Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 705
NWS STORM PREDICTION CENTER NORMAN OK
800 PM MDT FRI AUG 14 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN MONTANA
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 800 PM
UNTIL 200 AM MDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTH OF
MILES CITY MONTANA TO 55 MILES NORTH NORTHEAST OF GLASGOW
MONTANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 702...WW 703...WW 704...
DISCUSSION...ISOLATED SEVERE STORMS WILL CONTINUE TO TRACK EASTWARD
ACROSS EASTERN MT FOR ANOTHER SEVERAL HOURS...IN ADVANCE OF
APPROACHING UPPER TROUGH. EASTERLY LOW LEVEL WINDS AND SUFFICIENT
INSTABILITY/SHEAR WILL MAINTAIN A RISK OF SUPERCELLS/BOWS WITH
DAMAGING WINDS AND LARGE HAIL POSSIBLE.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 24035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 705 SEVERE TSTM MT 150200Z - 150800Z
AXIS..95 STATUTE MILES EAST AND WEST OF LINE..
30S MLS/MILES CITY MT/ - 55NNE GGW/GLASGOW MT/
..AVIATION COORDS.. 85NM E/W /23S MLS - 48NNE GGW/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 24035.
LAT...LON 45970786 48930825 48930405 45970390
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 705 Status Report Messages:
STATUS REPORT #4 ON WW 705
VALID 150635Z - 150740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE BHK TO
35 WSW GDV TO 65 NNE OLF.
..MEAD..08/15/09
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 705
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC021-079-083-085-091-109-150740-
MT
. MONTANA COUNTIES INCLUDED ARE
DAWSON PRAIRIE RICHLAND
ROOSEVELT SHERIDAN WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 705
VALID 150540Z - 150640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE BHK TO
35 N MLS TO 35 SSW OLF TO 65 N OLF.
..MEAD..08/15/09
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 705
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC019-021-055-079-083-085-091-109-150640-
MT
. MONTANA COUNTIES INCLUDED ARE
DANIELS DAWSON MCCONE
PRAIRIE RICHLAND ROOSEVELT
SHERIDAN WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 705
VALID 150445Z - 150540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 70 E LWT TO
50 S GGW TO 10 ENE GGW TO 55 NNE GGW.
..PETERS..08/15/09
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 705
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC017-019-021-025-033-055-079-083-085-087-091-105-109-150540-
MT
. MONTANA COUNTIES INCLUDED ARE
CUSTER DANIELS DAWSON
FALLON GARFIELD MCCONE
PRAIRIE RICHLAND ROOSEVELT
ROSEBUD SHERIDAN VALLEY
WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 705
VALID 150345Z - 150440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 70 E LWT TO
15 SSW GGW TO 55 NNW GGW.
..PETERS..08/15/09
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 705
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC017-019-021-025-033-055-079-083-085-087-091-105-109-150440-
MT
. MONTANA COUNTIES INCLUDED ARE
CUSTER DANIELS DAWSON
FALLON GARFIELD MCCONE
PRAIRIE RICHLAND ROOSEVELT
ROSEBUD SHERIDAN VALLEY
WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
weather.gov 
