Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 3, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jun 20, 2000, 2:26 PM MST for Gila County, Arizona. It was in force for 49 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
- Jun 20, 2000, 2:26 PM MST (21:26 UTC)
- Expired
- Jun 20, 2000, 3:15 PM MST
- In force
- 49 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Gila County, AZ
The radar
The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 21:27 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, 9.4 hours before the alert went out and 115 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
- 2346 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1314 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
016 WUUS55 KFGZ 202127 SVRFLG AZC007-202215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 226 PM MST TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN AND NORTH CENTRAL GILA COUNTY IN CENTRAL ARIZONA * UNTIL 315 PM MST * AT 224 PM MST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF PAYSON... MOVING WEST AT 10 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... STAR VALLEY AT 240 PM MST DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS PEREZ N
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 20, 9:00 AM MST, 5 hours 26 minutes earlier.
Area forecast discussion, Jun 20, 9:00 AM MST, 5 hours 26 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 900 AM MST TUE JUN 20 2000 SYNOPSIS...AFTERNOON AND EVENING SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE THROUGH MUCH OF THE WEEK. MOST ACTIVITY WILL BE SOUTH AND EAST OF FLAGSTAFF TUESDAY...WITH MOISTURE GRADUALLY PUSHING BACK WESTWARD LATER WEDNESDAY THROUGH FRIDAY. TEMPERATURES WILL REMAIN NEAR SEASONABLE NORMALS. DISCUSSION...SHALLOW LAYER OF LOW LEVEL MOISTURE REMAINS OVER THE CWA THIS MORNING WITH SFC DEW POINT VALUES GENERALLY IN THE 40S. WEAK WESTERLY FLOW ALOFT HAS DRIED MID TO UPPER LEVELS ONLY SLIGHTLY AS MORNING 12Z FGZ SOUNDING INDICATING LITTLE CHANGE FROM PRVS 24 HOURS. 12Z ETA AND NGM MODEL BOTH INDICATED THAT SEVERAL WEAK DISTURBANCES WILL WORK NW...IN CONJUNCTION WITH LOW LEVEL MOISTURE OVER SRN AZ AND NRN AZ OVER THE NEXT 48 HOURS AS 5H RIDGE BECOMES MORE AMPLIFIED OVER THE SOUTHWEST UNITED STATES. CURRENT FCST HAS THIS TREND COVERED WELL WITH ISOLD POPS THROUGH THE PD. LATEST SAT VIS IMAGERY INDICATED SOME CU ALREADY FIRING OVER THE WHITES. FOR THE 1ST PD...ISOLD POPS OVER THE HIGHER TERRAIN...WITH SCT POPS IN THE EASTERN MOUNTAINS LOOKING GOOD. PLAN NO UPDATES. MCGRATH .FGZ...NONE.
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.