Severe Thunderstorm Warning 93, NWS Albuquerque, NM

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
311 PM MDT WED JUL 15 2009

.DISCUSSION...
UPPER LEVEL HIGH PRESSURE IS RE-ESTABLISHING ITSELF FARTHER WEST
WITH CURRENT RUC80 ANALYSIS INDICATING A CENTROID OVER CENTRAL NEW
MEXICO AT ABOUT 598 DAM. REMNANTS OF A WEAK MCV WERE NOTED ON
WATER VAPOR IMAGERY NEAR THE ARIZONA/MEXICO BORDER...BUT THIS
FEATURE LOOKS AS THOUGH IT WILL STEER WEST OF THE ABQ CWA. AT THE
SURFACE...FRONTAL BOUNDARY OVER NE QUADRANT IS EXPECTED TO SLOWLY
WASH OUT THROUGH THE EVENING HOURS. ALTHOUGH THIS BOUNDARY IS NOT
EXPECTED TO INITIATE ANY CONVECTION DIRECTLY...IT MAY ACT AS AN
AID TO CURRENT CONVECTION DEVELOPING OFF OF SANGRES AND THE RATON
RIDGE. BELT OF STRONGER NORTHWESTERLIES ALOFT COUPLED WITH
EAST/NORTHEAST SURFACE FLOW WILL PROVIDE SUFFICIENT
SPEED/DIRECTIONAL SHEAR FOR SOME ROTATING/SEVERE CELLS THROUGH THE
EVENING WITH MODEST CAPE AMOUNTS KEEPING ACTIVITY FAIRLY DISCRETE
AND NOT TOO NUMEROUS. SEVERE TSTORM WATCH MAY BE ISSUED A LITTLE
LATER TO COVER THIS.

UPPER HIGH WILL CONTINUE SHIFTING TOWARD THE FOUR CORNERS REGION
THURSDAY WHILE ISOLATED CONVECTIVE CHANCES STAY ALIVE IN THE EAST
CENTRAL TO NORTHEASTERN PLAINS GIVEN NORTHWESTERLY STEERING FLOW
OFF OF THE HIGHER TERRAIN. OTHERWISE A FAIRLY ROUTINE DAY ACROSS
THE HIGHER TERRAIN OF CENTRAL TO WESTERN NEW MEXICO WITH NEAR TO
SLIGHTLY ABOVE NORMAL TEMPS AND GARDEN VARIETY TSTORMS. THE
PATTERN BECOMES MORE AMPLIFIED THROUGH FRIDAY WITH CENTER OF UPPER
HIGH SHIFTING SLIGHTLY NORTH OF AZ/UT BORDER. THIS WILL INTRODUCE A
MORE PRONOUNCED MERIDIONAL COMPONENT TO WINDS ALOFT IN EASTERN
NEW MEXICO AND POTENTIALLY ENOUGH DIRECTIONAL SHEAR FOR ANOTHER
ROUND OF MARGINAL TO SEVERE WEATHER. BACK DOOR COLD FRONT WILL BE
FLIRTING WITH THE NORTHEASTERN PLAINS FRIDAY MORNING...AND WILL
PUNCH ITS WAY PAST THE CENTRAL VALLEYS BY LATE FRIDAY
NIGHT/SATURDAY MORNING...AND WILL CONTINUE TOWARD THE ARIZONA
BORDER BY SUNRISE SATURDAY. MEANWHILE...MAIN PLUME OF SUBTROPICAL
MID TO HIGH LEVEL MOISTURE WILL STAY CONFINED TO THE
SOUTH/SOUTHWESTERN PERIPHERY OF THE HIGH AND AWAY FROM CWA FRIDAY
AND INTO THE WEEKEND. THIS TREND WILL KEEP ISOLATED TO SCATTERED
POPS IN THE EASTERN ZONES WITH MORE SPARSE COVERAGE IN CENTRAL TO
WESTERN AREAS...EXCEPT WHEN LOW LEVEL MOISTURE CAN INTRUDE FROM
THE EAST LIKE ON SATURDAY. THE ECMWF INDICATES SOME SUBTROPICAL MOISTURE
EVENTUALLY INTRUDING FROM THE SOUTH BY MIDDLE PART OF NEXT
WEEK...HOWEVER PLACEMENT OF THE UPPER HIGH TO OUR WEST WOULD
SUGGEST THAT MOISTURE WOULD BE MORE LIKELY TO ARRIVE FROM THE
NORTHEAST...IN A REVERSE MONSOON REGIME.

