Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 5, 2011, 2:41 PM MST for Pima County, Santa Cruz County, Arizona. It was in force for 94 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
- Jul 5, 2011, 2:41 PM MST (21:41 UTC)
- Expired
- Jul 5, 2011, 4:15 PM MST
- In force
- 94 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties Pima County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 29 km from the middle of the area, began a volume at 21:42 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, 9.7 hours before the alert went out and 41 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
- -123 J/kg
- Mixed-layer LCL
- 1482 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
935 WGUS55 KTWC 052141 FFWTWC AZC019-023-052315- /O.NEW.KTWC.FF.W.0004.110705T2141Z-110705T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 241 PM MST TUE JUL 5 2011 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA... NORTH CENTRAL SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... * UNTIL 415 PM MST * AT 236 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN LIKELY RESULTING IN FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. * THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...MADERA CANYON... BOX CANYON WASH AND CALIENTE CANYON. 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. && LAT...LON 3189 11096 3181 11079 3167 11085 3173 11103 $$ KD
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 6:29 PM MST | Severe Thunderstorm Warning | TWC | Graham | 31 min |
| Jul 4, 7:08 PM MST | Areal Flood Advisory | TWC | Pinal | 112 min |
| Jul 4, 7:58 PM MST | Special Weather Statement | TWC | Pinal | 62 min |
| Jul 5, 12:34 PM MST | Special Weather Statement | TWC | Santa Cruz | 41 min |
| Jul 5, 12:52 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 38 min |
| Jul 5, 1:15 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 2 hr |
| Jul 5, 1:23 PM MST | Special Weather Statement | TWC | 37 min | |
| Jul 5, 1:54 PM MST | Special Weather Statement | TWC | Santa Cruz | 36 min |
| Jul 5, 2:22 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 53 min |
| Jul 5, 2:41 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 49 min |
| Jul 5, 2:59 PM MST | Special Weather Statement | TWC | Graham | 46 min |
| Jul 5, 3:37 PM MST | Severe Thunderstorm Warning | TWC | Pima | 53 min |
| Jul 5, 4:03 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 42 min |
| Jul 5, 4:36 PM MST | Severe Thunderstorm Warning | TWC | Pima | 54 min |
| Jul 5, 4:46 PM MST | Flash Flood Warning | TWC | Cochise, Pima | 119 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.