Alert archive / Arizona / High Wind Warnings in 2011

High Wind Warning 3, NWS Flagstaff, AZ

November 18, 2011Coconino County, Arizona

NWS Flagstaff, AZ issued this high wind warning at Nov 18, 2011, 11:54 PM MST for Coconino County, Arizona. It was in force for 8 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Nov 18, 2011, 11:54 PM MST (06:54 UTC)
Expired
Nov 19, 2011, 8:00 AM MST
In force
8 hr
Issued by
NWS Flagstaff, AZ

County Coconino County, AZ

The radar

The Flagstaff radar (KFSX), 150 km from the middle of the area, began a volume at 06:58 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.

What was reported inside it

TimeReportWhereRemark
Nov 19, 12:05 AM MSTNON-TSTM WND GST 77House Rock, AZ
Nov 19, 12:32 AM MSTNON-TSTM WND GST 60Two Guns, AZ
Nov 19, 5:55 AM MSTNON-TSTM WND GST 60Doney Park, AZ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 6.9 hours before the alert went out and 68 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, Flgstf/Belemont, AZ at 00:00Z on 2011-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 00:00Z on 2011-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
326 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

235 
WWUS75 KFGZ 190654
NPWFGZ

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1154 PM MST FRI NOV 18 2011



AZZ005-191500-
/O.NEW.KFGZ.HW.W.0003.111119T0654Z-111119T1500Z/
MARBLE AND GLEN CANYONS-
INCLUDING THE CITY OF...PAGE
1154 PM MST FRI NOV 18 2011

...HIGH WIND WARNING IN EFFECT UNTIL 8 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 8 AM MST SATURDAY. 



* TIMING: VERY STRONG WINDS CAN BE EXPECTED THROUGH MID MORNING
  SATURDAY.

* WINDS: SOUTHWEST WINDS OF 40 TO 50 MPH WITH GUSTS TO 70 MPH ARE
  OCCURRING IN HOUSE ROCK VALLEY. STRONG WINDS ARE EXPECTED TO
  CONTINUE OVERNIGHT.

* IMPACTS: AREAS OF BLOWING DUST MAY REDUCE VISIBILITIES. IN
  ADDITION...WINDS THIS STRONG CAN OVERTURN HIGH PROFILE VEHICLES.
  THE STRONGEST WINDS ARE EXPECTED ALONG HIGHWAY 89A FROM THE
  COLORADO RIVER WESTWARD TO THE KAIBAB PLATEAU.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING...WITH SUSTAINED WIND SPEEDS GREATER THAN 40 MPH OR
GUSTS GREATER THAN 58 MPH. WINDS THIS STRONG CAN CAUSE PROPERTY
DAMAGE. CONTINUE TO MONITOR THE LATEST FORECASTS. ADDITIONAL
WEATHER INFORMATION IS ON THE WEB AT WWW.WEATHER.GOV/FLAGSTAFF.

&&

$$
1 follow-up statement
296 
WWUS75 KFGZ 191453
NPWFGZ

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
753 AM MST SAT NOV 19 2011

AZZ005-191600-
/O.EXP.KFGZ.HW.W.0003.000000T0000Z-111119T1500Z/
MARBLE AND GLEN CANYONS-
INCLUDING THE CITY OF...PAGE
753 AM MST SAT NOV 19 2011

...HIGH WIND WARNING WILL EXPIRE AT 8 AM MST THIS MORNING...

THE HIGH WIND WARNING WILL EXPIRE AT 8 AM MST THIS MORNING. 

THE VERY STRONG WINDS THAT HAD PROMPTED THIS WARNING HAVE ENDED.
STILL...LOCALLY GUSTY SOUTHWEST WINDS TO AROUND 35 MPH WILL
CONTINUE THROUGH THIS AFTERNOON.

$$

Nearby

High Wind Warnings in Arizona, 2011Every high wind warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.