Alert archive / Arizona / Special Weather Statements in 2016

Special Weather Statement, NWS Tucson, AZ

July 30, 2016

NWS Tucson, AZ issued this special weather statement at Jul 30, 2016, 12:02 AM MST. It was in force for 28 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: Jul 30, 2016, 12:02 AM MST (07:02 UTC)
Expired: Jul 30, 2016, 12:30 AM MST
In force: 28 min
Issued by: NWS Tucson, AZ

The radar

The Yuma radar (KYUX), 173 km from the middle of the area, began a volume at 07:02 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, 7.0 hours before the alert went out and 174 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: 277 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 3318 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jul 29, 9:26 PM MST, 2 hours 36 minutes earlier.

Area forecast discussion, Jul 29, 9:26 PM MST, 2 hours 36 minutes before

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In the hours before

Special weather statement, Jul 29, 7:05 PM MST, 4 hours 57 minutes before

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Local storm report, Jul 29, 7:13 PM MST, 4 hours 49 minutes before

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Local storm report, Jul 29, 7:59 PM MST, 4 hours 3 minutes before

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Local storm report, Jul 29, 8:02 PM MST, 4 hours before

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Special weather statement, Jul 29, 8:19 PM MST, 3 hours 43 minutes before

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Special weather statement, Jul 30, 12:02 AM MST, 0 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 29, 5:07 PM MST	Severe Thunderstorm Warning	TWC	Pima	53 min
Jul 29, 5:16 PM MST	Severe Thunderstorm Warning	TWC	Pima	59 min
Jul 29, 5:22 PM MST	Special Weather Statement	TWC	Pima	53 min
Jul 29, 5:32 PM MST	Areal Flood Advisory	TWC	Pima, Pinal	118 min
Jul 29, 5:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	62 min
Jul 29, 5:59 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Jul 29, 6:01 PM MST	Severe Thunderstorm Warning	TWC	Pima	74 min
Jul 29, 6:07 PM MST	Flash Flood Warning	TWC	Pima	113 min
Jul 29, 6:13 PM MST	Special Weather Statement	TWC	Pinal	77 min
Jul 29, 6:35 PM MST	Dust Storm Warning	TWC	Pima, Pinal	4 hr
Jul 29, 7:05 PM MST	Special Weather Statement	TWC	Pima	70 min
Jul 29, 7:46 PM MST	Areal Flood Advisory	TWC	Pima, Pinal	119 min
Jul 29, 8:19 PM MST	Special Weather Statement	TWC	Pima	71 min
Jul 29, 10:15 PM MST	Severe Thunderstorm Warning	TWC	Pima	60 min
Jul 30, 3:10 PM MST	Special Weather Statement	TWC	Santa Cruz	35 min
Jul 30, 4:41 PM MST	Special Weather Statement	TWC	Santa Cruz	49 min
Jul 30, 4:54 PM MST	Special Weather Statement	TWC	Cochise	51 min
Jul 30, 4:56 PM MST	Areal Flood Advisory	TWC	Cochise	2 hr

Nearby

Special Weather Statements in Arizona, 2016 Every special weather statement in 2016

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.