Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 41, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 13, 2011, 2:21 PM MST for Cochise County, Arizona. It was in force for 84 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 13, 2011, 2:21 PM MST (21:21 UTC)
- Expired
- Aug 13, 2011, 3:45 PM MST
- In force
- 84 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 126 km from the middle of the area, began a volume at 21:21 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 12:00Z, 9.4 hours before the alert went out and 156 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
- 10 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
891
WGUS55 KTWC 132121
FFWTWC
AZC003-132245-
/O.NEW.KTWC.FF.W.0041.110813T2121Z-110813T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
221 PM MST SAT AUG 13 2011
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL COCHISE COUNTY IN SOUTHEAST ARIZONA...
* UNTIL 345 PM MST
* AT 214 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER THE CHIRICAHUA MOUNTAINS
IMPACTING THE HORSESHOE 2 FIRE BURN SCAR AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL...
PARADISE AND CHIRICAHUA NATIONAL MONUMENT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN THE WARNED AREA.
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 3178 10948 3215 10943 3209 10910 3186 10905
3166 10916 3164 10935
$$
GL2 follow-up statements
679
WGUS75 KTWC 132159
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
259 PM MST SAT AUG 13 2011
AZC003-132245-
/O.CON.KTWC.FF.W.0041.000000T0000Z-110813T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
259 PM MST SAT AUG 13 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MST FOR EAST
CENTRAL COCHISE COUNTY...
AT 255 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE HORSESHOE
2 FIRE BURN SCAR AREA IN THE CHIRICAHUA MOUNTAINS. RADAR RAINFALL
ESTIMATES INDICATE ONE TO TWO INCHES OF RAIN HAS OCCURRED IN THIS
REGION CAUSING FLASH FLOODING.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL...
PARADISE AND CHIRICAHUA NATIONAL MONUMENT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3178 10948 3215 10943 3209 10910 3186 10905
3166 10916 3164 10935
$$
GL149
WGUS75 KTWC 132243
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
343 PM MST SAT AUG 13 2011
AZC003-132252-
/O.EXP.KTWC.FF.W.0041.000000T0000Z-110813T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
343 PM MST SAT AUG 13 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 PM MST FOR EAST CENTRAL
COCHISE COUNTY...
RAINFALL HAS ENDED ACROSS THE CHIRICAHUA MOUNTAINS AFTER ONE TO TWO
INCHES OF RAIN PRIMARILY ALONG THE RIDGETOPS. FLASH FLOODING FROM
THE BURN SCAR AREA SHOULD HAVE NOW SUBSIDED BUT ELEVATED FLOWS ARE
POSSIBLE FOR THE NEXT HOUR OR SO.
LAT...LON 3178 10948 3215 10943 3209 10910 3186 10905
3166 10916 3164 10935
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:33 PM MST | Severe Thunderstorm Warning | TWC | Graham, Greenlee | 42 min |
| Aug 12, 5:50 PM MST | Areal Flood Advisory | TWC | Graham, Greenlee | 115 min |
| Aug 12, 6:19 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 116 min |
| Aug 12, 6:58 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 62 min |
| Aug 12, 7:33 PM MST | Areal Flood Advisory | TWC | Cochise, Graham | 117 min |
| Aug 12, 8:27 PM MST | Special Weather Statement | TWC | Cochise | 48 min |
| Aug 13, 3:21 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 39 min |
| Aug 13, 3:55 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
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.