Monday, March 7, 2011

DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0200Z March 8, 2011

Significant dust/sand storms:
Large upper level low continues to move across the Four-corners region of
the US Southwest.  Associated strong southwesterly winds are affecting sfc
sand/dust sources across SE Arizona, S New Mexico, Western Panhandle of
Texas, and Northern Chihuahua.  On the backside of the low, an equally
strong jet streak out of the W and NW is affecting sand/dust sources
across Nevada and Baja California.

Further details:

Nevada:
Strong Nwly winds are kicking up moderate to dense sand and dust
prodominantly from the dry lakes east of the Silver Peak Range in
central Esmeralda county and blowing it as far SSE the Inyo/San Bernadino
eastern boarder and far S Nye county likely leading to difficult driving
conditions across US-95...sand was just about to blow into far Western
Clark county, NV.  Smaller contributions of thin to moderate sand/dust
could be seen blowing from dry lakes west of the Silver Peak Range and
Eureka Dunes of northern Death Valley Nat'l Park.

Baja California/N Sea of Cortez:
Strong winds on the SW side of the upper level low were out of the
WNW hitting the ridge of the Sierra de Juarez of NE Baja California
in NW Mexico.  The leeward side desert consequently was the source of
moderate sand and dust that was pulled E to ESE across the Northern Sea
of Cortez covering the northern 100-150km of the Sea and across to the
western coast of Sonora north of 30N.

SE AZ/S NM/W TX/N Chihuahua:
Very strong sfc winds across the deserts of along the US/Mexico boarder
have produced a very large area of moderate to dense sand, covering all
of the Southern line of counties in NM, N Chihuahua (north of 30N) and
the counties of El Paso, Hudspeth, Culberson, Reeves and likely Loving,
Winkler, Ward and Jeff Davis in West Texas.  Sources of this dense sand
include many of the salt/dry deserts of N Chihuahua, the salt flat near
Dos Cabezas in Cochise county AZ, the white sand desert near Ojo de Agua
in NE Sonora, Mexico, and nearly all dry lakes/deserts in S New Mexico
including White Sands and Playas Lake.

Gallina


THE FORMAT OF THIS TEXT PRODUCT IS BEING MODIFIED. IT WILL NO LONGER
DESCRIBE THE VARIOUS PLUMES THAT ARE ASSOCIATED WITH ACTIVE FIRES. THESE
PLUMES ARE DEPICTED IN VARIOUS GRAPHIC FORMATS ON OUR WEB SITE:

JPEG:   http://www.osdpd.noaa.gov/ml/land/hms.html
GIS:    http://www.firedetect.noaa.gov/viewer.htm
KML:    http://www.ssd.noaa.gov/PS/FIRE/kml.html

THIS TEXT PRODUCT WILL CONTINUE TO DESCRIBE SIGNIFICANT AREAS OF SMOKE
WHICH HAVE BECOME DETACHED FROM AND DRIFTED SOME DISTANCE AWAY FROM THE
SOURCE FIRE, TYPICALLY OVER THE COURSE OF ONE OR MORE DAYS. IT WILL ALSO
STILL INCLUDE DESCRIPTIONS OF BLOWING DUST. THE SMOKE TEXT PRODUCT IN
GENERAL SHOULD BE SENT TO SSDFireTeam@noaa.gov

ANY QUESTIONS OR COMMENTS REGARDING THESE CHANGES OR THE SMOKE TEXT
PRODUCT IN GENERAL SHOULD BE SENT TO SSDFireTeam@noaa.gov

 


Unless otherwise indicated:
  • Areas of smoke are analyzed using GOES-EAST and GOES-WEST Visible satellite imagery.
  • Only a general description of areas of smoke or significant smoke plumes will be analyzed.
  • A quantitative assessment of the density/amount of particulate or the vertical distribution is not included.
  • Widespread cloudiness may prevent the detection of smoke even from significant fires.