Special Weather Statement, NWS Pueblo, CO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PUEBLO CO
320 PM MDT FRI MAY 29 2015

.SHORT TERM...(THIS EVENING THROUGH SATURDAY)
ISSUED AT 257 PM MDT FRI MAY 29 2015

CURRENTLY...UPPER WAVE...EVIDENT IN WATER VAPOR AND PV
CHARTS...LIES ACROSS SOUTHERN COLORADO THIS AFTERNOON WITH
SECONDARY PIECE OF ENERGY ROTATING SOUTH AROUND THE UPPER LOW INTO
NORTHERN COLORADO. CAPES ACROSS THE EASTERN MOUNTAINS AND PLAINS
RUNNING IN THE 500- 1000 J/KG RANGE...WHILE MAX 0-6 KM SHEAR OF
30-40 KTS LIES ALONG THE CO/NM BORDER. LATEST SVR WATCH FROM SPC
DOESN'T INCLUDE ANY OF SOUTHERN COLORADO...WHICH SEEMS REASONABLE
AS BEST SHEAR/CAPE STAY FAIRLY FAR SOUTH OF THE AREA INTO THE
EVENING. STILL PROBABLY ENOUGH CAPE FOR MARGINAL SEVERE HAIL
REPORT OR TWO WITH THE STRONGER STORMS...WITH FAIRLY VOLUMINOUS
SMALL HAIL AS WELL.

LATE THIS AFTERNOON/TONIGHT...CELLS ALONG/NORTH OF THE ARKANSAS
RIVER HAVE ALREADY PUSHED A RATHER SUBSTANTIAL OUTFLOW BOUNDARY
SOUTHWARD TOWARD THE WET AND SANGRE DE CRISTO MOUNTAINS AS OF
21Z...AND WOULD EXPECT EASTERN MOUNTAIN SLOPES...ALONG WITH THE
SOUTHERN I-25 CORRIDOR FROM PUEBLO SOUTHWARD TO HAVE THE BEST CHANCE
OF PRECIP FROM LATE AFTERNOON INTO THE EVENING AS WEAK DYNAMIC LIFT
IS AIDED BY ENHANCED UPSLOPE FLOW. IN FACT PRECIP COULD LINGER PAST
SUNSET IN THESE AREAS BEFORE GRADUALLY SHIFTING IN NM BY EARLY
SATURDAY MORNING. ELSEWHERE...INCLUDING MOST MOUNTAINS/INTERIOR
VALLEYS...CONVECTION LOOKS WEAKER AND MORE ISOLATED...WITH MOST
ACTIVITY ENDING AROUND SUNSET.

SATURDAY...ANY LINGERING -SHRA ALONG THE NM BORDER EARLY SHOULD EXIT
THE AREA QUICKLY AS BEST FORCING SHIFTS SOUTH INTO NM/TX. UPPER
RIDGE BEGINS TO BUILD INTO THE AREA SAT AFTERNOON WITH LOW AND MID
LEVEL MOISTURE GRADUALLY DIMINISHING. LATEST 4KM NAM SHOWS VERY
LITTLE IN THE WAY OF CONVECTION ACROSS COLORADO SAT AFTERNOON WITH
ONLY A FEW WEAK CELLS OVER THE HIGHER TERRAIN LATE IN THE DAY.
VARIOUS OTHER MODELS...INCLUDING THE 12Z GFS...ARE A LITTLE MORE
PLENTIFUL WITH AFTERNOON CONVECTION...EVEN TAKING A COUPLE TSRA INTO
THE I-25 CORRIDOR LATE IN THE DAY. GIVEN THE AMOUNT OF RESIDUAL
MOISTURE IN PLACE...SUSPECT COVERAGE OF CONVECTION WILL ALIGN MORE
WITH THE WETTER MODEL SOLUTIONS....SO KEPT POPS IN THE LOW SCATTERED
RANGE OVER MOST MOUNTAINS...JUST ISOLATED FOR THE I-25 AND INTERIOR
VALLEYS. WILL KEEP MAX TEMPS ON THE COOL SIDE OF GUIDANCE AND
CLIMATOLOGY ONE MORE DAY WITH WARMEST READINGS IN THE 70S FOUND
ACROSS THE LOWER ARKANSAS AND CENTRAL SAN LUIS VALLEYS.

