Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 66, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 10, 2011, 6:08 PM MST for Cochise County, Arizona. It was in force for 82 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, 7:30 PM MST
- In force
- 82 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 69 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 95 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.
877 WGUS55 KTWC 110108 RRA FFWTWC AZC003-110230- /O.NEW.KTWC.FF.W.0066.110911T0108Z-110911T0230Z/ /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 COCHISE COUNTY IN SOUTHEAST ARIZONA... * UNTIL 730 PM MST * AT 602 PM MST...A CLUSTER OF THUNDERSTORMS OVER CENTRAL COCHISE COUNTY IS LIKELY PRODUCING FLASH FLOODING NEAR TEXAS CANYON TO SUNIZONA. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SUNIZONA... PEARCE-SUNSITES...KANSAS SETTLEMENT...I-10 AND TEXAS CANYON... DRAGOON AND COCHISE PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3216 11024 3223 10948 3166 10948 3174 11011 $$
2 follow-up statements
925 WGUS75 KTWC 110158 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 658 PM MST SAT SEP 10 2011 AZC003-110230- /O.CON.KTWC.FF.W.0066.000000T0000Z-110911T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 658 PM MST SAT SEP 10 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM MST FOR CENTRAL COCHISE COUNTY... AT 648 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING HEAVY RAIN AND POSSIBLE FLASH FLOODING OVER CENTRAL PORTIONS OF COCHISE COUNTY. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KANSAS SETTLEMENT...I-10 AND TEXAS CANYON...DRAGOON AND COCHISE. THE HEAVIEST RAIN IS OCCURRING SOUTH OF COCHISE TO SOUTH OF PEARCE-SUNSITES AND WEST OF RUCKER CANYON. RADAR RAINFALL ESTIMATES INDICATE AMOUNTS OF MORE THAN 1.5 INCHES WITH THESE STORMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 3216 11024 3223 10948 3166 10948 3174 11011 $$
515 WGUS75 KTWC 110229 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 729 PM MST SAT SEP 10 2011 AZC003-110237- /O.EXP.KTWC.FF.W.0066.000000T0000Z-110911T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 729 PM MST SAT SEP 10 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM MST FOR CENTRAL COCHISE COUNTY... THE HEAVY RAINS THAT OCCURRED EARLIER THIS EVENING HAS BEEN DECREASING. THEREFORE...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 730 PM MST. HOWEVER...A SMALL STREAM FLOOD ADVISORY CONTINUES OVER CENTRAL AND EASTERN PORTIONS OF COCHISE COUNTY UNTIL 845 PM MST. LAT...LON 3216 11024 3223 10948 3166 10948 3174 11011 $$
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 | Pima | 112 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.