Alert archive / Arizona / Special Weather Statements in 2021
Special Weather Statement, NWS Tucson, AZ
NWS Tucson, AZ issued this special weather statement at Aug 2, 2021, 6:31 PM MST. It was in force for 59 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
- Aug 2, 2021, 6:31 PM MST (01:31 UTC)
- Expired
- Aug 2, 2021, 7:30 PM MST
- In force
- 59 min
- Issued by
- NWS Tucson, AZ
The radar
The Tucson radar (KEMX), 81 km from the middle of the area, began a volume at 01:32 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 (KTUS), launched 00:00Z, 1.5 hours before the alert went out and 52 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
- 1093 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2632 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
731 WWUS85 KTWC 030131 SPSTWC Special Weather Statement National Weather Service Tucson AZ 631 PM MST Mon Aug 2 2021 AZZ504-506-507-514-030230- Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven-Upper San Pedro River Valley including Sierra Vista/Benson-Southeast Pinal County including Kearny/Mammoth/Oracle-Tucson Metro Area including Tucson/Green Valley/Marana/Vail- 631 PM MST Mon Aug 2 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PIMA AND SOUTHEASTERN PINAL COUNTIES UNTIL 730 PM MST... At 630 PM MST, Doppler radar was tracking a strong thunderstorm near Oracle, moving south at 5 to 10 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Oracle, Mammoth, San Manuel, Campo Bonito and Biosphere 2. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heavy rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. 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 3271 11086 3274 11065 3243 11054 3250 11084 TIME...MOT...LOC 0130Z 352DEG 6KT 3266 11075 $$ Meyer
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 5:15 PM MST | Special Weather Statement | TWC | Santa Cruz | 30 min |
| Aug 2, 5:19 PM MST | Dust Storm Advisory | TWC | Cochise | 41 min |
| Aug 2, 5:33 PM MST | Special Weather Statement | TWC | 42 min | |
| Aug 2, 5:48 PM MST | Special Weather Statement | TWC | 42 min | |
| Aug 2, 5:51 PM MST | Areal Flood Advisory | TWC | Pima | 114 min |
| Aug 2, 5:58 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 2, 6:24 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 2, 6:26 PM MST | Areal Flood Advisory | TWC | Cochise, Santa Cruz | 2 hr |
| Aug 2, 6:37 PM MST | Severe Thunderstorm Warning | TWC | Pima | 38 min |
| Aug 2, 6:55 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 2, 7:06 PM MST | Areal Flood Advisory | TWC | Pinal | 114 min |
| Aug 2, 7:06 PM MST | Special Weather Statement | TWC | Cochise | 39 min |
| Aug 2, 7:15 PM MST | Special Weather Statement | TWC | Santa Cruz | 45 min |
| Aug 2, 7:25 PM MST | Special Weather Statement | TWC | 50 min | |
| Aug 2, 7:31 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Aug 2, 8:13 PM MST | Severe Thunderstorm Warning | TWC | Pima | 33 min |
| Aug 2, 8:14 PM MST | Flash Flood Warning | TWC | Pima | 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.