Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 10, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 15, 2012, 4:15 PM MST for Pima County, Santa Cruz County, Arizona. It was in force for 2 hr. 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 15, 2012, 4:15 PM MST (23:15 UTC)
- Expired
- Jul 15, 2012, 6:15 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties Pima County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 25 km from the middle of the area, began a volume at 23:17 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, 11.3 hours before the alert went out and 26 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
- 509 J/kg
- Mixed-layer CIN
- -217 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
412 WGUS55 KTWC 152315 FFWTWC AZC019-023-160115- /O.NEW.KTWC.FF.W.0010.120715T2315Z-120716T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 415 PM MST SUN JUL 15 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... NORTH CENTRAL SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... * UNTIL 615 PM MST * AT 407 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. SPOTTERS ALSO REPORTED WATER BEGINNING TO FLOW ACROSS SAHUARITA ROAD IN SOME SPOTS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALL WASHES FLOWING NORTHWEST OUT OF THE SANTA RITA MOUNTAINS TOWARD THE SANTA CRUZ RIVER...INCLUDING THOSE THAT ACROSS SAHUARITA ROAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. && LAT...LON 3209 11094 3206 11077 3177 11074 3166 11105 $$ KD
2 follow-up statements
212 WGUS75 KTWC 160048 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 548 PM MST SUN JUL 15 2012 AZC019-023-160115- /O.CON.KTWC.FF.W.0010.000000T0000Z-120716T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SANTA CRUZ AZ-PIMA AZ- 548 PM MST SUN JUL 15 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM MST FOR EAST CENTRAL PIMA AND NORTH CENTRAL SANTA CRUZ COUNTIES... AT 541 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED AREA. ADDITIONAL STORMS PRODUCING HEAVY RAIN WILL BE MOVING INTO THE WARNED AREA EARLY THIS EVENING. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WASHES DRAINING NORTHWEST FROM THE SANTA RITA MOUNTAINS TO THE SANTA CRUZ RIVER. ANOTHER FLASH FLOOD WARNING REMAINS IN EFFECT FARTHER NORTH IN EASTERN PIMA COUNTY UNTIL 7 PM MST. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 3209 11094 3206 11077 3177 11074 3166 11105 $$ KD
333 WGUS75 KTWC 160121 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 621 PM MST SUN JUL 15 2012 AZC019-023-160129- /O.EXP.KTWC.FF.W.0010.000000T0000Z-120716T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SANTA CRUZ AZ-PIMA AZ- 621 PM MST SUN JUL 15 2012 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR EAST CENTRAL PIMA AND NORTH CENTRAL SANTA CRUZ COUNTIES... WHILE THE MOST INTENSE RAIN HAS ENDED IN THOSE AREAS...SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE WHICH WILL KEEP WASHES AND STREAMS FLOWING THIS EVENING. A SMALL STREAM FLOOD ADVISORY IS IN EFFECT FOR SOUTHEAST PIMA AND MUCH OF SANTA CRUZ COUNTIES UNTIL 915 PM MST. LAT...LON 3209 11094 3206 11077 3177 11074 3166 11105 $$ KD
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 1:35 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
| Jul 15, 2:25 PM MST | Special Weather Statement | TWC | 50 min | |
| Jul 15, 2:36 PM MST | Areal Flood Advisory | TWC | Pima | 114 min |
| Jul 15, 2:48 PM MST | Special Weather Statement | TWC | Santa Cruz | 27 min |
| Jul 15, 2:52 PM MST | Severe Thunderstorm Warning | TWC | Pima | 38 min |
| Jul 15, 3:19 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
| Jul 15, 3:32 PM MST | Special Weather Statement | TWC | 58 min | |
| Jul 15, 3:45 PM MST | Special Weather Statement | TWC | Cochise | 30 min |
| Jul 15, 4:05 PM MST | Areal Flood Advisory | TWC | Pinal | 115 min |
| Jul 15, 4:09 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
| Jul 15, 4:20 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
| Jul 15, 4:38 PM MST | Areal Flood Advisory | TWC | Graham | 3 hr |
| Jul 15, 4:54 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 66 min |
Nearby
Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012
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.