Alert archive / Arizona / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 13, NWS Flagstaff, AZ

July 25, 2016Gila County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 25, 2016, 2:40 PM MST for Gila County, Arizona. It was in force for 13 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 25, 2016, 2:40 PM MST (21:40 UTC)
Expired: Jul 25, 2016, 2:53 PM MST
In force: 13 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 70 km from the middle of the area, began a volume at 21:43 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, 9.7 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 264 J/kg
Mixed-layer CIN: -360 J/kg
Mixed-layer LCL: 2221 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

250 
WUUS55 KFGZ 252140
SVRFGZ
AZC007-252215-
/O.NEW.KFGZ.SV.W.0013.160725T2140Z-160725T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
240 PM MST MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

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

* UNTIL 315 PM MST

* AT 240 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 7
  MILES SOUTH OF YOUNG...OR 24 MILES NORTHEAST OF ROOSEVELT...AND
  MOVING NORTH AT 5 MPH.

* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  CENTRAL GILA COUNTY.

THIS INCLUDES STATE ROUTE 288 BETWEEN MILE MARKERS 289 AND 303.

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 3389 11096 3405 11106 3409 11091 3401 11082
TIME...MOT...LOC 2140Z 163DEG 5KT 3399 11094 

$$

41

1 follow-up statement

195 
WWUS55 KFGZ 252153
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
253 PM MST MON JUL 25 2016

AZC007-252202-
/O.CAN.KFGZ.SV.W.0013.000000T0000Z-160725T2215Z/
GILA AZ-
253 PM MST MON JUL 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GILA COUNTY IS
CANCELLED...
                
THE STORM  7 MILES SOUTH OF YOUNG...WHICH PROMPTED THE WARNING HAS
WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE
THREAT TO LIFE OR PROPERTY.

THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER HEAVY RAIN IS STILL
POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3389 11096 3405 11106 3409 11091 3401 11082
TIME...MOT...LOC 2151Z 163DEG 5KT 3401 11095 

$$

41

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 1:13 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Gila	14 min
Jul 25, 1:27 PM MST	Areal Flood Advisory	FGZ	Coconino	2 hr
Jul 25, 1:51 PM MST	Areal Flood Advisory	FGZ	Coconino, Gila	54 min
Jul 25, 2:08 PM MST	Areal Flood Advisory	FGZ	Coconino	112 min
Jul 25, 2:25 PM MST	Areal Flood Advisory	FGZ	Coconino, Gila	65 min
Jul 25, 2:36 PM MST	Special Weather Statement	FGZ	Yavapai	24 min
Jul 25, 2:57 PM MST	Special Weather Statement	FGZ		33 min
Jul 25, 3:07 PM MST	Flash Flood Warning	FGZ	Yavapai	2 hr
Jul 25, 3:29 PM MST	Flash Flood Warning	FGZ	Gila	91 min
Jul 25, 3:43 PM MST	Flash Flood Warning	FGZ	Yavapai	2 hr
Jul 25, 4:26 PM MST	Special Weather Statement	FGZ		34 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2016 Every 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.