Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 66, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Sep 4, 2012, 4:25 PM MST for Gila County, Arizona. It was in force for 2 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 4, 2012, 4:25 PM MST (23:25 UTC)
- Expired
- Sep 4, 2012, 6:30 PM MST
- In force
- 2 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Gila County, AZ
The radar
The Phoenix radar (KIWA), 127 km from the middle of the area, began a volume at 23:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 4, 5:15 PM MST | FLASH FLOOD | 1 E San Carlos, AZ | MULTIPLE PEOPLE BEING RESCUED DUE TO HIGH WATER ALONG SR 170 IN SAN CARLOS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 11.4 hours before the alert went out and 150 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
- 46 J/kg
- Mixed-layer CIN
- -288 J/kg
- Mixed-layer LCL
- 1563 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
961
WGUS55 KPSR 042325
FFWPSR
AZC007-050130-
/O.NEW.KPSR.FF.W.0066.120904T2325Z-120905T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
425 PM MST TUE SEP 4 2012
THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN GILA COUNTY IN EAST CENTRAL ARIZONA...
* UNTIL 630 PM MST
* AT 422 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
VERY HEAVY RAIN THAT WILL CAUSE FLASH FLOODING. RADAR ESTIMATED
THAT OVER 1.5 INCHES OF RAIN HAS FALLEN NORTH OF SAN CARLOS SINCE
330 PM. AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE.
* THE HEAVY RAIN WILL AFFECT SYCAMORE CREEK NORTH OF SAN
CARLOS...NATURAL CORRAL CREEK...AND THE COMMUNITY OF SAN CARLOS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT PEOPLE ALONG THE BANKS OF WASHES AND
CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. NORMALLY DRY WASHES
AND STREAMS WILL SUDDENLY HAVE RUNNING WATER AND MAKE UNBRIDGED
CROSSINGS IMPASSABLE. STREETS...UNDERPASSES...AND LOW SPOTS WILL
BECOME INUNDATED MAKING DRIVING HAZARDOUS IN THE WARNED AREA.
NEVER ATTEMPT TO CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
&&
LAT...LON 3346 11013 3346 11016 3343 11021 3343 11032
3340 11035 3340 11040 3338 11043 3327 11044
3324 11048 3353 11056 3354 11030 3348 11009
$$
WOODALL3 follow-up statements
565
WGUS75 KPSR 050007
FFSPSR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
507 PM MST TUE SEP 4 2012
AZC007-050130-
/O.CON.KPSR.FF.W.0066.000000T0000Z-120905T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILA AZ-
507 PM MST TUE SEP 4 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR
SOUTHEASTERN GILA COUNTY...
AT 503 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS VERY HEAVY RAIN JUST EAST OF SAN CARLOS. MOVEMENT WAS
SLOWLY SOUTH.
UP TO 2 INCHES OF RAIN HAS FALLEN NORTH OF SAN CARLOS SINCE 400 PM.
RUNOFF AND FLOODING IS MOST LIKELY TO AFFECT SAN CARLOS...
PERIDOT...NATURAL CORRAL CREEK...AND THE SAN CARLOS RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT PEOPLE ALONG THE BANKS OF WASHES AND
CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. NORMALLY DRY WASHES
AND STREAMS WILL SUDDENLY HAVE RUNNING WATER AND MAKE UNBRIDGED
CROSSINGS IMPASSABLE. STREETS...UNDERPASSES...AND LOW SPOTS WILL
BECOME INUNDATED MAKING DRIVING HAZARDOUS IN THE WARNED AREA.
MOST FLOOD DEATHS OCCUR IN MOTORIZED VEHICLES. WHEN ENCOUNTERING
FLOODED ROADS...MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3346 11013 3346 11016 3343 11021 3343 11032
3340 11035 3340 11040 3338 11043 3327 11044
3324 11048 3353 11056 3354 11030 3348 11009
$$
WOODALL015
WGUS75 KPSR 050042
FFSPSR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
542 PM MST TUE SEP 4 2012
AZC007-050130-
/O.CON.KPSR.FF.W.0066.000000T0000Z-120905T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILA AZ-
542 PM MST TUE SEP 4 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR
SOUTHEASTERN GILA COUNTY...
