Alert archive / South Dakota / High Wind Warnings in 2009
High Wind Warning 1, NWS Aberdeen, SD
NWS Aberdeen, SD issued this high wind warning at May 13, 2009, 2:27 AM MDT for 5 counties in South Dakota. It took effect at May 13, 2009, 9:00 AM MDT. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 13, 2009, 2:27 AM MDT (08:27 UTC)
- In effect from
- May 13, 2009, 9:00 AM MDT
- Expired
- May 13, 2009, 8:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS Aberdeen, SD
Counties Corson County, SD, Dewey County, SD, Hughes County, SD, Stanley County, SD, Sully County, SD
The radar
The Aberdeen radar (KABR), 182 km from the middle of the area, began a volume at 08:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.5 hours before the alert went out and 211 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 281 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.5
What forecasters said that day
The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before this high wind warning went out at May 12, 8:59 PM MDT, 5 hours 28 minutes earlier.
Area forecast discussion, May 12, 8:59 PM MDT, 5 hours 28 minutes before
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</html>Hazardous weather outlook, May 12, 3:09 AM MDT, 23 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ABERDEEN SD 409 AM CDT TUE MAY 12 2009 SDZ003>006-009-010-015>018-033>037-045-048-051-130915- CORSON-CAMPBELL-MCPHERSON-BROWN-WALWORTH-EDMUNDS-DEWEY-POTTER- FAULK-SPINK-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-LYMAN-BUFFALO- 409 AM CDT TUE MAY 12 2009 /309 AM MDT TUE MAY 12 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND NORTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE LIKELY TUESDAY AFTERNOON THROUGH TUESDAY NIGHT. THERE IS A SLIGHT RISK THAT SOME OF THE STORMS COULD BECOME SEVERE. THE MAIN THREATS ARE LARGE HAIL...DAMAGING WINDS...AND LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A STRONG COLD FRONT WILL PUSH THROUGH THE AREA EARLY WEDNESDAY. BY WEDNESDAY AFTERNOON...IN THE WAKE OF THIS FRONT...WINDY CONDITIONS WILL DEVELOP WITH SUSTAINED WEST TO NORTHWEST WINDS OF 20 TO 30 MPH ARE LIKELY WITH GUSTS AS HIGH AS 45 TO 50 MPH. THE NEXT OPPORTUNITY FOR THUNDERSTORMS COMES FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING. MNZ039-046-SDZ007-008-011-019>023-130915- TRAVERSE-BIG STONE-MARSHALL-ROBERTS-DAY-CLARK-CODINGTON-GRANT- HAMLIN-DEUEL- 409 AM CDT TUE MAY 12 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL MINNESOTA AND NORTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT STRONG WINDS ARE EXPECTED ACROSS THE AREA TODAY. WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH WILL BE POSSIBLE THROUGH THE AFTERNOON HOURS...PARTICULARLY FOR THE HIGHER ELEVATIONS OF THE SISSETON HILLS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A STRONG COLD FRONT WILL PUSH THROUGH THE AREA EARLY WEDNESDAY. BY WEDNESDAY AFTERNOON...IN THE WAKE OF THIS FRONT...WINDY CONDITIONS WILL DEVELOP WITH SUSTAINED WEST TO NORTHWEST WINDS OF 20 TO 30 MPH ARE LIKELY WITH GUSTS AS HIGH AS 45 TO 50 MPH. THE NEXT OPPORTUNITY FOR THUNDERSTORMS COMES FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. CONNELLY
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 6:34 PM MDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 41 min |
| May 12, 6:58 PM MDT | Severe Thunderstorm Warning | ABR | Lyman | 32 min |
| May 12, 7:30 PM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 45 min |
| May 12, 7:41 PM MDT | Severe Thunderstorm Warning | ABR | Faulk, Potter | 49 min |
| May 12, 8:20 PM MDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hughes, Hyde, Potter, Sully | 11 min |
| May 12, 8:54 PM MDT | Severe Thunderstorm Warning | ABR | Spink | 13 min |
Nearby
High Wind Warnings in South Dakota, 2009Every high wind warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.