Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 6, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jun 29, 2000, 1:58 PM MST for Yavapai County, Arizona. 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 29, 2000, 1:58 PM MST (20:58 UTC)
- Expired
- Jun 29, 2000, 2:30 PM MST
- In force
- 32 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 21:00 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 1:00 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.0 hours before the alert went out and 109 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1922 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 60 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 292103 SVRFLG AZC025-292130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 158 PM MST THU JUN 29 2000 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL YAVAPAI COUNTY IN ARIZONA * UNTIL 230 PM MST * AT 158 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER WILHOIT...OR ABOUT 12 MILES SOUTHWEST OF PRESCOTT. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL BE NEAR... 7 MILES NORTH OF WALNUT GROVE AT 230 PM MST DAMAGING WINDS TO 60 MPH...LARGE HAIL...AND LOCALLY HEAVY RAIN ARE LIKELY. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE INv FLAGSTAFF. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MST THURSDAY AFTERNOON FOR ARIZONA. LAT...LON 3460 11248 3454 11275 3425 11266 3431 11237
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 Jun 29, 9:00 AM MST, 4 hours 58 minutes earlier.
Area forecast discussion, Jun 29, 9:00 AM MST, 4 hours 58 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 900 AM MST THU JUN 29 2000 SYNOPSIS...THE ATMOSPHERE OVER ARIZONA WILL REMAIN MOISTURE THROUGH THE WEEKEND AS HIGH PRESSURE COVERS THE SOUTHWEST. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED EACH AFTERNOON FOR THE NEXT SEVERAL DAYS. THERE WILL BE LITTLE CHANGE IN DAILY TEMPERATURES. DISCUSSION...ZONES IN GOOD SHAPE...NO UPDATE PLANNED. THERMAL LOW STILL LOCATED OVER WESTERN AZ WITH PROGS CONTINUING TO BUILD UPPER RIDGE FROM THE EAST. LOW LEVEL MOISTURE REMAINS IN PLACE WITH SFC DEWPOINTS IN THE 50S AND 60S ACROSS THE STATE THIS MORNING AND PW VALUES IN THE 3/4 INCH RANGE OVER CWA. 12Z FGZ SOUNDING SHOWING MID LEVEL WINDS STILL FROM AN EASTERLY DIRECTION...THIS TO ENHANCE UPSLOPE FLOW ALONG THE RIM AND WHITES. EXPECT THE MOST ACTIVITY OVER THE EASTERN SECTIONS OF CWA TODAY...ESPECIALLY THE SE PORTION. FOCUS FOR ACTIVITY IS WEAK COLD FRONT LAYING ACROSS SE AZ ATTM. ALSO SATELLITE IMAGERY AND 12Z MODEL RUNS INDICATE CIRCULATION CENTER ALSO OVER SE AZ. THIS PROGGED TO MOVE NE INTO CENTRAL N.M. DURING THE DAY. ISOLATED SEVERE POSSIBLE OVER RIM AND WHITES WITH HEAVY +RAINFALL THE MAJOR THREAT. DF .FGZ...NONE.
In the hours before
Special weather statement, Jun 29, 9:45 AM MST, 4 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 945 AM MST THU JUN 29 2000 ...HEAVY RAIN PRODUCING THUNDERSTORMS POSSIBLE TODAY...MAINLY EAST OF FLAGSTAFF... SPOTTER REPORTS OF HEAVY RAINFALL REQUESTED. THE ATMOSPHERE OVER NORTHERN ARIZONA REMAINS MOIST AND UNSTABLE. SHOWERS AND THUNDERSTORMS WILL DEVELOP BY NOON. THE MOST INTENSE ACTIVITY IS EXPECTED EAST OF FLAGSTAFF. THERE WILL BE A THREAT OF HEAVY RAIN WITH SOME OF THE THUNDERSTORMS. THE BEST CHANCE OF THIS WILL BE OVER THE EASTERN MOGOLLON RIM...THE WHITE MOUNTAINS...AND PORTIONS OF THE NORTHEASTERN PLATEAUS. THE HAZARDOUS WEATHER OUTLOOK GIVES PRELIMINARY INFORMATION FOR THE POSSIBILITY OF WEATHER THAT COULD BECOME SEVERE...DAMAGING WINDS IN EXCESS OF 57 MPH...HAIL 3/4 INCH IN DIAMETER OR LARGER...AND HEAVY RAINFALL THAT COULD CAUSE FLOODING OR RUNNING WASHES. WHEN HAZARDOUS WEATHER BEGINS...IMPORTANT LIFE SAVING INFORMATION WILL BE PROVIDED IN SHORT TERM FORECASTS...SEVERE WEATHER AND FLOOD WARNINGS ...AND FOLLOW-UP STATEMENTS. DF
Nearby
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; radar from the NEXRAD Level II archive.