Alert archive / Arizona / Tornado Warnings in 2019
Tornado Warning 3, NWS Tucson, AZ
NWS Tucson, AZ issued this tornado warning at Sep 26, 2019, 3:41 PM MST for Pima County, Arizona. It was in force for 21 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
- Sep 26, 2019, 3:41 PM MST (22:41 UTC)
- Expired
- Sep 26, 2019, 4:02 PM MST
- In force
- 21 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Pima County, AZ
The radar
The Tucson radar (KEMX), 76 km from the middle of the area, began a volume at 22:43 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 12:00Z, 10.7 hours before the alert went out and 37 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
- 337 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted.
391
WFUS55 KTWC 262241
TORTWC
AZC019-262315-
/O.NEW.KTWC.TO.W.0003.190926T2241Z-190926T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tucson AZ
341 PM MST Thu Sep 26 2019
The National Weather Service in Tucson has issued a
* Tornado Warning for...
North central Pima County in southeastern Arizona...
* Until 415 PM MST.
* At 340 PM MST, a severe thunderstorm capable of producing a tornado
was located near Marana, moving northeast at 30 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Marana around 355 PM MST.
Tortolita around 405 PM MST.
Oro Valley around 415 PM MST.
Other locations impacted by this tornadic thunderstorm include Dove
Mountain and Picture Rocks.
This includes Interstate 10 between mile markers 237 and 246.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3225 11126 3234 11139 3246 11126 3247 11095
TIME...MOT...LOC 2240Z 225DEG 24KT 3236 11123
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
Meyer2 follow-up statements
618
WWUS55 KTWC 262249
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
349 PM MST Thu Sep 26 2019
AZC019-262315-
/O.CON.KTWC.TO.W.0003.000000T0000Z-190926T2315Z/
Pima-
349 PM MST Thu Sep 26 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM MST FOR NORTH
CENTRAL PIMA COUNTY...
At 347 PM MST, a severe thunderstorm capable of producing a tornado
was located about 2 miles southwest of Marana, moving northeast at
25 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Radar indicated rotation, spotter seeing strong mid to lower
level rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Marana around 355 PM MST.
Tortolita around 405 PM MST.
Other locations impacted by this tornadic thunderstorm include Dove
Mountain and Picture Rocks.
This includes Interstate 10 between mile markers 237 and 246.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3225 11126 3234 11139 3246 11126 3247 11095
TIME...MOT...LOC 2247Z 223DEG 23KT 3238 11122
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
Meyer138
WWUS55 KTWC 262302
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
402 PM MST Thu Sep 26 2019
AZC019-262311-
/O.CAN.KTWC.TO.W.0003.000000T0000Z-190926T2315Z/
Pima-
402 PM MST Thu Sep 26 2019
...THE TORNADO WARNING FOR NORTH CENTRAL PIMA COUNTY IS CANCELLED...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, hail and damaging winds remain possible and a
Severe Thunderstorm Warning remains in effect for areas around
Picture Rocks and Marana until 4:15 PM MST.
LAT...LON 3225 11126 3234 11139 3246 11126 3247 11095
TIME...MOT...LOC 2254Z 225DEG 24KT 3245 11114
$$
MeyerThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 5:16 PM MST | Special Weather Statement | TWC | Pima | 59 min |
| Sep 25, 5:36 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 28 min |
| Sep 25, 5:58 PM MST | Special Weather Statement | TWC | Pinal | 47 min |
| Sep 26, 10:51 AM MST | Special Weather Statement | TWC | Pima | 39 min |
| Sep 26, 12:55 PM MST | Special Weather Statement | TWC | Pinal | 35 min |
| Sep 26, 3:23 PM MST | Special Weather Statement | TWC | 37 min | |
| Sep 26, 3:32 PM MST | Severe Thunderstorm Warning | TWC | Pima | 43 min |
Nearby
Tornado Warnings in Arizona, 2019Every tornado warning in 2019Tornadoes in 2019
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.