Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 151, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 23, 1999, 2:58 AM CDT for Barron County, Wisconsin. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 23, 1999, 2:58 AM CDT (07:58 UTC)
- Expired
- Jul 23, 1999, 3:30 AM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Barron County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 3:06 AM CDT | Thunderstorm Wind 55 | Cameron, WI | Estimated winds. Trees down. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 23, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.0 hours before the alert went out and 152 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
- 3351 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1302 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 11.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMPX 230800 RRA SVRMSP WIC005-230830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 258 AM CDT FRI JUL 23 1999 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BARRON COUNTY IN WEST CENTRAL WISCONSIN * UNTIL 330 AM CDT * AT 258 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS OVER CHETEK...OR ABOUT 11 MILES SOUTH OF RICE LAKE...MOVING EAST NORTHEAST AT 45 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... RICE LAKE DALLAS CHETEK CAMERON BARRON LARGE HAIL AND DAMAGING WINDjS ARE LIKELY WITH THIS STORM. TAKE COVER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 1:47 AM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 43 min |
| Jul 23, 2:13 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Dunn | 47 min |
| Jul 23, 2:30 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 30 min |
| Jul 23, 2:47 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 43 min |
| Jul 23, 3:28 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 47 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.