Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 29, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Aug 2, 2000, 5:19 PM MST for Gila 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 2, 2000, 5:19 PM MST (00:19 UTC)
- Expired
- Aug 2, 2000, 5:45 PM MST
- In force
- 26 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Gila County, AZ
The nearest sounding before it
Phoenix, AZ (KPSR), launched 00:00Z, 0.3 hours before the alert went out and 95 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
- 122 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 3267 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KFGZ 030021 SVRFLG AZC007-030045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 519 PM MST WED AUG 2 2000 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL GILA COUNTY IN ARIZONA * UNTIL 545 PM MST * AT 519 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTH CENTRAL GILA COUNTY...OR ABOUT 36 MILES SOUTHEAST OF PAYSON...MOVING WEST AT 25 MPH. LARGE HAIL AND STRONG GUSTY WINDS ARE POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...SEEK SHELTER UNTIL THE STORM PASSES. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN FLAGSTAFF. LAT...LON 3378 11084 3395 11088 3388 11137 3366 11131
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 2, 2:30 PM MST, 2 hours 49 minutes earlier.
Area forecast discussion, Aug 2, 2:30 PM MST, 2 hours 49 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 230 PM MST WED AUG 2 2000 SYNOPSIS...HIGH PRESSURE OVER THE WESTERN UNITED STATES WILL MOVE SLOWLY TO THE EAST AND SOUTHEAST THROUGH THE WEEKEND. THIS WILL RESULT IN WINDS ACROSS NORTHERN ARIZONA FROM THE EAST...SHIFTING TO THE SOUTH BY THE WEEKEND. ADDITIONAL MOISTURE WILL CONTINUE TO FILTER INTO NORTHERN ARIZONA. THE CHANCE OF AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE WEEKEND. DISCUSSION...12Z MODELS IN PRETTY GOOD AGREEMENT IN DRAGGING MAIN ANTICYLCLONE OVER THE GREAT BASIN INTO THE FOUR CORNERS AREA BY THE WEEKEND. EASTERLY FLOW AT THE MID LEVELS TO BECOME MORE SOUTHERLY WITH TIME. MAIN FCST PROBLEM WILL BE DETERMINING HOW MUCH MOISTURE WILL CONT TO BE PULLED INTO THE AREA OVER THE NEXT FEW DAYS. WITHOUT ANY REAL DRYING MECHANISM IN SITE...ALONG WITH THE DEVELOPMENT OF MORE FAVORABLE SOUTHERLY FLOW...WE SHOULD SEE A CONTINUATION OF AFT SHOWER AND THUNDERSTORM DEVELOPMENT OVER THE HIGHER TERRAIN THROUGH REMAINING FCST PD. IN THE SHORT TERM...STORMS HAVE BEEN CONFINED MAINLY TO THE MOGOLLON RIM AND THE WHITE MOUNTAINS...WITH ISOLATED CELLS OVER FAR NE AZ AND YAVAPAI CNTY. IN THE EXTENDED...FOUR CORNERS HIGH TO REMAIN IN PLACE WITH WEAK GRADIENTS OVER THE CWA...AS 5H TROUGH DIGS ALONG THE WEST COAST. THIS SHOULD ALLOW MOISTURE TO CONTINUE TO FLOW INTO THE AREA. MCGRATH .FGZ...NONE
In the hours before
Local storm report, Aug 2, 12:29 PM MST, 4 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF ARIZONA
1229 PM MST WED AUG 2 2000
TIME (MST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
735 PM Camp Verde AZ WIND DAMAGE
08/01/00 Yavapai Several roofs damaged
735 PM Camp Verde AZ WIND DAMAGE
08/01/00 Yavapai Power lines down 60+ mph winds
735 PM Lake Montezuma AZ WIND DAMAGE
08/01/00 Yavapai Power lines down 60+ mph winds
730 PM Camp Verde AZ THUNDERSTORM
08/01/00 Yavapai Funnel Cloud
830 PM Cottonwood AZ WIND DAMAGE
08/01/00 Yavapai Several roofs damaged
830 PM Cottonwood AZ WIND DAMAGE
08/01/00 Yavapai Patio deck torn off
830 PM Cottonwood AZ TORNADO
08/01/00 Yavapai Funnel cloud approximate 1/2 mile
SE of Cottonwod Airport--may have
intersected higher terrain
830 PM Cottonwood AZ WIND DAMAGE
08/01/00 Yavapai Roof torn off
855 PM Clarksdale AZ 0.75 INCH HAIL
08/01/00 YavapaiLocal storm report, Aug 2, 12:50 PM MST, 4 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE FLAGSTAFF ARIZONA
1250 PM MST WED AUG 2 2000
TIME (MST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
735 PM CAMP VERDE AZ WIND DAMAGE
08/01/00 YAVAPAI SEVERAL ROOFS DAMAGED
735 PM CAMP VERDE AZ WIND DAMAGE
08/01/00 YAVAPAI POWER LINES DOWN 60+ MPH WINDS
735 PM LAKE MONTEZUMA AZ WIND DAMAGE
08/01/00 YAVAPAI POWER LINES DOWN 60+ MPH WINDS
730 PM CAMP VERDE AZ THUNDERSTORM
08/01/00 YAVAPAI FUNNEL CLOUD
830 PM COTTONWOOD AZ WIND DAMAGE
08/01/00 YAVAPAI SEVERAL ROOFS DAMAGED
830 PM COTTONWOOD AZ WIND DAMAGE
08/01/00 YAVAPAI PATIO DECK TORN OFF
830 PM COTTONWOOD AZ TORNADO
08/01/00 YAVAPAI FUNNEL CLOUD APPROXIMATE 1/2 MILE
SE OF COTTONWOD AIRPORT--APPEARED
TO INTERSECT HIGHER TERRAIN
830 PM COTTONWOOD AZ WIND DAMAGE
08/01/00 YAVAPAI ROOF TORN OFF
855 PM CLARKSDALE AZ 0.75 INCH HAIL
08/01/00 YAVAPAINearby
Severe Thunderstorm Warnings in Arizona, 2000Every severe thunderstorm warning in 2000
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.