Alert archive / Iowa / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Mar 23, 2017, 10:44 AM CDT for Plymouth County, Sioux County, Iowa. It was in force for 16 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 23, 2017, 10:44 AM CDT (15:44 UTC)
- Expired
- Mar 23, 2017, 11:00 AM CDT
- In force
- 16 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Plymouth County, IA, Sioux County, IA
The radar
The Sioux Falls radar (KFSD), 95 km from the middle of the area, began a volume at 15:45 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 23, 10:50 AM CDT | HAIL 1.25 | 4 Nw Oyens, IA | . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 3.7 hours before the alert went out and 172 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 338 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
045 WUUS53 KFSD 231544 SVRFSD IAC149-167-231600- /O.NEW.KFSD.SV.W.0002.170323T1544Z-170323T1600Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Sioux Falls SD 1044 AM CDT THU MAR 23 2017 The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Southeastern Sioux County in northwestern Iowa... Northeastern Plymouth County in northwestern Iowa... * Until 1100 AM CDT * At 1044 AM CDT, a severe thunderstorm was located near Le Mars, moving northeast at 60 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near, Orange City and Alton around 1100 AM CDT. Other locations impacted by this severe thunderstorm include Brunsville and Oyens. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4275 9624 4286 9632 4304 9593 4289 9587 TIME...MOT...LOC 1544Z 238DEG 51KT 4283 9622 HAIL...1.00IN WIND...<50MPH $$ MJF
1 follow-up statement
566
WWUS53 KFSD 231601
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
1101 AM CDT THU MAR 23 2017
IAC149-167-231610-
/O.EXP.KFSD.SV.W.0002.000000T0000Z-170323T1600Z/
Sioux IA-Plymouth IA-
1101 AM CDT THU MAR 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SIOUX AND
NORTHEASTERN PLYMOUTH COUNTIES HAS EXPIRED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been allowed to expire.
LAT...LON 4275 9624 4286 9632 4304 9593 4289 9587
TIME...MOT...LOC 1600Z 238DEG 51KT 4295 9596
$$
MJFThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 11:19 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Clay, O'Brien, Plymouth, Sioux | 26 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2017Every severe thunderstorm warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.