Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 43, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 10, 2021, 7:14 PM MST for Pima County, Arizona. It was in force for 61 min. 7 reports 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
- Jul 10, 2021, 7:14 PM MST (02:14 UTC)
- Expired
- Jul 10, 2021, 8:15 PM MST
- In force
- 61 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Pima County, AZ
The radar
The Tucson radar (KEMX), 56 km from the middle of the area, began a volume at 02:13 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 10, 7:23 PM MST | TSTM WND DMG | 3 Wnw Tucson, AZ | LARGE TREE DOWN. |
| Jul 10, 7:33 PM MST | TSTM WND GST 73 | 9 E Tucson, AZ | MESONET STATION CW6532 TUCSON FREEMAN/OLD SPANISH TRL. |
| Jul 10, 7:43 PM MST | TSTM WND GST 76 | 9 E Tucson, AZ | MESONET STATION CW6532 TUCSON FREEMAN/OLD SPANISH TRL. |
| Jul 10, 7:45 PM MST | TSTM WND DMG | 5 E Tucson, AZ | MULTIPLE PALO VERDE TREES DOWN NEAR S CAMINO SECO AND E BURNING TREE DR. CWOP SITE RECORDED A 53 MPH WIND GUST IN THE AREA. |
| Jul 10, 7:52 PM MST | TSTM WND DMG | 3 Ese Tucson, AZ | LARGE PALO VERDE TREE DOWN. |
| Jul 10, 7:53 PM MST | TSTM WND DMG | 2 E Tucson, AZ | LARGE PALO VERDE TREE DOWN BLOCKING 2 LANES. |
| Jul 10, 7:58 PM MST | TSTM WND GST 64 | 2 Se Tucson, AZ | ASOS STATION KDMA DAVIS MONTHAN AFB. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 4:52 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 2.2 hours before the alert went out and 17 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
- 1025 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 3304 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
671 WUUS55 KTWC 110214 SVRTWC AZC019-110315- /O.NEW.KTWC.SV.W.0043.210711T0214Z-210711T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Tucson AZ 714 PM MST Sat Jul 10 2021 The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Northeastern Pima County in southeastern Arizona... * Until 815 PM MST. * At 714 PM MST, a severe thunderstorm was located over Tucson, moving west at 10 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Tucson, Catalina, Oro Valley, Marana, Davis-Monthan Air Force Base, Casas Adobes, Drexel Heights, Flowing Wells, Tanque Verde, South Tucson, Avra Valley, Pascua Pueblo Yaqui Reservation, Tortolita, Mount Lemmon/Summerhaven, Sabino Canyon Recreation Area, Tucson Estates, Saguaro National Park West, Valencia West, Catalina State Park and Catalina Foothills. This includes the following highways... Interstate 10 between mile markers 233 and 277. Interstate 19 between mile markers 54 and 63. Route 77 between mile markers 70 and 86. Route 86 between mile markers 158 and 171. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3249 11068 3199 11076 3213 11122 3250 11136 TIME...MOT...LOC 0214Z 078DEG 6KT 3220 11087 HAIL...<.75IN WIND...60MPH $$ GL
1 follow-up statement
791 WWUS55 KTWC 110248 SVSTWC Severe Weather Statement National Weather Service Tucson AZ 748 PM MST Sat Jul 10 2021 AZC019-110315- /O.CON.KTWC.SV.W.0043.000000T0000Z-210711T0315Z/ Pima- 748 PM MST Sat Jul 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MST FOR NORTHEASTERN PIMA COUNTY... At 748 PM MST, a severe thunderstorm was located over South Tucson, or over Tucson, moving west at 10 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Tucson, Catalina, Oro Valley, Marana, Davis-Monthan Air Force Base, Casas Adobes, Drexel Heights, Flowing Wells, Tanque Verde, South Tucson, Avra Valley, Pascua Pueblo Yaqui Reservation, Tortolita, Mount Lemmon/Summerhaven, Sabino Canyon Recreation Area, Tucson Estates, Saguaro National Park West, Valencia West, Catalina State Park and Catalina Foothills. This includes the following highways... Interstate 10 between mile markers 233 and 277. Interstate 19 between mile markers 54 and 63. Route 77 between mile markers 70 and 86. Route 86 between mile markers 158 and 171. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3249 11068 3199 11076 3213 11122 3250 11136 TIME...MOT...LOC 0248Z 078DEG 6KT 3219 11094 HAIL...<.75IN WIND...60MPH $$ GL
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 5:10 PM MST | Flash Flood Warning | TWC | Cochise | 2 hr |
| Jul 10, 5:14 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 61 min |
| Jul 10, 5:15 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 45 min |
| Jul 10, 5:23 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 52 min |
| Jul 10, 5:30 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 60 min |
| Jul 10, 5:42 PM MST | Flash Flood Warning | TWC | Santa Cruz | 2 hr |
| Jul 10, 5:46 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima, Santa Cruz | 59 min |
| Jul 10, 6:05 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 40 min |
| Jul 10, 6:13 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 26 min |
| Jul 10, 6:22 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 53 min |
| Jul 10, 6:50 PM MST | Special Weather Statement | TWC | 25 min | |
| Jul 10, 6:57 PM MST | Dust Storm Warning | TWC | Pima, Santa Cruz | 63 min |
| Jul 10, 6:57 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 48 min |
| Jul 10, 7:06 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 39 min |
| Jul 10, 7:07 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 83 min |
| Jul 10, 7:29 PM MST | Flash Flood Warning | TWC | Cochise, Pima | 2 hr |
| Jul 10, 7:35 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 55 min |
| Jul 10, 8:00 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 86 min |
| Jul 10, 8:06 PM MST | Severe Thunderstorm Warning | TWC | Pima | 39 min |
| Jul 10, 8:12 PM MST | Severe Thunderstorm Warning | TWC | Pima | 48 min |
| Jul 10, 8:22 PM MST | Flash Flood Warning | TWC | Pima | 113 min |
| Jul 10, 8:29 PM MST | Severe Thunderstorm Warning | TWC | Pima | 61 min |
| Jul 10, 8:40 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 66 min |
| Jul 10, 8:41 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 10, 8:48 PM MST | Areal Flood Advisory | TWC | Pima | 117 min |
| Jul 10, 8:51 PM MST | Areal Flood Advisory | TWC | Pima | 114 min |
| Jul 10, 8:51 PM MST | Tornado Warning | TWC | Pima | 14 min |
| Jul 10, 9:45 PM MST | Special Weather Statement | TWC | 60 min | |
| Jul 10, 10:03 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Jul 10, 10:20 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 3 hr |
| Jul 10, 10:36 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 11, 4:12 PM MST | Special Weather Statement | TWC | Greenlee | 33 min |
| Jul 11, 4:44 PM MST | Special Weather Statement | TWC | Greenlee | 46 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.