Alert archive / Arizona / Dust Storm Warnings in 2018

Dust Storm Warning 5, NWS Tucson, AZ

July 8, 2018Pima County, Arizona

NWS Tucson, AZ issued this dust storm warning at Jul 8, 2018, 10:44 PM MST for Pima County, Arizona. It was in force for 61 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 8, 2018, 10:44 PM MST (05:44 UTC)
Expired: Jul 8, 2018, 11:45 PM MST
In force: 61 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon

County Pima County, AZ

The radar

The Tucson radar (KEMX), 112 km from the middle of the area, began a volume at 05:45 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

Tuscon, AZ (KDMA), launched 00:00Z, 5.7 hours before the alert went out and 84 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1468 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 3298 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this dust storm 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 dust storm warning went out at Jul 8, 9:44 PM MST, 1 hour earlier.

Area forecast discussion, Jul 8, 9:44 PM MST, 1 hour before

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In the hours before

Special weather statement, Jul 8, 6:18 PM MST, 4 hours 26 minutes before

Special Weather Statement
National Weather Service Tucson AZ
618 PM MST SUN JUL 8 2018

AZZ504-514-090200-
Santa Catalina and Rincon Mountains including Mount
Lemmon/Summerhaven-Tucson Metro Area including Tucson/Green
Valley/Marana/Vail-
618 PM MST SUN JUL 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PIMA COUNTY UNTIL
700 PM MST...

At 616 PM MST, Doppler radar was tracking a strong thunderstorm
between Casas Adobes and Oro Valley, moving southwest at 10 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Tucson, Oro Valley, Marana, Tortolita, Flowing Wells, Casas Adobes,
Catalina State Park, Catalina Foothills, Catalina and Picture Rocks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3234 11087 3246 11089 3243 11115 3226 11115
      3218 11102
TIME...MOT...LOC 0116Z 040DEG 11KT 3236 11098

Zell

Special weather statement, Jul 8, 7:43 PM MST, 3 hours 1 minute before

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Local storm report, Jul 8, 7:58 PM MST, 2 hours 46 minutes before

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Local storm report, Jul 8, 9:01 PM MST, 1 hour 43 minutes before

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The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 5:33 PM MST	Severe Thunderstorm Warning	TWC	Pima	42 min
Jul 8, 6:16 PM MST	Severe Thunderstorm Warning	TWC	Pima	59 min
Jul 8, 6:18 PM MST	Special Weather Statement	TWC		42 min
Jul 8, 6:30 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 8, 6:46 PM MST	Areal Flood Advisory	TWC	Pima	89 min
Jul 8, 7:13 PM MST	Severe Thunderstorm Warning	TWC	Pima	34 min
Jul 8, 7:32 PM MST	Flash Flood Warning	TWC	Pima	58 min
Jul 8, 7:43 PM MST	Special Weather Statement	TWC	Pima	62 min
Jul 8, 8:35 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Jul 8, 8:58 PM MST	Dust Storm Warning	TWC	Pinal	47 min
Jul 8, 9:20 PM MST	Dust Storm Warning	TWC	Pima	85 min
Jul 9, 12:51 PM MST	Special Weather Statement	TWC		39 min
Jul 9, 1:11 PM MST	Severe Thunderstorm Warning	TWC	Pinal	38 min
Jul 9, 1:17 PM MST	Special Weather Statement	TWC	Pima	43 min
Jul 9, 2:12 PM MST	Special Weather Statement	TWC	Pima	63 min
Jul 9, 2:17 PM MST	Severe Thunderstorm Warning	TWC	Pima	43 min
Jul 9, 2:22 PM MST	Severe Thunderstorm Warning	TWC	Pinal	39 min
Jul 9, 2:52 PM MST	Dust Storm Advisory	TWC	Pima	3 hr
Jul 9, 2:57 PM MST	Dust Storm Advisory	TWC	Pinal	63 min
Jul 9, 2:59 PM MST	Severe Thunderstorm Warning	TWC	Pima	14 min
Jul 9, 3:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Jul 9, 3:20 PM MST	Special Weather Statement	TWC		25 min
Jul 9, 3:54 PM MST	Special Weather Statement	TWC		51 min
Jul 9, 4:25 PM MST	Dust Storm Advisory	TWC	Pima, Pinal	50 min
Jul 9, 4:28 PM MST	Areal Flood Advisory	TWC	Pima	62 min
Jul 9, 4:49 PM MST	Severe Thunderstorm Warning	TWC	Pinal	41 min
Jul 9, 4:50 PM MST	Areal Flood Advisory	TWC	Pinal	55 min

Nearby

Dust Storm Warnings in Arizona, 2018 Every dust storm warning in 2018

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.