.LONG TERM...(SATURDAY NIGHT THROUGH FRIDAY)
ISSUED AT 257 PM MDT FRI MAY 29 2015

...WARM AND DRY WEATHER AHEAD...

EXTENDED FORECAST LOOKS FAIRLY TAME COMPARED TO THE ACTIVE PATTERN
WE HAVE SEEN FOR MUCH OF MAY.

SUNDAY...AN UPPER RIDGE BUILDS OVER THE AREA...AND SHOULD SUPRESS
MUCH OF THE CONVECTION OVER THE PLAINS. EXPECT MORE DIURNAL
CONVECTION OVER THE MTS AND ADJACENT AREAS IN THE LATE AFTERNOON AND
EARLY EVE. TEMPS OVER THE PLAINS SHOULD GET INTO THE 80S...AND MAY
EVEN BUST THE STRING OF SUB-84 DEGREE DAYS AT KPUB.

MONDAY...THE UPPER RIDGE SHIFTS EWD AND A WEAK DISTURBANCE WILL PUSH
THROUGH CO OVER THE WEAKENING RIDGE. THIS WILL PROVIDE A SLIGHTLY
BETTER CHANCE OF AFTERNOON STORMS FOR MOST OF THE AREA...WITH SOME
LOCALLY HEAVY RAINFALL POSSIBLE. STORMS SHOULD STAY AT SUB-SVR
LEVELS. TEMPS REMAIN ON THE WARM SIDE WITH SOME UPPER 80S POSSIBLE
OVER THE PLAINS.

TUE-WED...SW FLOW KICKS IN AHEAD OF THE NEXT BIG PACIFIC TROUGH. THIS
WILL DRY US OUT AND KEEP US ON THE WARM SIDE. COULD SEE SOME AREAS
APPROACH 90 DEGREES OVER THE PLAINS...AS MOS GUIDANCE IS PRETTY
CLOSE TO 90 AT KLHX AND KLAA. HOWEVER...WILL STAY ON THE COOL SIDE
OF GUIDANCE...WHICH HAS BEEN TOO WARM DUE TO THE INCREASED MOISTURE
THAT THEY PLAINS HAVE SEEN THIS MONTH. STORMS WILL REMAIN DIURNAL
AND GENERALLY TIED TO THE HIGHER TERRAIN. GIVEN THE DRY SW
FLOW...EVEN THE MTS MAY SEE NO STORMS ON TUESDAY.

BY THU AND BEYOND...GLOBAL MODELS START TO DIVERGE. THE ECMWF IS
SIGNIFICANTLY MORE AMPLIFIED WITH THE UPSTREAM TROUGH AND HAS THE
JET MOVINGT INTO THE SRN AND CENTRAL ROCKIES. THE GFS IS FARTHER N
WITH THE JET. THE EC SOLUTION WOULD BRING A GREATER CHANCE OF SVR WX
TO THE PLAINS AND HIGHER POPS IN GENERAL. WITH THE
UNCERTAINTY...WILL STICK TO THE ENSEMBLE-BASED FORECAST
GRIDS...WHICH MAINTAIN SEASONALLY WARM WEATHER WITH LOW POPS MAINLY
OVER THE HIGHER TRRN. ROSE

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z SATURDAY EVENING)
ISSUED AT 257 PM MDT FRI MAY 29 2015

UPPER TROF MOVING ACROSS THE AREA THIS AFTERNOON AND
EVENING...WITH TSRA VICINITY OF KCOS UNTIL 00Z...AND NEAR KPUB
THROUGH ABOUT 02Z. CIGS WILL PRIMARILY BE VFR TO MVFR...WITH AREAS
OF MVFR/BRIEF IFR VIS UNDER STRONGER STORMS. -SHRA/-TSRA WILL
GRADUALLY DECREASE FROM NORTH TO SOUTH OVERNIGHT...THOUGH FAIRLY
WIDESPREAD MVFR STRATUS WILL LIKELY DEVELOP OVER THE PLAINS ALONG
AND EAST OF I-25 08Z-10Z... WITH SOME PATCHY IFR CIGS ALONG THE
PALMER DIVIDE AND RATON MESA.

