Alert archive / Arizona / Blowing Dust Advisories in 2017
Blowing Dust Advisory 18, NWS Tucson, AZ
NWS Tucson, AZ issued this blowing dust advisory at Jul 9, 2017, 8:15 PM MST for Pima County, Pinal County, Arizona. It was in force for 105 min.
The area
The counties it named.
The facts
- Issued
- Jul 9, 2017, 8:15 PM MST (03:15 UTC)
- Expired
- Jul 9, 2017, 10:00 PM MST
- In force
- 105 min
- Issued by
- NWS Tucson, AZ
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 88 km from the middle of the area, began a volume at 03:16 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, 3.3 hours before the alert went out and 73 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
- 700 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 2649 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blowing dust advisory 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 blowing dust advisory went out at Jul 9, 3:04 PM MST, 5 hours 11 minutes earlier.
Area forecast discussion, Jul 9, 3:04 PM MST, 5 hours 11 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 304 PM MST Sun Jul 9 2017 .SYNOPSIS...A big jump in our moisture will bring some strong thunderstorms to the area this afternoon and evening. Otherwise, plenty of moisture for afternoon and evening thunderstorms with a favorable pattern for storm development most days this week. The increase in moisture and rain chances will also result in more seasonable temperature readings. && .DISCUSSION...Solid moisture with precipitable water up to the 1.3 to 1.45 inches range. Surface dew points holding well in the middle 50s to lower 60s this afternoon, which is up 10 to 20 degrees compared to this time yesterday. Thunderstorm coverage has increased and chances will remain elevated through the evening hours as we continue to monitor organized outflow from earlier activity. Otherwise, high pressure northeast and east of the area means we have a favorable pattern for an average early season thunderstorm forecast with a deeper fetch of moisture now available. A chance of afternoon and evening showers and thunderstorms that will favor higher terrain with day-to-day variations. Up periods possible Monday evening with strong outflow from northern Sonora, and Thursday with potential easterly wave crossing northern Mexico. && .AVIATION...Valid thru 11/00Z. SCT TSRA/SHRA area-wide into this evening under SCT-BKN clouds 8-12k ft AGL. MVFR conditions and gusts near 45 kts possible with the stronger TSRA. Otherwise, VFR conditions with SFC wind wly/nwly 8-13 kts, weakening overnight into Monday. A few SHRA may persist overnight with SCT SHRA/TSRA redeveloping Monday afternoon. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Scattered mainly afternoon and evening thunderstorms will prevail today through the upcoming week, with better chances in the mountains. Expect brief strong, gusty and erratic winds due to thunderstorm outflows. Otherwise, 20-foot winds will generally be terrain driven at less than 15 mph. Occasional gusts will occur during the afternoon hours due to daytime heating. High temperatures will be close to seasonal normals this week and increased moisture will help moderate relative humidity levels. && .TWC WATCHES/WARNINGS/ADVISORIES... Blowing Dust Advisory until 8 PM MST this evening for AZZ501-502- 504-505. && Meyer/French Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
In the hours before
Special weather statement, Jul 9, 3:41 PM MST, 4 hours 34 minutes before
Special Weather Statement
National Weather Service Tucson AZ
341 PM MST SUN JUL 9 2017
AZZ507>509-511-092315-
Upper Gila River and Aravaipa Valleys including Clifton/Safford-Upper
San Pedro River Valley including Sierra Vista/Benson-Eastern Cochise
County Below 5000 Feet including Douglas/Willcox-Galiuro and Pinaleno
Mountains including Mount Graham-
341 PM MST SUN JUL 9 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GRAHAM COUNTY UNTIL
415 PM MST...
At 340 PM MST, Doppler radar and web cams were tracking a group of
strong thunderstorms 25 miles east of San Manuel, or 31 miles
northwest of Willcox, moving west-southwest at 15 mph.
Winds in excess of 40 mph and blowing dust will be possible with
these storms.
Locations impacted include...
Fort Grant and Bonita.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Areas of blowing dust may briefly reduce visibilities to near or
below 1 mile. If you encounter localized dense blowing dust, do not
drive into it if at all possible.
