Alert archive / Arizona / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 5, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jun 22, 2001, 2:20 PM MST for Coconino County, Arizona. It was in force for 30 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 22, 2001, 2:20 PM MST (21:20 UTC)
- Expired
- Jun 22, 2001, 2:50 PM MST
- In force
- 30 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Coconino County, AZ
The radar
The Flagstaff radar (KFSX), 150 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 68 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
- 107 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 2096 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 90 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 222123 SVRFLG AZC005-222150- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 220 PM MST FRI JUN 22 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL COCONINO COUNTY IN ARIZONA * UNTIL 250 PM MST * AT 220 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SOUTH CENTRAL COCONINO COUNTY ABOUT 22 MILES WEST OF FLAGSTAFF...THE STORM IS DRIFTING SLOWLY SOUTHWEST. * THE SEVERE THUNDERSTORM WILL AFFECT OR PASS CLOSE TO... RURAL SOUTHERN COCONINO COUNTY AT 230 PM MST VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 351K4 11217 3501 11201 3517 11189 3527 11206 $$ JJ
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 22, 9:15 AM MST, 5 hours 5 minutes earlier.
Area forecast discussion, Jun 22, 9:15 AM MST, 5 hours 5 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 915 AM MST FRI JUN 22 2001 SYNOPSIS...LITTLE CHANGE IN THE WEATHER PATTERN IS EXPECTED INTO THE COMING WEEKEND. HIGH PRESSURE ALOFT WILL KEEP MOISTURE TRAPPED OVER THE STATE. AFTERNOON SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE FOR SEVERAL DAYS...ESPECIALLY ALONG AND SOUTH OF THE MOGOLLON RIM AND WHITE MOUNTAINS. TEMPERATURES ARE EXPECTED TO REMAIN AT OR NEAR NORMAL LEVELS. DISCUSSION...MOISTURE VALUES AGAIN HAVE INCREASED STATEWIDE YET AGAIN IN THE WAKE OF THURSDAYS CONVECTION. IMPRESSIVE CAPE VALUES PRESENT ALONG THE RIM ZONES AND YAVAPAI COUNTY...IN ADDITION TO A WELL DEFINED THETA-E RIDGE. CONVECTION WILL NO DOUBT FIRE ONCE AGAIN TODAY...ALTHOUGH AREAL COVERAGE AND INTENSITY LIKELY TO BE UP A FEW NOTCHES FROM THURSDAY. THESE TRENDS ARE WELL REPRESENTED IN THE CURRENT ZONE PACKAGE. NO UPDATES ARE NEEDED AT THIS TIME. PETERSON. .FGZ...NONE.
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:28 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Yavapai | 32 min |
| Jun 22, 2:28 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 32 min |
| Jun 22, 2:53 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 37 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2001Every severe thunderstorm warning in 2001
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.