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.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 340
NWS STORM PREDICTION CENTER NORMAN OK
1120 PM CDT SAT JUN 6 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN IOWA
NORTHEAST KANSAS
NORTHERN MISSOURI
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1120 PM
UNTIL 500 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST
NORTHWEST OF SAINT JOSEPH MISSOURI TO 20 MILES SOUTH SOUTHEAST OF
OTTUMWA IOWA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
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 339...
DISCUSSION...LARGE CLUSTER OF SEVERE THUNDERSTORMS OVER NORTHEAST KS
AND SOUTHEAST NEB MAY PERSIST FOR SEVERAL HOURS AND TRACK
NORTHEASTWARD ACROSS THE WATCH AREA. STORMS ARE MOVING AT OVER 40
KNOTS...AND WILL POSE A THREAT OF LOCALLY DAMAGING WINDS AND LARGE
HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25040.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 340 SEVERE TSTM IA KS MO 070420Z - 071000Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
40WNW STJ/SAINT JOSEPH MO/ - 20SSE OTM/OTTUMWA IA/
..AVIATION COORDS.. 60NM N/S /30ESE PWE - 44NNE IRK/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25040.
LAT...LON 41009562 41849230 39819230 38979562
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 340 Status Report Messages:
STATUS REPORT #5 ON WW 340
VALID 070950Z - 071000Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE IRK
TO 30 E LWD TO 15 NE CDJ TO 15 WSW CDJ TO 15 E STJ TO 5 NE STJ TO
20 SW SDA TO 15 SW SDA TO 30 ESE SDA TO 40 NE SDA.
WW 340 MAY BE EXTENDED IN TIME BEYOND EXPIRATION OF 071000Z.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 968.
..PETERS..06/07/09
ATTN...WFO...DMX...EAX...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-029-039-051-053-117-121-123-125-135-159-173-175-
179-181-185-071000-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CASS CLARKE DAVIS
DECATUR LUCAS MADISON
MAHASKA MARION MONROE
RINGGOLD TAYLOR UNION
WAPELLO WARREN WAYNE
$$
MOC003-005-061-063-075-079-081-129-147-227-071000-
MO
. MISSOURI COUNTIES INCLUDED ARE
ANDREW ATCHISON DAVIESS
DEKALB GENTRY GRUNDY
HARRISON MERCER NODAWAY
WORTH
$$
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.
$$
STATUS REPORT #4 ON WW 340
VALID 070825Z - 070940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE IRK
TO 30 E LWD TO 15 NE CDJ TO 15 WSW CDJ TO 15 E STJ TO 5 NNE STJ
TO 25 N FNB.
..PETERS..06/07/09
ATTN...WFO...DMX...EAX...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-015-027-029-039-049-051-053-073-077-099-117-
121-123-125-127-135-153-157-159-169-171-173-175-179-181-185-
070940-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BOONE CARROLL
CASS CLARKE DALLAS
DAVIS DECATUR GREENE
GUTHRIE JASPER LUCAS
MADISON MAHASKA MARION
MARSHALL MONROE POLK
POWESHIEK RINGGOLD STORY
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
$$
MOC003-005-061-063-075-079-081-129-147-227-070940-
MO
. MISSOURI COUNTIES INCLUDED ARE
ANDREW ATCHISON DAVIESS
DEKALB GENTRY GRUNDY
HARRISON MERCER NODAWAY
WORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 340
VALID 070740Z - 070840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 S FLV TO
5 N STJ TO 25 N STJ TO 15 N FNB.
..PETERS..06/07/09
ATTN...WFO...DMX...EAX...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-015-027-029-039-049-051-053-073-077-099-117-
121-123-125-127-135-153-157-159-169-171-173-175-179-181-185-
070840-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BOONE CARROLL
CASS CLARKE DALLAS
DAVIS DECATUR GREENE
GUTHRIE JASPER LUCAS
MADISON MAHASKA MARION
MARSHALL MONROE POLK
POWESHIEK RINGGOLD STORY
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
$$
KSC209-070840-
KS
. KANSAS COUNTIES INCLUDED ARE
WYANDOTTE
$$
MOC001-003-005-021-025-033-041-047-049-061-063-075-079-081-115-
117-121-129-147-165-171-177-197-211-227-070840-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR ANDREW ATCHISON
BUCHANAN CALDWELL CARROLL
CHARITON CLAY CLINTON
DAVIESS DEKALB GENTRY
GRUNDY HARRISON LINN
LIVINGSTON MACON MERCER
NODAWAY PLATTE PUTNAM
RAY SCHUYLER SULLIVAN
WORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 340
VALID 070645Z - 070740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 966.
..PETERS..06/07/09
ATTN...WFO...DMX...EAX...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-015-027-029-039-049-051-053-073-077-099-117-
121-123-125-127-135-153-157-159-169-171-173-175-179-181-185-
070740-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BOONE CARROLL
CASS CLARKE DALLAS
DAVIS DECATUR GREENE
GUTHRIE JASPER LUCAS
MADISON MAHASKA MARION
MARSHALL MONROE POLK
POWESHIEK RINGGOLD STORY
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
$$
KSC005-043-103-209-070740-
KS
. KANSAS COUNTIES INCLUDED ARE
ATCHISON DONIPHAN LEAVENWORTH
WYANDOTTE
$$
MOC001-003-005-021-025-033-041-047-049-061-063-075-079-081-087-
115-117-121-129-147-165-171-177-197-211-227-070740-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR ANDREW ATCHISON
BUCHANAN CALDWELL CARROLL
CHARITON CLAY CLINTON
DAVIESS DEKALB GENTRY
GRUNDY HARRISON HOLT
LINN LIVINGSTON MACON
MERCER NODAWAY PLATTE
PUTNAM RAY SCHUYLER
SULLIVAN WORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 340
VALID 070555Z - 070640Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 966.
..PETERS..06/07/09
ATTN...WFO...DMX...EAX...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-029-039-051-053-099-117-121-123-125-135-153-157-
159-173-175-179-181-185-070640-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CASS CLARKE DAVIS
DECATUR JASPER LUCAS
MADISON MAHASKA MARION
MONROE POLK POWESHIEK
RINGGOLD TAYLOR UNION
WAPELLO WARREN WAYNE
$$
KSC005-043-103-209-070640-
KS
. KANSAS COUNTIES INCLUDED ARE
ATCHISON DONIPHAN LEAVENWORTH
WYANDOTTE
$$
MOC001-003-005-021-025-033-041-047-049-061-063-075-079-081-087-
115-117-121-129-147-165-171-177-197-211-227-070640-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR ANDREW ATCHISON
BUCHANAN CALDWELL CARROLL
CHARITON CLAY CLINTON
DAVIESS DEKALB GENTRY
GRUNDY HARRISON HOLT
LINN LIVINGSTON MACON
MERCER NODAWAY PLATTE
PUTNAM RAY SCHUYLER
SULLIVAN WORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (50%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (50%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (50%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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.
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