Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 46, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 26, 2012, 6:13 PM MST for Cochise County, Arizona. It was in force for 92 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 26, 2012, 6:13 PM MST (01:13 UTC)
- Expired
- Aug 26, 2012, 7:45 PM MST
- In force
- 92 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 136 km from the middle of the area, began a volume at 01:13 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 (KDMA), launched 00:00Z, 1.2 hours before the alert went out and 157 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
- 67 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 2898 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
114
WGUS55 KTWC 270113
FFWTWC
AZC003-270245-
/O.NEW.KTWC.FF.W.0046.120827T0113Z-120827T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
613 PM MST SUN AUG 26 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN COCHISE COUNTY IN SOUTHEAST ARIZONA...
* UNTIL 745 PM MST
* AT 610 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAIN IN THE
SAN SIMON AREA. RADAR RAINFALL ESTIMATES FROM THIS AREA INDICATE
THAT UP TO TWO INCHES OF RAINFALL HAS OCCURRED IN THE LAST HOUR.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN SIMON
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 3206 10918 3210 10934 3230 10942 3240 10938
3239 10906 3212 10905
$$
ZELL2 follow-up statements
045
WGUS75 KTWC 270158
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
658 PM MST SUN AUG 26 2012
AZC003-270245-
/O.CON.KTWC.FF.W.0046.000000T0000Z-120827T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
658 PM MST SUN AUG 26 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM MST FOR
NORTHEASTERN COCHISE COUNTY...
AT 655 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF THUNDERSTORMS IN THE SAN SIMON AREA. ALTHOUGH
THE STRENGTH OF THESE THUNDERSTORMS HAS DIMINISHED...RADAR RAINFALL
ESTIMATES INDICATE THAT BETWEEN TWO AND THREE INCHES OF RAINFALL HAS
OCCURRED IN THIS AREA IN THE LAST HOUR.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN SIMON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3206 10918 3210 10934 3230 10942 3240 10938
3239 10906 3212 10905
$$
ZELL433
WGUS75 KTWC 270249
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
749 PM MST SUN AUG 26 2012
AZC003-270255-
/O.EXP.KTWC.FF.W.0046.000000T0000Z-120827T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
749 PM MST SUN AUG 26 2012
...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHEASTERN COCHISE
COUNTY...
AT 743 PM MST...NATIONAL WEATHER SERVICE RADAR INDICATED THAT LIGHT
TO MODERATE RAIN REMAINED ACROSS PORTIONS OF NORTHEASTERN COCHISE
COUNTY. THE HEAVY RAINFALL HAS COME TO AN END. THE EARLIER HEAVY
RAIN WILL CONTINUE TO CAUSE RUNOFF THROUGH THE MID EVENING HOURS...
ALONG WITH PONDING OF WATER IN LOW SPOTS AND DIPS. A SMALL STREAM
FLOOD ADVISORY REMAINS IN EFFECT FOR THIS AREA UNTIL 830 PM MST THIS
EVENING.
LAT...LON 3206 10918 3210 10934 3230 10942 3240 10938
3239 10906 3212 10905
$$
ZELLThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 5:34 PM MST | Areal Flood Advisory | TWC | Cochise, Graham, Greenlee | 86 min |
| Aug 26, 7:01 PM MST | Areal Flood Advisory | TWC | Cochise, Graham, Greenlee | 89 min |
| Aug 27, 3:26 PM MST | Special Weather Statement | TWC | Santa Cruz | 34 min |
| Aug 27, 4:17 PM MST | Special Weather Statement | TWC | Santa Cruz | 58 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.