Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 25, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 29, 2012, 4:13 PM MST for Pima County, Arizona. It was in force for 2 hr. 2 reports 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
- Jul 29, 2012, 4:13 PM MST (23:13 UTC)
- Expired
- Jul 29, 2012, 6:15 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 29, 4:13 PM MST | FLASH FLOOD | Marana, AZ | SWIFT WATER RESCUE ON SANDARIO ROAD IN MARANA |
| Jul 29, 5:48 PM MST | FLASH FLOOD | Picture Rocks, AZ | CURRENT SWIFT WATER RESCUES AT ORANGE GROVE SILVERBELL AND 11000 BLOCK W ANTHONY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 11.2 hours before the alert went out and 46 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
- 397 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 1146 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
311 WGUS55 KTWC 292313 FFWTWC AZC019-300115- /O.NEW.KTWC.FF.W.0025.120729T2313Z-120730T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 413 PM MST SUN JUL 29 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITIES OF...TUCSON...ORO VALLEY...MARANA... * UNTIL 615 PM MST * AT 410 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED WIDESPREAD SHOWERS ACROSS NORTHCENTRAL AND EASTERN PIMA COUNTY WITH STRONG THUNDERSTORMS CONTINUING NEAR WEST TUCSON. COMBINED WITH EARLIER RAINFALL AMOUNTS BETWEEN 1.5 AND 2.5 INCHES IN SOME LOCATIONS...THE FLASH FLOOD WARNINGS FOR THE AREA HAVE BEEN EXTENDED UNTIL 615 PM MST. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AVRA VALLEY...PICTURE ROCKS...CATALINA AND RINCON FOOTHILL AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 3250 11196 3249 11047 3216 11056 3216 11174 $$ MEYER
2 follow-up statements
178 WGUS75 KTWC 300018 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 518 PM MST SUN JUL 29 2012 AZC019-300115- /O.CON.KTWC.FF.W.0025.000000T0000Z-120730T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 518 PM MST SUN JUL 29 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM MST FOR NORTHEASTERN PIMA COUNTY... AT 510 PM MST...SHOWERS CONTINUED TO WEAKEN ACROSS MOST OF EASTERN PIMA COUNTY. MODERATE SHOWERS REMAINED ACROSS CATALINA FOOTHILLS LOCATIONS EXTENDING WESTWARD TO NEAR ORO VALLEY AND MARANA. HEAVY RUNOFF WILL CONTINUE FROM EARLIER RAINFALL AMOUNTS BETWEEN 1.5 AND 2.5 INCHES IN SOME LOCATIONS...INCLUDING AREAS AROUND AVRA VALLEY...PICTURE ROCKS...NORTHWEST TUCSON...CATALINA AND RINCON FOOTHILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 3250 11196 3249 11047 3216 11056 3216 11174 $$ MEYER
803 WGUS75 KTWC 300107 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 607 PM MST SUN JUL 29 2012 AZC019-300116- /O.EXP.KTWC.FF.W.0025.000000T0000Z-120730T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 607 PM MST SUN JUL 29 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 615 PM MST FOR NORTHEASTERN PIMA COUNTY... AT 605 PM MST SHOWERS AND THUNDERSTORMS HAD GENERALLY ENDED ACROSS NORTHEAST PIMA COUNTY. EXCESSIVE FLOW WILL CONTINUE OVERNIGHT IN MANY WASHES WITH ROAD CLOSURES IN SOME LOCATIONS TO CONTINUE. LAT...LON 3250 11196 3249 11047 3216 11056 3216 11174 $$ MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 5:32 PM MST | Areal Flood Advisory | TWC | Pinal | 118 min |
| Jul 28, 6:00 PM MST | Areal Flood Advisory | TWC | Pima | 90 min |
| Jul 29, 9:56 AM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 10 hr |
| Jul 29, 11:23 AM MST | Special Weather Statement | TWC | 37 min | |
| Jul 29, 11:43 AM MST | Areal Flood Advisory | TWC | Pima | 92 min |
| Jul 29, 12:44 PM MST | Special Weather Statement | TWC | Graham | 31 min |
| Jul 29, 1:19 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
| Jul 29, 2:01 PM MST | Special Weather Statement | TWC | 44 min | |
| Jul 29, 2:16 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 119 min |
| Jul 29, 2:44 PM MST | Flash Flood Warning | TWC | Pima | 91 min |
| Jul 29, 3:12 PM MST | Areal Flood Advisory | TWC | Pinal | 2 hr |
| Jul 29, 3:26 PM MST | Special Weather Statement | TWC | Pinal | 49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.