Alert archive / Arizona / Special Weather Statements in 2021
Special Weather Statement, NWS Phoenix, AZ
NWS Phoenix, AZ issued this special weather statement at Jul 19, 2021, 1:13 AM MST for Maricopa County, Arizona. It was in force for 32 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 19, 2021, 1:13 AM MST (08:13 UTC)
- Expired
- Jul 19, 2021, 1:45 AM MST
- In force
- 32 min
- Issued by
- NWS Phoenix, AZ
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 71 km from the middle of the area, began a volume at 08:13 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, 8.2 hours before the alert went out and 41 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
- 1031 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 2190 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
007 WWUS85 KPSR 190813 SPSPSR Special Weather Statement National Weather Service Phoenix AZ 113 AM MST Mon Jul 19 2021 AZZ537-538-540-544-190845- Buckeye/Avondale AZ-Tonopah Desert AZ-Northwest Valley AZ- North Phoenix/Glendale AZ- 113 AM MST Mon Jul 19 2021 ...SIGNIFICANT WEATHER ADVISORY FOR MARICOPA COUNTY UNTIL 145 AM MST... At 113 AM MST, Doppler radar was tracking a strong thunderstorm over Goodyear. This storm was nearly stationary. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Glendale, Surprise, Avondale, Goodyear, Buckeye, Tolleson, Cashion, Litchfield Park, Perryville, Luke AFB and Liberty. This includes the following highways... AZ Interstate 10 between mile markers 113 and 132. AZ Route 303 between mile markers 105 and 115. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3341 11226 3332 11246 3346 11268 3364 11239 TIME...MOT...LOC 0813Z 140DEG 2KT 3344 11244 $$ SDB
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 5:11 PM MST | Special Weather Statement | PSR | Gila | 34 min |
| Jul 18, 5:54 PM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Jul 18, 6:02 PM MST | Special Weather Statement | PSR | 28 min | |
| Jul 19, 12:41 AM MST | Special Weather Statement | PSR | Maricopa | 49 min |
| Jul 19, 12:29 PM MST | Special Weather Statement | PSR | 46 min | |
| Jul 19, 1:01 PM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Jul 19, 1:48 PM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Jul 19, 3:17 PM MST | Special Weather Statement | PSR | La Paz | 28 min |
| Jul 19, 3:33 PM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Jul 19, 3:38 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 3 hr |
Nearby
Special Weather Statements in Arizona, 2021Every special weather statement in 2021
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.