Alert archive / Arizona / Special Weather Statements in 2012
Special Weather Statement, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this special weather statement at Aug 6, 2012, 4:33 PM MST for Yavapai County, Arizona. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2012, 4:33 PM MST (23:33 UTC)
- Expired
- Aug 6, 2012, 5:15 PM MST
- In force
- 42 min
- Issued by
- NWS Flagstaff, AZ
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 167 km from the middle of the area, began a volume at 23:36 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, 11.6 hours before the alert went out and 114 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
- 129 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1499 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
129 WWUS85 KFGZ 062333 SPSFGZ SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 433 PM MST MON AUG 6 2012 AZZ008-037-070015- YAVAPAI AZ- 433 PM MST MON AUG 6 2012 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... WEST CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA UNTIL 515 PM MST AT 417 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A NEARLY STATIONARY THUNDERSTORM SOUTH OF WALNUT CREEK RANGER STATION...MOVING NORTH AT 2 MPH. LOCATIONS IMPACTED INCLUDE... WILLIAMSON VALLEY WASH... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE ADVISORY AREA...BE ON THE LOOK OUT FOR ELEVATED FLOW IN AREA WASHES ESPECIALLY WILLIAMSON VALLEY WASH TO WHERE THE WASH MEETS THE BIG CHINO WASH. IN ADDITION...VERY HEAVY RAINFALL MAY CAUSE TEMPORARY PONDING ON SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. IN HEAVY RAINFALL SLOW DOWN TO REDUCE THE RISK OF SLIDE OFF DUE TO MUDDY SURFACES. IN ADDITION...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING. IF STORMS APPROACH YOUR LOCATION OR YOU HEAR THUNDER...MOVE INSIDE A STURDY BUILDING OR AN ALL METAL VEHICLE. && LAT...LON 3491 11316 3508 11295 3486 11274 3474 11290 TIME...MOT...LOC 2327Z 174DEG 4KT 3486 11285 $$ TC
Nearby
Special Weather Statements in Arizona, 2012Every special weather statement in 2012
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.