Alert archive / Arizona / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 21, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 21, 2007, 2:21 PM MST for Gila County, Navajo County, Arizona. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2007, 2:21 PM MST (21:21 UTC)
- Expired
- Jul 21, 2007, 2:45 PM MST
- In force
- 24 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Counties, with a storm outline in the text
Counties Gila County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 86 km from the middle of the area, began a volume at 21:22 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 144 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
- 727 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1148 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 104 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 212121 SVRFGZ AZC007-017-212145- /O.NEW.KFGZ.SV.W.0021.070721T2121Z-070721T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 221 PM MST SAT JUL 21 2007 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA... SOUTHWESTERN NAVAJO COUNTY IN NORTHEAST ARIZONA... * UNTIL 245 PM MST * AT 213 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR CIBECUE...OR ABOUT 27 MILES SOUTHWEST OF SHOW LOW...AND MOVING WEST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL CENTRAL GILA COUNTY AT 240 PM MST RURAL SOUTHWESTERN NAVAJO COUNTY AT 240 PM MST LAT...LON 3396 11037 3414 11042 3406 11088 3385 11082 $$ DJO
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 11:48 AM MST | Severe Thunderstorm Warning | FGZ | Coconino | 14 min |
| Jul 21, 12:06 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Gila | 24 min |
| Jul 21, 12:09 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 36 min |
| Jul 21, 12:18 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 27 min |
| Jul 21, 12:48 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Yavapai | 27 min |
| Jul 21, 12:53 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 37 min |
| Jul 21, 1:20 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Yavapai | 40 min |
| Jul 21, 1:25 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 35 min |
| Jul 21, 1:59 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 31 min |
| Jul 21, 2:10 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 35 min |
| Jul 21, 4:10 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 35 min |
| Jul 21, 4:21 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 24 min |
| Jul 21, 4:43 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 47 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2007Every severe thunderstorm warning in 2007
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.