Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 16, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 17, 2012, 2:05 PM MST for Cochise County, Santa Cruz County, Arizona. It was in force for 55 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 17, 2012, 2:05 PM MST (21:05 UTC)
- Expired
- Jul 17, 2012, 3:00 PM MST
- In force
- 55 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cochise County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 28 km from the middle of the area, began a volume at 21:08 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, 9.1 hours before the alert went out and 67 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
- 114 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1846 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
396 WGUS55 KTWC 172105 FFWTWC AZC003-023-172200- /O.NEW.KTWC.FF.W.0016.120717T2105Z-120717T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 205 PM MST TUE JUL 17 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN COCHISE COUNTY IN SOUTHEAST ARIZONA... NORTHEASTERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... * UNTIL 300 PM MST * AT 158 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED ESTIMATED RAINFALL RATES OF UP TO 2 INCHES PER HOUR ASSOCIATED WITH A THUNDERSTORM OVER THE WARNED AREA. GIVEN THE RAINFALL SEEN IN THE AREA OVER THE PAST TWO DAYS...THIS AMOUNT OF RAINFALL WILL LIKELY TRIGGER FLASH FLOODING OVER THE WARNED AREA. * THE STORM PRODUCING FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SANTA CRUZ AND COCHISE COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. && LAT...LON 3173 11062 3173 11045 3154 11037 3153 11060 $$ SMR
2 follow-up statements
216 WGUS75 KTWC 172131 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 231 PM MST TUE JUL 17 2012 AZC003-023-172200- /O.CON.KTWC.FF.W.0016.000000T0000Z-120717T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ-SANTA CRUZ AZ- 231 PM MST TUE JUL 17 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM MST FOR NORTHEASTERN SANTA CRUZ AND SOUTHWESTERN COCHISE COUNTIES... AT 222 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE AREAS OF ESTIMATED RAINFALL RATES OF UP TO 2 INCHES PER HOUR ASSOCIATED WITH A THUNDERSTORM OVER THE WARNED AREA. ALTHOUGH CURRENT RADAR TRENDS SHOW THE STORM BEGINNING TO DIMINISH...THE CONTINUED HEAVY RAINFALL OVER AN AREA THAT HAS SEEN SIGNIFICANT HEAVY RAINFALL OVER THE PAST TWO DAYS IS LIKELY TO TRIGGER FLASH FLOODING. THIS THUNDERSTORM WITH EXCESSIVE RAIN WILL REMAIN OVER MAINLY RURAL AREAS OF SANTA CRUZ COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3173 11062 3173 11045 3154 11037 3153 11060 $$ SMR
136 WGUS75 KTWC 172155 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 255 PM MST TUE JUL 17 2012 AZC003-023-172202- /O.EXP.KTWC.FF.W.0016.000000T0000Z-120717T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ-SANTA CRUZ AZ- 255 PM MST TUE JUL 17 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 300 PM MST FOR NORTHEASTERN SANTA CRUZ AND SOUTHWESTERN COCHISE COUNTIES... AT 252 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM RESPONSIBLE FOR THE HEAVY RAINFALL HAD DISSIPATED...THUS ENDING THE THREAT FOR FLASH FLOODING AT THIS TIME. HOWEVER...GIVEN THE RAIN THIS AREA HAS ALREADY RECEIVED...ANY ADDITIONAL RAINFALL MAY CREATE FLASH FLOODING WITH LITTLE OR NO WARNING. LAT...LON 3173 11062 3173 11045 3154 11037 3153 11060 $$ SMR
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 7:07 PM MST | Areal Flood Advisory | TWC | Cochise | 83 min |
| Jul 16, 7:19 PM MST | Flash Flood Warning | TWC | Cochise | 116 min |
| Jul 16, 7:54 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
| Jul 16, 8:09 PM MST | Flash Flood Warning | TWC | Pima | 111 min |
| Jul 16, 9:22 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Jul 17, 3:51 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
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.