IMPORTANT NOTE...EFFECTIVE WEDNESDAY JULY 22ND AT 300 PM MDT...THE
NATIONAL WEATHER SERVICE IN ALBUQUERQUE WILL ISSUE PUBLIC FORECASTS
AND WARNING PRODUCTS USING NEW ZONE BOUNDARIES. FOR FURTHER DETAILS...
PLEASE REFER TO HTTP://WWW.SRH.NOAA.GOV/ABQ/ZONES/2009PUBLICZONES.PHP
/USE LOWER CASE LETTERS/.

52

&&

.AVIATION...
VFR CONDITIONS TO CONTINUE ACROSS WESTERN AND CENTRAL TERMINAL SITES
THROUGH TODAY AND MOST LIKELY FOR THURSDAY AS WELL. THE MAIN FOCUS
FOR MVFR AND SHORT DURATION AND VERY LOCALIZED IFR CONDITIONS
ASSOCIATED WITH THUNDERSTORMS WILL BE FOUND ALONG THE EAST SLOPES OF
THE CENTRAL MOUNTAINS EASTWARD TO THE TEXAS STATE LINE. STRONGER TO
EVEN SEVERE STORMS COULD BE FOUND ACROSS THE NORTHEAST PLAINS LATER
THIS AFTERNOON AND EVENING. SOME PATCHY MVFR CONDITIONS COULD
DEVELOP ACROSS PORTIONS OF THE NORTHEAST HIGHLANDS AND NORTHEAST
PLAINS LATER TONIGHT...AFTER MOST OF THE THUNDERSTORMS DIE OFF. THE
TERMINAL SITE MOST LIKELY TO OBSERVE LOWER CIGS LATER TONIGHT WOULD
BE LVS. THE TERMINAL SITES MOST LIKELY TO OBSERVE MVFR CONDITIONS
DUE TO TS INCLUDE LVS...TCC AND ROW.

NEXT AVIATION DISCUSSION SCHEDULED FOR 09Z. 50

&&

.FIRE WEATHER...
WEATHER PATTERN AS PREDICTED BY THE MODELS REMAINS FAIRLY CONSISTENT
THROUGH THE END OF THE WEEK AND OVER THE WEEKEND.

THE UPPER LEVEL HIGH...CURRENTLY OVER SOUTH CENTRAL NM...WILL
GRADUALLY MIGRATE TOWARDS THE FOUR CORNERS AREA AND SOUTHERN UTAH
DURING THE NEXT COUPLE OF DAYS. THIS HIGH MIGRATION WILL AID MOISTURE
SURGES FROM THE HIGH PLAINS. THE INITIAL MOISTURE SURGE WESTWARD
WILL COME TONIGHT IN THE FORM OF A WEAK TO MODERATE GAP WIND ALONG
THE CENTRAL MOUNTAINS. HOWEVER...DRY AIR FOUND OVER THE FOUR CORNERS
REGION WILL TRY TO MIX OUT THIS MOISTURE THURSDAY AFTERNOON ACROSS
THE NORTHWEST HALF. HIGH HAINES INDEX EXPECTED FOR THE NORTHWEST
HALF THURSDAY AFTERNOON.

ANOTHER WEAK MOISTURE SURGE...VIA THE GAP WIND AND SPURRED ON BY
SHOWER AND THUNDERSTORMS DEVELOPMENT ALONG THE CENTRAL MOUNTAINS
EASTWARD ON THURSDAY SHOULD OCCUR. BUT ONCE AGAIN...DRY AIR LOCKED
UP OVER THE FOUR CORNERS AREA SHOULD PUSH THIS MOISTURE BACK TO THE
EAST AND SOUTH. BASED ON THE PAST FEW MODELS RUNS...IT APPEARS THAT A
MODERATE TO STRONG GAP WIND EVENT IS ON TRACK FOR FRIDAY NIGHT INTO
SATURDAY. THIS MEANS THAT ABUNDANT MOISTURE POOLED OVER THE EASTERN
PLAINS SHOULD GET TRANSPORTED FURTHER WEST. THIS ADDITIONAL MOISTURE
WOULD FUEL INCREASED WETTING THUNDERSTORM COVERAGES SATURDAY AND MOST
LIKELY SUNDAY ACROSS PORTIONS OF THE WEST AND ESPECIALLY CENTRAL
AREAS. THIS IS NOT A DROUGHT BUSTER SITUATION BUT IT IS ONE WHICH
WILL ALLOW TEMPERATURES TO COOL SOMEWHAT ACROSS THE AREA DUE TO
INCREASED CLOUD COVER DURING THE PEAK HEATING PERIOD.

