Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 80, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 10, 2012, 5:03 PM MST for Pima County, Arizona. It was in force for 5 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
- Sep 10, 2012, 5:03 PM MST (00:03 UTC)
- Expired
- Sep 10, 2012, 10:00 PM MST
- In force
- 5 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 124 km from the middle of the area, began a volume at 00:03 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, 0.1 hours before the alert went out and 99 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
- 135 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 1965 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
622
WGUS55 KTWC 110003
FFWTWC
AZC019-110300-
/O.NEW.KTWC.FF.W.0080.120911T0003Z-120911T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
503 PM MST MON SEP 10 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
THIS INCLUDES THE CITY OF SELLS...
* UNTIL 800 PM MST
* AT 448 PM MST...DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS
EAST OF SELLS AND ISOLATED THUNDERSTORMS WEST OF SELLS. ALL OF
THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN. OVER THE
NEXT COUPLE OF HOURS...ADDITIONAL STORMS WILL BE DEVELOPING ACROSS
THE WARNED AREA AND STORMS SOUTH OF THE BORDER WILL MOVE NORTH
INTO THE WARNED AREA. SINCE THIS AREA IS PRETTY SATURATED AFTER
SEEING HEAVY RAIN OVER THE PAST SEVERAL DAYS...ANY RAIN THAT FALLS
WILL QUICKLY TURN INTO RUNOFF.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES
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 3186 11277 3250 11271 3249 11146 3236 11130
3194 11149 3177 11148 3148 11153
$$2 follow-up statements
857
WGUS55 KTWC 110256
FFWTWC
AZC019-110500-
/O.EXT.KTWC.FF.W.0080.000000T0000Z-120911T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
756 PM MST MON SEP 10 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
THIS INCLUDES THE CITY OF SELLS...
* UNTIL 1000 PM MST
* AT 745 PM MST...AREAS OF MODERATE RAIN CONTINUES ACROSS CENTRAL
PIMA COUNTY. SEVERAL AREAS MAY HAVE RECORDED UP THREE INCHES OF RAIN
SINCE LATE THIS AFTERNOON. THE AREAS OF CONCERN FOR HEAVY FLOW IN
WASHES AND STREAMS ARE NEAR HICKIWAN...COVERED WELLS...BETWEEN GU VO
AND PISINIMO AND BETWEEN COWLIC AND VAMORI.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES
AND STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO
RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3186 11277 3250 11271 3249 11146 3236 11130
3194 11149 3177 11148 3148 11153
$$382
WGUS75 KTWC 110457
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
957 PM MST MON SEP 10 2012
AZC019-110504-
/O.EXP.KTWC.FF.W.0080.000000T0000Z-120911T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
957 PM MST MON SEP 10 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 1000 PM MST FOR CENTRAL
PIMA COUNTY...
LIGHT TO MODERATE RAIN WILL CONTINUE ACROSS CENTRAL PIMA COUNTY
THROUGH MIDNIGHT. THE FLASHY NATURE OF RUNOFF HAS DIMINISHED THUS
THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 10 PM. HOWEVER
SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED WHICH WILL BE IN EFFECT
UNTIL 1145 PM MST.
LAT...LON 3186 11277 3250 11271 3249 11146 3236 11130
3194 11149 3177 11148 3148 11153
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 5:23 PM MST | Severe Thunderstorm Warning | TWC | Pima | 37 min |
| Sep 10, 5:25 PM MST | Severe Thunderstorm Warning | TWC | Pima | 35 min |
| Sep 10, 6:09 PM MST | Severe Thunderstorm Warning | TWC | Pima | 25 min |
| Sep 10, 6:23 PM MST | Special Weather Statement | TWC | 52 min | |
| Sep 10, 9:20 PM MST | Areal Flood Advisory | TWC | Pinal | 115 min |
| Sep 10, 9:53 PM MST | Areal Flood Advisory | TWC | Pima | 112 min |
| Sep 10, 10:26 PM MST | Areal Flood Warning | TWC | Pima | 14 hr |
| Sep 11, 2:17 AM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 13 hr |
| Sep 11, 1:32 PM MST | Areal Flood Advisory | TWC | Pima | 88 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.