OVER 2 INCHES OF RAIN FELL NORTH OF SAN CARLOS THIS AFTERNOON.
ALTHOUGH THE RAIN HAS DECREASED SINCE 515 PM...RUNOFF FROM THE
EARLIER HEAVY RAIN WILL CONTINUE THE FLOOD THREAT INTO THE EARLY
EVENING.
THE SAN CARLOS POLICE DEPARTMENT REPORTED FLOODING IN TOWN...AND
SEVERAL VEHICLES WERE STRANDED IN WATER ON THE EAST SIDE OF TOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT PEOPLE ALONG THE BANKS OF WASHES AND
CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. NORMALLY DRY WASHES
AND STREAMS WILL SUDDENLY HAVE RUNNING WATER AND MAKE UNBRIDGED
CROSSINGS IMPASSABLE. STREETS...UNDERPASSES...AND LOW SPOTS WILL
BECOME INUNDATED MAKING DRIVING HAZARDOUS IN THE WARNED AREA.
MOST FLOOD DEATHS OCCUR IN MOTORIZED VEHICLES. WHEN ENCOUNTERING
FLOODED ROADS...MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3346 11013 3346 11016 3343 11021 3343 11032
3340 11035 3340 11040 3338 11043 3327 11044
3324 11048 3350 11055 3354 11030 3348 11009
$$
WOODALL463
WGUS75 KPSR 050132
FFSPSR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
632 PM MST TUE SEP 4 2012
AZC007-050140-
/O.EXP.KPSR.FF.W.0066.000000T0000Z-120905T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILA AZ-
632 PM MST TUE SEP 4 2012
...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN GILA
COUNTY...
THE HEAVY RAIN WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THE SAN CARLOS POLICE DEPARTMENT REPORTED THAT FLOODING IN THE
COMMUNITY HAS DIMINISHED. THEREFORE...THE FLASH FLOOD WARNING WAS
ALLOWED TO EXPIRE.
LOCAL PONDING OF WATER MAY CONTINUE INTO THE EVENING HOURS. IF YOU
ARE TRAVELING THIS EVENING...BE CAUTIOUS AND STAY CLEAR OF AREAS
WHERE WATER COVERS THE ROAD.
LAT...LON 3346 11013 3346 11016 3343 11021 3343 11032
3340 11035 3340 11040 3338 11043 3327 11044
3324 11048 3350 11055 3354 11030 3348 11009
$$
WOODALLThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 5:09 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 3 hr |
| Sep 3, 5:42 PM MST | Flash Flood Warning | PSR | Maricopa | 3 hr |
| Sep 3, 6:20 PM MST | Special Weather Statement | PSR | 55 min | |
| Sep 4, 1:37 AM MST | Special Weather Statement | PSR | Pinal | 38 min |
| Sep 4, 1:59 AM MST | Areal Flood Advisory | PSR | Pinal | 2 hr |
| Sep 4, 1:40 PM MST | Special Weather Statement | PSR | 50 min | |
| Sep 4, 2:31 PM MST | Special Weather Statement | PSR | 59 min | |
| Sep 4, 2:39 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 66 min |
| Sep 4, 3:12 PM MST | Special Weather Statement | PSR | 48 min | |
| Sep 4, 3:19 PM MST | Flash Flood Warning | PSR | Gila | 101 min |
| Sep 4, 3:28 PM MST | Areal Flood Advisory | PSR | Maricopa | 2 hr |
| Sep 4, 3:49 PM MST | Special Weather Statement | PSR | Gila | 26 min |
| Sep 4, 4:17 PM MST | Severe Thunderstorm Warning | PSR | Gila | 43 min |
| Sep 4, 4:48 PM MST | Special Weather Statement | PSR | 57 min |
Nearby
Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.