Alert archive / Arizona / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 49, NWS Las Vegas, NV

September 27, 2014Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 27, 2014, 7:59 AM MST for Mohave County, Arizona. It was in force for 19 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: Sep 27, 2014, 7:59 AM MST (14:59 UTC)
Expired: Sep 27, 2014, 8:18 AM MST
In force: 19 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 116 km from the middle of the area, began a volume at 15:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 27, 3:16 AM MST	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 3.0 hours before the alert went out and 178 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: 699 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

620 
WUUS55 KVEF 271459
SVRVEF
AZC015-271545-
/O.NEW.KVEF.SV.W.0049.140927T1459Z-140927T1545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
759 AM MST SAT SEP 27 2014

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

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

* UNTIL 845 AM MST.

* AT 758 AM 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
  WILD COW CAMPGROUND...OR 16 MILES SOUTHEAST OF KINGMAN...AND WAS
  MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WILD COW CAMPGROUND...HUALAPAI MOUNTAIN PARK...BLAKE RANCH RV PARK
  AND VALENTINE.
  U.S. HIGHWAY 93 BETWEEN INTERSTATE 40 AND MILE MARKER 101.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 79.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM MST
SATURDAY MORNING FOR NORTHWEST ARIZONA AND SOUTHERN NEVADA.

&&

LAT...LON 3544 11377 3540 11343 3483 11378 3496 11403
TIME...MOT...LOC 1459Z 206DEG 32KT 3504 11385

$$

WOLCOTT

1 follow-up statement

813 
WWUS55 KVEF 271518
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
818 AM MST SAT SEP 27 2014

AZC015-271528-
/O.CAN.KVEF.SV.W.0049.000000T0000Z-140927T1545Z/
MOHAVE AZ-
818 AM MST SAT SEP 27 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOHAVE COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS WEAKENED 
BELOW SEVERE THRESHOLDS.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 79.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM MST
SATURDAY MORNING FOR NORTHWEST ARIZONA.

LAT...LON 3544 11377 3540 11343 3483 11378 3496 11403
TIME...MOT...LOC 1518Z 206DEG 32KT 3519 11376

$$

WOLCOTT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 7:13 PM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 26, 9:56 PM MST	Flash Flood Warning	VEF	Mohave	2 hr
Sep 26, 10:16 PM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 26, 11:22 PM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 27, 1:37 AM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 27, 4:59 AM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 27, 5:25 AM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 27, 6:48 AM MST	Areal Flood Advisory	VEF	Mohave	3 hr
Sep 27, 7:03 AM MST	Severe Thunderstorm Warning	VEF	Mohave	42 min
Sep 27, 7:18 AM MST	Severe Thunderstorm Warning	VEF	Mohave	27 min
Sep 27, 7:35 AM MST	Areal Flood Advisory	VEF	Mohave	4 hr
Sep 27, 8:10 AM MST	Flash Flood Warning	VEF	Mohave	2 hr
Sep 27, 8:16 AM MST	Flash Flood Warning	VEF	Mohave	3 hr
Sep 27, 8:40 AM MST	Flash Flood Warning	VEF	Mohave	4 hr
Sep 27, 8:56 AM MST	Areal Flood Advisory	VEF	Mohave	4 hr
Sep 27, 9:11 AM MST	Areal Flood Warning	VEF	Mohave	18 hr
Sep 27, 9:41 AM MST	Areal Flood Advisory	VEF	Mohave	4 hr
Sep 27, 3:39 PM MST	Areal Flood Advisory	VEF	Mohave	6 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2014 Every severe thunderstorm warning in 2014

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.