Alert archive / Arizona / Snow Advisories in 2008
Snow Advisory 4, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this snow advisory at Feb 13, 2008, 2:56 PM MST for 5 counties in Arizona. It took effect at Feb 13, 2008, 10:00 PM MST. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Feb 13, 2008, 2:56 PM MST (21:56 UTC)
- In effect from
- Feb 13, 2008, 10:00 PM MST
- Expired
- Feb 14, 2008, 3:17 PM MST
- In force
- 17 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 22:01 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, 9.9 hours before the alert went out and 78 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
- 2543 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this snow advisory 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 snow advisory went out at Feb 13, 2:30 PM MST, 26 minutes earlier.
Area forecast discussion, Feb 13, 2:30 PM MST, 26 minutes before
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</html>Hazardous weather outlook, Feb 13, 6:00 AM MST, 8 hours 56 minutes before
NATIONAL WEATHER SERVICE FLAGSTAFF AZ 600 AM MST WED FEB 13 2008 AZZ004>018-037>040-140700- 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- 600 AM MST WED FEB 13 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY AN APPROACHING PACIFIC STORM SYSTEM WILL BRING INCREASINGLY STRONG SOUTHWESTERLY WINDS BEGINNING THIS AFTERNOON...WITH GUSTS UP TO 40 MPH POSSIBLE FROM FLAGSTAFF NORTHWESTWARD. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A VIGOROUS PACIFIC STORM SYSTEM WILL MOVE INTO THE STATE THURSDAY...SPREADING RAIN...SNOW...AND MUCH COLDER TEMPERATURES ACROSS THE REGION. THE STORM SYSTEM IS EXPECTED TO AFFECT NORTHERN ARIZONA UNTIL FRIDAY. MOST AREAS ABOVE 6000 FEET FROM THE MOGOLLON RIM NORTHWARD WILL LIKELY RECIEVE AROUND 3 TO 5 INCHES OF SNOWFALL...WITH LOCALLY UP TO AROUND 8 INCHES POSSIBLE. BELOW 6000 FEET...ACCUMULATIONS GENERALLY LESS THAN 2 INCHES ARE EXPECTED. WINDY CONDITIONS WILL CAUSE SOME BLOWING AND DRIFTING OF SNOW...AS WELL AS LOW WIND CHILL TEMPERATURES.
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 12:45 PM MST | Wind Advisory | FGZ | Apache, Coconino, Navajo, Yavapai | 27 hr |
| Feb 13, 2:56 PM MST | Winter Storm Watch | FGZ | Apache, Coconino, Gila, Navajo | 24 hr |
Nearby
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.