Alert archive / Iowa / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 94, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jul 2, 2000, 4:45 PM CDT for Chickasaw County, Iowa. It was in force for 60 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jul 2, 2000, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 2, 2000, 5:45 PM CDT
- In force
- 60 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Chickasaw County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 2, 4:49 PM CDT | Hail 0.88 | Ionia, IA | |
| Jul 2, 5:00 PM CDT | Thunderstorm Wind 55 E | Nashua, IA |
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 2, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.8 hours before the alert went out and 216 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
- 1145 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
929 WUUS53 KARX 022147 SVRLSE IAC037-022245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 445 PM CDT SUN JUL 2 2000 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CHICKASAW COUNTY IN NORTHEAST IOWA * UNTIL 545 PM CDT * AT 445 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER IONIA...OR ABOUT 9 MILES WEST OF NEW HAMPTON...MOVING SOUTH AT 15 MPH. * THE SEVERE THUNDERSTORM IS EXPECTED TO BE... NEAR NASHUA AT 455 PM CDT THIS IS A CONTINUATION OF THE PREVIOUS WARNING THAT WAS IN EFFECT UNTIL 445 PM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. RIECK LAT...LON 4313 9240 4307 9263 4267 9247 4276 9216
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 3:18 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 57 min |
| Jul 2, 3:51 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 54 min |
| Jul 2, 4:05 PM CDT | Tornado Warning | ARX | Allamakee, Winneshiek | 55 min |
| Jul 2, 4:11 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 64 min |
| Jul 2, 5:00 PM CDT | Flash Flood Warning | ARX | Chickasaw | 3 hr |
| Jul 2, 5:08 PM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Jul 2, 5:20 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 55 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2000Every severe thunderstorm warning in 2000
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.