Alert archive / Arizona / Special Weather Statements in 2011
Special Weather Statement, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this special weather statement at Jul 9, 2011, 2:13 PM MST. It was in force for 32 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 9, 2011, 2:13 PM MST (21:13 UTC)
- Expired
- Jul 9, 2011, 2:45 PM MST
- In force
- 32 min
- Issued by
- NWS Flagstaff, AZ
The radar
The Flagstaff radar (KFSX), 129 km from the middle of the area, began a volume at 21:15 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, 9.2 hours before the alert went out and 53 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
- 293 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- -4 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 9, 9:25 AM MST, 4 hours 48 minutes earlier.
Area forecast discussion, Jul 9, 9:25 AM MST, 4 hours 48 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 925 AM MST SAT JUL 9 2011 .SYNOPSIS...MONSOON MOISTURE WILL REMAIN OVER NORTHERN ARIZONA THROUGH TUESDAY. EXPECT A CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY WITH NEAR NORMAL TEMPERATURES. ON WEDNESDAY...A LOW PRESSURE TROUGH DEEPENING ALONG THE WEST COAST IS EXPECTED TO BRING MUCH DRIER AIR INTO WESTERN ARIZONA AND LIMIT THUNDERSTORM CHANCES TO FAR EASTERN ARIZONA THROUGH FRIDAY. && DISCUSSION...SKIES ARE MOSTLY SUNNY ACROSS NORTHERN ARIZONA THIS MORNING. OVERNIGHT DEBRIS CLOUDINESS HAS DISSIPATED AND CUMULUS HAS ALREADY BEGUN TO FORM OVER HIGHER TERRAIN. FORECAST IS IN GOOD SHAPE...NO UPDATES NEEDED. && .PREVIOUS DISCUSSION /330 AM MST/...WATER VAPOR LOOP THIS MORNING SHOWS DEEP LAYERED MOISTURE OVER NORTHERN ARIZONA...AND THE 88D WITH A FEW CELLS ALREADY DEVELOPING ACROSS YAVAPAI COUNTY. FOR TODAY THROUGH MONDAY...PROGS OVERALL SHOW LITTLE CHANGE IN THE PATTERN WITH MOIST SOUTH SOUTHWEST FLOW ALOFT. AFTERNOON AND EVENING THUNDERSTORM CHANCES WERE BUMPED UP A FEW POINTS...ESPECIALLY ALONG THE MOGOLLON RIM AND WHITE MTNS. FROM TUESDAY THROUGH FRIDAY...MODELS ARE IN GOOD AGREEMENT AS THEY SHOW A LOW PRESSURE TROUGH DEEPENING ALONG THE WEST COAST. WINDS ALOFT VEER TO THE SOUTHWEST WITH DRY AND STABLE AIR WORKING INTO WESTERN AZ AS SOON AS TUESDAY AND SPREADING EASTWARD WEDNESDAY THROUGH FRIDAY. THUNDERSTORM CHANCES WERE REDUCED OR REMOVED ACCORDINGLY. THE FORECAST FROM WEDNESDAY THROUGH FRIDAY HAS THUNDERSTORM CHANCES LIMITED TO AREAS EAST OF A LINE FROM KAYENTA THROUGH PAYSON. AREAS WEST OF THIS LINE SHOULD SEE MOSTLY CLEAR SKIES AND SOME GENTLE SOUTHWEST AFTERNOON WINDS. && .AVIATION...FOR THE 18Z PACKAGE...SHOWERS AND THUNDERSTORMS WILL DEVELOP FIRST OVER THE HIGHER TERRAIN AND MOVE TOWARD THE NORTHEAST THROUGH THE AFTERNOON. ERRATIC WINDS AND MVFR/LCL IFR CONDITIONS SHOULD BE EXPECTED NEAR THE STRONGER STORMS. CONVECTIVE ACTIVITY DECREASING IN COVERAGE BY 03Z. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC..................HOWARD/DL AVIATION/FIRE WEATHER...RB FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF.
