Alert archive / Arizona / Flash Flood Warnings in 2019
Flash Flood Warning 27, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 31, 2019, 1:58 PM MST for Yavapai 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 counties it named.
The facts
- Issued
- Jul 31, 2019, 1:58 PM MST (20:58 UTC)
- Expired
- Jul 31, 2019, 5:00 PM MST
- In force
- 3 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 20:58 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, 9.0 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
- 326 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1091 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 43 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 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 31, 9:39 AM MST, 4 hours 19 minutes earlier.
Area forecast discussion, Jul 31, 9:39 AM MST, 4 hours 19 minutes before
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</html>In the hours before
Special weather statement, Jul 31, 10:37 AM MST, 3 hours 21 minutes before
Special Weather Statement National Weather Service Flagstaff AZ 1037 AM MST Wed Jul 31 2019 AZZ014-311800- Little Colorado River Valley in Apache County- 1037 AM MST Wed Jul 31 2019 ...SPECIAL WEATHER STATEMENT... At 1037 AM MST, Doppler radar was tracking a strong thunderstorm near Concho, or 26 miles northwest of Springerville, moving northeast at 5 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. This storm will remain over mainly rural areas of Apache County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3441 10948 3441 10956 3460 10960 3459 10937 TIME...MOT...LOC 1737Z 207DEG 5KT 3447 10949 41
Special weather statement, Jul 31, 12:35 PM MST, 1 hour 23 minutes before
Special Weather Statement National Weather Service Flagstaff AZ 1235 PM MST Wed Jul 31 2019 AZZ014-312000- Little Colorado River Valley in Apache County- 1235 PM MST Wed Jul 31 2019 ...SPECIAL WEATHER STATEMENT... At 1234 PM MST, Doppler radar was tracking a strong thunderstorm near 7 miles soouthwest of Hunt, or 29 miles northeast of Show Low, moving north at 20 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Hunt. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3447 10964 3453 10977 3481 10981 3470 10960 TIME...MOT...LOC 1934Z 179DEG 17KT 3456 10969 41
Special weather statement, Jul 31, 1:06 PM MST, 52 minutes before
Special Weather Statement National Weather Service Flagstaff AZ 106 PM MST Wed Jul 31 2019 AZZ014-312030- Little Colorado River Valley in Apache County- 106 PM MST Wed Jul 31 2019 ...SPECIAL WEATHER STATEMENT... At 105 PM MST, Doppler radar was tracking a strong thunderstorm south of Concho, moving north at 20 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Concho and Little Ortega Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3433 10955 3434 10967 3452 10970 3451 10952 TIME...MOT...LOC 2005Z 187DEG 17KT 3438 10960 41
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 5:34 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Jul 30, 6:51 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Jul 31, 10:37 AM MST | Special Weather Statement | FGZ | 23 min | |
| Jul 31, 12:35 PM MST | Special Weather Statement | FGZ | 25 min | |
| Jul 31, 1:06 PM MST | Special Weather Statement | FGZ | 24 min | |
| Jul 31, 2:05 PM MST | Special Weather Statement | FGZ | 25 min | |
| Jul 31, 2:19 PM MST | Areal Flood Advisory | FGZ | Apache | 3 hr |
| Jul 31, 4:36 PM MST | Special Weather Statement | FGZ | 24 min |
Nearby
Flash Flood Warnings in Arizona, 2019Every flash flood warning in 2019
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.