Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 61, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 10, 2011, 3:39 PM MST for Pinal County, Arizona. It was in force for 111 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 10, 2011, 3:39 PM MST (22:39 UTC)
- Expired
- Sep 10, 2011, 5:30 PM MST
- In force
- 111 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pinal County, AZ
The radar
The Tucson radar (KEMX), 85 km from the middle of the area, began a volume at 22:39 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, 10.7 hours before the alert went out and 49 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
- 306 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1601 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
272 WGUS55 KTWC 102239 FFWTWC AZC021-110030- /O.NEW.KTWC.FF.W.0061.110910T2239Z-110911T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 339 PM MST SAT SEP 10 2011 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 530 PM MST * AT 335 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL VERY STRONG THUNDERSTORMS HAVE GENERATED HEAVY RAINFALL ACROSS SOUTH CENTRAL PINAL COUNTY NEAR AND NORTHWEST TO NORTH OF ORACLE JUNCTION. STORM TOTAL RAINFALL AMOUNTS NEAR 2 INCHES ARE EXPECTED TO GENERATE FLASH FLOODING ISSUES NEAR AND AROUND BIG WASH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ORACLE PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... PUTNAM WASH...BIG WASH...RAINBOW END WASH...BOWL CREEK...GUILD WASH...INDIAN WELL WASH...CHALK CREEK...CHIRREON WASH...BIG BERTHA WASH...AND HORSE FOOT WASH. 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 3265 11109 3268 11074 3252 11078 3252 11108 $$ MEYER
2 follow-up statements
915 WGUS75 KTWC 102343 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 443 PM MST SAT SEP 10 2011 AZC021-110030- /O.CON.KTWC.FF.W.0061.000000T0000Z-110911T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PINAL AZ- 443 PM MST SAT SEP 10 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM MST FOR SOUTH CENTRAL PINAL COUNTY... AT 436 PM MST...SHOWERS AND THUNDERSTORMS WERE DIMINISHING ACROSS SOUTH CENTRAL PINAL COUNTY NEAR ORACLE JUNCTION. HEAVY RUNOFF FROM EARLIER RAINFALL AMOUNTS IN EXCESS OF 2 INCHES WILL CONTINUE TO CAUSE FLOODING ISSUES. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ORACLE PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... PUTNAM WASH...BIG WASH...RAINBOW END WASH...BOWL CREEK...GUILD WASH...INDIAN WELL WASH...CHALK CREEK...CHIRREON WASH...BIG BERTHA WASH...AND HORSE FOOT WASH. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 3265 11109 3268 11074 3252 11078 3252 11108 $$ MEYER
399 WGUS75 KTWC 110029 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 529 PM MST SAT SEP 10 2011 AZC021-110036- /O.EXP.KTWC.FF.W.0061.000000T0000Z-110911T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PINAL AZ- 529 PM MST SAT SEP 10 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 530 PM MST FOR SOUTH CENTRAL PINAL COUNTY... AT 526 MST...NATIONAL WEATHER SERVICE RADAR INDICATED THE HEAVY RAINFALL OVER SOUTH CENTRAL PINAL COUNTY HAD COME TO AN END. LIGHT TO MODERATE RAINFALL CONTINUES IN THIS AREA...SO MOTORISTS SHOULD STILL EXERCISE CAUTION WITH PONDING OF WATER IN LOW SPOTS AND DIPS...AND SOME OF THE WASHES MAY CONTINUE TO RUN FOR THE NEXT HOUR OR SO. HOWEVER...THE FLASH FLOOD WARNING WILL EXPIRE AT 530 PM MST FOR SOUTH CENTRAL PINAL COUNTY. LAT...LON 3265 11109 3268 11074 3252 11078 3252 11108 $$ ZELL
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 5:08 PM MST | Severe Thunderstorm Warning | TWC | Pima | 37 min |
| Sep 9, 5:40 PM MST | Flash Flood Warning | TWC | Pima | 80 min |
| Sep 9, 5:40 PM MST | Severe Thunderstorm Warning | TWC | Pima | 65 min |
| Sep 9, 6:09 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 66 min |
| Sep 9, 6:14 PM MST | Special Weather Statement | TWC | 46 min | |
| Sep 9, 6:56 PM MST | Special Weather Statement | TWC | 49 min | |
| Sep 9, 7:02 PM MST | Flash Flood Warning | TWC | Pima | 88 min |
| Sep 9, 7:21 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 39 min |
| Sep 9, 7:52 PM MST | Flash Flood Warning | TWC | Cochise, Santa Cruz | 83 min |
| Sep 9, 8:31 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 74 min |
| Sep 9, 9:17 PM MST | Flash Flood Warning | TWC | Cochise | 58 min |
| Sep 10, 1:44 PM MST | Special Weather Statement | TWC | Pinal | 46 min |
| Sep 10, 2:23 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 37 min |
| Sep 10, 2:49 PM MST | Special Weather Statement | TWC | Cochise | 41 min |
| Sep 10, 2:55 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 50 min |
| Sep 10, 3:00 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 45 min |
| Sep 10, 3:10 PM MST | Tornado Warning | TWC | Pinal | 20 min |
| Sep 10, 3:23 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 52 min |
| Sep 10, 3:29 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 37 min |
| Sep 10, 3:45 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 45 min |
| Sep 10, 3:51 PM MST | Areal Flood Advisory | TWC | Cochise | 84 min |
| Sep 10, 3:51 PM MST | Severe Thunderstorm Warning | TWC | Graham, Pinal | 39 min |
| Sep 10, 4:06 PM MST | Flash Flood Warning | TWC | Cochise | 114 min |
| Sep 10, 4:12 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 48 min |
| Sep 10, 4:18 PM MST | Special Weather Statement | TWC | Pima | 42 min |
| Sep 10, 4:26 PM MST | Severe Thunderstorm Warning | TWC | Graham, Pinal | 64 min |
| Sep 10, 4:29 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Sep 10, 4:46 PM MST | Flash Flood Warning | TWC | Cochise | 89 min |
| Sep 10, 4:48 PM MST | Special Weather Statement | TWC | 42 min | |
| Sep 10, 4:55 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 50 min |
Nearby
Flash Flood Warnings in Arizona, 2011Every flash flood warning in 2011
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.