Alert archive / Arizona / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 51, NWS Las Vegas, NV

July 30, 2016Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 30, 2016, 12:26 AM MST for Mohave County, Arizona. It was in force for 64 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 30, 2016, 12:26 AM MST (07:26 UTC)
Expired: Jul 30, 2016, 1:30 AM MST
In force: 64 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 123 km from the middle of the area, began a volume at 07:26 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 7.4 hours before the alert went out and 161 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2863 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: -15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

742 
WUUS55 KVEF 300726
SVRVEF
AZC015-300830-
/O.NEW.KVEF.SV.W.0051.160730T0726Z-160730T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1226 AM MST SAT JUL 30 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWESTERN ARIZONA...

* UNTIL 130 AM MST

* AT 1225 AM 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 13 MILES WEST OF DIAMOND CREEK CAMPGROUND TO 13
  MILES SOUTHEAST OF BLAKE RANCH ROAD...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DIAMOND CREEK CAMPGROUND...DIAMOND M RANCH...BLAKE RANCH ROAD...
  VALENTINE AND PEACH SPRINGS.

THIS INCLUDES INTERSTATE 40 IN ARIZONA BETWEEN MILE MARKERS 66 AND
93.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM WILL PRODUCE HIGH WINDS WHICH CAN BRING DOWN TREES AND
POWER LINES AND CAUSE BLOWING DUST. ALSO...LIGHTNING CAN KILL! TAKE
COVER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS UNTIL THE STORM
PASSES. REPORT SEVERE WEATHER TO THE LAS VEGAS NATIONAL WEATHER
SERVICE VIA FACEBOOK OR TWITTER.

&&

LAT...LON 3509 11378 3577 11397 3592 11333 3589 11331
      3575 11334 3497 11334
TIME...MOT...LOC 0725Z 271DEG 27KT 3576 11362 3507 11360 

$$

WOLCOTT

2 follow-up statements

696 
WWUS55 KVEF 300811
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
111 AM MST SAT JUL 30 2016

AZC015-300830-
/O.CON.KVEF.SV.W.0051.000000T0000Z-160730T0830Z/
MOHAVE AZ-
111 AM MST SAT JUL 30 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM MST
FOR CENTRAL MOHAVE COUNTY...

AT 110 AM MST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED NEAR PEACH SPRINGS...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
DIAMOND CREEK CAMPGROUND...DIAMOND M RANCH...VALENTINE AND PEACH
SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM WILL PRODUCE HIGH WINDS WHICH CAN BRING DOWN TREES AND
POWER LINES AND CAUSE BLOWING DUST. ALSO...LIGHTNING CAN KILL! TAKE
COVER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS UNTIL THE
STORM PASSES. REPORT SEVERE WEATHER TO THE LAS VEGAS NATIONAL
WEATHER SERVICE VIA FACEBOOK OR TWITTER.

&&

LAT...LON 3513 11366 3579 11376 3584 11337 3585 11332
      3575 11334 3504 11334
TIME...MOT...LOC 0810Z 271DEG 27KT 3575 11322 3506 11320 

$$

WOLCOTT

736 
WWUS55 KVEF 300829
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
129 AM MST SAT JUL 30 2016

AZC015-300839-
/O.EXP.KVEF.SV.W.0051.000000T0000Z-160730T0830Z/
MOHAVE AZ-
129 AM MST SAT JUL 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOHAVE COUNTY WILL
EXPIRE AT 130 AM MST...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS AND EXITED THE WARNED AREA. THEREFORE THE WARNING WILL BE
ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.

LAT...LON 3513 11366 3579 11376 3584 11337 3585 11332
      3575 11334 3504 11334
TIME...MOT...LOC 0827Z 271DEG 27KT 3575 11322 3506 11320 

$$

WOLCOTT

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.

In the hours before

Local storm report, Jul 30, 12:09 AM MST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1209 AM PDT SAT JUL 30 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1151 PM     DUST STORM       2 ENE LAKE HAVASU CITY  34.49N 114.30W
07/29/2016                   MOHAVE             AZ   TRAINED SPOTTER

            REPORT VIA TWITTER OF VISIBILITY DOWN TO 1/4
            MILE IN LAKE HAVASU CITY.

&&

RAW

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 11:41 PM MST	Severe Thunderstorm Warning	VEF	Mohave	71 min
Jul 30, 12:50 AM MST	Severe Thunderstorm Warning	VEF	Mohave	85 min
Jul 30, 1:07 AM MST	Flash Flood Warning	VEF	Mohave	3 hr
Jul 30, 1:28 AM MST	Areal Flood Advisory	VEF	Mohave	3 hr
Jul 30, 2:24 AM MST	Areal Flood Warning	VEF	Mohave	12 hr
Jul 30, 2:22 PM MST	Flash Flood Watch	VEF	Mohave	12 hr

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.