Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 11, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 15, 2012, 5:00 PM MST for Pima County, Pinal County, Arizona. It was in force for 2 hr. 4 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 15, 2012, 5:00 PM MST (00:00 UTC)
- Expired
- Jul 15, 2012, 7:00 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties Pima County, AZ, Pinal County, AZ
The radar
The Tucson radar (KEMX), 59 km from the middle of the area, began a volume at 00:03 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 |
|---|---|---|---|
| Jul 15, 5:30 PM MST | FLASH FLOOD | 4 Wnw Tucson Internatio, AZ | KGUN9 REPORTED ON THEIR WEB PAGE THAT THE TUCSON FIRE DEPT. RESPONDED TO A RESCUE AT MISSION ROAD AND OAK TREE WHERE THERE WAS A CAR STUCK IN A FLOODED AREA. NO WORD YET ON CONDITION ON THOSE STUCK IN VEHICLE. |
| Jul 15, 5:35 PM MST | FLASH FLOOD | 13 N Tucson, AZ | SWIFT WATER RESCUE |
| Jul 15, 5:36 PM MST | FLASH FLOOD | 4 Wnw Tucson Internatio, AZ | KGUN9 REPORTED ON THEIR WEB PAGE THAT THE TUCSON FIRE DEPT. RESPONDED TO A RESCUE AT MISSION ROAD AND OAK TREE WHERE THERE WAS A CAR STUCK IN A FLOODED AREA. NO WORD YET ON CONDITION ON THOSE STUCK IN VEHICLE. |
| Jul 15, 6:15 PM MST | FLASH FLOOD | 7 Nw Tucson, AZ | KGUN9 REPORTED ON THEIR WEB PAGE THAT NORTHWEST FIRE RESPONDED TO A WOMEN STRANDED IN HER VEHICLE BECAUSE OF HIGH WATERS NEAR INTERSTATE 10 AND EL CAMINO DEL CERRO. |
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 00:00Z, 0.0 hours before the alert went out and 23 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
- 880 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 2268 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
872 WGUS55 KTWC 160000 FFWTWC AZC019-021-160200- /O.NEW.KTWC.FF.W.0011.120716T0000Z-120716T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 500 PM MST SUN JUL 15 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... SOUTHEASTERN PINAL COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 700 PM MST * AT 455 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA. STORMS WILL PERSIST ACROSS THE TUCSON METRO AREA THROUGH AT LEAST 6 PM WITH EXCESSIVE RUNOFF PERSISTING INTO EARLY EVENING. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE ENTIRE TUCSON METRO AREA FROM VAIL AND SAHUARITA NORTHWARD TO ORACLE. 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. 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. && LAT...LON 3267 11114 3264 11046 3198 11045 3191 11123 $$ KD
1 follow-up statement
741 WGUS75 KTWC 160051 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 551 PM MST SUN JUL 15 2012 AZC019-021-160200- /O.CON.KTWC.FF.W.0011.000000T0000Z-120716T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ-PINAL AZ- 551 PM MST SUN JUL 15 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR SOUTHEASTERN PINAL AND NORTHEASTERN PIMA COUNTIES... AT 541 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA. THE HEAVIEST RAIN WAS OCCURRING FROM THE WEST SIDE OF TUCSON EASTWARD TO THE CATALINA FOOTHILLS TO SUMMERHAVEN TO NORTH OF REDINGTON AND SAN MANUEL. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE TUCSON METRO AREA FROM SAHUARITA TO ORACLE AS RUNOFF FROM EARLIER STORMS COMBINES WITH THAT FROM ONGOING HEAVY RAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3267 11114 3264 11046 3198 11045 3191 11123 $$ KD
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:11 PM MST | Areal Flood Advisory | TWC | Pinal | 67 min |
| Jul 15, 6:13 PM MST | Severe Thunderstorm Warning | TWC | Graham, Pinal | 32 min |
| Jul 15, 6:17 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
| Jul 15, 6:51 PM MST | Areal Flood Warning | TWC | Pima | 12 hr |
| Jul 15, 7:02 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 118 min |
| Jul 15, 7:11 PM MST | Areal Flood Advisory | TWC | Graham, Greenlee, Pinal | 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.