Alert archive / Iowa / Tornado Warnings in 2016
Tornado Warning 14, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Nov 28, 2016, 3:33 PM CST for Butler County, Grundy County, Iowa. It was in force for 27 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Nov 28, 2016, 3:33 PM CST (21:33 UTC)
- Expired
- Nov 28, 2016, 4:00 PM CST
- In force
- 27 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Butler County, IA, Grundy County, IA
The radar
The Des Moines radar (KDMX), 123 km from the middle of the area, began a volume at 21:35 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 28, 3:45 PM CST | TORNADO | Parkersburg, IA | REPORT OF SOME BUILDING DAMAGE IN NW PART OF PARKERSBURG. |
| Nov 28, 4:01 PM CST | TORNADO | 3 Ene Parkersburg, IA | TRAINED SPOTTER REPORTED A TORNADO ON THE GROUND AT THE TIME OF THE REPORT. REPORT RELAYED BY CEDAR FALLS DISPATCH. . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.6 hours before the alert went out and 212 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
- 666 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 333 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
541 WFUS53 KDMX 282133 TORDMX IAC023-075-282200- /O.NEW.KDMX.TO.W.0014.161128T2133Z-161128T2200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 333 PM CST MON NOV 28 2016 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL GRUNDY COUNTY IN CENTRAL IOWA... SOUTHEASTERN BUTLER COUNTY IN NORTH CENTRAL IOWA... * UNTIL 400 PM CST. * AT 332 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED OVER PARKERSBURG...OR 11 MILES NORTH OF GRUNDY CENTER...MOVING NORTHEAST AT 25 MPH. HAZARD...TORNADO. SOURCE...LAW ENFORCEMENT REPORTED FUNNEL CLOUD. IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. * THIS DANGEROUS STORM WILL BE NEAR... PARKERSBURG AROUND 340 PM CST. OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE STOUT AND NEW HARTFORD. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4249 9278 4254 9287 4270 9271 4257 9256 TIME...MOT...LOC 2132Z 215DEG 21KT 4253 9279 TORNADO...RADAR INDICATED HAIL...<.75IN $$ MF
1 follow-up statement
834
WWUS53 KDMX 282150
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
350 PM CST MON NOV 28 2016
IAC023-075-282200-
/O.CON.KDMX.TO.W.0014.000000T0000Z-161128T2200Z/
GRUNDY IA-BUTLER IA-
350 PM CST MON NOV 28 2016
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CST FOR NORTH
CENTRAL GRUNDY AND SOUTHEASTERN BUTLER COUNTIES...
AT 350 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER PARKERSBURG...OR 11 MILES SOUTH OF ALLISON...MOVING
NORTHEAST AT 20 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES.
THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTH CENTRAL GRUNDY AND SOUTHEASTERN BUTLER COUNTIES...INCLUDING THE
FOLLOWING LOCATIONS: STOUT AND NEW HARTFORD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4249 9278 4254 9287 4270 9271 4257 9256
TIME...MOT...LOC 2150Z 211DEG 19KT 4259 9274
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MFThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 28, 3:13 PM CST | Special Weather Statement | DMX | Grundy | 62 min |
| Nov 28, 3:16 PM CST | Special Weather Statement | DMX | Mahaska | 59 min |
| Nov 28, 3:43 PM CST | Tornado Warning | DMX | Grundy | 32 min |
| Nov 28, 3:53 PM CST | Tornado Warning | DMX | Mahaska, Poweshiek | 37 min |
| Nov 28, 3:54 PM CST | Tornado Warning | DMX | Marshall, Tama | 18 min |
| Nov 28, 3:59 PM CST | Tornado Warning | DMX | Bremer, Butler | 46 min |
| Nov 28, 4:19 PM CST | Tornado Warning | DMX | Poweshiek | 41 min |
| Nov 28, 4:41 PM CST | Tornado Warning | DMX | Davis | 13 min |
| Nov 28, 5:11 PM CST | Special Weather Statement | DMX | Wapello | 34 min |
Nearby
Tornado Warnings in Iowa, 2016Every tornado warning in 2016Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.