Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 8, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 14, 2012, 1:42 PM MST for Pima County, Arizona. It was in force for 2 hr. 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 14, 2012, 1:42 PM MST (20:42 UTC)
- Expired
- Jul 14, 2012, 3:45 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 130 km from the middle of the area, began a volume at 20:44 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 12:00Z, 8.7 hours before the alert went out and 133 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
- 1064 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1390 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
778
WGUS55 KTWC 142042
FFWTWC
AZC019-142245-
/O.NEW.KTWC.FF.W.0008.120714T2042Z-120714T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
142 PM MST SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
* UNTIL 345 PM MST
* AT 136 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
NUMEROUS THUNDERSTORMS ACROSS WESTERN PIMA COUNTY GENERALLY IN
AN AREA FROM JUST EAST OF AJO EASTWARD TO SANTA ROSA. MOVEMENT
OF THESE THUNDERSTORMS WAS TO THE NORTH AT 15 MPH. DOPPLER
RADAR RAINFALL ESTIMATES OF 2 TO 3 INCHES HAS OCCURRED SINCE
1240 PM ACROSS THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SANTA ROSA
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.
&&
LAT...LON 3250 11273 3250 11182 3207 11176 3204 11244
3207 11280
$$2 follow-up statements
551
WGUS75 KTWC 142129
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
229 PM MST SAT JUL 14 2012
AZC019-142245-
/O.CON.KTWC.FF.W.0008.000000T0000Z-120714T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
229 PM MST SAT JUL 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MST FOR
WESTERN PIMA COUNTY...
AT 218 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS WESTERN PIMA
COUNTY. THESE THUNDERSTORMS WERE IN AN AREA FROM JUST EAST OF AJO
EASTWARD TO SANTA ROSA. MOVEMENT OF THESE THUNDERSTORMS WAS TO THE
NORTH AT 15 MPH. DOPPLER RADAR ESTIMATES OF 1 TO 2 INCHES OF
RAINFALL HAS OCCURRED IN THIS AREA SINCE 145 PM MST. THESE RAINFALL
AMOUNTS WILL CAUSE FLOODING OF WASHES AND STREAM BEDS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SANTA ROSA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3250 11273 3250 11182 3207 11176 3204 11244
3207 11280
$$250
WGUS75 KTWC 142250
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
350 PM MST SAT JUL 14 2012
AZC019-142259-
/O.EXP.KTWC.FF.W.0008.000000T0000Z-120714T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
350 PM MST SAT JUL 14 2012
...THE FLASH FLOOD WARNING HAS EXPIRED FOR WESTERN PIMA COUNTY...
AT 349 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THUNDERSTORMS HAD WEAKENED AND MOVED NORTH OF THE AREA. THUS
RAINFALL AND FLASH FLOODING HAD DIMINISHED ACROSS WESTERN PIMA
COUNTY. ELEVATED FLOWS WILL CONTINUE IN AREA WASHES FOR THE NEXT FEW
HOURS AND CAUTION SHOULD STILL BE EXERCISED.
LAT...LON 3250 11273 3250 11182 3207 11176 3204 11244
3207 11280
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 5:18 PM MST | Special Weather Statement | TWC | Santa Cruz | 42 min |
| Jul 14, 12:26 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
| Jul 14, 12:48 PM MST | Special Weather Statement | TWC | Santa Cruz | 42 min |
| Jul 14, 1:04 PM MST | Areal Flood Advisory | TWC | Cochise, Graham, Pima, Pinal | 4 hr |
| Jul 14, 1:48 PM MST | Special Weather Statement | TWC | 42 min | |
| Jul 14, 2:15 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 45 min |
| Jul 14, 2:47 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 118 min |
| Jul 14, 4:49 PM MST | Special Weather Statement | TWC | 41 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.