

000 

WGUS75 KRIW 210236

FFSRIW



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE RIVERTON WY

827 PM MDT FRI MAY 20 2005



WYC039-210400-

TETON WY-

827 PM MDT FRI MAY 20 2005



...A FLASH FLOOD WARNING CONTINUES UNTIL 1000 PM MDT FOR NORTHERN 

TETON COUNTY...



AT 825 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 

INDICATE FREQUENT SHOWERS AND THUNDERSTORMS MOVING NORTHEAST INTO 

NORTHERN TETON COUNTY...INCLUDING SOUTHERN YELLOWSTONE NATIONAL 

PARK. THESE SHOWERS WILL CONITNUE TO PRODUCE BRIEF HEAVY DOWNPOURS 

THIS EVENING. RADAR IS ESTIMATING WIDESPREAD HALF TO AN INCH AND A 

HALF RAINFALL AMOUNTS IN THIS AREA SINCE 3 PM. 



LOCATIONS OF GREATEST CONCERN CONTINUE TO BE ACROSS THE TETON 

RANGE...ESPECIALLY THE WEST FACING SLOPES. OTHER AREAS OF CONCERN 

EXTEND NORTHEAST INTO SOUTHERN PORTIONS OF YELLOWSTONE NATIONAL PARK 

FROM NORTH OF MORAN JUNCTION THROUGH THE SOUTH ENTRANCE TO WEST 

THUMB JUNCTION.



WITH EACH PASSING STORM...THE FLASH FLOOD THREAT WILL BE ON THE 

INCREASE. THIS RAINFALL ON TOP OF SOME MELTING HIGHER ELEVATION SNOW 

WILL ALSO ENHANCE POTENTIAL WATER RUNOFF. 



A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.

RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE

PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS

SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY

AUTOMOBILE.



REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT

1-800-211-1448.



LAT...LON 4369 11102 4374 11082 4411 11029 4432 11047

      4426 11100



$$



FRIEDERS



000 

WGUS75 KRIW 210240

FFSRIW



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE RIVERTON WY

827 PM MDT FRI MAY 20 2005



WYC039-210400-

TETON WY-

827 PM MDT FRI MAY 20 2005



...A FLASH FLOOD WARNING CONTINUES UNTIL 1000 PM MDT FOR NORTHERN 

TETON COUNTY...



AT 825 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 

INDICATE FREQUENT SHOWERS AND THUNDERSTORMS MOVING NORTHEAST INTO 

NORTHERN TETON COUNTY...INCLUDING SOUTHERN YELLOWSTONE NATIONAL 

PARK. THESE SHOWERS WILL CONTINUE TO PRODUCE BRIEF HEAVY DOWNPOURS 

THIS EVENING. RADAR IS ESTIMATING WIDESPREAD HALF TO AN INCH AND A 

HALF RAINFALL AMOUNTS IN THIS AREA SINCE 3 PM. 



LOCATIONS OF GREATEST CONCERN CONTINUE TO BE ACROSS THE TETON 

RANGE...ESPECIALLY THE WEST FACING SLOPES. OTHER AREAS OF CONCERN 

EXTEND NORTHEAST INTO SOUTHERN PORTIONS OF YELLOWSTONE NATIONAL PARK 

FROM NORTH OF MORAN JUNCTION THROUGH THE SOUTH ENTRANCE TO WEST 

THUMB JUNCTION.



WITH EACH PASSING STORM...THE FLASH FLOOD THREAT WILL BE ON THE 

INCREASE. THIS RAINFALL ON TOP OF SOME MELTING HIGHER ELEVATION SNOW 

WILL ALSO ENHANCE POTENTIAL WATER RUNOFF. 



A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.

RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE

PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS

SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY

AUTOMOBILE.



REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT

1-800-211-1448.



LAT...LON 4369 11102 4374 11082 4411 11029 4432 11047

      4426 11100



$$



FRIEDERS

