Alert archive / Arizona / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 290, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Oct 9, 2006, 1:51 PM MDT for Navajo County, Arizona. It was in force for 24 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 9, 2006, 1:51 PM MDT (19:51 UTC)
- Expired
- Oct 9, 2006, 2:15 PM MDT
- In force
- 24 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Counties, with a storm outline in the text
County Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 122 km from the middle of the area, began a volume at 19:52 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 9, 9:05 AM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 7.9 hours before the alert went out and 136 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
- 112 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 9, 10:45 AM MDT, 3 hours 6 minutes earlier.
Area forecast discussion, Oct 9, 10:45 AM MDT, 3 hours 6 minutes before
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</html>Hazardous weather outlook, Oct 9, 10:15 AM MDT, 3 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 915 AM MST MON OCT 9 2006 AZZ004>018-037>040-100700- WESTERN MOGOLLON RIM-GRAND CANYON COUNTRY-YAVAPAI COUNTY MOUNTAINS- YAVAPAI COUNTY VALLEYS AND BASINS-OAK CREEK AND SYCAMORE CANYONS- MARBLE AND GLEN CANYONS-KAIBAB PLATEAU-COCONINO PLATEAU- NORTHEAST PLATEAU AND MESAS HWY 264 NORTHWARD- NORTHEAST PLATEAU AND MESAS SOUTH OF HWY 264- CHINLE VALLEY-CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- BLACK MESA AREA-LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- EASTERN MOGOLLON RIM-WHITE MOUNTAINS-NORTHERN GILA COUNTY- 915 AM MST MON OCT 9 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY A STORM SYSTEM MOVING ACROSS NORTHERN ARIZONA TODAY WILL PRODUCE NUMEROUS THUNDERSTORMS OVER NORTHERN GILA COUNTY EASTWARD THROUGH THE NEW MEXICO BORDER AND NORTHWARD THROUGH THE LITTLE COLORADO RIVER VALLEY. SOME OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL IN EXCESS OF 3/4 INCH DIAMETER AND STRONG WIND GUSTS UP TO 70 MPH. A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHERN GILA COUNTY...SOUTHERN NAVAJO COUNTY...AND SOUTHERN APACHE COUNTY. SEE THE SEVERE THUNDERSTORM WATCH...AVAILABLE AT WWW.SPC.NOAA.GOV FOR DETAILS. ELSEWHERE IN NORTHERN ARIZONA...SCATTERED THUNDERSTORMS ARE EXPECTED...PRODUCING DANGEROUS LIGHTNING...BUT NOT EXPECTED TO PRODUCE SEVERE WIND GUSTS OR HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ANOTHER STORM SYSTEM IS EXPECTED TO MOVE THROUGH ARIZONA FRIDAY OR SATURDAY...PRODUCING MORE CHANCES FOR SHOWERS AND THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 11:03 PM MDT | Flash Flood Warning | FGZ | Coconino | |
| Oct 9, 1:25 PM MDT | Severe Thunderstorm Warning | FGZ | Gila | 35 min |
| Oct 9, 2:12 PM MDT | Severe Thunderstorm Warning | FGZ | Navajo | 33 min |
| Oct 9, 5:09 PM MDT | Flash Flood Warning | FGZ | Coconino |
Nearby
Severe Thunderstorm Warnings in Arizona, 2006Every severe thunderstorm warning in 2006
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.