Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 13, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 22, 2012, 7:21 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 22, 2012, 7:21 PM MST (02:21 UTC)
- Expired
- Jul 22, 2012, 7:45 PM MST
- In force
- 24 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
Counties Gila County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 105 km from the middle of the area, began a volume at 02:21 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 00:00Z, 2.4 hours before the alert went out and 195 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
- 219 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 2014 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
869 WUUS55 KFGZ 230221 SVRFGZ AZC007-017-230245- /O.NEW.KFGZ.SV.W.0013.120723T0221Z-120723T0245Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 721 PM MST SUN JUL 22 2012 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA... SOUTH CENTRAL NAVAJO COUNTY IN NORTHEAST ARIZONA... * UNTIL 745 PM MST * AT 717 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CARRIZO...OR 22 MILES SOUTHWEST OF SHOW LOW...AND MOVING WEST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... CARRIZO... HIGHWAY 60 FROM MILE POST 310 TO 320... PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WARNING IS ISSUED FOR STORMS PRODUCING HAIL 1 INCH DIAMETER OR LARGER...AND/OR WINDS GREATER THAN 57 MPH. && LAT...LON 3395 11047 3413 11039 3398 11009 3385 11015 TIME...MOT...LOC 0219Z 111DEG 17KT 3395 11022 $$ JJ
1 follow-up statement
325 WWUS55 KFGZ 230246 SVSFGZ SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 746 PM MST SUN JUL 22 2012 AZC007-017-230255- /O.EXP.KFGZ.SV.W.0013.000000T0000Z-120723T0245Z/ GILA AZ-NAVAJO AZ- 746 PM MST SUN JUL 22 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NAVAJO AND EAST CENTRAL GILA COUNTIES HAS EXPIRED... THE STORM THAT PROMPTED THE WARNING NEAR CARRIZO HAS WEAKENED. HEAVY RAIN IS STILL LIKELY IN CARRIZO THROUGH AROUND 8 PM MST. LAT...LON 3395 11047 3413 11039 3398 11009 3385 11015 TIME...MOT...LOC 0221Z 111DEG 17KT 3395 11023 $$
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 5:17 PM MST | Areal Flood Advisory | FGZ | Yavapai | 88 min |
| Jul 22, 6:49 PM MST | Special Weather Statement | FGZ | 26 min | |
| Jul 23, 1:24 PM MST | Areal Flood Advisory | FGZ | Yavapai | 96 min |
| Jul 23, 3:32 PM MST | Areal Flood Advisory | FGZ | Yavapai | 2 hr |
| Jul 23, 4:00 PM MST | Areal Flood Advisory | FGZ | Coconino, Yavapai | 88 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2012Every severe thunderstorm warning in 2012
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.