ACROSS THE WESTERN MTS AND SAN LUIS VALLEY...INCLUDING KALS...TSRA
WILL BE MORE ISOLATED IN NATURE INTO THIS EVENING...ENDING FAIRLY
QUICKLY AROUND SUNSET. VFR CIGS WITH HIGHER BASED THUNDERSTORMS WILL
BE POSSIBLE...ALONG WITH GUSTY ERRATIC WINDS.

ON SATURDAY...VFR CONDITIONS ALL AREAS BY LATE MORNING WITH ONLY
SOME VERY ISOLATED AFTERNOON TSRA OVER THE MOUNTAINS.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...PETERSEN
LONG TERM...ROSE
AVIATION...PETERSEN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PUEBLO CO
1144 AM MDT FRI MAY 29 2015

COZ058>089-093>099-301745-
WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT-
LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT-
EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT-
WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT-
CENTRAL CHAFFEE COUNTY BELOW 9000 FT-
WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT-
SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT-
SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT-
LA GARITA MOUNTAINS ABOVE 10000 FT-
UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT-
EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT-
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-
WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
CANON CITY VICINITY/EASTERN FREMONT COUNTY-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE
BELOW 7400 FT-PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
CROWLEY COUNTY-LA JUNTA VICINITY/OTERO COUNTY-
EASTERN LAS ANIMAS COUNTY-WESTERN KIOWA COUNTY-
EASTERN KIOWA COUNTY-LAS ANIMAS VICINITY/BENT COUNTY-
LAMAR VICINITY/PROWERS COUNTY-SPRINGFIELD VICINITY/BACA COUNTY-
1144 AM MDT FRI MAY 29 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST
CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS
AFTERNOON THROUGH TONIGHT ACROSS THE SOUTHEAST MOUNTAINS AND
PORTIONS OF THE SOUTHEAST PLAINS. A FEW STORMS WILL BECOME STRONG
TO SEVERE IN AND NEAR THE SOUTHEAST MOUNTAINS AND ACROSS THE
PLAINS SOUTH OF HIGHWAY 50. HAIL TO AROUND 1 INCH IN DIAMETER OR
SLIGHTLY LARGER...WIND GUSTS TO NEAR 60 MPH...AND LOCALLY HEAVY
RAINFALL WILL BE THE PRIMARY STORM THREATS. LOCALIZED FLASH
FLOODING MAY ALSO BE POSSIBLE TODAY...PARTICULARLY IF THE
STRONGER THUNDERSTORMS IMPACT BURN SCARS OR AREAS WITH SATURATED
SOIL CONDITIONS FROM RECENT HEAVY RAINS.

THUNDERSTORMS WILL BE MORE ISOLATED TO SCATTERED ACROSS THE
MOUNTAINS AND INTERIOR VALLEYS THIS AFTERNOON...WITH THE MAIN
THREAT BEING BRIEF MODERATE RAINFALL...WIND GUSTS TO AROUND 50
MPH...AND LIGHTNING. SOME BRIEF SMALL HAIL UNDER 1/2 INCH IN
DIAMETER WILL BE POSSIBLE WITH THE STRONGEST STORMS. THE HIGHER
PEAKS ABOVE 12000 FEET COULD SEE LOCAL ACCUMULATIONS OF 2 TO 4
INCHES THROUGH TONIGHT.

AREA RIVERS AND CREEKS WILL CONTINUE TO RUN HIGH AND
FAST...ESPECIALLY WITH ADDITIONAL RAINFALL EXPECTED TODAY.  USE
CAUTION IN AND NEAR WATER WAYS AS BANKS ARE UNSTABLE AND FAST FLOWS
CAN BE EXTREMELY HAZARDOUS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE
POSSIBLE FROM SATURDAY INTO THURSDAY...ESPECIALLY OVER THE
MOUNTAINS. THE PRIMARY THREATS FROM THESE STORMS WILL BE
LIGHTNING...GUSTY WINDS...SMALL HAIL AND BRIEF PERIODS OF
HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL BE
POSSIBLE TODAY AND TONIGHT OVER MOST OF SOUTHERN COLORADO.

