Alert archive / Iowa / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 246, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 29, 1998, 5:44 PM CDT for Taylor County, Iowa. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1998, 5:44 PM CDT (22:44 UTC)
- Expired
- Jun 29, 1998, 6:35 PM CDT
- In force
- 51 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Taylor County, IA
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 4:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.7 hours before the alert went out and 155 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
- 2006 J/kg
- Mixed-layer CIN
- -188 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
706 WUUS1 KDSM 292245 RRA SVRDSM IAC173-292335- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA ISSUED BY NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 544 PM CDT MON JUN 29 1998 THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TAYLOR COUNTY IN SOUTHWESTERN IOWA * UNTIL 635 PM CDT * AT 543 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 63 MILES NORTHEAST OF FALLS CITY OR 5 MILES WEST NORTHWEST OF GRAVITY MOVING EAST SOUTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... GRAVITY NOW BEDFORD AT 550 PM CDT SHARPSBURG AT 550 PM CDT CLEARFIELD AT 605 PM CDT BLOCKTON AT 615 PM CDT GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. CHERMOK
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 29, 1:25 PM CDT, 4 hours 19 minutes before
IAZ004>007-015>017-023>026-033>034-291930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 125 PM CDT MON JUN 29 1998 THE FOLLOWING COUNTIES OF TORNADO WATCH NUMBER 699 HAVE BEEN CLEARED FROM THE WATCH... EMMET - KOSSUTH - WINNEBAGO - WORTH - PALO ALTO - HANCOCK - CERRO GORDO - POCAHONTAS - HUMBOLDT - WRIGHT - FRANKLIN - SAC - AND CALHOUN. THE REMAINDER OF THE WATCH REMAINS IN EFFECT UNTIL 500 PM. IN ADDITION TORNADO WATCH NUMBER 700 REMAINS IN EFFECT UNTIL 500 PM FOR THE REST OF SOUTHERN AND EASTERN IOWA. THUNDERSTORMS WILL CONTINUE OVER THE CLEARED COUNTIES...HOWEVER THE THREAT OF SEVERE WEATHER HAS PASSED TO THE SOUTH.
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 12:18 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 47 min |
| Jun 29, 12:24 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 36 min |
| Jun 29, 12:32 PM CDT | Tornado Warning | DMX | Hamilton | 33 min |
| Jun 29, 12:37 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 48 min |
| Jun 29, 12:41 PM CDT | Tornado Warning | DMX | Crawford | 49 min |
| Jun 29, 12:59 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 51 min |
| Jun 29, 1:09 PM CDT | Severe Thunderstorm Warning | DMX | Story | 36 min |
| Jun 29, 1:17 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 33 min |
| Jun 29, 1:20 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 50 min |
| Jun 29, 1:23 PM CDT | Tornado Warning | DMX | Boone, Dallas | 32 min |
| Jun 29, 1:32 PM CDT | Tornado Warning | DMX | Polk | 33 min |
| Jun 29, 1:39 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 31 min |
| Jun 29, 1:44 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Tama | 46 min |
| Jun 29, 1:48 PM CDT | Tornado Warning | DMX | Dallas, Madison | 47 min |
| Jun 29, 1:53 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 32 min |
| Jun 29, 2:04 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 21 min |
| Jun 29, 2:08 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 47 min |
| Jun 29, 2:08 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 47 min |
| Jun 29, 2:11 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 34 min |
| Jun 29, 2:18 PM CDT | Tornado Warning | DMX | Tama | 32 min |
| Jun 29, 2:23 PM CDT | Tornado Warning | DMX | Marion | 32 min |
| Jun 29, 2:28 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Monroe | 62 min |
| Jun 29, 2:28 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Warren | 62 min |
| Jun 29, 2:44 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 66 min |
| Jun 29, 2:55 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 65 min |
| Jun 29, 3:10 PM CDT | Tornado Warning | DMX | Davis | 35 min |
| Jun 29, 3:25 PM CDT | Tornado Warning | DMX | Dallas | 50 min |
| Jun 29, 3:27 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 48 min |
| Jun 29, 3:40 PM CDT | Tornado Warning | DMX | Polk | 35 min |
| Jun 29, 3:47 PM CDT | Tornado Warning | DMX | Warren | 33 min |
| Jun 29, 4:05 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 50 min |
| Jun 29, 5:41 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 49 min |
| Jun 29, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 35 min |
| Jun 29, 6:19 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 66 min |
| Jun 29, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 65 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1998Every severe thunderstorm warning in 1998
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.