Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE BILLINGS MT
335 PM MDT SUN MAY 19 2013

...FLASH FLOOD AND DEBRIS FLOW POTENTIAL IN AREAS BURNED BY
WILDFIRES LAST YEAR ACROSS SOUTH CENTRAL AND SOUTHEAST MONTANA...

.MODERATE TO HEAVY RAIN TONIGHT THROUGH MONDAY NIGHT COULD CAUSE
RAPID RUNOFF...FLASH FLOODING...AND DEBRIS FLOWS IN AND AROUND THE
AREAS BURNED BY WILDFIRES LAST YEAR.

MTC003-011-065-075-087-103-202145-
/O.CON.KBYZ.FF.A.0002.000000T0000Z-130521T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BIG HORN-CARTER-MUSSELSHELL-POWDER RIVER-ROSEBUD-TREASURE-
INCLUDING THE CITIES OF...HARDIN...CROW AGENCY...EKALAKA...
ROUNDUP...BROADUS...COLSTRIP...LAME DEER...FORSYTH...HYSHAM
335 PM MDT SUN MAY 19 2013

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE MONDAY
NIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF CENTRAL MONTANA...SOUTH CENTRAL MONTANA AND
  SOUTHEAST MONTANA...INCLUDING THE FOLLOWING COUNTIES...IN
  CENTRAL MONTANA...MUSSELSHELL. IN SOUTH CENTRAL MONTANA... BIG
  HORN. IN SOUTHEAST MONTANA...CARTER...POWDER RIVER... ROSEBUD
  AND TREASURE.

* THROUGH LATE MONDAY NIGHT

* MODERATE TO HEAVY RAINFALL IS EXPECTED TONIGHT THROUGH MONDAY
  NIGHT. IT ONLY TAKES A HALF INCH OF RAIN IN A SHORT PERIOD OF
  TIME TO CAUSE FLASH FLOODING AND DEBRIS FLOWS IN AND DOWNSTREAM
  OF AREAS AFFECTED BY WILDFIRES.

* THE AREAS AT RISK ARE WITHIN...DOWNSTREAM OR DOWNSLOPE OF BURN
  AREAS FROM THE WILDFIRES WHICH OCCURRED LAST YEAR. THIS
  INCLUDES THE DAHL...WILSON...DELPHIA...SARPY HILL...COAL
  SEAM... CHALKY...SAND CREEK...ASH CREEK...TAYLOR...DUTCH...
  AND DUGAN FIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING AND DEBRIS FLOWS ARE VERY DANGEROUS. BE AWARE OF
YOUR ENVIRONMENT. BE PREPARED TO TAKE ACTION ON SHORT NOTICE IF
HEAVY RAINFALL OCCURS. BECAUSE FLASH FLOODS IN THESE AREAS OCCUR
SO QUICKLY...DO NOT WAIT FOR A WARNING TO TAKE ACTION.

&&

$$

Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
252 PM MDT SUN MAY 19 2013

MTZ028>042-056>058-063>068-WYZ098-099-202100-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
252 PM MDT SUN MAY 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TONIGHT

MODERATE TO LOCALLY HEAVY RAINFALL CONTINUES ACROSS MUCH OF THE
AREA.

FLASH FLOODING AND DEBRIS FLOWS ARE POSSIBLE IN AND AROUND THE
AREAS BURNED BY WILDFIRES LAST YEAR. EXTENSIVE RAINFALL ACROSS THE
REGION IS CAUSING RISES IN AREA CREEKS AND STREAMS...ESPECIALLY
IN MOUNTAIN REGIONS. PLEASE PAY CLOSE ATTENTION TO RISING WATERS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MODERATE TO LOCALLY HEAVY RAINFALL WILL CONTINUE MONDAY AND EVEN
INTO MONDAY NIGHT...ESPECIALLY ACROSS SOUTHEAST MONTANA. THERE
WILL CONTINUE TO BE A RISK OF FLASH FLOODING AND DEBRIS FLOWS IN
AND AROUND THE AREAS BURNED BY WILDFIRES LAST YEAR. EXTENSIVE
RAINFALL ACROSS THE REGION WILL CONTINUE TO CAUSE RISES IN AREA
CREEKS AND STREAMS...ESPECIALLY IN MOUNTAIN REGIONS. PLEASE PAY
CLOSE ATTENTION TO RISING WATERS.


.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
242 PM MDT SUN MAY 19 2013

MTZ016>027-059>062-201100-
CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-
DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-GARFIELD-MCCONE-
RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS-
SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT-
242 PM MDT SUN MAY 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A BROAD STORM SYSTEM WILL CONTINUE TO PRODUCE STEADY PERIODS OF
RAIN SHOWERS AND ISOLATED THUNDERSTORMS. TOTAL RAINFALL AMOUNTS
THROUGH TONIGHT MAY EXCEED ONE INCH IN SOME LOCATIONS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

PERIODS OF STEADY RAIN SHOWERS WILL CONTINUE THROUGH MONDAY NIGHT.
THE HEAVIEST AMOUNTS OF RAINFALL DURING THIS TIME PERIOD WILL
LIKELY OCCUR OVER THE EASTERN HALF OF NORTHEAST MONTANA.
ADDITIONAL RAINFALL AMOUNTS THERE MAY EXCEED ONE INCH IN ISOLATED
SPOTS.

STRONG WIND WILL ALSO DEVELOP OVER THE EASTERN AREAS OF NORTHEAST
MONTANA ON MONDAY. THIS STRONG WIND MAY AFFECT SOME AREAS OF FORT
PECK LAKE...POSSIBLY STRONG ENOUGH FOR A WIND ADVISORY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT SUN MAY 19 2013

WYZ001>020-022>030-201200-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
500 AM MDT SUN MAY 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

RAIN IN THE LOWER ELEVATIONS...AND SNOW IN THE MOUNTAINS...WITH THE
HEAVIEST PRECIPITATION ALONG AND EAST OF THE DIVIDE. ACCUMULATING
SNOW IS EXPECTED IN THE MOUNTAINS OVER 8000 FEET...WITH MOUNTAIN
PASSES SLICK AT TIMES...ESPECIALLY DURING THE OVERNIGHT HOURS.
ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE. THE PROLONGED PERIOD OF
LIGHT TO OCCASIONAL HEAVY RAINFALL IN SOME AREAS COULD CAUSE MINOR
FLOODING IN LOW LYING OR POOR DRAINAGE AREAS...AS WELL AS...AROUND
BURN SCAR AREAS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MONDAY...SHOWERS WILL REMAIN LIKELY OVER CENTRAL WYOMING WITH
HIGHER ELEVATION SNOW ONCE AGAIN EXPECTED.

WEDNESDAY AND THURSDAY...STRONG THUNDERSTORMS POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY MOUNTAIN SNOWFALL AMOUNTS...
RAIN TOTALS...ANY FLOODING...AS WELL AS ANY CREEKS OR STREAMS THAT
ARE BANKFULL OR RISING FAST. THANK YOU.

$$

TEAM RIVERTON