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National Weather Service:
Severe Thunderstorm Watch





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Current Conditions - Sisseton, SD

Clear
84°
Clear
Wind: 24 mph from the SSE
Dew Point: 54°F
Pressure: 29.51 in
Heat Index: 83°F
Humidity: 35%
Visibility: 10.0 miles
Updated: 5:36 PM CDT on May 22, 2012 at Wheaton NDB, Minnesota(KETH)
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Forecast for Sisseton

Tuesday
Partly cloudy. High of 88F. Windy. Winds from the SSE at 20 to 30 mph with gusts to 35 mph. Chance of rain 20%.
Tuesday Night
Partly cloudy with thunderstorms and rain showers in the evening, then mostly cloudy with thunderstorms and rain showers. Low of 63F. Windy. Winds from the South at 15 to 30 mph with gusts to 40 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Wednesday
Mostly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 72F. Winds from the West at 5 to 10 mph. Chance of rain 20%.

Conditions Nearby

  Conditions Temp Forecast: High / Low
Goose Creek Mostly Cloudy 79° 84° / 66°
Summerville Scattered Clouds 79° 86° / 64°
Ladson Mostly Cloudy 79° 84° / 66°
Moncks Corner Scattered Clouds 82° 86° / 68°
Charleston Mostly Cloudy 79° 84° / 66°
Wando Clear 81° 84° / 66°

5 Day Forecast for ZIP Code 57262

Tuesday Wednesday Thursday Friday Saturday
Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Partly Cloudy Chance of Rain
T-storms Chance of T-storms Chance of T-storms Partly Cloudy Chance of Rain
88° | 63°
Detail
Almanac		 72° | 52°
Detail
Almanac		 66° | 48°
Detail
Almanac		 68° | 48°
Detail
Almanac		 61° | 52°
Detail
Almanac

UV Index

  
5
 Tue 
  
3
 Wed 
  
3
 Thu 
More about UV

Extended Forecast for Sisseton

Wednesday Night
Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 52F. Winds less than 5 mph. Chance of rain 50%.
Thursday
Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 66F. Winds from the NNW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Thursday Night
Partly cloudy with a chance of a thunderstorm and a chance of rain, then a chance of rain after midnight. Low of 48F. Winds from the NW at 5 to 10 mph. Chance of rain 40%.
Friday
Partly cloudy. Fog early. High of 68F. Winds from the SW at 5 to 10 mph.
Friday Night
Overcast in the evening, then mostly cloudy. Low of 48F. Winds from the NNE at 5 to 10 mph.
Saturday
Overcast with a chance of rain. High of 61F. Winds from the NE at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Saturday Night
Partly cloudy with a chance of a thunderstorm. Low of 52F. Winds from the ENE at 5 to 10 mph shifting to the North after midnight. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Sunday
Mostly cloudy with a chance of rain. High of 88F. Winds from the South at 10 to 15 mph. Chance of rain 20%.
Sunday Night
Mostly cloudy with a chance of a thunderstorm. Low of 50F. Winds from the West at 5 to 10 mph. Chance of rain 20%.
Monday
Partly cloudy. High of 68F. Winds from the West at 10 to 15 mph.
Monday Night
Partly cloudy. Low of 43F. Winds from the WNW at 5 to 15 mph.
Tuesday
Partly cloudy. High of 79F. Winds from the NNW at 5 to 15 mph.
Tuesday Night
Partly cloudy. Low of 54F. Winds from the NNE at 5 to 10 mph.
Wednesday
Partly cloudy with a chance of rain. High of 70F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.
Wednesday Night
Partly cloudy. Low of 54F. Winds less than 5 mph. Chance of rain 20%.
Thursday
Partly cloudy with a chance of a thunderstorm. High of 72F. Winds less than 5 mph. Chance of rain 20%.
Thursday Night
Partly cloudy. Low of 57F. Winds less than 5 mph.
Friday
Partly cloudy. High of 73F. Winds less than 5 mph.
Friday Night
Partly cloudy with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 20%.
Saturday
Clear with a chance of rain. High of 73F. Winds less than 5 mph. Chance of rain 20%.
Saturday Night
Clear. Low of 57F. Winds less than 5 mph.

Weather Map - Satellite


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Almanac

Key: T = Trace of precipitation; MM = data not available
May 22, 2012
Normal high:72° Record high:92° (1964)
Normal low:48° Record low:27° (1963)
Sunrise:5:49 AM Moon Rise: 6:59 AM
Sunset:9:01 PM Moon Set: 10:40 PM
Complete weather almanac

Astronomy

Sunrise:05:49 AM (CDT) Moon Rise:06:59 AM (CDT)
Sunset:09:01 PM (CDT) Moon Set:10:40 PM (CDT)
Moon Phase
May. 22 May. 28 Jun. 04 Jun. 11 Jun. 19

Today's State Extremes

State Highs:

Pine Ridge 99°F
Philip 97°F
Winner 93°F
Pierre 93°F
Chamberlain 91°F

State Lows:

Custer 46°F
Rapid City 51°F
Faith 54°F
Buffalo 55°F
Pierre 55°F

Personal Weather Stations

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APRSWXNET Peever SD US, Beardsley, MN
Temp. Dew Point Humidity Wind Pressure Hourly Precip. Heat Index Updated
85°F 57°F 39% SW at 11 mph 29.44 in 0.00 in 84°F 5:25 PM CDT
Historical Data & Charts — Meteorological Assimilation Data Ingest System

MesoWest East side of northbound I29 befo SD US, New Effington, SD
Temp. Dew Point Humidity Wind Pressure Hourly Precip. Heat Index Updated
84°F 54°F 35% NNW at 37 mph in 0.00 in 83°F 5:16 PM CDT
Historical Data & Charts — Meteorological Assimilation Data Ingest System

RAWS MARSHALL CO SD US, Lake City, SD
Temp. Dew Point Humidity Wind Pressure Hourly Precip. Heat Index Updated
80°F 57°F 46% SSW at 27 mph in 0.00 in 80°F 4:59 PM CDT
Historical Data & Charts — Meteorological Assimilation Data Ingest System
Severe Thunderstorm Watch
Statement as of 5:55 PM CDT on May 22, 2012

The NWS Storm Prediction Center has issued a
Severe Thunderstorm Watch for portions of

       southern North Dakota
       central and northeast South Dakota

Effective this Tuesday afternoon and Wednesday morning from 555
PM until 100 am CDT.

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 80
statute miles east and west of a line from 80 miles north of
Aberdeen South Dakota to 10 miles east of Chamberlain South
Dakota. For a complete depiction of the watch see the associated
watch outline update (wous64 kwns wou1).

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 288... ww 289... ww 290...

Discussion... scattered thunderstorms are expected to continue to
increase in coverage and intensity this evening along a boundary
extending southward across central SD. These storms will track
east-northeastward across the watch area. Low level inhibition may
limit areal coverage of storms during the early evening... with
isolated supercells possible. However... storms should become more
numerous after dark as increasing large scale forcing overspreads
the area.

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 26030.


... Hart
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