Alert archive / Arizona / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Flagstaff, AZ

July 29, 2016Gila County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 29, 2016, 4:16 PM MST for Gila County, Arizona. It was in force for 29 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 29, 2016, 4:16 PM MST (23:16 UTC)
Expired
Jul 29, 2016, 4:45 PM MST
In force
29 min
Issued by
NWS Flagstaff, AZ
Area
Storm-based polygon

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 39 km from the middle of the area, began a volume at 23:18 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, 11.3 hours before the alert went out and 110 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.

Skew-T log-pSkew-T log-p diagram, Phoenix, AZ at 12:00Z on 2016-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 911 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 12:00Z on 2016-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -66 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
911 J/kg
Mixed-layer CIN
-339 J/kg
Mixed-layer LCL
2440 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-66 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

243 
WUUS55 KFGZ 292316
SVRFGZ
AZC007-292345-
/O.NEW.KFGZ.SV.W.0021.160729T2316Z-160729T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
416 PM MST FRI JUL 29 2016

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GILA COUNTY IN EAST CENTRAL ARIZONA...

* UNTIL 445 PM MST

* AT 414 PM MST...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR WHISPERING PINES TO 7 MILES WEST OF YOUNG...AND
  MOVING WEST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PAYSON...STAR VALLEY...FLOWING SPRINGS...EAST VERDE ESTATES...ROUND
  VALLEY...GISELA...MESA DEL CABA...OXBOW ESTATES...FREEDOM ACRES...
  WHISPERING PINES...BEAVER VALLEY...HOUSTON MESA CAMPGROUND.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 STATE ROUTE 288 BETWEEN MILE MARKERS 303 AND 304.
 STATE ROUTE 260 BETWEEN MILE MARKERS 252 AND 264.
 STATE ROUTE 87 SOUTHBOUND BETWEEN MILE MARKERS 246 AND 251.
 STATE ROUTE 87 BETWEEN MILE MARKERS 245 AND 263.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3433 11144 3400 11123 3406 11095 3439 11120
TIME...MOT...LOC 2314Z 068DEG 10KT 3434 11123 3410 11107 

$$
JJ
2 follow-up statements
137 
WWUS55 KFGZ 292335
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
435 PM MST FRI JUL 29 2016

AZC007-292345-
/O.CON.KFGZ.SV.W.0021.000000T0000Z-160729T2345Z/
GILA AZ-
435 PM MST FRI JUL 29 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM MST
FOR NORTHWESTERN GILA COUNTY...

AT 434 PM MST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM FREEDOM
ACRES TO 9 MILES EAST OF GISELA...MOVING WEST AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
PAYSON...STAR VALLEY...FLOWING SPRINGS...EAST VERDE ESTATES...
ROUND VALLEY...GISELA...MESA DEL CABA...OXBOW ESTATES...
FREEDOM ACRES...WHISPERING PINES...BEAVER VALLEY...
HOUSTON MESA CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3438 11124 3405 11101 3400 11123 3433 11144
TIME...MOT...LOC 2334Z 068DEG 10KT 3432 11128 3408 11112 

$$
JJ
945 
WWUS55 KFGZ 292347
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
447 PM MST FRI JUL 29 2016

AZC007-292356-
/O.EXP.KFGZ.SV.W.0021.000000T0000Z-160729T2345Z/
GILA AZ-
447 PM MST FRI JUL 29 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GILA COUNTY HAS
EXPIRED...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS. HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL LIKELY WITH
THESE THUNDERSTORMS...ALONG WITH TORRENTIAL RAINFALL.

LAT...LON 3438 11124 3405 11101 3400 11123 3433 11144
TIME...MOT...LOC 2344Z 068DEG 10KT 3432 11128 3408 11112 

$$
JJ

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 28, 5:12 PM MSTAreal Flood AdvisoryFGZYavapai2 hr
Jul 28, 5:19 PM MSTSpecial Weather StatementFGZYavapai26 min
Jul 28, 5:46 PM MSTSpecial Weather StatementFGZYavapai29 min
Jul 28, 7:15 PM MSTSpecial Weather StatementFGZ30 min
Jul 29, 12:50 PM MSTSpecial Weather StatementFGZ25 min
Jul 29, 3:05 PM MSTSevere Thunderstorm WarningFGZGila, Navajo25 min
Jul 29, 3:28 PM MSTSpecial Weather StatementFGZ17 min
Jul 29, 3:46 PM MSTSpecial Weather StatementFGZ29 min
Jul 29, 3:49 PM MSTSevere Thunderstorm WarningFGZCoconino, Gila26 min
Jul 29, 4:10 PM MSTSevere Thunderstorm WarningFGZYavapai35 min
Jul 29, 4:32 PM MSTFlash Flood WarningFGZGila118 min
Jul 29, 4:35 PM MSTSevere Thunderstorm WarningFGZCoconino, Yavapai25 min
Jul 29, 4:45 PM MSTSpecial Weather StatementFGZGila45 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2016Every severe thunderstorm warning in 2016

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.