Alert archive / Iowa / Special Weather Statements in 2016
Special Weather Statement, NWS La Crosse, WI
NWS La Crosse, WI issued this special weather statement at Jun 21, 2016, 11:01 PM CDT for Floyd County, Iowa. It was in force for 59 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
- Jun 21, 2016, 11:01 PM CDT (04:01 UTC)
- Expired
- Jun 22, 2016, 12:00 AM CDT
- In force
- 59 min
- Issued by
- NWS La Crosse, WI
County Floyd County, IA
The radar
The La Crosse radar (KARX), 148 km from the middle of the area, began a volume at 04:03 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
Minneapolis, MN (KMPX), launched 00:00Z, 4.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2403 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
314
WWUS83 KARX 220401
SPSARX
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1101 PM CDT TUE JUN 21 2016
IAZ018-019-220500-
CHICKASAW-FLOYD-
1101 PM CDT TUE JUN 21 2016
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN CHICKASAW AND FLOYD
COUNTIES...
AT 1059 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED NEAR
ROCKFORD...OR 14 MILES SOUTHEAST OF MASON CITY...MOVING SOUTHEAST AT
50 MPH.
WINDS IN EXCESS OF 30 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH
THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
CHARLES CITY...NASHUA...NORA SPRINGS...FREDERICKSBURG...ROCKFORD...
RUDD...FLOYD...MARBLE ROCK...IONIA...CHICKASAW...AND BASSETT.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 4321 9302 4321 9296 4297 9208 4291 9209
4291 9302
TIME...MOT...LOC 0359Z 298DEG 53KT 4302 9297
$$
ROGERSThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 11:07 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 38 min |
| Jun 22, 12:17 AM CDT | Flash Flood Warning | ARX | Floyd | 4 hr |
Nearby
Special Weather Statements in Iowa, 2016Every special weather statement in 2016
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.