Alert archive / Arizona / Flash Flood Warnings in 2018
Flash Flood Warning 113, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Aug 23, 2018, 2:42 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 outline as issued.
The facts
- Issued
- Aug 23, 2018, 2:42 PM MST (21:42 UTC)
- Expired
- Aug 23, 2018, 5:45 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), 175 km from the middle of the area, began a volume at 21:42 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, 9.7 hours before the alert went out and 140 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1401 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
959 WGUS55 KFGZ 232142 FFWFGZ AZC025-240045- /O.NEW.KFGZ.FF.W.0113.180823T2142Z-180824T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Flagstaff AZ 242 PM MST THU AUG 23 2018 The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... Yavapai County in west central Arizona... * Until 545 PM MST * At 240 PM MST, National Weather Service Doppler radar indicated slow moving thunderstorms near Bagdad, producing heavy rain. Up to one inch of rain has already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Bagdad. This includes the following streams and drainages...Quail Spring Wash...Sycamore Creek...Cottonwood Creek...Boulder Creek...Little Sycamore Wash...Copper Creek...Tank Wash...Iron Spring Wash...Butte Creek...Big Shipp Wash...Little Shipp Wash...Bridle Creek...Santa Maria River...Kirkland Creek and Mineral Creek. This includes the following highways... State Route 97 between mile markers 161 and 166. State Route 96 between mile markers 0 and 11. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3463 11301 3447 11300 3447 11327 3462 11325 $$
1 follow-up statement
384 WGUS75 KFGZ 240047 FFSFGZ Flash Flood Statement National Weather Service Flagstaff AZ 547 PM MST THU AUG 23 2018 AZC025-240052- /O.EXP.KFGZ.FF.W.0113.000000T0000Z-180824T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Yavapai- 547 PM MST THU AUG 23 2018 ...THE FLASH FLOOD WARNING FOR YAVAPAI COUNTY WILL EXPIRE AT 545 PM MST... At 540 PM MST, National Weather Service Doppler radar indicated additional showers and thunderstorms moving toward Bagdad from the west. Earlier storms ended several hours ago and only minor flooding was reported. Area creeks and washes are likely running higher than normal and additional rain will keep levels higher than normal into the evening. However, the threat for Flash Flooding has ended and the Flash Flood Warning will be allowed to expire. Please continue to heed any remaining road closures. LAT...LON 3463 11301 3447 11300 3447 11327 3462 11325 $$
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 6:56 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 22, 6:57 PM MST | Flash Flood Warning | FGZ | Yavapai | 9 hr |
| Aug 22, 8:03 PM MST | Flash Flood Warning | FGZ | Yavapai | 6 hr |
| Aug 22, 8:41 PM MST | Flash Flood Warning | FGZ | Gila | 104 min |
| Aug 23, 12:57 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 3 hr |
| Aug 23, 2:39 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 36 min |
| Aug 23, 3:58 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Aug 23, 4:05 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2018Every flash flood warning in 2018
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.