Alert archive / Minnesota / Special Weather Statements in 2018
Special Weather Statement, NWS Aberdeen, SD
NWS Aberdeen, SD issued this special weather statement at Aug 6, 2018, 3:36 PM CDT for Traverse County, Minnesota. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2018, 3:36 PM CDT (20:36 UTC)
- Expired
- Aug 6, 2018, 4:00 PM CDT
- In force
- 24 min
- Issued by
- NWS Aberdeen, SD
County Traverse County, MN
The radar
The Aberdeen radar (KABR), 166 km from the middle of the area, began a volume at 20:38 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
Aberdeen, SD (KABR), launched 12:00Z, 8.6 hours before the alert went out and 188 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
- 115 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 1491 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 2:04 PM CDT, 1 hour 32 minutes earlier.
Area forecast discussion, Aug 6, 2:04 PM CDT, 1 hour 32 minutes before
Area Forecast Discussion National Weather Service Aberdeen SD 204 PM CDT Mon Aug 6 2018 .SHORT TERM...(This Evening through Tuesday) Issued at 204 PM CDT Mon Aug 6 2018 Pcpn chances remain the biggest challenge through tonight. The latest models, both CAM and non-CAM suggest a couple areas of heightened shower/storm activity into the evening and overnight hours. The first area is over the northeast CWA. This is where the models and latest SPC meso data suggest a moisture/instability axis will continue to set up through early evening. 88D currently shows activity over this region, and suspect isold/sct activity will continue into the evening hours. Shear is pretty weak, but instability per MLCAPEs approaching or exceeding 1k J/kg suggests at least weak to moderate instability to work with. The next area of concern is southwest and south central South Dakota. It appears that convection forming over the Black Hills will spread out into the plains, and then move across the southern third of the state this evening and tonight, perhaps forming into a relatively small MCS in the process. This activity could feed off of better deep layer shear per strong H5 winds across Nebraska and far southern South Dakota. The best chance for isolated svr weather this evening would be along and south of I90. .LONG TERM...(Tuesday Night through Monday) Issued at 204 PM CDT Mon Aug 6 2018 Mostly dry with above normal temperatures will be the rule this period. The overall 500mb pattern shows low pressure over north central Canada, with a trough extending across the northeastern third of the nation. An additional low would be set up off the Pacific Coast. In between, high pressure dominates the southern half of the nation, with a ridge extending into British Columbia. The steady 500 mb high over the southwestern states will push its ridge into the Northern and Central Plains Friday night into Sunday, before the entire ridge becomes supressed as the Pacific low moves across the Pacific Northwest. && .AVIATION...(For the 18Z TAFS through 18Z Tuesday Afternoon) Issued at 1243 PM CDT Mon Aug 6 2018 VFR conditions expected overnight with some mid and high clouds. Some scattered showers/storms expected to develop this afternoon bringing some low clouds and may affect KPIR/KATY. Possibility these storms could reach KABR however not enough confidence to include in TAF. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && SHORT TERM...TDK LONG TERM...KF AVIATION...ALD
Hazardous weather outlook, Aug 6, 9:34 AM CDT, 6 hours 2 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Aberdeen SD 934 AM CDT Mon Aug 6 2018 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-071445- Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts- Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant- Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 934 AM CDT Mon Aug 6 2018 /834 AM MDT Mon Aug 6 2018/ This Hazardous Weather Outlook is for west central Minnesota, central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. Scattered showers and thunderstorms are expected across the region this afternoon and tonight. The threat of severe weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. tdk
In the hours before
Special weather statement, Aug 6, 2:15 PM CDT, 1 hour 21 minutes before
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</html>Special weather statement, Aug 6, 3:15 PM CDT, 21 minutes before
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</html>Special weather statement, Aug 6, 3:36 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 2:15 PM CDT | Special Weather Statement | ABR | Roberts | 60 min |
| Aug 6, 5:11 PM CDT | Special Weather Statement | ABR | Jones | 34 min |
| Aug 6, 5:18 PM CDT | Special Weather Statement | ABR | Corson | 27 min |
| Aug 6, 5:24 PM CDT | Special Weather Statement | ABR | Jones | 36 min |
| Aug 6, 5:44 PM CDT | Special Weather Statement | ABR | Jones | 31 min |
| Aug 6, 5:59 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 31 min |
| Aug 6, 6:08 PM CDT | Special Weather Statement | ABR | Jones | 37 min |
| Aug 6, 6:21 PM CDT | Special Weather Statement | ABR | Lyman | 39 min |
| Aug 6, 6:35 PM CDT | Special Weather Statement | ABR | Lyman | 25 min |
| Aug 6, 6:38 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 37 min |
| Aug 6, 6:51 PM CDT | Special Weather Statement | ABR | Lyman | 24 min |
| Aug 6, 3:15 PM CDT | Special Weather Statement | ABR | Traverse | 45 min |
| Aug 6, 3:52 PM CDT | Special Weather Statement | ABR | Big Stone | 38 min |
Nearby
Special Weather Statements in Minnesota, 2018Every special weather statement in 2018
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.