Alert archive / Arizona / Red Flag Warnings in 2022

Red Flag Warning 12, NWS Flagstaff, AZ

May 10, 20225 counties in Arizona

NWS Flagstaff, AZ issued this red flag warning at May 10, 2022, 2:51 AM MST for 5 counties in Arizona. It took effect at May 11, 2022, 10:00 AM MST. It was in force for 9 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 10, 2022, 2:51 AM MST (09:51 UTC)
In effect from: May 11, 2022, 10:00 AM MST
Expired: May 11, 2022, 7:00 PM MST
In force: 9 hr
Issued by: NWS Flagstaff, AZ

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 09:55 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.

What was reported inside it

Time	Report	Where	Remark
May 11, 2:15 PM MST	NON-TSTM WND GST 59	1 N Tuba City, AZ	MESONET STATION AV459 TUBA CITY.
May 11, 5:19 PM MST	NON-TSTM WND GST 61	4 N House Rock, AZ	MESONET STATION QFSA3 FOUR SPRINGS W. VERMILLION CLIFFS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 9.9 hours before the alert went out and 316 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4237 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag 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 red flag warning went out at May 9, 8:40 PM MST, 6 hours 11 minutes earlier.

Area forecast discussion, May 9, 8:40 PM MST, 6 hours 11 minutes before

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The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 10, 2:43 AM MST	Wind Advisory	FGZ	Apache, Coconino, Navajo, Yavapai	40 hr

Nearby

Red Flag Warnings in Arizona, 2022 Every red flag warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.