Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 96, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Aug 10, 2021, 2:26 PM MST for Yavapai 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
- Aug 10, 2021, 2:26 PM MST (21:26 UTC)
- Expired
- Aug 10, 2021, 2:58 PM MST
- In force
- 32 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 79 km from the middle of the area, began a volume at 21:28 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.4 hours before the alert went out and 85 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
- 609 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 962 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
068
WUUS55 KFGZ 102126
SVRFGZ
AZC025-102215-
/O.NEW.KFGZ.SV.W.0096.210810T2126Z-210810T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Flagstaff AZ
226 PM MST Tue Aug 10 2021
The National Weather Service in Flagstaff has issued a
* Severe Thunderstorm Warning for...
Yavapai County in west central Arizona...
* Until 315 PM MST.
* At 226 PM MST, a severe thunderstorm was located near Cherry, or 10
miles west of Camp Verde, moving south at 10 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...
Cherry and Powell Springs Campground.
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 3455 11218 3462 11199 3442 11183 3434 11211
TIME...MOT...LOC 2126Z 337DEG 10KT 3452 11203
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Humphreys1 follow-up statement
163
WWUS55 KFGZ 102158
SVSFGZ
Severe Weather Statement
National Weather Service Flagstaff AZ
258 PM MST Tue Aug 10 2021
AZC025-102207-
/O.CAN.KFGZ.SV.W.0096.000000T0000Z-210810T2215Z/
Yavapai-
258 PM MST Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR CHERRY NEAR
YAVAPAI COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3455 11218 3462 11199 3442 11183 3434 11211
TIME...MOT...LOC 2155Z 337DEG 10KT 3444 11199
$$
HumphreysThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:19 PM MST | Special Weather Statement | FGZ | 41 min | |
| Aug 9, 6:17 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 9, 6:56 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 34 min |
| Aug 9, 7:27 PM MST | Special Weather Statement | FGZ | 33 min | |
| Aug 9, 7:50 PM MST | Special Weather Statement | FGZ | Gila | 25 min |
| Aug 9, 8:44 PM MST | Special Weather Statement | FGZ | Gila | 46 min |
| Aug 9, 9:18 PM MST | Areal Flood Advisory | FGZ | Gila, Navajo | 3 hr |
| Aug 9, 9:32 PM MST | Special Weather Statement | FGZ | Gila | 43 min |
| Aug 10, 11:35 AM MST | Special Weather Statement | FGZ | 25 min | |
| Aug 10, 11:55 AM MST | Severe Thunderstorm Warning | FGZ | Coconino | 15 min |
| Aug 10, 12:02 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 10, 12:14 PM MST | Special Weather Statement | FGZ | 31 min | |
| Aug 10, 12:46 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 10, 12:59 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 3 hr |
| Aug 10, 1:22 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 53 min |
| Aug 10, 2:22 PM MST | Special Weather Statement | FGZ | Yavapai | 23 min |
| Aug 10, 2:35 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 40 min |
| Aug 10, 2:43 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 10, 2:52 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Yavapai | 38 min |
| Aug 10, 3:11 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 3 hr |
| Aug 10, 3:46 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 10, 4:13 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
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.