Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 29, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 15, 2012, 8:05 PM MST for Santa Cruz County, Arizona. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 15, 2012, 8:05 PM MST (03:05 UTC)
- Expired
- Aug 15, 2012, 11:30 PM MST
- In force
- 3 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 56 km from the middle of the area, began a volume at 03:07 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 15, 9:23 PM MST | FLASH FLOOD | Nogales, AZ | SHERIFFS OFFICE IN NOGALES REPORTED THAT THEY ARE STILL DEALING WITH NUMEROUS FLOODING ISSUES IN THE NOGALES AND RIO RICO AREA FROM THE HEAVY RAINS THAT OCCURRED EARLIER THIS EVENING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KDMA), launched 00:00Z, 3.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2714 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
074 WGUS55 KTWC 160305 FFWTWC AZC023-160430- /O.NEW.KTWC.FF.W.0029.120816T0305Z-120816T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 805 PM MST WED AUG 15 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... THIS INCLUDES THE CITY OF NOGALES... * UNTIL 930 PM MST * AT 757 PM MST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. NATIONAL WEATHER SERVICE DOPPLER RADAR ALSO INDICATED ONGOING HEAVY RAINFALL OVER THE AREA WITH ESTIMATED RAINFALL OF UP TO 2 INCHES. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PATAGONIA LAKE...NOGALES AND RIO RICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. && LAT...LON 3151 11110 3150 11066 3133 11047 3132 11105 $$ SMR
3 follow-up statements
462 WGUS75 KTWC 160348 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 848 PM MST WED AUG 15 2012 AZC023-160430- /O.CON.KTWC.FF.W.0029.000000T0000Z-120816T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SANTA CRUZ AZ- 848 PM MST WED AUG 15 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM MST FOR SOUTHERN SANTA CRUZ COUNTY... AT 839 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED AREA. RADAR CONTINUED TO ESTIMATE RAINFALL AMOUNTS EXCEEDING AN INCH AND A HALF OVER THE WARNING AREA. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NOGALES... PATAGONIA LAKE AND RIO RICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 3151 11110 3150 11066 3133 11047 3132 11105 $$ SMR
341 WGUS55 KTWC 160421 FFWTWC AZC023-160630- /O.EXT.KTWC.FF.W.0029.000000T0000Z-120816T0630Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 921 PM MST WED AUG 15 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS EXTENDED THE * FLASH FLOOD WARNING FOR... SOUTHERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... THIS INCLUDES THE CITY OF NOGALES... * UNTIL 1130 PM MST * AT 912 PM MST...LOCAL LAW ENFORCEMENT OFFICIALS CONTINUED TO REPORT FLASH FLOODING FROM A THUNDERSTORM THAT HAD OCCURRED OVER THE WARNED AREA. ALTHOUGH THE THUNDERSTORM RESPONSIBLE FOR THE HEAVY RAIN HAS DIMINISHED...CONTINUED LIGHT RAINFALL OVER THE WARNING AREA WILL CONTINUE TO CONTRIBUTE TO FLASH FLOODING. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NOGALES... PATAGONIA LAKE AND RIO RICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 3151 11110 3150 11066 3133 11047 3132 11105 $$ SMR
158 WGUS75 KTWC 160621 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1121 PM MST WED AUG 15 2012 AZC023-160630- /O.EXP.KTWC.FF.W.0029.000000T0000Z-120816T0630Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SANTA CRUZ AZ- 1121 PM MST WED AUG 15 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM MST FOR SOUTHERN SANTA CRUZ COUNTY... RAINFALL HAS ENDED OVER THE WARNING AREA...THUS ENDING THE FLASH FLOOD THREAT. LAT...LON 3151 11110 3150 11066 3133 11047 3132 11105 $$ SMR
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 5:02 PM MST | Special Weather Statement | TWC | 43 min | |
| Aug 15, 5:47 PM MST | Special Weather Statement | TWC | Cochise | 43 min |
| Aug 15, 5:51 PM MST | Special Weather Statement | TWC | Santa Cruz | 54 min |
| Aug 15, 6:04 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Santa Cruz | 41 min |
| Aug 15, 6:14 PM MST | Areal Flood Advisory | TWC | Cochise | 63 min |
| Aug 15, 6:34 PM MST | Areal Flood Advisory | TWC | Cochise, Santa Cruz | 64 min |
| Aug 15, 7:06 PM MST | Special Weather Statement | TWC | Santa Cruz | 39 min |
| Aug 15, 7:25 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 61 min |
| Aug 15, 7:34 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 26 min |
| Aug 15, 7:36 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 114 min |
| Aug 15, 8:01 PM MST | Special Weather Statement | TWC | Santa Cruz | 44 min |
| Aug 15, 8:32 PM MST | Special Weather Statement | TWC | Pima | 43 min |
| Aug 15, 8:53 PM MST | Areal Flood Advisory | TWC | Pima | 97 min |
| Aug 15, 9:37 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Aug 16, 12:59 PM MST | Special Weather Statement | TWC | 31 min | |
| Aug 16, 1:54 PM MST | Areal Flood Advisory | TWC | Pima | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.