UPDATE: SEVERE THUNDERSTORM WARNING FROM 5:47PM MDT SUN UNTIL 6:30PM MDT SUN

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL NATRONA COUNTY IN CENTRAL WYOMING...

* UNTIL 630 PM MDT

* AT 546 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HOMA
HILLS...WHICH IS 9 MILES NORTH OF CASPER...MOVING NORTHEAST AT 30
MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING AND TREES.

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
ANTELOPE HILLS AROUND 550 PM MDT.

THIS INCLUDES INTERSTATE 25 BETWEEN MILE MARKERS 188 AND 207.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

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UPDATE: SIGNIFICANT WEATHER ADVISORY UNTIL 6PM MDT SUN

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NATRONA COUNTY UNTIL 600 PM MDT...

AT 513 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTHWEST OF EMIGRANT GAP...WHICH IS 16 MILES WEST OF CASPER...
MOVING NORTHEAST AT 40 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR... NATRONA COUNTY AIRPORT AROUND 520 PM MDT. HOMA HILLS AROUND 535 PM MDT. ANTELOPE HILLS AROUND 540 PM MDT. TEAPOT ROCK AROUND 555 PM MDT.

THIS INCLUDES INTERSTATE 25 BETWEEN MILE MARKERS 189 AND 223.

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UPDATE: SIGNIFICANT WEATHER ADVISORY UNTIL 5:45PM MDT SUN

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN NATRONA COUNTY UNTIL 545 PM MDT...

AT 453 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR RED BUTTE...WHICH IS 8 MILES SOUTHWEST OF CASPER...MOVING NORTHEAST AT 50 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR... BEARTRAP MEADOWS COUNTY PARK AROUND 500 PM MDT. MILLS AND BAR NUNN AROUND 505 PM MDT.
CASPER...EVANSVILLE AND EDNESS K WILKINS STATE PARK AROUND 510 PM
MDT.

THIS INCLUDES INTERSTATE 25 BETWEEN MILE MARKERS 176 AND 206.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

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SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL NATRONA COUNTY
UNTIL 500 PM MDT...

AT 413 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER INDEPENDENCE ROCK...WHICH IS 36 MILES EAST OF JEFFREY CITY...MOVING NORTHEAST AT 45 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...EMIGRANT GAP AROUND 500 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE POISON SPIDER
SCHOOL...BESSEMER BEND...ALCOVA U S BUREAU OF RECLAMATION POWER PLANT AND FREMONT CANYON U S BUREAU OF RECLAMATION POWER PLANT.

THIS INCLUDES INTERSTATE 90 NEAR MILE MARKER 42.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN RIVERTON.

IF ON OR NEAR ALCOVA AND PATHERFINDER RESERVOIRS AREA GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.