Flash Flood Warning 2, NWS Grand Junction, CO

770 
RWUS32 KGJT 200442
FFSGJT
UTC037-200615-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1038 PM MDT SAT JUL 19 2003

...FLASH FLOOD WARNING UNTIL 1215 AM MDT FOR CENTRAL SAN JUAN
COUNTY IN SOUTHEAST UTAH...

A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 12:15 AM
FOR CENTRAL SAN JUAN COUNTY IN SOUTHEAST UTAH. SHOWERS AND
THUNDERSTORMS HAVE WEAKENED AND MOVED OUT OF THE DARK CANYON
WILDERNESS AREA. HOWEVER...RUNOFF FROM THE HEAVY RAINS EARLIER WILL
STILL CAUSE FLASH FLOODING IN STEEP CANYONS...STREAMS AND CREEK BEDS
AS THE WATER CONTINUES DOWNSTREAM FROM THIS AREA. THE HEAVY RAINS
COULD ALSO TRIGGER ROCK AND MUDSLIDES.

MOVE TO HIGHER GROUND IMMEDIATELY IF YOU ARE IN A LOW LYING OR
FLOOD PRONE AREA. PERSONS RECREATING ALONG STREAMS AND CREEKS SHOULD
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT
ATTEMPT TO CROSS FAST MOVING WATER OR WATER OF UNKNOWN DEPTH.
$$

TAL

981 
RWUS32 KGJT 200610
FFSGJT
UTC037-200630-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1210 AM MDT SUN JUL 20 2003

...FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR CENTRAL SAN JUAN IN 
SOUTHEAST UTAH HAS BEEN ALLOWED TO EXPIRE...

THE HEAVY RAIN HAS ENDED OVER CENTRAL SAN JUAN COUNTY IN SOUTHEAST 
UTAH. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE 
BEGINNING TO RECEDE...ENDING THE FLASH FLOODING THREAT. EVEN THOUGH 
STREAM AND CREEK LEVELS ARE NOW FALLING...SOME ROADWAYS MAY STILL BE 
COVERED WITH WATER. MOTORISTS ARE ADVISED TO AVOID DRIVING THROUGH 
FLOODED ROADWAYS.

$$

COLTON

WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
219 PM MDT SAT JUL 19 2003

SHORT TERM DISCUSSION (TONIGHT-SUNDAY NIGHT)...RIDGE OVER THE
INTERMOUNTAIN WEST WILL SLOWLY SHIFT WEST OVER THE GREAT BASIN
THROUGH EARLY MONDAY. ETA MODEL CROSS SECTIONS SHOWING INCREASED MID-
LEVEL MOISTURE THROUGH THIS PERIOD. MOISTURE AND SEVERAL WEAK
WAVES ARE GENERATING CONVECTION OVER THE CWA THIS AFTERNOON. WITH
LITTLE SHEAR EXPECT SLOW MOVEMENT OF STORMS..MAIN FORECAST CONCERN
WILL BE LIGHTNING AND LOCALLY HEAVY RAIN IN SOME LOCATIONS. ADEQUATE
MOISTURE AND FORCING WILL ALLOW CONVECTION TO CONTINUE AFTER
MIDNIGHT. AFTER PARTIAL CLEARING LATE TONIGHT AND SUNDAY MORNING...
EXPECT ANOTHER ROUND OF CONVECTION SUNDAY AFTERNOON AND EVENING. LOW
LEVEL FLOW BECOMES MORE NORTHERLY WITH H7 TEMPS COOLING 1-2 DEGREES.
WITH CLOUDS AND SLIGHT COOLING ALOFT...TEMPS MAY HAVE A DIFFICULT
TIME REACHING A RECORD TYING TENTH DAY IN ROW OF 100 OR MORE DEGREES
FOR GRAND JUNCTION. WITH MID-LEVEL DRYING BY LATE SUNDAY NIGHT...
PARTIAL CLEARING IS EXPECTED.