10/44

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
236 PM MDT FRI MAY 29 2015

COZ095>098-292115-
WESTERN KIOWA COUNTY CO-EASTERN KIOWA COUNTY CO-
LAMAR VICINITY/PROWERS COUNTY CO-LAS ANIMAS VICINITY/BENT COUNTY CO-
236 PM MDT FRI MAY 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN KIOWA...NORTHWESTERN
PROWERS AND NORTHERN BENT COUNTIES UNTIL 315 PM MDT...

AT 236 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
BLUE LAKE...OR 25 MILES NORTHEAST OF NORTH LA JUNTA...MOVING EAST AT
35 MPH.

NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WILEY...MCCLAVE...NEEOSHE RESERVOIR...NEEGRONDA RESERVOIR...BLUE
LAKE...ARLINGTON...QUEENS RESERVOIR AND SWEETWATER RESERVOIR.

LAT...LON 3821 10338 3839 10334 3834 10262 3807 10268
TIME...MOT...LOC 2036Z 279DEG 32KT 3830 10328

PGW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
256 PM MDT FRI MAY 29 2015

COZ086-089-093-292145-
CROWLEY COUNTY CO-LA JUNTA VICINITY/OTERO COUNTY CO-
PUEBLO VICINITY/PUEBLO COUNTY BELOW 6300 FEET CO-
256 PM MDT FRI MAY 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CROWLEY...
NORTHWESTERN OTERO AND EAST CENTRAL PUEBLO COUNTIES UNTIL 345 PM
MDT...

AT 255 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
FOWLER...OR 29 MILES WEST OF LA JUNTA...MOVING SOUTHEAST AT 25 MPH.

NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LA JUNTA...NORTH LA JUNTA...ROCKY FORD...FOWLER...SWINK...
MANZANOLA...OLNEY SPRINGS AND TIMPAS.

LAT...LON 3811 10419 3825 10405 3800 10355 3779 10376
TIME...MOT...LOC 2055Z 307DEG 24KT 3814 10405

PGW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
351 PM MDT FRI MAY 29 2015

COZ079-086-087-292230-
PUEBLO VICINITY/PUEBLO COUNTY BELOW 6300 FEET CO-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT CO-
WET MOUNTAINS BETWEEN 6300 AND 10000FT CO-
351 PM MDT FRI MAY 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HUERFANO...
SOUTHWESTERN PUEBLO AND EASTERN CUSTER COUNTIES UNTIL 430 PM MDT...

AT 351 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14
MILES NORTH OF GREENHORN MOUNTAIN...OR 23 MILES SOUTHWEST OF
PUEBLO...MOVING SOUTHEAST AT 15 MPH.

NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RYE...COLORADO CITY AND BEULAH.

LAT...LON 3807 10506 3816 10490 3782 10455 3771 10478
TIME...MOT...LOC 2151Z 321DEG 15KT 3808 10497

PGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
353 PM MDT FRI MAY 29 2015

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

0352 PM     HAIL             BEULAH                  38.08N 104.98W
05/29/2015  E1.00 INCH       PUEBLO             CO   TRAINED SPOTTER

&&

EP

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
439 PM MDT FRI MAY 29 2015

COZ079-086>088-292315-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT CO-
PUEBLO VICINITY/PUEBLO COUNTY BELOW 6300 FEET CO-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT CO-
WET MOUNTAINS BETWEEN 6300 AND 10000FT CO-
439 PM MDT FRI MAY 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL LAS ANIMAS...
NORTHEASTERN HUERFANO AND SOUTHWESTERN PUEBLO COUNTIES UNTIL 515 PM
MDT...

AT 437 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14
MILES EAST OF GREENHORN MOUNTAIN...OR 23 MILES SOUTH OF PUEBLO...
MOVING SOUTHEAST AT 35 MPH.

HEAVY RAINFALL...DIME SIZE HAIL AND WINDS IN EXCESS OF 50 MPH WILL
BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...COLORADO CITY AND OPEN COUNTRY OF
SOUTHERN PUEBLO COUNTY AND NORTHERN LAS ANIMAS AND HUERFANO COUNTIES.

LAT...LON 3756 10462 3794 10491 3806 10473 3778 10430
TIME...MOT...LOC 2237Z 322DEG 28KT 3795 10477

!