Alert archive / Iowa / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 39, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Mar 23, 2017, 4:15 PM CDT for Cerro Gordo County, Worth County, Iowa. It was in force for 30 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
- Mar 23, 2017, 4:15 PM CDT (21:15 UTC)
- Expired
- Mar 23, 2017, 4:45 PM CDT
- In force
- 30 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Cerro Gordo County, IA, Worth County, IA
The radar
The La Crosse radar (KARX), 172 km from the middle of the area, began a volume at 21:19 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 12:00Z, 9.3 hours before the alert went out and 181 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
- 1500 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 392 m²/s²
- 0-3 km storm-relative helicity
- 500 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
197 WUUS53 KDMX 232115 SVRDMX IAC033-195-232145- /O.NEW.KDMX.SV.W.0039.170323T2115Z-170323T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Des Moines IA 415 PM CDT THU MAR 23 2017 The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Southeastern Worth County in north central Iowa... Northern Cerro Gordo County in north central Iowa... * Until 445 PM CDT. * At 414 PM CDT, a severe thunderstorm was located near Mason City Municipal Airport, or 8 miles northwest of Mason City, moving northeast at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Mason City, Manly, Mason City Municipal Airport, Plymouth, Fertile, Kensett, Grafton, Hanlontown, Rock Falls and Bolan. This includes Interstate 35 between mile markers 194 and 205. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4322 9302 4313 9337 4325 9346 4344 9303 TIME...MOT...LOC 2114Z 244DEG 47KT 4323 9332 HAIL...1.00IN WIND...<50MPH $$ Martin
2 follow-up statements
351 WWUS53 KDMX 232128 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 428 PM CDT THU MAR 23 2017 IAC033-195-232145- /O.CON.KDMX.SV.W.0039.000000T0000Z-170323T2145Z/ Worth IA-Cerro Gordo IA- 428 PM CDT THU MAR 23 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR SOUTHEASTERN WORTH AND NORTHEASTERN CERRO GORDO COUNTIES... At 428 PM CDT, a severe thunderstorm was located near Manly, or 11 miles southeast of Northwood, moving northeast at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Manly, Plymouth, Kensett, Grafton, Rock Falls and Bolan. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4322 9302 4319 9314 4333 9328 4344 9303 TIME...MOT...LOC 2128Z 244DEG 47KT 4331 9309 HAIL...1.00IN WIND...<50MPH $$ Martin
127
WWUS53 KDMX 232137
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
437 PM CDT THU MAR 23 2017
IAC033-195-232147-
/O.EXP.KDMX.SV.W.0039.000000T0000Z-170323T2145Z/
Worth IA-Cerro Gordo IA-
437 PM CDT THU MAR 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WORTH AND
NORTHEASTERN CERRO GORDO COUNTIES WILL EXPIRE AT 445 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4322 9302 4319 9314 4333 9328 4344 9303
TIME...MOT...LOC 2137Z 244DEG 47KT 4334 9300
$$
MartinThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 12:12 PM CDT | Special Weather Statement | DMX | Emmet | 48 min |
| Mar 23, 12:23 PM CDT | Special Weather Statement | DMX | Pocahontas | 37 min |
| Mar 23, 12:57 PM CDT | Special Weather Statement | DMX | Humboldt | 33 min |
| Mar 23, 1:23 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 25 min |
| Mar 23, 2:05 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 25 min |
| Mar 23, 2:47 PM CDT | Special Weather Statement | DMX | Butler | 28 min |
| Mar 23, 2:51 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 39 min |
| Mar 23, 3:18 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 25 min |
| Mar 23, 4:19 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.