Alert archive / Arizona / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 97, NWS Flagstaff, AZ

October 18, 2005Coconino County, Gila County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Oct 18, 2005, 7:27 AM MST for Coconino County, Gila County, Arizona. It was in force for 33 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: Oct 18, 2005, 7:27 AM MST (14:27 UTC)
Expired: Oct 18, 2005, 8:00 AM MST
In force: 33 min
Issued by: NWS Flagstaff, AZ
Area: Counties, with a storm outline in the text

Counties Coconino County, AZ, Gila County, AZ

The radar

The Flagstaff radar (KFSX), 29 km from the middle of the area, began a volume at 14:29 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 2.5 hours before the alert went out and 65 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: 70 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 83 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 severe thunderstorm 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 severe thunderstorm warning went out at Oct 18, 3:45 AM MST, 3 hours 42 minutes earlier.

Area forecast discussion, Oct 18, 3:45 AM MST, 3 hours 42 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
Oct 18, 12:45 AM MST	Severe Thunderstorm Warning	FGZ	Yavapai	30 min
Oct 18, 1:15 AM MST	Severe Thunderstorm Warning	FGZ	Yavapai	30 min
Oct 18, 1:47 AM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	28 min
Oct 18, 2:11 AM MST	Severe Thunderstorm Warning	FGZ	Yavapai	34 min
Oct 18, 7:05 AM MST	Severe Thunderstorm Warning	FGZ	Gila, Yavapai	25 min
Oct 18, 7:28 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	13 min
Oct 18, 10:05 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	15 min
Oct 18, 10:31 AM MST	Severe Thunderstorm Warning	FGZ	Coconino, Navajo	44 min
Oct 18, 11:46 AM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	26 min
Oct 18, 12:00 PM MST	Tornado Warning	FGZ	Coconino	11 min
Oct 18, 1:26 PM MST	Severe Thunderstorm Warning	FGZ	Apache	42 min
Oct 18, 1:36 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	26 min
Oct 18, 2:35 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	38 min
Oct 18, 3:41 PM MST	Severe Thunderstorm Warning	FGZ	Apache	25 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2005 Every severe thunderstorm warning in 2005

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.