RECYCLING OF MOISTURE IN THE FORM OF SHOWERS AND THUNDERSTORMS AND
PERHAPS A RECHARGE OF THE LOW LEVEL MOISTURE FROM EAST TO WEST VIA
ANOTHER BACK DOOR PUSH IS EXPECTED TO OCCUR INTO THE EARLIER HALF OF
NEXT WEEK. THIS IS MAINLY DUE TO THE UPPER HIGH BEING POSITIONED TO
THE WEST OF THE STATE BASED ON LONG RANGE MODEL PROJECTIONS.

THE DRIEST AREA THURSDAY THROUGH SUNDAY IS STILL EXPECTED TO BE THE
FOUR CORNERS AREA WHERE THE UPPER HIGH WILL ACT TO BLOCK A
SIGNIFICANT OR DEEP MOISTURE TRANSPORT FROM THE SOUTH AND EAST.
MINIMUM HUMIDITY DURING THIS PERIOD WILL FALL INTO THE SINGLE
DIGITS. MAXIMUM TEMPERATURES DURING THIS SAME PERIOD WOULD BE IN THE
UPPER 90S TO AROUND 100 DEGREES.

WINDS APPEAR TO BE ON THE LIGHTER SIDE OVERALL...ALTHOUGH SHOWER
AND THUNDERSTORM DEVELOPMENT WILL LEAD TO GUSTY OUTFLOW WINDS. AS
THE THUNDERSTORMS GET STRONGER WITH EACH DAY...SO WILL THE
POTENTIAL FOR STRONG OUTFLOW WINDS. NIGHTTIME GAP WINDS FOUND
ALONG THE CENTRAL MOUNTAINS WILL ALSO BECOME STRONG AT TIMES OVER
THE COURSE OF THE NEXT FEW DAYS.

50

&&

.PRELIMINARY POINT TEMPS/POPS...
FARMINGTON......................  59  99  58  99 /   0   0   0   0
GALLUP..........................  53  94  54  94 /   5   5   0   5
GRANTS..........................  54  93  54  93 /  10   5   0  10
GLENWOOD........................  69  98  69  98 /  10  10  10  20
CHAMA...........................  42  88  43  87 /  10   5   5  10
LOS ALAMOS......................  56  92  56  91 /  10  10   5  10
RED RIVER.......................  42  80  43  80 /  40  10  10  10
TAOS............................  50  90  50  90 /  20  10   5  10
SANTA FE........................  60  93  60  93 /  10  10   5  10
SANTA FE AIRPORT................  59  95  59  95 /   5  10   5  10
ESPANOLA........................  57  99  57  98 /  10  10   5  10
ALBUQUERQUE HEIGHTS.............  70  96  69  96 /   5   5   5   5
ALBUQUERQUE VALLEY..............  67  98  67  98 /   5   5   5   0
ALBUQUERQUE FOOTHILLS...........  69  95  68  95 /   5   5   5  10
ALBUQUERQUE WEST MESA...........  67  98  67  98 /   5   5   5   5
SOCORRO.........................  67  98  68  98 /   5   5   5   5
SANDIA PARK/CEDAR CREST.........  59  88  59  89 /  20  10   5  20
MORIARTY/ESTANCIA...............  62  92  61  92 /  20  20  10  20
CARRIZOZO.......................  63  96  65  95 /  20  20  10  20
RUIDOSO.........................  60  88  61  87 /  30  20  10  20
RATON...........................  64  94  63  93 /  40  10   5  10
LAS VEGAS.......................  56  88  56  87 /  40  20  10  20
ROY.............................  63  91  62  90 /  40  20  10  20
CLAYTON.........................  64  97  64  96 /  30  10  10  20
SANTA ROSA......................  68  97  68  97 /  20  20  10  20
TUCUMCARI.......................  69 100  69  99 /  10  10  10  20
FORT SUMNER.....................  68  99  68  99 /  10  10  10  20
CLOVIS..........................  69  95  68  95 /  10  10  10  10
PORTALES........................  67  98  67  98 /  10   5  10  10
ROSWELL.........................  71  98  70  99 /  10   5  10  10

