Alert archive / Arizona / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 134, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 9, 2022, 6:12 PM MST for Cochise County, Graham County, Arizona. It was in force for 48 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
- Aug 9, 2022, 6:12 PM MST (01:12 UTC)
- Expired
- Aug 9, 2022, 7:00 PM MST
- In force
- 48 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cochise County, AZ, Graham County, AZ
The radar
The Tucson radar (KEMX), 95 km from the middle of the area, began a volume at 01:11 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
Phoenix, AZ (KPSR), launched 00:00Z, 1.2 hours before the alert went out and 231 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
- 478 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 2293 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 48 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 Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 3:24 PM MST, 2 hours 48 minutes earlier.
Area forecast discussion, Aug 9, 3:24 PM MST, 2 hours 48 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 324 PM MST Tue Aug 9 2022 .SYNOPSIS...A favorable flow pattern for daily thunderstorms will persist through the week as the upper high remains centered near the Four Corners region. Daytime temperature will remain near seasonable readings. && .DISCUSSION...Convection is ongoing across SEAZ this afternoon with some flash flood concerns already. Activity for the next few hours may have peaked with more isolated showers/storms producing heavy rain on the edges of the early day activity. However there is still a weather disturbance that will move through southern AZ this evening into the overnight with addiotinal convection expected. Heavy rain and flash flooding remains the main risk, but a wet microburst or two cannot be ruled out. This active pattern will continue for the next several days with robust SE/E flow. Each 24hr period looks to have an IT/Vort rotating through, which will enhance the convection each afternoon/night. In this type of pattern, most nights will have convection going well into the overnight or all night. The ground remains saturated in many locales, so flash flooding will continue to be a threat possibly into the weekend. && .AVIATION...Valid through 11/00Z. BKN clouds at 7k-10k ft AGL with BKN-OVC above 15k ft AGL. CIGS may briefly lower to 3k-6k ft AGL with the TSRA/+TSRA, along with mountain obscurations and wind gusts to 40+ kts. Otherwise, SFC wind will generally be less than 12 kts, favoring a NWLY/NLY direction during the afternoon hours and variable in direction at other times. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...An active monsoon period is expected to continue through the week, with daily rounds of scattered showers and thunderstorms. The typical threats of strong gusty winds and heavy rainfall remain, as well as the potential for precipitation outside the normal afternoon/evening cycles. Flash flooding will also remain a concern each day this week. Wind trends are otherwise light following a diurnal pattern. && .TWC WATCHES/WARNINGS/ADVISORIES... Flood Watch through late tonight for AZZ501>515. && Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
In the hours before
Local storm report, Aug 9, 4:31 PM MST, 1 hour 41 minutes before
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</html>Local storm report, Aug 9, 4:47 PM MST, 1 hour 25 minutes before
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</html>Local storm report, Aug 9, 4:48 PM MST, 1 hour 24 minutes before
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</html>Special weather statement, Aug 9, 4:54 PM MST, 1 hour 18 minutes before
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</html>Special weather statement, Aug 9, 5:39 PM MST, 33 minutes before
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</html>Special weather statement, Aug 9, 6:00 PM MST, 12 minutes before
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</html>The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:27 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Aug 9, 5:39 PM MST | Special Weather Statement | TWC | Cochise | 51 min |
| Aug 9, 6:00 PM MST | Special Weather Statement | TWC | Cochise | 45 min |
| Aug 9, 6:54 PM MST | Special Weather Statement | TWC | Cochise | 51 min |
| Aug 9, 7:00 PM MST | Areal Flood Advisory | TWC | Cochise, Graham | 2 hr |
| Aug 9, 7:07 PM MST | Areal Flood Advisory | TWC | Cochise | 113 min |
| Aug 10, 1:15 AM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 10, 4:23 PM MST | Special Weather Statement | TWC | 52 min | |
| Aug 10, 4:33 PM MST | Special Weather Statement | TWC | Santa Cruz | 42 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.