Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 23, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 22, 2017, 2:49 PM MST for Santa Cruz County, Arizona. It was in force for 116 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 22, 2017, 2:49 PM MST (21:49 UTC)
- Expired
- Jul 22, 2017, 4:45 PM MST
- In force
- 116 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 52 km from the middle of the area, began a volume at 21:49 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 (KDMA), launched 12:00Z, 9.8 hours before the alert went out and 82 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
- 928 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1320 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
364
WGUS55 KTWC 222149
FFWTWC
AZC023-222345-
/O.NEW.KTWC.FF.W.0023.170722T2149Z-170722T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
249 PM MST SAT JUL 22 2017
The National Weather Service in Tucson has issued a
* Flash Flood Warning for...
Southeastern Santa Cruz County in southeastern Arizona...
* Until 445 PM MST
* At 247 PM MST, Doppler radar indicated thunderstorms producing
very heavy rainfall from south of Patagonia and east of Nogales
through the Lochiel area. The thunderstorms have shown little
movement. Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Kino Springs, Patagonia Lake and Lochiel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3147 11089 3156 11084 3146 11057 3133 11056
3133 11086
$$
Zell2 follow-up statements
612
WGUS75 KTWC 222249
FFSTWC
Flash Flood Statement
National Weather Service Tucson AZ
349 PM MST SAT JUL 22 2017
AZC023-222345-
/O.CON.KTWC.FF.W.0023.000000T0000Z-170722T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Cruz-
349 PM MST SAT JUL 22 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM MST FOR
SOUTHEASTERN SANTA CRUZ COUNTY...
At 344 PM MST, Doppler radar indicated that the heavy rainfall had
diminished in intensity. Radar rainfall estimates indicate that
between 1.5 and 2.5 inches of rainfall had occurred in the warning
area south of Patagonia to near Lochiel which may lead to flash
flooding.
Normally dry washes and low water crossings may be inundated in the
following locations...
Kino Springs, Patagonia Lake and Lochiel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3147 11089 3156 11084 3146 11057 3133 11056
3133 11086
$$
Zell431
WGUS75 KTWC 222348
FFSTWC
Flash Flood Statement
National Weather Service Tucson AZ
448 PM MST SAT JUL 22 2017
AZC023-222355-
/O.EXP.KTWC.FF.W.0023.000000T0000Z-170722T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Cruz-
448 PM MST SAT JUL 22 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN SANTA CRUZ COUNTY HAS
EXPIRED...
The heavy rain has ended. Flash flooding is no longer expected to
pose a threat. However, small stream flooding will continue and this
area remains in a Flood Advisory until 6 pm MST this evening. Please
continue to heed any remaining road closures.
LAT...LON 3147 11089 3156 11084 3146 11057 3133 11056
3133 11086
$$
ZellThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 7:40 PM MST | Special Weather Statement | TWC | 35 min | |
| Jul 21, 8:15 PM MST | Special Weather Statement | TWC | 30 min | |
| Jul 21, 8:31 PM MST | Areal Flood Advisory | TWC | Pima | 119 min |
| Jul 22, 10:21 AM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 10 hr |
| Jul 22, 12:00 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
| Jul 22, 1:34 PM MST | Flash Flood Warning | TWC | Graham | 116 min |
| Jul 22, 2:01 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 119 min |
| Jul 22, 2:44 PM MST | Severe Thunderstorm Warning | TWC | Graham, Greenlee | 46 min |
| Jul 22, 3:21 PM MST | Areal Flood Advisory | TWC | Graham, Greenlee | 114 min |
| Jul 22, 3:49 PM MST | Special Weather Statement | TWC | Graham | 41 min |
| Jul 22, 4:02 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 118 min |
| Jul 22, 4:35 PM MST | Areal Flood Advisory | TWC | Cochise | 115 min |
| Jul 22, 4:53 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 37 min |
Nearby
Flash Flood Warnings in Arizona, 2017Every flash flood warning 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.