Hazardous weather outlook, Jul 9, 9:44 AM MST, 4 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 944 AM MST SAT JUL 9 2011 AZZ004>018-037>040-100700- KAIBAB PLATEAU-MARBLE AND GLEN CANYONS-GRAND CANYON COUNTRY- COCONINO PLATEAU-YAVAPAI COUNTY MOUNTAINS- NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY- CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- WESTERN MOGOLLON RIM-EASTERN MOGOLLON RIM-WHITE MOUNTAINS- NORTHERN GILA COUNTY-YAVAPAI COUNTY VALLEYS AND BASINS- OAK CREEK AND SYCAMORE CANYONS-BLACK MESA AREA- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- 944 AM MST SAT JUL 9 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL ARIZONA...NORTH CENTRAL ARIZONA...NORTHEAST ARIZONA AND WEST CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT EXPECT SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP OVER HIGHER TERRAIN BY LATE MORNING...SPREADING TO LOWER ELEVATIONS AS THE DAY PROGRESSES. STORMS WILL DRIFT SLOWLY FROM SOUTHWEST TO NORTHEAST. TODAY'S STORMS WILL PRODUCE SMALL HAIL AND LOCALLY HEAVY PRECIPITATION...CAUSING SOME ISOLATED NUISANCE FLOODING. CONVECTION SHOULD DISSIPATE FIRST OVER HIGHER TERRAIN AND LATER OVER LOWER ELEVATIONS...BEGINNING BY MID-LATE AFTERNOON. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUNDAY SHOULD BE A BIT MORE ACTIVE THAN TODAY. STARTING MONDAY...LOOK FOR GRADUAL DRYING TO CREEP EASTWARD ACROSS THE STATE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. HOWARD
In the hours before
Local storm report, Jul 9, 12:01 PM MST, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1201 PM MST SAT JUL 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1150 AM HEAVY RAIN 2 W NUTRIOSO 33.95N 109.24W
07/09/2011 M0.25 INCH APACHE AZ TRAINED SPOTTER
COLTER CREEK OUT OF ITS BANKS AND FLOODING YARDS. ALSO
REPORTED THAT ONE QUARTER INCH OF RAIN FELL IN 15
MINUTES.
&&
EVENT NUMBER FGZ1100176
NPLocal storm report, Jul 9, 1:09 PM MST, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
109 PM MST SAT JUL 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM FLASH FLOOD 2 E ALPINE 33.85N 109.10W
07/09/2011 APACHE AZ TRAINED SPOTTER
BURN AREA DEBRIS...WATER AND MUD FLOWING ACROSS
RESIDENTIAL PROPERTY AND THREATENING HOMES
&&
EVENT NUMBER FGZ1100177
RBSpecial weather statement, Jul 9, 2:13 PM MST, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 213 PM MST SAT JUL 9 2011 AZZ007-008-015-092145- YAVAPAI AZ-COCONINO AZ- 213 PM MST SAT JUL 9 2011 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA NORTH CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA UNTIL 245 PM MST AT 210 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 8 MILES EAST OF ASH FORK...MOVING NORTHEAST AT 10 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAINFALL. LOCATIONS IMPACTED INCLUDE... MILEPOST 155 ON I-40... MILEPOST 160 ON I-40... PRECAUTIONARY/PREPAREDNESS ACTIONS... && LAT...LON 3531 11242 3523 11221 3510 11235 3515 11249 TIME...MOT...LOC 2112Z 208DEG 8KT 3520 11235 MCS
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 10:48 AM MST | Areal Flood Advisory | FGZ | Apache | 108 min |
| Jul 9, 11:39 AM MST | Flash Flood Warning | FGZ | Apache | 3 hr |
| Jul 9, 12:31 PM MST | Flash Flood Warning | FGZ | Apache | 4 hr |
| Jul 9, 3:02 PM MST | Special Weather Statement | FGZ | Gila | 28 min |
| Jul 9, 3:21 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
Nearby
Special Weather Statements in Arizona, 2011Every special weather statement in 2011
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.