Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 36, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 7, 2011, 5:05 PM MST for Pima County, Arizona. It was in force for 115 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
- Aug 7, 2011, 5:05 PM MST (00:05 UTC)
- Expired
- Aug 7, 2011, 7:00 PM MST
- In force
- 115 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 144 km from the middle of the area, began a volume at 00:06 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
Phoenix, AZ (KPSR), launched 00:00Z, 0.1 hours before the alert went out and 146 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3261 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 7 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.
471
WGUS55 KTWC 080005
FFWTWC
AZC019-080200-
/O.NEW.KTWC.FF.W.0036.110808T0005Z-110808T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
505 PM MST SUN AUG 7 2011
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
* UNTIL 700 PM MST
* AT 457 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VENTANA...
VAYA CHIN...HICKIWAN AND HEADED FOR WHY.
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.
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 3250 11219 3212 11223 3194 11248 3183 11258
3191 11285 3249 11274
$$2 follow-up statements
812
WGUS75 KTWC 080024
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
524 PM MST SUN AUG 7 2011
AZC019-080200-
/O.CON.KTWC.FF.W.0036.000000T0000Z-110808T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
524 PM MST SUN AUG 7 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR WEST
CENTRAL PIMA COUNTY...
AT 510 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHY...
VENTANA...VAYA CHIN...SAN SIMON VILLAGE...KUAKATCH... HICKIWAN AND
GUNSIGHT.
RADAR RAINFALL ESTIMATES INDICATE THAT WIDESPREAD AMOUNTS OF A HALF
INCH TO AN INCH ARE LIKELY OCCURRING FROM NORTH OF HICKIWAN THEN
SOUTHWEST TOWARD KUAKATCH TO NEAR ORGAN PIPE CACTUS NATIONAL
MONUMENT. LOCALIZED AMOUNTS IN EXCESS OF 2.5 INCHES PER HOUR ARE
LIKELY OCCURRING SOUTH OF HICKIWAN. RUNOFF FROM THESE STORMS WILL
FLOW INTO THE HICKIWAN WASH...THE SAN SIMONE WASH AS WELL AS THE
KUAKATCH WASH. MOTORISTS TRAVELING ALONG HIGHWAY 86 SHOULD BE
ESPECIALLY CAUTIOUS BETWEEN SAN SIMONE VILLAGE AND WHY. SOME AREAS
OF THE ROADWAY MAY BE COVERED WITH WATER. DO NOT ATTEMPT TO CROSS
THE ROADWAY IF IT IS COVERED WITH WATER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 3250 11219 3212 11223 3194 11248 3183 11258
3191 11285 3249 11274
$$279
WGUS75 KTWC 080156
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
656 PM MST SUN AUG 7 2011
AZC019-080204-
/O.EXP.KTWC.FF.W.0036.000000T0000Z-110808T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
656 PM MST SUN AUG 7 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM MST FOR WEST CENTRAL
PIMA COUNTY...
THE STORMS THAT PRODUCED HEAVY RAIN EARLIER THIS AFTERNOON AND
EVENING HAVE MOVED WEST. THEREFORE...THE FLASH FLOOD WARNING WILL BE
ALLOWED TO EXPIRE AT 700 PM MST. HOWEVER...A SMALL STREAM FLOOD
ADVISORY CONTINUES THROUGH 8 PM MST FOR AREAS WEST OF A LINE FROM
VAYA CHIN TO SAN SIMONE VILLAGE TO PIA OIK.
LAT...LON 3250 11219 3212 11223 3194 11248 3183 11258
3191 11285 3249 11274
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:04 PM MST | Severe Thunderstorm Warning | TWC | Pima | 41 min |
| Aug 7, 5:44 PM MST | Severe Thunderstorm Warning | TWC | Pima | 16 min |
| Aug 7, 6:29 PM MST | Areal Flood Advisory | TWC | Pima | 91 min |
| Aug 8, 2:31 PM MST | Flash Flood Warning | TWC | Cochise | 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.