&&

.ABQ WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

52/50

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
558 AM MDT WED JUL 15 2009

NMZ001>021-026-161200-
NORTHWEST PLATEAU-NORTHWEST MOUNTAINS INCLUDING JEMEZ-
UPPER RIO GRANDE VALLEY-SANGRE DE CRISTO MOUNTAINS-
NORTHEAST HIGHLANDS-HARDING COUNTY-FAR NORTHEAST PLAINS-
WEST CENTRAL MOUNTAINS-
MIDDLE RIO GRANDE VALLEY/ALBUQUERQUE METRO AREA-
SANDIA/MANZANO MOUNTAINS-CENTRAL HIGH PLAINS/ESTANCIA VALLEY-
CONCHAS LAKE/GUADALUPE COUNTY-QUAY COUNTY-
SOUTHWEST MOUNTAINS/UPPER GILA REGION-LOWER RIO GRANDE VALLEY-
LINCOLN COUNTY HIGH PLAINS/HONDO VALLEY-
CAPITAN/NORTHERN SACRAMENTO MOUNTAINS-DE BACA COUNTY-
CHAVES COUNTY PLAINS-ROOSEVELT COUNTY-CURRY COUNTY-
GUADALUPE MOUNTAINS OF CHAVES COUNTY-
558 AM MDT WED JUL 15 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL
NEW MEXICO.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING FROM THE EAST SLOPES OF THE SANGRE DE CRISTO MOUNTAINS
EASTWARD ACROSS THE NORTHEAST AND EAST CENTRAL PLAINS...MAINLY
ALONG AND NORTH OF I-40 TO THE COLORADO BORDER. LARGE HAIL AND
DAMAGING WINDS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

MONDAY AND TUESDAY...THE POTENTIAL EXISTS FOR SEVERE THUNDERSTORMS
TO DEVELOP DURING THE AFTERNOON AND NIGHT ALONG AND EAST OF THE
CENTRAL MOUNTAIN CHAIN TO THE TEXAS AND OKLAHOMA BORDERS.

WEATHER CAN CHANGE VERY RAPIDLY. ALWAYS USE THE LATEST FORECASTS...
WATCHES AND WARNINGS FOR PLANNING PURPOSES.

.SPOTTER INFORMATION STATEMENT...

THIS AFTERNOON AND EVENING...SPOTTER ACTIVATION MAY BE REQUIRED IN
COLFAX...GUADALUPE...HARDING...MORA...QUAY AND UNION COUNTIES DUE
TO SEVERE THUNDERSTORMS.

MONDAY AND TUESDAY AFTERNOONS AND EVENINGS...SPOTTER ACTIVATION
MAY BE REQUIRED CHAVES...COLFAX...CURRY...GUADALUPE...HARDING...
LINCOLN...MORA...QUAY...ROOSEVELT...SAN MIGUEL...TORRANCE AND
UNION COUNTIES DUE TO SEVERE THUNDERSTORMS.

44

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
254 PM MDT WED JUL 15 2009

NMZ012-016>019-152145-
CAPITAN/NORTHERN SACRAMENTO MOUNTAINS-CHAVES COUNTY PLAINS-CONCHAS
LAKE/GUADALUPE COUNTY-DE BACA COUNTY-LINCOLN COUNTY HIGH PLAINS/HONDO
VALLEY-
254 PM MDT WED JUL 15 2009

...STRONG THUNDERSTORM MOVING OVER NORTHERN LINCOLN COUNTY TOWARD
THE DE BACA COUNTY LINE...

AT 253 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...CAPABLE OF PRODUCING WINDS UP TO 50 MPH AND
HAIL UP TO ONE HALF INCH IN DIAMETER 24 MILES NORTHEAST OF JICARILLA.
MOVEMENT WAS EAST AT 10 MPH.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE MESA...HIGHWAY 285...AND
STATE ROAD 20.

THIS STORM WAS NOT PRODUCING SEVERE WEATHER AT THIS TIME. HOWEVER...
PERSONS IN THE PATH OF THIS STORM ARE ADVISED TO MONITOR THE WEATHER
SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO
TAKE APPROPRIATE ACTION.

SHY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
304 PM MDT WED JUL 15 2009

NMZ005-152145-
NORTHEAST HIGHLANDS-
304 PM MDT WED JUL 15 2009

...STRONG THUNDERSTORM MOVING ACROSS NORTHERN SAN MIGUEL COUNTY...

AT 300 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...CAPABLE OF PRODUCING WINDS UP TO 55 MPH AND
HAIL UP TO ONE HALF INCH IN DIAMETER 7 MILES SOUTHWEST OF WATROUS.
MOVEMENT WAS EAST AT 10 MPH.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE RURAL EXTREME SOUTH
CENTRAL MORA COUNTY AND RURAL NORTH CENTRAL SAN MIGUEL COUNTY.

HEAVY RAINS WILL CAUSE WATER TO POND ON ROADS AND IN LOW SPOTS. FAST
RUNNING WATER MAY FILL ARROYOS AND DITCHES.

THIS STORM WAS NOT PRODUCING SEVERE WEATHER AT THIS TIME. HOWEVER...
PERSONS IN THE PATH OF THIS STORM ARE ADVISED TO MONITOR THE WEATHER
SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO
TAKE APPROPRIATE ACTION.

KW