:00 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Jul 23, 11:13 PM MST | Areal Flood Advisory | FGZ | Apache, Coconino, Gila, Navajo | 5 hr |
| Jul 24, 7:22 AM MST | Areal Flood Advisory | FGZ | Apache, Coconino, Navajo | 16 hr |
| Jul 24, 1:56 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 34 min |
| Jul 24, 2:16 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 29 min |
| Jul 24, 2:43 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 32 min |
| Jul 24, 4:01 PM MST | Flash Flood Warning | FGZ | Yavapai | 119 min |
| Jul 24, 4:05 PM MST | Flash Flood Warning | FGZ | Apache | 3 hr |
| Jul 24, 4:18 PM MST | Flash Flood Warning | FGZ | Apache, Navajo | 3 hr |
| Jul 24, 4:20 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 25 min |
| Jul 24, 4:51 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 39 min |
| Jul 24, 4:58 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 32 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm 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.