Alert archive / Arizona / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 142, NWS Flagstaff, AZ

July 15, 2006Coconino County, Yavapai County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 15, 2006, 2:16 PM MST for Coconino County, Yavapai County, Arizona. It was in force for 29 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
Jul 15, 2006, 2:16 PM MST (21:16 UTC)
Expired
Jul 15, 2006, 2:45 PM MST
In force
29 min
Issued by
NWS Flagstaff, AZ
Area
Counties, with a storm outline in the text

Counties Coconino County, AZ, Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 113 km from the middle of the area, began a volume at 21:18 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 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 Jul 15, 10:45 AM MST, 3 hours 31 minutes earlier.

Area forecast discussion, Jul 15, 10:45 AM MST, 3 hours 31 minutes before
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Hazardous weather outlook, Jul 15, 10:00 AM MST, 4 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1000 AM MST SAT JUL 15 2006

AZZ004>018-037>040-160700-
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-
1000 AM MST SAT JUL 15 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN
GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA.

.DAY ONE...TODAY

LOW LEVEL MOISTURE HAS BEEN ON THE INCREASE OVERNIGHT...MAINLY ALONG
THE MOGOLLON RIM...WHITE MOUNTAINS...NORTHERN GILA AND YAVAPAI
COUNTIES. THE HIGH PRESSURE RIDGE OVER THE AREA IS FORECAST TO BE
THE STRONGEST ACROSS THE AREA TODAY. THE HIGH PRESSURE WILL TEND TO
SUPPRESS THUNDERSTORM DEVELOPMENT NORTH OF THE MOGOLLON RIM THIS
AFTERNOON AND EVENING. WE ARE EXPECTING WIDELY SCATTERED
THUNDERSTORM TO BEGIN TO DEVELOP ALONG THE HIGHER TERRAIN OF THE
WHITE MOUNTAINS...MOGOLLON RIM...AND YAVAPAI COUNTY MOUNTAINS BY
THIS AFTERNOON...AND THEN MOVE SOUTHWEST INTO NORTHERN GILA AND
YAVAPAI COUNTY VALLEYS. THE MAIN THREAT TODAY WOULD BE ISOLATED
STRONG WIND GUSTS FROM THUNDERSTORMS OUTFLOW.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS ARE FORECAST TO INCREASE FROM THE MOGOLLON RIM SOUTH ON
SUNDAY...AS THE HIGH PRESSURE BEGINS TO WEAKEN ITS HOLD ACROSS THE
AREA. THEN FOR MONDAY AND THE REST OF THE WEEK THUNDERSTORMS WILL
INCREASE BACK INTO THE 40 TO 60 PERCENT RANGE WITH POSSIBILITY
ISOLATED HEAVY RAIN THAT COULD CAUSE FLASH FLOODING AND ISOLATED
HAIL EVENTS.

.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.

IssuedProductOfficeCountiesLasted
Jul 15, 2:22 PM MSTSevere Thunderstorm WarningFGZCoconino23 min
Jul 15, 2:42 PM MSTSevere Thunderstorm WarningFGZYavapai33 min
Jul 15, 3:09 PM MSTSevere Thunderstorm WarningFGZYavapai36 min
Jul 15, 4:07 PM MSTSevere Thunderstorm WarningFGZYavapai23 min

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; radar from the NEXRAD Level II archive.