Alert archive / Arizona / Tornado Warnings in 2017
Tornado Warning 2, NWS Tucson, AZ
NWS Tucson, AZ issued this tornado warning at Jul 14, 2017, 7:01 PM MST for Pima County, Pinal County, Arizona. It was in force for 29 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 14, 2017, 7:01 PM MST (02:01 UTC)
- Expired
- Jul 14, 2017, 7:30 PM MST
- In force
- 29 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 90 km from the middle of the area, began a volume at 02:01 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 14, 4:35 PM MST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Tuscon, AZ (KDMA), launched 00:00Z, 2.0 hours before the alert went out and 56 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
- 557 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 2796 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
252
WFUS55 KTWC 150201
TORTWC
AZC019-021-150230-
/O.NEW.KTWC.TO.W.0002.170715T0201Z-170715T0230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tucson AZ
701 PM MST FRI JUL 14 2017
The National Weather Service in Tucson has issued a
* Tornado Warning for...
Northeastern Pima County in southeastern Arizona...
South central Pinal County in southeastern Arizona...
* Until 730 PM MST
* At 659 PM MST, a severe thunderstorm capable of producing a
tornado was along Interstate 10 near Red Rock, moving southwest
at 25 mph.
HAZARD...Tornado.
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...
Far northern Marana around 710 PM MST.
Other locations impacted by this tornadic thunderstorm include Red
Rock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 3261 11131 3258 11121 3246 11126 3247 11140
TIME...MOT...LOC 0159Z 026DEG 21KT 3252 11130
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$1 follow-up statement
671
WWUS55 KTWC 150226
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
726 PM MST FRI JUL 14 2017
AZC019-021-150236-
/O.EXP.KTWC.TO.W.0002.000000T0000Z-170715T0230Z/
Pima-Pinal-
726 PM MST FRI JUL 14 2017
...THE TORNADO WARNING FOR NORTHEASTERN PIMA AND SOUTH CENTRAL PINAL
COUNTIES WILL EXPIRE AT 730 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire. However gusty winds
are still possible with this thunderstorm.
A severe thunderstorm watch remains in effect until 1100 PM MST for
southeastern Arizona.
LAT...LON 3261 11131 3258 11121 3246 11126 3247 11140
TIME...MOT...LOC 0226Z 026DEG 21KT 3239 11138
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 5:35 PM MST | Special Weather Statement | TWC | Pinal | 40 min |
| Jul 14, 5:36 PM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 4 hr |
| Jul 14, 6:11 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 49 min |
| Jul 14, 6:20 PM MST | Dust Storm Warning | TWC | Pinal | 90 min |
| Jul 14, 6:32 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 43 min |
| Jul 14, 6:36 PM MST | Tornado Warning | TWC | Pinal | 24 min |
| Jul 14, 6:50 PM MST | Special Weather Statement | TWC | Pima | 25 min |
| Jul 14, 6:58 PM MST | Special Weather Statement | TWC | 47 min | |
| Jul 14, 7:33 PM MST | Special Weather Statement | TWC | Santa Cruz | 57 min |
| Jul 15, 3:19 PM MST | Special Weather Statement | TWC | Santa Cruz | 41 min |
| Jul 15, 3:29 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 27 min |
| Jul 15, 3:41 PM MST | Special Weather Statement | TWC | Pinal | 64 min |
| Jul 15, 3:59 PM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 6 hr |
| Jul 15, 4:03 PM MST | Special Weather Statement | TWC | Pima | 42 min |
| Jul 15, 4:37 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 38 min |
| Jul 15, 4:43 PM MST | Special Weather Statement | TWC | Pinal | 47 min |
| Jul 15, 4:52 PM MST | Special Weather Statement | TWC | Pinal | 38 min |
Nearby
Tornado Warnings in Arizona, 2017Every tornado warning in 2017Tornadoes in 2017
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.