&&
LAT...LON 3277 11019 3262 10993 3242 10972 3232 11009
3251 11032 3272 11041
TIME...MOT...LOC 2240Z 063DEG 15KT 3258 11021
CernigliaSpecial weather statement, Jul 9, 4:17 PM MST, 3 hours 58 minutes before
Special Weather Statement National Weather Service Tucson AZ 417 PM MST SUN JUL 9 2017 AZZ506-507-509-511-100000- Upper Gila River and Aravaipa Valleys including Clifton/Safford-Southeast Pinal County including Kearny/Mammoth/Oracle-Upper San Pedro River Valley including Sierra Vista/Benson-Galiuro and Pinaleno Mountains including Mount Graham- 417 PM MST SUN JUL 9 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN PINAL COUNTY UNTIL 500 PM MST... At 416 PM MST, Doppler radar was tracking a strong thunderstorm 7 miles east of Mammoth, or 25 miles southeast of Winkelman, moving northwest at 15 mph. Half inch hail and wind gusts of 50 mph and blowing dust will be possible with this storm. Locations impacted include... Mammoth, San Manuel, Oracle, Aravaipa Creek Preserve and Dudleyville. LAT...LON 3272 11039 3254 11050 3266 11089 3294 11071 TIME...MOT...LOC 2316Z 116DEG 14KT 3269 11053 Francis
Special weather statement, Jul 9, 4:30 PM MST, 3 hours 45 minutes before
Special Weather Statement National Weather Service Tucson AZ 430 PM MST SUN JUL 9 2017 AZZ502-515-100015- Tohono O'odham Nation including Sells-Baboquivari Mountains including Kitt Peak- 430 PM MST SUN JUL 9 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL PIMA COUNTY UNTIL 515 PM MST... At 430 PM MST, Doppler radar was tracking a strong thunderstorm 8 miles southeast of Sells, moving west at 15 mph. Winds in excess of 40 mph and blowing dust will be possible with this storm. Locations impacted include... Sells, Topawa, South Komelik, Cowlic, Little Tucson, Artesa, Fresnal Canyon and Vamori. PRECAUTIONARY/PREPAREDNESS ACTIONS... Areas of blowing dust may briefly reduce visibilities to near or below 1 mile. If you encounter localized dense blowing dust, do not drive into it if at all possible. && LAT...LON 3191 11165 3165 11167 3175 11207 3206 11193 TIME...MOT...LOC 2330Z 106DEG 14KT 3182 11179 Cerniglia
Special weather statement, Jul 9, 5:15 PM MST, 3 hours before
Special Weather Statement National Weather Service Tucson AZ 515 PM MST SUN JUL 9 2017 AZZ502-504-100100- Tohono O'odham Nation including Sells-Tucson Metro Area including Tucson/Green Valley/Marana/Vail- 515 PM MST SUN JUL 9 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL PIMA COUNTY UNTIL 600 PM MST... At 513 PM MST, Doppler radar was tracking a group of strong thunderstorms 12 miles north of Sells, moving northwest at 20 mph. Winds in excess of 40 mph and blowing dust will be possible around these storms with brief heavy rain directly under the storms. Locations impacted include... Sells, Santa Rosa, San Luis, Santa Rosa Ranch, Little Tucson, Pisinimo, Pisinemo, Ak Chin, Mountain Village, Covered Wells, Big Fields, Anegam, Artesa, Comobabi, Nolic, San Isidro and Sil Naggia. PRECAUTIONARY/PREPAREDNESS ACTIONS... Areas of blowing dust may briefly reduce visibilities to near or below 1 mile. If you encounter localized dense blowing dust, do not drive into it if at all possible. && LAT...LON 3214 11158 3183 11184 3203 11240 3253 11189 TIME...MOT...LOC 0013Z 122DEG 16KT 3210 11193 Cerniglia
Special weather statement, Jul 9, 7:03 PM MST, 1 hour 12 minutes before
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</html>Local storm report, Jul 9, 7:10 PM MST, 1 hour 5 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Jul 9, 5:15 PM MST | Special Weather Statement | TWC | Pima | 45 min |
| Jul 9, 5:32 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 43 min |
| Jul 9, 6:13 PM MST | Severe Thunderstorm Warning | TWC | Pima | 47 min |
| Jul 9, 7:03 PM MST | Special Weather Statement | TWC | 42 min | |
| Jul 9, 7:09 PM MST | Areal Flood Advisory | TWC | Graham | 3 hr |
| Jul 10, 12:29 PM MST | Special Weather Statement | TWC | Greenlee | 61 min |
| Jul 10, 12:56 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
| Jul 10, 1:33 PM MST | Flash Flood Warning | TWC | Graham | 117 min |
| Jul 10, 2:01 PM MST | Special Weather Statement | TWC | Graham | 59 min |
| Jul 10, 3:05 PM MST | Flash Flood Warning | TWC | Graham | 3 hr |
| Jul 10, 3:48 PM MST | Special Weather Statement | TWC | Cochise | 42 min |
| Jul 10, 3:57 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 2 hr |
| Jul 10, 4:07 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
Nearby
Blowing Dust Advisories in Arizona, 2017Every blowing dust advisory 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.