Alert archive / Arizona / Special Weather Statements in 2017
Special Weather Statement, NWS Tucson, AZ
NWS Tucson, AZ issued this special weather statement at Aug 1, 2017, 3:18 PM MST for Graham County, Arizona. It was in force for 57 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 1, 2017, 3:18 PM MST (22:18 UTC)
- Expired
- Aug 1, 2017, 4:15 PM MST
- In force
- 57 min
- Issued by
- NWS Tucson, AZ
County Graham County, AZ
The radar
The Tucson radar (KEMX), 158 km from the middle of the area, began a volume at 22:18 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 12:00Z, 10.3 hours before the alert went out and 245 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
- 43 J/kg
- Mixed-layer CIN
- -329 J/kg
- Mixed-layer LCL
- 2281 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 1, 9:00 AM MST, 6 hours 18 minutes earlier.
Area forecast discussion, Aug 1, 9:00 AM MST, 6 hours 18 minutes before
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<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.
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<p id="message2">
Please try again in a few minutes.
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</html>In the hours before
Special weather statement, Aug 1, 3:18 PM MST, 0 minutes before
Special Weather Statement National Weather Service Tucson AZ 318 PM MST TUE AUG 1 2017 AZZ509-510-012315- Upper Gila River and Aravaipa Valleys including Clifton/Safford-White Mountains of Graham and Greenlee Counties including Hannagan Meadow- 318 PM MST TUE AUG 1 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GRAHAM AND SOUTHERN GREENLEE COUNTIES UNTIL 415 PM MST... At 317 PM MST, Doppler radar was tracking a strong thunderstorm 13 miles south of Clifton, or 24 miles east of Safford, moving northwest at 35 mph. Wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Safford, Clifton, Morenci, Thatcher, Pima, Solomon and Guthrie. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3278 10909 3258 10929 3293 11003 3334 10959 TIME...MOT...LOC 2217Z 138DEG 31KT 3283 10928 LEINS
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 7:09 PM MST | Special Weather Statement | TWC | 36 min | |
| Jul 31, 8:07 PM MST | Areal Flood Advisory | TWC | Pinal | 113 min |
| Jul 31, 9:05 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
Nearby
Special Weather Statements in Arizona, 2017Every special weather statement in 2017
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.