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.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 274
NWS Storm Prediction Center Norman OK
505 PM CDT Thu Jul 12 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Iowa
Southern Minnesota
Western Wisconsin
* Effective this Thursday afternoon from 505 PM until Midnight
CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms are developing along a cold front extending
across south-central MN into western WI. A few of these storms will
pose a risk of locally damaging wind gusts and hail through the
evening.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 50 miles west of
Worthington MN to 50 miles east northeast of Eau Claire WI. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 273...
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 500. Mean storm motion vector
28025.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 274 SEVERE TSTM IA MN WI 122205Z - 130500Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
50W OTG/WORTHINGTON MN/ - 50ENE EAU/EAU CLAIRE WI/
..AVIATION COORDS.. 45NM N/S /9E FSD - 43ENE EAU/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28025.
LAT...LON 44369658 45869052 44419052 42919658
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 274 Status Report Messages:
STATUS REPORT #6 ON WW 274
VALID 130440Z - 130500Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N FSD TO
15 NE FRM TO 20 SSE FRM.
WW 274 WILL BE ALLOWED TO EXPIRE AT 130500Z.
..GLEASON..07/13/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130500-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC063-091-105-133-130500-
MN
. MINNESOTA COUNTIES INCLUDED ARE
JACKSON MARTIN NOBLES
ROCK
$$
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.
$$
STATUS REPORT #5 ON WW 274
VALID 130335Z - 130440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N FSD TO
25 WSW RST.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1049
..GLEASON..07/13/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130440-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC043-047-063-091-105-133-130440-
MN
. MINNESOTA COUNTIES INCLUDED ARE
FARIBAULT FREEBORN JACKSON
MARTIN NOBLES ROCK
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 274
VALID 130225Z - 130340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N FSD TO
30 S MKT TO 35 WNW RST TO 25 N LSE TO 35 W CWA.
..LEITMAN..07/13/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130340-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC039-043-047-063-091-105-109-133-147-169-130340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
DODGE FARIBAULT FREEBORN
JACKSON MARTIN NOBLES
OLMSTED ROCK STEELE
WINONA
$$
WIC053-130340-
WI
. WISCONSIN COUNTIES INCLUDED ARE
JACKSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 274
VALID 130130Z - 130240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N FSD TO
10 N OTG TO 25 NNW FRM TO 40 ESE MSP TO 25 SE EAU TO 45 S ASX.
..LEITMAN..07/13/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130240-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC013-039-043-047-049-063-091-105-109-131-133-147-157-161-165-
169-130240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
BLUE EARTH DODGE FARIBAULT
FREEBORN GOODHUE JACKSON
MARTIN NOBLES OLMSTED
RICE ROCK STEELE
WABASHA WASECA WATONWAN
WINONA
$$
WIC011-019-053-091-119-121-130240-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BUFFALO CLARK JACKSON
PEPIN TAYLOR TREMPEALEAU
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 274
VALID 130040Z - 130140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N FSD TO
20 NW OTG TO 15 NW MKT TO 15 NNW EAU TO 55 SSW ASX.
..LEITMAN..07/13/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130140-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC013-033-039-043-047-049-063-079-091-105-109-131-133-147-157-
161-165-169-130140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
BLUE EARTH COTTONWOOD DODGE
FARIBAULT FREEBORN GOODHUE
JACKSON LE SUEUR MARTIN
NOBLES OLMSTED RICE
ROCK STEELE WABASHA
WASECA WATONWAN WINONA
$$
WIC011-017-019-033-035-053-091-093-107-119-121-130140-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BUFFALO CHIPPEWA CLARK
DUNN EAU CLAIRE JACKSON
PEPIN PIERCE RUSK
TAYLOR TREMPEALEAU
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 274
VALID 122315Z - 130040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SSE BKX
TO 20 ESE RWF TO 30 WSW MSP TO 35 NNE MSP.
..LEITMAN..07/12/18
ATTN...WFO...FSD...MPX...ARX...
&&
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC119-143-167-130040-
IA
. IOWA COUNTIES INCLUDED ARE
LYON OSCEOLA SIOUX
$$
MNC013-015-019-033-037-039-043-047-049-063-079-091-101-103-105-
109-117-123-131-133-139-143-147-157-161-163-165-169-130040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
BLUE EARTH BROWN CARVER
COTTONWOOD DAKOTA DODGE
FARIBAULT FREEBORN GOODHUE
JACKSON LE SUEUR MARTIN
MURRAY NICOLLET NOBLES
OLMSTED PIPESTONE RAMSEY
RICE ROCK SCOTT
SIBLEY STEELE WABASHA
WASECA WASHINGTON WATONWAN
WINONA
$$
WIC005-011-017-019-033-035-053-091-093-095-107-109-119-121-
130040-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BARRON BUFFALO CHIPPEWA
CLARK DUNN EAU CLAIRE
JACKSON PEPIN PIERCE
POLK RUSK ST. CROIX
TAYLOR TREMPEALEAU
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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.