MONDAY...NORTHERLY FLOW INTENSIFIES...CONCURRENTLY WITH SOME
DRYING ALOFT. TEMPERATURES LIKELY TO BE A BIT COOLER AS WELL. LIKE
THE CURRENT TREND OF SCATTERED MTN CONVECTION WITH ISOLATED CHANCE
VALLEYS.

TUESDAY-THURSDAY...MEDIUM RANGE MODELS REMAIN IN GOOD AGREEMENT
WITH THE HIGH PRESSURE CELL BEING NUDGED WESTWARD AS DEEP TROF GETS
CARVED OUT OVER THE GREAT LAKES. THIS IS EXPECTED TO BRING A DRIER
MORE NORTHERLY UPPER LEVEL FLOW ALOFT TO OUR REGION. MDLS INDICATE
HIGH TO BE CENTERED OVER THE NRN GREAT BASIN. THIS NRN POSITION WILL
GREATLY LIMIT ITS ABILITY TO PULL SUBTROPICAL MSTR NORTHWARD...BUT
LOW LEVEL CIRCULATION AND RESIDUAL MOISTURE TRAPPED UNDER THE RIDGE
WILL KEEP SCATTERED TSTM COVERAGE OVER THE MTNS. HIGH PRESSURE WILL
SHIFT SOUTHWARD WEDNESDAY AND THURSDAY AS SIGNIFICANT SHORT WAVE
ENERGY TRAVERSES CANADA. THIS WILL ALLOW FOR A SLOW INCREASE IN
SUBTROPICAL MOISTURE. TEMPERATURES TO REMAIN ABOVE NORMAL. MC

FRIDAY-SATURDAY...STRONG UPPER LEVEL HIGH PRESSURE PROGGED
TO REMAIN CENTERED OVER THE FOUR CORNERS VICINITY. GFS CONTINUES TO
ADVERTISE A SHORTWAVE BRUSHING THE NORTH OVER THE WEEKEND....
FLATTENING THE RIDGE. THIS MAY COOL THINGS OFF A LITTLE...BUT A LONG
WAYS OUT. WILL CONTINUE WITH ABOVE NORMAL TEMPERATURES WITH AFTERNOON
AND EVENING CONVECTION. TAL

.GJT...NONE.

COZ001>014-017>023-UTZ022>025-027>029-201145-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
545 AM MDT SAT JUL 19 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN COLORADO AND FOR
EASTERN UTAH

.DAY ONE...TODAY AND TONIGHT...

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE MOUNTAINS
OF WESTERN COLORADO AND EASTERN UTAH THIS AFTERNOON AND CONTINUE
THROUGH LATE TONIGHT. ISOLATED THUNDERSTORMS WILL OCCUR OVER THE
VALLEYS TODAY AND TONIGHT. A FEW THUNDERSTORMS MAY BE DRY IN
NATURE...BUT THE MAJORITY OF THE STORMS THAT FORM SHOULD BRING
WETTING RAINS.  DUE TO THE SLOW MOVEMENT OF THE STORMS...A FEW MAY
PRODUCE LOCALLY HEAVY RAINFALL...CAUSING SUDDEN RISES OF DRY
CREEKS AND SMALL STREAMS. IN ADDITION...GUSTY WINDS TO NEAR 50
MPH...CLOUD TO GROUND LIGHTNING AND SMALL HAIL UP TO 1/4 INCH WILL
ACCOMPANY THE STRONGER STORMS.

HOT TEMPERATURES WILL ALSO CONTINUE OVER THE LOWER VALLEYS TODAY...
WITH AFTERNOON HIGH TEMPERATURES RANGING FROM 98 TO 108 DEGREES
FAHRENHEIT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE EACH AFTERNOON
AND EVENING. THE MAIN THREATS FROM THESE STORMS WILL BE CLOUD TO
GROUND LIGHTNING...WIND GUSTS TO 50 MPH AND BRIEF HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS WILL NOT BE NEEDED TODAY OR TONIGHT. HOWEVER...
SPOTTERS ARE ENCOURAGED TO PHONE IN REPORTS OF STRONG WINDS...HAIL
AND ANY SUDDEN RISES OF SMALL CREEKS AND STREAMS.

COLTON