Severe Thunderstorm Warning 40, NWS Bismarck, ND

648 
WWUS53 KBIS 090831
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
331 AM CDT SAT JUN 9 2012

NDC023-053-105-090900-
/O.CON.KBIS.SV.W.0040.000000T0000Z-120609T0900Z/
WILLIAMS ND-DIVIDE ND-MCKENZIE ND-
331 AM CDT SAT JUN 9 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
MCKENZIE...DIVIDE AND WILLIAMS COUNTIES UNTIL 400 AM CDT/300 AM
MDT/...

AT 324 AM CDT/224 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE 
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 10 MILES WEST OF 
DAGMAR TO BAINVILLE TO CARTWRIGHT...MOVING NORTHEAST AT 50 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

VERY HEAVY RAIN IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4901 10315 4781 10311 4756 10405 4900 10406
TIME...MOT...LOC 0830Z 228DEG 43KT 4868 10432 4822 10407
          4784 10384
WIND...HAIL 60MPH 1.00IN

$$

TM

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
1240 AM CDT SAT JUN 9 2012

.DISCUSSION...

FLASH FLOOD WATCH FOR NORTHWESTERN AND NORTH CENTRAL NORTH DAKOTA
THROUGH SUNDAY MORNING STILL ON TRACK.

MODEL SOUNDINGS FROM 00Z NAM MODEL RUN ARE VERY WELL CAPPED FRIDAY
EVENING ACROSS WESTERN NORTH DAKOTA. AS PER PREVIOUS DISCUSSION FEEL
THE THREAT OF THUNDERSTORMS WILL BE THIS EARLY MORNING PERIOD FROM
AFTER 1-3 AM CDT. THUNDERSTORM ACTIVITY REMAINS ROBUST ACROSS
EASTERN MONTANA IN THE VICINITY OF THE SURFACE TROUGH/COLD FRONT
THAT EXTENDED FROM A LOW IN EASTERN WYOMING NORTHWARD THROUGH THE
GLASGOW AREA AND INTO SOUTH CENTRAL SASKATCHEWAN. KEPT THE HIGH
CHANCES FOR PRECIPITATION ACROSS NORTHWESTERN NORTH DAKOTA...AS
MODELS MOVE THE FRONT EASTWARD INTO NORTH DAKOTA AND THE
ACCOMPANYING INCREASING INSTABILITY WILL REACH THE WESTERN PART OF
THE STATE DURING THE NIGHTTIME HOURS...BREAKING THE THERMAL CAP.
MOISTURE STILL IN A POSITION TO FLOW NORTH INTO THE WESTERN PORTION
OF THE FLASH FLOOD WATCH REGION (NORTHWESTERN AND NORTH CENTRAL
NORTH DAKOTA) IN THE NEXT FEW HOURS...THEN SPREAD INTO NORTH CENTRAL
NORTH DAKOTA TOWARDS/AFTER DAYBREAK.

&&

.AVIATION...

MAIN HAZARDS TO AVIATION FRIDAY NIGHT FOCUS ON THUNDERSTORMS. AT
1130 PM CDT...A WARM FRONT CONTINUED ACROSS SOUTHERN NORTH DAKOTA
INTO MONTANA WHERE IT BECOMES ASSOCIATED WITH A COLD FRONT. THE COLD
FRONT AND WARM FRONTAL BOUNDARIES WILL BECOME THE FOCUS FOR
THUNDERSTORM DEVELOPMENT AFTER 07Z/2 AM CDT FROM KISN-KMOT. MVFR
CONDITIONS IN RAIN...AND OCNL IFR CONDITIONS AFTER 12Z/7 AM CDT DUE
TO LOW CEILINGS BETWEEN KMOT-KISN AFTER 10Z/5 AM CDT. THUNDERSTORMS
AGAIN LATE SATURDAY NIGHT CENTRAL AND EASTERN NORTH DAKOTA.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR NDZ001>005-009>013-
017>019-021-022-031-032.

&&

DISCUSSION...JV
AVIATION...WAA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
552 PM CDT FRI JUN 8 2012

NDZ001>005-009>013-017>019-021-022-031>033-040-041-043-044-092300-
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-MCLEAN-SHERIDAN-GOLDEN VALLEY-
BILLINGS-STARK-SLOPE-HETTINGER-BOWMAN-ADAMS-
552 PM CDT FRI JUN 8 2012 /452 PM MDT FRI JUN 8 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH
DAKOTA AND SOUTHWEST NORTH DAKOTA.

.DAY ONE...TONIGHT

AN APPROACHING UPPER LEVEL LOW MOVING FROM THE ROCKIES TO THE
NORTHERN PLAINS...COMBINED WITH INCREASING LOW LEVEL MOISTURE...
WILL RESULT IN A THREAT OF SEVERE WEATHER TONIGHT. HEAVY RAIN IS
POSSIBLE ACROSS THE WEST CENTRAL AND NORTH...AND LARGE HAIL AND
DAMAGING WINDS ARE A THREAT WEST...ALONG WITH AN ISOLATED TORNADO
AS WELL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE CHANCE OF THUNDERSTORMS CONTINUES SATURDAY AND SUNDAY AS THE
UPPER LEVEL LOW MOVES EASTWARD SLOWLY ACROSS THE REGION.
INSTABILITY IS EXPECTED TO BE HIGH ENOUGH ON SATURDAY FOR THE
CHANCE OF SEVERE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED.

NDZ020-023-025-034>037-042-045>048-050-051-092300-
OLIVER-WELLS-FOSTER-MORTON-BURLEIGH-KIDDER-STUTSMAN-GRANT-SIOUX-
EMMONS-LOGAN-LA MOURE-MCINTOSH-DICKEY-
552 PM CDT FRI JUN 8 2012 /452 PM MDT FRI JUN 8 2012/

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A CHANCE OF THUNDERSTORMS SATURDAY AND SUNDAY AS AN UPPER
LEVEL LOW PRESSURE SYSTEM MOVES SLOWLY EAST ACROSS THE REGION.
INSTABILITY IS EXPECTED TO BE HIGH ENOUGH ON SATURDAY FOR THE
CHANCE OF SEVERE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED.

WAA