Alert archive / Arizona / Special Weather Statements in 2018
Special Weather Statement, NWS Phoenix, AZ
NWS Phoenix, AZ issued this special weather statement at Aug 7, 2018, 8:10 PM MST for Pinal County, Arizona. It was in force for 35 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 7, 2018, 8:10 PM MST (03:10 UTC)
- Expired
- Aug 7, 2018, 8:45 PM MST
- In force
- 35 min
- Issued by
- NWS Phoenix, AZ
County Pinal County, AZ
The radar
The Phoenix radar (KIWA), 31 km from the middle of the area, began a volume at 03:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 7, 8:15 PM MST | TSTM WND GST 40 | 5 Wnw Florence, AZ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phoenix, AZ (KPSR), launched 00:00Z, 3.2 hours before the alert went out and 62 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
- 902 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 2972 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
202 WWUS85 KPSR 080310 SPSPSR Special Weather Statement National Weather Service Phoenix AZ 810 PM MST TUE AUG 7 2018 AZZ553-555-080345- Northwest Pinal County AZ-Apache Junction/Gold Canyon AZ- 810 PM MST TUE AUG 7 2018 ...SIGNIFICANT WEATHER ADVISORY FOR PINAL COUNTY UNTIL 845 PM MST... At 810 PM MST, Doppler radar was tracking a strong thunderstorm over Florence, moving southwest at 10 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Florence, Coolidge, Blackwater, Magma, Randolph, Coolidge Airport, Valley Farms and Cactus Forest. This includes the following highways... AZ Route 87 between mile markers 127 and 138. AZ Route 79 between mile markers 129 and 143. LAT...LON 3311 11166 3318 11129 3309 11118 3286 11150 TIME...MOT...LOC 0310Z 052DEG 8KT 3304 11134 $$ JS
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:11 PM MST | Special Weather Statement | PSR | Gila | 34 min |
| Aug 7, 5:44 PM MST | Areal Flood Advisory | PSR | Gila | 3 hr |
| Aug 7, 5:47 PM MST | Special Weather Statement | PSR | Gila | 43 min |
| Aug 7, 5:55 PM MST | Special Weather Statement | PSR | 35 min | |
| Aug 7, 6:08 PM MST | Flash Flood Warning | PSR | Gila | 3 hr |
| Aug 7, 6:23 PM MST | Areal Flood Advisory | PSR | Gila | 3 hr |
| Aug 7, 6:41 PM MST | Special Weather Statement | PSR | 34 min | |
| Aug 7, 6:51 PM MST | Areal Flood Advisory | PSR | Gila | 3 hr |
| Aug 7, 7:18 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 57 min |
| Aug 7, 8:48 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 42 min |
| Aug 7, 9:09 PM MST | Special Weather Statement | PSR | 36 min | |
| Aug 7, 10:01 PM MST | Areal Flood Advisory | PSR | Maricopa, Pinal | 119 min |
| Aug 7, 10:06 PM MST | Special Weather Statement | PSR | 39 min | |
| Aug 7, 10:30 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 60 min |
| Aug 7, 11:13 PM MST | Special Weather Statement | PSR | Maricopa | 47 min |
| Aug 7, 11:36 PM MST | Special Weather Statement | PSR | 39 min | |
| Aug 8, 12:19 AM MST | Special Weather Statement | PSR | 41 min | |
| Aug 8, 12:54 AM MST | Special Weather Statement | PSR | Maricopa | 51 min |
| Aug 8, 4:58 PM MST | Special Weather Statement | PSR | Gila | 32 min |
Nearby
Special Weather Statements in Arizona, 2018Every special weather statement 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.