Alert archive / Arizona / Flash Flood Warnings in 1999
Flash Flood Warning 12, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 14, 1999, 4:32 PM MST for Yavapai County, Arizona. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1999, 4:32 PM MST (23:32 UTC)
- Expired
- Jul 14, 1999, 5:25 PM MST
- In force
- 53 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 23:35 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
Phoenix, AZ (KPSR), launched 12:00Z, 11.5 hours before the alert went out and 141 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
- 513 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1695 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning 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 warning went out at Jul 14, 2:30 PM MST, 2 hours 2 minutes earlier.
Area forecast discussion, Jul 14, 2:30 PM MST, 2 hours 2 minutes before
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</html>The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 5:40 PM MST | Flash Flood Warning | FGZ | Yavapai | 115 min |
| Jul 13, 7:35 PM MST | Flash Flood Warning | FGZ | Yavapai | 2 hr |
| Jul 14, 11:43 AM MST | Flash Flood Warning | FGZ | Coconino | 72 min |
| Jul 14, 12:32 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 48 min |
| Jul 14, 12:59 PM MST | Flash Flood Warning | FGZ | Coconino | 116 min |
| Jul 14, 1:19 PM MST | Flash Flood Warning | FGZ | Gila | 3 hr |
| Jul 14, 1:40 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Jul 14, 1:42 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 43 min |
| Jul 14, 3:45 PM MST | Flash Flood Warning | FGZ | Coconino | 105 min |
Nearby
Flash Flood Warnings in Arizona, 1999Every flash flood warning in 1999
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.