Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 65, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 10, 2011, 6:08 PM MST for Pima County, Arizona. It was in force for 112 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, 6:08 PM MST (01:08 UTC)
- Expired
- Sep 10, 2011, 8:00 PM MST
- In force
- 112 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 108 km from the middle of the area, began a volume at 01:12 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 00:00Z, 1.1 hours before the alert went out and 77 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
- 263 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 2106 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
643 WGUS55 KTWC 110108 FFWTWC AZC019-110300- /O.NEW.KTWC.FF.W.0065.110911T0108Z-110911T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 608 PM MST SAT SEP 10 2011 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 800 PM MST * AT 600 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM AN AREA OF STRONG TO SEVERE THUNDERSTORMS IN CENTRAL PORTIONS OF THE TOHONO O'ODHAM NATION NORTHEAST OF SELLS...AROUND SANTA ROSA RANCH...COMOBABI...AND SAN ISIDRO. RAINFALL AMOUNTS IN EXCESS OF 2 INCHES WILL CAUSE WIDESPREAD FLOODING ISSUES. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SILVER BELL...SIL NAGGIA...SANTA ROSA RANCH AND QUEENS WELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... AGUIRRE WASH...SIL NAKYA WASH...BLANCO WASH...SAN VICENTE WASH...KO VAYA WASH...VIOPULI WASH...SOUTH MENDOZA WASH...PAN WASH...ALTAR WASH...SELLS WASH...SAN JUAN WASH...PAN TAK WASH...MURK KUI WASH... SAN LUIS WASH...COMOBABI WASH...SAUCITO WASH...MENDOZA WASH...ALAMBRE WASH...SOLANO WASH...HOUSE WASH...ALI MOLINA WASH...ANEGAN WASH AND BANNER WASH. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...ROADS AND HIGHWAYS AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 3239 11192 3241 11138 3188 11147 3196 11187 $$ MEYER
2 follow-up statements
895 WGUS75 KTWC 110145 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 645 PM MST SAT SEP 10 2011 AZC019-110300- /O.CON.KTWC.FF.W.0065.000000T0000Z-110911T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 645 PM MST SAT SEP 10 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MST FOR CENTRAL PIMA COUNTY... AT 636 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE AN AREA OF STRONG THUNDERSTORMS GENERATING HEAVY RAINFALL ACROSS NORTH CENTRAL PORTIONS OF THE TOHONO O'ODHAM NATION...WITH HEAVIEST STORMS LOCATED NORTH OF QUEENS WELL AND WEST OF SILVER BELL. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SILVER BELL...SIL NAGGIA...SANTA ROSA RANCH...SAN PEDRO...QUEENS WELL...PAN TAK AND COMOBABI. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... AGUIRRE WASH...SIL NAKYA WASH...BLANCO WASH...SAN VICENTE WASH...KO VAYA WASH...VIOPULI WASH...SOUTH MENDOZA WASH...PAN WASH...ALTAR WASH...SELLS WASH...SAN JUAN WASH...PAN TAK WASH...MURK KUI WASH... SAN LUIS WASH...COMOBABI WASH...SAUCITO WASH...MENDOZA WASH...ALAMBRE WASH...SOLANO WASH...HOUSE WASH...ALI MOLINA WASH...ANEGAN WASH AND BANNER WASH. && LAT...LON 3239 11192 3241 11138 3188 11147 3196 11187 $$ MEYER
412 WGUS75 KTWC 110257 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 757 PM MST SAT SEP 10 2011 AZC019-110306- /O.EXP.KTWC.FF.W.0065.000000T0000Z-110911T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 757 PM MST SAT SEP 10 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM MST FOR CENTRAL PIMA COUNTY... AT 755 PM MST...NATIONAL WEATHER SERVICE RADAR INDICATES THAT THE HEAVY RAIN HAS COME TO AN END. THEREFORE...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 800 PM MST. LAT...LON 3239 11192 3241 11138 3188 11147 3196 11187 $$ ZELL
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 5:09 PM MST | Areal Flood Advisory | TWC | Pima | 47 min |
| Sep 10, 5:17 PM MST | Areal Flood Advisory | TWC | Cochise | 88 min |
| Sep 10, 5:22 PM MST | Severe Thunderstorm Warning | TWC | Pima | 24 min |
| Sep 10, 5:24 PM MST | Areal Flood Advisory | TWC | Pima | 111 min |
| Sep 10, 5:39 PM MST | Flash Flood Warning | TWC | Pima | 81 min |
| Sep 10, 5:43 PM MST | Severe Thunderstorm Warning | TWC | Pima | 62 min |
| Sep 10, 5:43 PM MST | Severe Thunderstorm Warning | TWC | Pima | 47 min |
| Sep 10, 6:08 PM MST | Flash Flood Warning | TWC | Cochise | 82 min |
| Sep 10, 6:59 PM MST | Flash Flood Warning | TWC | Pima | 91 min |
| Sep 10, 7:20 PM MST | Areal Flood Advisory | TWC | Cochise | 85 min |
| Sep 10, 8:29 PM MST | Flash Flood Warning | TWC | Pima | 61 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.