Alert archive / Arizona / Special Weather Statements in 2012
Special Weather Statement, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this special weather statement at Jul 28, 2012, 3:49 PM MST. It was in force for 41 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
- Jul 28, 2012, 3:49 PM MST (22:49 UTC)
- Expired
- Jul 28, 2012, 4:30 PM MST
- In force
- 41 min
- Issued by
- NWS Flagstaff, AZ
The radar
The Flagstaff radar (KFSX), 48 km from the middle of the area, began a volume at 22:52 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 nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 10.8 hours before the alert went out and 311 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
- 34 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1726 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 28, 3:20 PM MST, 29 minutes earlier.
Area forecast discussion, Jul 28, 3:20 PM MST, 29 minutes before
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</html>Hazardous weather outlook, Jul 28, 3:30 AM MST, 12 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 330 AM MST SAT JUL 28 2012 AZZ004>018-037>040-290700- 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- 330 AM MST SAT JUL 28 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY INCREASING MOISTURE AND A MORE UNSTABLE AIRMASS WILL ARRIVE OVER THE REGION TODAY. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED BY LATE MORNING INTO THE AFTERNOON...ESPECIALLY ALONG AND JUST SOUTH OF THE MOGOLLON RIM AND WHITE MOUNTAINS. STORMS WILL ALSO SPREAD INTO WESTERN COCONINO COUNTY AND THE KAIBAB PLATEAU BY EARLY AFTERNOON. SLIGHTLY LESS COVERAGE WILL BE FOUND NORTHEAST OF THE LITTLE COLORADO RIVER VALLEY ...TOWARD THE FOUR CORNERS. THE BEST CHANCE OF HEAVY RAIN PRODUCING STORMS WILL BE OVER EASTERN YAVAPAI COUNTY...AS WELL AS NORTHERN GILA AND SOUTHERN COCONINO COUNTIES. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY MOIST SOUTHEAST FLOW WILL BRING A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY. THE THREAT OF FLOODING...DUE TO PERSISTENT AND NUMEROUS SHOWERS AND THUNDERSTORMS...WILL BE ON THE INCREASE THROUGH THE EARLY PART OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Jul 28, 3:49 PM MST, 0 minutes before
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</html>The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:40 PM MST | Areal Flood Advisory | FGZ | Gila | 2 hr |
| Jul 28, 11:18 AM MST | Flash Flood Warning | FGZ | Navajo | 87 min |
| Jul 28, 12:36 PM MST | Areal Flood Advisory | FGZ | Navajo | 75 min |
| Jul 28, 3:03 PM MST | Areal Flood Advisory | FGZ | Apache | 117 min |
| Jul 28, 4:42 PM MST | Special Weather Statement | FGZ | 48 min |
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.