Alert archive / Arizona / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 33, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Aug 27, 2013, 3:04 PM MST for Apache County, Arizona. It was in force for 26 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
- Aug 27, 2013, 3:04 PM MST (22:04 UTC)
- Expired
- Aug 27, 2013, 3:30 PM MST
- In force
- 26 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
County Apache County, AZ
The radar
The Flagstaff radar (KFSX), 181 km from the middle of the area, began a volume at 22:05 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
Phoenix, AZ (KPSR), launched 12:00Z, 10.1 hours before the alert went out and 316 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
- 469 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 1801 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Aug 27, 9:55 AM MST, 5 hours 9 minutes earlier.
Area forecast discussion, Aug 27, 9:55 AM MST, 5 hours 9 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 955 AM MST TUE AUG 27 2013 .SYNOPSIS...DEEP MONSOON MOISTURE WILL REMAIN OVER ARIZONA THROUGH THE WEEKEND. SHOWERS AND THUNDERSTORMS ARE EXPECTED EACH DAY WITH STRONGER STORMS PRODUCING HEAVY RAIN AND FLASH FLOODING CONCERNS. A FLASH FLOOD WATCH HAS BEEN ISSUED TODAY FOR YAVAPAI AND WESTERN COCONINO COUNTY. && .DISCUSSION...A WET MONSOON WEATHER PATTERN WILL CONTINUE THROUGH THE UPCOMING LABOR DAY WEEKEND. EXPECT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS EACH DAY. THE MAIN THREATS THIS WEEK WILL BE FROM LOCALIZED FLASH FLOODING IN HEAVY RAIN SHOWERS AND LIGHTNING. A FLASH FLOOD WATCH HAS BEEN ISSUED TODAY FROM 11AM TO 11PM MST OVER YAVAPAI AND WESTERN COCONINO COUNTIES. DEEP MOISTURE WILL REMAIN ENTRENCHED ACROSS NORTHERN ARIZONA FOR THE NEXT SEVEN DAYS. FORECAST MODELS ARE PICKING UP AN INVERTED TROUGH EMBEDDED IN THE EASTERLY FLOW OVER CENTRAL MEXICO. THIS TROUGH WILL PUSH NORTHWESTWARD UP THE GULF OF CALIFORNIA THROUGH THE WEEK...CAUSING A STRONG SUBTROPICAL MOISTURE SURGE INTO ARIZONA STARING ON THURSDAY. THIS ADDITIONAL MOISTURE WILL LIKELY INCREASE OUR CHANCES FOR RAIN FROM FRIDAY THROUGH LABOR DAY. WE WILL LIKELY BE INCREASING OUR CHANCES FOR RAIN FOR THE UPCOMING WEEKEND IN THE AFTERNOON FORECAST PRODUCTS. THE SHORT TERM MORNING FORECAST GRIDS LOOK GOOD...NO UPDATES. && .AVIATION...FOR THE 18Z PACKAGE...LIGHT TO MODERATE RAINFALL REMAINS IN PLACE ALONG WESTERN YAVAPAI AND COCONINO COUNTIES. WITH DAYTIME HEATING...EXPECT RAINSHOWER AND THUNDERSTORM ACTIVITY TO INCREASE AFTER 18Z. THESE STORMS WILL BE MOST NUMEROUS ALONG AND WEST OF A KPGA-KFLG-KPAN LINE. EXPECT PREDOMINANTLY MVFR CONDITIONS WITH ISOLD IFR/LIFR WITHIN HEAVIER SHOWER ACTIVITY. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH TODAY 11 AM MST TIL 11 PM MST FOR YAVAPAI AND WESTERN COCONINO COUNTIES...AZ ZONES 004>008-015-037-038. && PUBLIC.........BOHLIN AVIATION.......RICKEY FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
Hazardous weather outlook, Aug 27, 5:50 AM MST, 9 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 550 AM MST TUE AUG 27 2013 AZZ004>018-037>040-280700- 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- 550 AM MST TUE AUG 27 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY A VERY MOIST AND UNSTABLE AIRMASS ACROSS WESTERN ARIZONA SHOULD PRODUCE THUNDERSTORMS CAPABLE OF DROPPING VERY HEAVY RAINFALL. A FLASH FLOOD WATCH IS IN EFFECT TODAY 11 AM MST TIL 11 PM MST FOR AREAS BASICALLY WEST OF A LINE FROM PAGE TO BLACK CANYON CITY. SEE PHXFFAFGZ FOR ADDITIONAL DETAILS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH SUNDAY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED WEDNESDAY...SOME WITH HEAVY RAINFALL. MONSOON MOISTURE CONTENT SHOULD INCREASE STARTING THURSDAY AND REMAIN ACROSS THE AREA THROUGH AT LEAST SUNDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Aug 27, 12:47 PM MST, 2 hours 17 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 |
|---|---|---|---|---|
| Aug 26, 5:36 PM MST | Flash Flood Warning | FGZ | Coconino | 6 hr |
| Aug 26, 6:31 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 29 min |
| Aug 26, 7:01 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 44 min |
| Aug 26, 9:20 PM MST | Flash Flood Warning | FGZ | Yavapai | 55 min |
| Aug 26, 10:18 PM MST | Flash Flood Warning | FGZ | Yavapai | 117 min |
| Aug 26, 11:29 PM MST | Areal Flood Advisory | FGZ | Coconino | 6 hr |
| Aug 27, 12:36 AM MST | Areal Flood Advisory | FGZ | Coconino | 4 hr |
| Aug 27, 5:40 AM MST | Flash Flood Watch | FGZ | Coconino, Yavapai | 15 hr |
| Aug 27, 12:39 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 36 min |
| Aug 27, 1:18 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 27 min |
| Aug 27, 1:48 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 27 min |
| Aug 27, 3:26 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Yavapai | 34 min |
| Aug 27, 3:46 PM MST | Severe Thunderstorm Warning | FGZ | Apache | 29 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2013Every severe thunderstorm warning in 2013
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.