Alert archive / Arizona / Flash Flood Watches in 2013
Flash Flood Watch 9, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood watch at Aug 30, 2013, 9:55 AM MST for 5 counties in Arizona. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Aug 30, 2013, 9:55 AM MST (16:55 UTC)
- Expired
- Aug 31, 2013, 7:05 PM MST
- In force
- 33 hr
- Issued by
- NWS Flagstaff, AZ
- Flood severity
- None
Counties Apache County, AZ, Coconino County, AZ, Gila County, AZ, Navajo County, AZ, Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 52 km from the middle of the area, began a volume at 16:55 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, 4.9 hours before the alert went out and 78 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
- 8 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1071 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood watch went out at Aug 30, 3:46 AM MST, 6 hours 9 minutes earlier.
Area forecast discussion, Aug 30, 3:46 AM MST, 6 hours 9 minutes before
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</html>Hazardous weather outlook, Aug 30, 5:41 AM MST, 4 hours 14 minutes before
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</html>In the hours before
Local storm report, Aug 30, 9:12 AM MST, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
912 AM MST FRI AUG 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0643 PM FLASH FLOOD 5 S PAYSON 34.17N 111.33W
08/29/2013 GILA AZ TRAINED SPOTTER
SEVERE FLOODING REPORTED IN ROUND VALLEY. ONE VEHICLE
STUCK IN FLOODED WASH AND ONE ROAD INTO MIDDLE ROUND
VALLEY IMPASSABLE
&&
EVENT NUMBER FGZ1300078
BAKLocal storm report, Aug 30, 9:17 AM MST, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
917 AM MST FRI AUG 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0916 PM FLASH FLOOD 10 SE CONGRESS 34.06N 112.73W
08/29/2013 YAVAPAI AZ LAW ENFORCEMENT
CONSTELLATION RD WASHED OUT NORTH OF WICKENBURG
&&
EVENT NUMBER FGZ1300079
BAKThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 5:26 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
| Aug 29, 6:40 PM MST | Areal Flood Advisory | FGZ | Gila | 3 hr |
| Aug 29, 6:52 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 29, 6:56 PM MST | Areal Flood Advisory | FGZ | Coconino, Gila | 3 hr |
| Aug 29, 7:28 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 29, 7:45 PM MST | Flash Flood Warning | FGZ | Coconino, Gila | 3 hr |
| Aug 29, 8:12 PM MST | Areal Flood Advisory | FGZ | Gila, Yavapai | 3 hr |
| Aug 29, 8:27 PM MST | Special Weather Statement | FGZ | 48 min | |
| Aug 29, 9:25 PM MST | Special Weather Statement | FGZ | 35 min | |
| Aug 29, 9:43 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 29, 11:20 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
| Aug 30, 2:14 AM MST | Areal Flood Advisory | FGZ | Yavapai | 2 hr |
| Aug 30, 12:03 PM MST | Areal Flood Advisory | FGZ | Coconino | 3 hr |
| Aug 30, 1:33 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 30, 3:29 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 31 min |
| Aug 30, 4:11 PM MST | Areal Flood Advisory | FGZ | Yavapai | 64 min |
| Aug 30, 4:19 PM MST | Special Weather Statement | FGZ | 41 min |
Nearby
Flash Flood Watches in Arizona, 2013Every flash flood watch in 2013
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.