Alert archive / Arizona / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 12, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 5, 2022, 1:38 PM MST for Apache County, Navajo County, Arizona. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 5, 2022, 1:38 PM MST (20:38 UTC)
- Expired
- Jul 5, 2022, 2:30 PM MST
- In force
- 52 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Apache County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 149 km from the middle of the area, began a volume at 20:38 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, 8.6 hours before the alert went out and 173 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
- 8 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 3428 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 5, 9:13 AM MST, 4 hours 25 minutes earlier.
Area forecast discussion, Jul 5, 9:13 AM MST, 4 hours 25 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>In the hours before
Special weather statement, Jul 5, 11:17 AM MST, 2 hours 21 minutes before
Special Weather Statement
National Weather Service Flagstaff AZ
1217 PM MDT Tue Jul 5 2022
AZZ013-014-040-051900-
Little Colorado River Valley in Navajo County-
Little Colorado River Valley in Apache County-
Northeast Plateaus and Mesas South of Hwy 264-
1217 PM MDT Tue Jul 5 2022
...A strong thunderstorm will impact areas near and around I-40
between Winslow and Petrified Forest through 100 PM MDT/NOON MST/...
At 1215 PM MDT/1115 AM MST/, Doppler radar was tracking a strong
thunderstorm near Holbrook, or 36 miles east of Winslow, moving north
at 15 mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Hazardous driving along impacted roadways. Gusty winds
could knock down tree limbs and blow around unsecured
objects. Minor damage to outdoor objects is possible.
Locations impacted include...
Holbrook, Joseph City, Sun Valley, Woodruff, Petrified Forest
National Park, Petrified Forest N.P. Visitors Center and Petrified
Forest N.P. Headquarters.
This includes the following highways...
Business Interstate 40 between mile markers 275 and 289.
Interstate 40 between mile markers 264 and 317.
State Route 377 between mile markers 19 and 33.
State Route 87 between mile markers 356 and 365.
State Route 77 between mile markers 371 and 408.
Highway 180 between mile markers 308 and 341.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3458 10971 3474 11060 3523 11050 3506 10950
TIME...MOT...LOC 1815Z 197DEG 15KT 3490 11008
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
KoboldSpecial weather statement, Jul 5, 12:39 PM MST, 59 minutes before
Special Weather Statement
National Weather Service Flagstaff AZ
139 PM MDT Tue Jul 5 2022
AZZ040-052015-
Northeast Plateaus and Mesas South of Hwy 264-
139 PM MDT Tue Jul 5 2022
...A strong thunderstorm will impact portions of Navajo County
around White Cone through 215 PM MDT/115 PM MST/...
At 138 PM MDT/1238 PM MST/, Doppler radar was tracking a strong
thunderstorm near White Cone moving northeast at 5 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
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...
White Cone.
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. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3545 11014 3557 11025 3573 11006 3556 10992
TIME...MOT...LOC 1938Z 235DEG 6KT 3554 11012
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
KoboldSpecial weather statement, Jul 5, 12:58 PM MST, 40 minutes before
Special Weather Statement
National Weather Service Flagstaff AZ
1258 PM MST Tue Jul 5 2022
AZZ014-052030-
Little Colorado River Valley in Apache County-
1258 PM MST Tue Jul 5 2022
...A strong thunderstorm will impact portions of Apache County near
Concho through 130 PM MST...
At 1257 PM MST, Doppler radar was tracking a strong thunderstorm near
Concho, or 26 miles northeast of Show Low, moving north at 10 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
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...
Concho and Little Ortega Lake.
This includes the following highways...
Highway 180 between mile markers 355 and 358.
State Route 61 between mile markers 363 and 381.
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. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3433 10957 3438 10978 3462 10974 3454 10943
TIME...MOT...LOC 1957Z 197DEG 8KT 3443 10965
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
KoboldThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 11:17 AM MST | Special Weather Statement | FGZ | 43 min | |
| Jul 5, 12:39 PM MST | Special Weather Statement | FGZ | Navajo | 36 min |
| Jul 5, 12:58 PM MST | Special Weather Statement | FGZ | 32 min | |
| Jul 5, 1:10 PM MST | Areal Flood Advisory | FGZ | Coconino, Navajo | 3 hr |
| Jul 5, 3:33 PM MST | Flash Flood Warning | FGZ | Coconino | 5 hr |
| Jul 5, 4:24 PM MST | Areal Flood Advisory | FGZ | Coconino | 3 hr |
| Jul 5, 4:56 PM MST | Special Weather Statement | FGZ | 34 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2022Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.