Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 35, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Aug 30, 2012, 2:29 PM MST for Coconino County, Arizona. It was in force for 3 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
- Aug 30, 2012, 2:29 PM MST (21:29 UTC)
- Expired
- Aug 30, 2012, 5:30 PM MST
- In force
- 3 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Coconino County, AZ
The radar
The Cedar City radar (KICX), 154 km from the middle of the area, began a volume at 21:31 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.5 hours before the alert went out and 184 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
- 93 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 2049 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
255 WGUS55 KFGZ 302129 FFWFGZ AZC005-310030- /O.NEW.KFGZ.FF.W.0035.120830T2129Z-120831T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 229 PM MST THU AUG 30 2012 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA... THIS INCLUDES THE CITY OF ANTELOPE CANYON NEAR SR 98... * UNTIL 530 PM MST * AT 223 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN FROM A THUNDERSTORM OVER THE ANTELOPE CANYON DRAINAGE AREA THAT WILL PRODUCE FLASH FLOODING. RAPID RISES ALONG ANTELOPE CREEK AND THROUGH ANTELOPE CANYON ARE LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... ANTELOPE CREEK AND PEACH WASH. FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS. 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 3696 11144 3695 11139 3668 11126 3670 11144 $$ OUTLER
2 follow-up statements
127 WGUS55 KFGZ 302133 CCA FFWFGZ AZC005-310030- /O.COR.KFGZ.FF.W.0035.120830T2129Z-120831T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE FLAGSTAFF AZ 229 PM MST THU AUG 30 2012 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA... THIS INCLUDES ANTELOPE CANYON NEAR SR 98... * UNTIL 530 PM MST * AT 223 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN FROM A THUNDERSTORM OVER THE ANTELOPE CANYON DRAINAGE AREA THAT WILL PRODUCE FLASH FLOODING. RAPID RISES ALONG ANTELOPE CREEK AND THROUGH ANTELOPE CANYON ARE LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... ANTELOPE CREEK AND PEACH WASH. FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3696 11144 3695 11139 3668 11126 3670 11144 $$ OUTLER
502 WGUS75 KFGZ 310024 FFSFGZ FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 524 PM MST THU AUG 30 2012 AZC005-310032- /O.EXP.KFGZ.FF.W.0035.000000T0000Z-120831T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCONINO AZ- 524 PM MST THU AUG 30 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 530 PM MST FOR NORTH CENTRAL COCONINO COUNTY... HEAVY RAIN WHICH PROMPTED THE FLASH FLOOD WARNING FOR THE ANTELOPE CANYON DRAINAGE BASIN HAS EXITED THE AREA...NO REPORTS OF FLOODING WERE RECEIVED. LAT...LON 3696 11144 3695 11139 3668 11126 3670 11144 $$ OUTLER
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 9:23 PM MST | Special Weather Statement | FGZ | 22 min | |
| Aug 29, 11:12 PM MST | Special Weather Statement | FGZ | 48 min | |
| Aug 30, 12:17 PM MST | Special Weather Statement | FGZ | Yavapai | 28 min |
| Aug 30, 1:03 PM MST | Special Weather Statement | FGZ | Gila | 27 min |
| Aug 30, 1:40 PM MST | Areal Flood Advisory | FGZ | Gila | 2 hr |
| Aug 30, 2:12 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
| Aug 30, 3:19 PM MST | Areal Flood Advisory | FGZ | Gila | 3 hr |
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.