Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 52, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 3, 2012, 1:47 PM MST for Cochise County, Arizona. It was in force for 118 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 3, 2012, 1:47 PM MST (20:47 UTC)
- Expired
- Sep 3, 2012, 3:45 PM MST
- In force
- 118 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 121 km from the middle of the area, began a volume at 20:48 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, 8.8 hours before the alert went out and 150 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
- 65 J/kg
- Mixed-layer CIN
- -358 J/kg
- Mixed-layer LCL
- 2003 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- -41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
402 WGUS55 KTWC 032047 FFWTWC AZC003-032245- /O.NEW.KTWC.FF.W.0052.120903T2047Z-120903T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 147 PM MST MON SEP 3 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL COCHISE COUNTY IN SOUTHEAST ARIZONA... * UNTIL 345 PM MST * AT 139 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE CHIRICAHUA MOUNTAINS. RADAR ESTIMATED RAINFALL OF ONE TO TWO INCHES HAS OCCURRED IN THE MOUNTAINS UPSTREAM FROM RUCKER CANYON. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL AND PARADISE PRECAUTIONARY/PREPAREDNESS ACTIONS... A SHORT PERIOD OF MODERATE RAINFALL ON A BURNED WATERSHED CAN LEAD TO FLASH FLOODS. SEEK HIGHER GROUND IMMEDIATELY...BUT IF IT IS UNSAFE TO EVACUATE DUE TO FLASH FLOODING...HEAVY RAIN...OR POOR VISIBILITY THE BEST ACTION MAY BE TO SHELTER IN PLACE IN A STURDY STRUCTURE. THE FORCE OF RUSHING WATER AND DEBRIS CAN DAMAGE OR DESTROY CULVERTS... BRIDGES...ROADWAYS...AND BUILDINGS. REMEMBER NEVER TO DRIVE THROUGH RAPIDLY FLOWING WATER...YOU MAY BE SWEPT AWAY. && LAT...LON 3195 10952 3205 10913 3170 10909 3163 10951 $$ GL
2 follow-up statements
596 WGUS75 KTWC 032137 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 237 PM MST MON SEP 3 2012 AZC003-032245- /O.CON.KTWC.FF.W.0052.000000T0000Z-120903T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 237 PM MST MON SEP 3 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MST FOR EAST CENTRAL COCHISE COUNTY... AT 226 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE THUNDERSTORMS PRODUCING HEAVY RAINFALL OVER THE CHIRICAHUA MOUNTAINS ARE IN THE PROCESS OF WEAKENING. THERE WILL STILL BE LIGHT TO MODERATE RAINFALL OVER THE CHIRICAHUA MOUNTAINS FOR THE NEXT 30 MINUTES OR SO. RADAR ESTIMATES INDICATE ONE TO TWO INCHES OF RAINFALL HAS FALLEN IN THE MOUNTAINS UPSTREAM OF RUCKER CANYON AND THIS WATER WILL CONTINUE TO MOVE DOWNSTREAM INTO THE CANYON. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL AND PARADISE PRECAUTIONARY/PREPAREDNESS ACTIONS... A SHORT PERIOD OF MODERATE RAINFALL ON A BURNED WATERSHED CAN LEAD TO FLASH FLOODS. SEEK HIGHER GROUND IMMEDIATELY...BUT IF IT IS UNSAFE TO EVACUATE DUE TO FLASH FLOODING...HEAVY RAIN...OR POOR VISIBILITY THE BEST ACTION MAY BE TO SHELTER IN PLACE IN A STURDY STRUCTURE. THE FORCE OF RUSHING WATER AND DEBRIS CAN DAMAGE OR DESTROY CULVERTS... BRIDGES...ROADWAYS...AND BUILDINGS. REMEMBER NEVER TO DRIVE THROUGH RAPIDLY FLOWING WATER...YOU MAY BE SWEPT AWAY. && LAT...LON 3195 10952 3205 10913 3170 10909 3163 10951 $$ GL
474 WGUS75 KTWC 032240 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 340 PM MST MON SEP 3 2012 AZC003-032246- /O.EXP.KTWC.FF.W.0052.000000T0000Z-120903T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 340 PM MST MON SEP 3 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 PM MST FOR EAST CENTRAL COCHISE COUNTY... RAINFALL HAS ENDED OVER THE CHIRICAHUA MOUNTAINS IN THE LAST HOUR. AFTER ONE TO TWO INCHES OF RAINFALL EARLIER THIS AFTERNOON...FLOWS WILL CONTINUE THROUGH WASHES EXITING THE CHIRICAHUA MOUNTAINS...HOWEVER THE THREAT FOR FLASH FLOODING HAS SUBSIDED. THUS...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 3195 10952 3205 10913 3170 10909 3163 10951 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 5:02 PM MST | Flash Flood Warning | TWC | Pima | 118 min |
| Sep 2, 5:10 PM MST | Flash Flood Warning | TWC | Pima | 80 min |
| Sep 2, 5:25 PM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 100 min |
| Sep 2, 5:52 PM MST | Special Weather Statement | TWC | Pima | 38 min |
| Sep 2, 6:59 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 2 hr |
| Sep 2, 8:22 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 3 hr |
| Sep 2, 8:40 PM MST | Flash Flood Warning | TWC | Pima | 80 min |
| Sep 3, 3:03 PM MST | Special Weather Statement | TWC | Santa Cruz | 42 min |
| Sep 3, 3:25 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 2 hr |
| Sep 3, 3:35 PM MST | Special Weather Statement | TWC | Santa Cruz | 40 min |
| Sep 3, 3:57 PM MST | Areal Flood Advisory | TWC | Cochise | 93 min |
| Sep 3, 4:05 PM MST | Flash Flood Warning | TWC | Cochise | 115 min |
| Sep 3, 4:28 PM MST | Severe Thunderstorm Warning | TWC | Pima | 47 min |
| Sep 3, 4:46 PM MST | Flash Flood Warning | TWC | Pima | 119 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.