Alert archive / Arizona / Flash Flood Watches in 2020
Flash Flood Watch 5, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood watch at Jul 24, 2020, 10:29 AM MST for Gila County, Arizona. It took effect at Jul 24, 2020, 1:00 PM MST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 24, 2020, 10:29 AM MST (17:29 UTC)
- In effect from
- Jul 24, 2020, 1:00 PM MST
- Expired
- Jul 24, 2020, 6:28 PM MST
- In force
- 5 hr
- Issued by
- NWS Phoenix, AZ
- Flood severity
- None
County Gila County, AZ
The radar
The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 17:29 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, 5.5 hours before the alert went out and 115 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
- 240 J/kg
- Mixed-layer CIN
- -193 J/kg
- Mixed-layer LCL
- 1585 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 26 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 Phoenix, AZ wrote its last area forecast discussion before this flash flood watch went out at Jul 24, 5:45 AM MST, 4 hours 44 minutes earlier.
Area forecast discussion, Jul 24, 5:45 AM MST, 4 hours 44 minutes before
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</html>The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 5:47 PM MST | Special Weather Statement | PSR | 58 min | |
| Jul 23, 10:36 PM MST | Special Weather Statement | PSR | 39 min | |
| Jul 23, 11:09 PM MST | Areal Flood Advisory | PSR | La Paz, Maricopa | 3 hr |
| Jul 23, 11:15 PM MST | Special Weather Statement | PSR | 45 min | |
| Jul 23, 11:59 PM MST | Flash Flood Warning | PSR | La Paz, Maricopa | 2 hr |
| Jul 24, 3:49 PM MST | Flash Flood Warning | PSR | Maricopa | 4 hr |
| Jul 24, 4:58 PM MST | Special Weather Statement | PSR | Maricopa | 47 min |
Nearby
Flash Flood Watches in Arizona, 2020Every flash flood watch in 2020
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.