Alert archive / Michigan / Tornado Warnings in 2016
Tornado Warning 7, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Aug 20, 2016, 2:36 PM EDT for Kent County, Michigan. It was in force for 24 min. 5 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
- Aug 20, 2016, 2:36 PM EDT (18:36 UTC)
- Expired
- Aug 20, 2016, 3:00 PM EDT
- In force
- 24 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
County Kent County, MI
The radar
The Grand Rapids radar (KGRR), 20 km from the middle of the area, began a volume at 18:37 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 |
|---|---|---|---|
| Aug 20, 2:38 PM EDT | TORNADO | 1 Se Grandville, MI | DEBRIS IN THE AIR NEAR 40TH AND IVANREST. |
| Aug 20, 2:42 PM EDT | TSTM WND DMG | 1 Ne Wyoming, MI | TREES DOWN ON HOUSES NEAR 32ND ST AND HIGHGATE AVE ALSO 2900 BLK LONGSTREET AVE. POSSIBLE TORNADO. |
| Aug 20, 2:50 PM EDT | TORNADO | Grand Rapids, MI | A BRIEF EF-O TORNADO TOUCHED DOWN IN KENT COUNTY NEAR PERKINS AVENUE NE BETWEEN LEONARD STREET NE AND KNAPP STREET NE. TREE DAMAGE AND SOME PROPERTY DAMAGE FROM FALLEN TREES OCCURRED AS THE RESULT OF THIS BRIEF TORNADO. |
| Aug 20, 2:51 PM EDT | TSTM WND DMG | 2 Sw East Grand Rapids, MI | RECEIVED A CALL FROM THE PUBLIC REPORTING SEVERAL DOWNED TREE LIMBS. LARGEST LIMB DOWNED IN HER YARD IS 6 INCHES IN DIAMETER. . |
| Aug 20, 2:52 PM EDT | TSTM WND GST 48 | 1 Ssw East Grand Rapids, MI | . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.6 hours before the alert went out and 179 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
- 75 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 1500 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
123
WFUS53 KGRR 201836
TORGRR
MIC081-201900-
/O.NEW.KGRR.TO.W.0007.160820T1836Z-160820T1900Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
236 PM EDT SAT AUG 20 2016
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL KENT COUNTY IN SOUTHWESTERN MICHIGAN...
* UNTIL 300 PM EDT
* AT 236 PM EDT...A TORNADO PRODUCING STORM WAS LOCATED OVER
WYOMING... MOVING NORTHEAST AT 40 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...RADAR CONFIRMED TORNADO.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE
DAMAGE IS LIKELY.
* THIS TORNADIC STORM WILL BE NEAR...
KENTWOOD AND EAST GRAND RAPIDS AROUND 245 PM EDT.
GRAND RAPIDS AND WALKER AROUND 250 PM EDT.
NORTHVIEW AND FOREST HILLS AROUND 255 PM EDT.
ROCKFORD AROUND 300 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE CEDAR
SPRINGS...COMSTOCK
PARK...CUTLERVILLE...BELMONT...CANNONSBURG...GRANDVILLE AND GRATTAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. 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 4328 8560 4315 8531 4311 8531 4283 8567
4289 8578 4295 8579
TIME...MOT...LOC 1836Z 213DEG 35KT 4289 8573
TORNADO...OBSERVED
HAIL...0.00IN
$$
WEBBThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 10:06 AM EDT | Special Marine Warning | GRR | 114 min | |
| Aug 20, 10:44 AM EDT | Special Weather Statement | GRR | Muskegon, Oceana, Ottawa | 61 min |
| Aug 20, 11:45 AM EDT | Special Weather Statement | GRR | Lake, Mason, Newaygo | 30 min |
| Aug 20, 12:40 PM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 65 min |
| Aug 20, 1:12 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Van Buren | 48 min |
| Aug 20, 1:21 PM EDT | Tornado Warning | GRR | Allegan, Van Buren | 24 min |
| Aug 20, 1:47 PM EDT | Tornado Warning | GRR | Allegan, Ottawa | 28 min |
| Aug 20, 2:05 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Kent, Ottawa | 55 min |
| Aug 20, 2:12 PM EDT | Tornado Warning | GRR | Allegan, Kent, Ottawa | 33 min |
| Aug 20, 2:16 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Calhoun, Eaton, Kalamazoo | 59 min |
| Aug 20, 2:35 PM EDT | Tornado Warning | GRR | Barry, Eaton | 25 min |
| Aug 20, 2:42 PM EDT | Severe Thunderstorm Warning | GRR | Newaygo | 24 min |
| Aug 20, 2:59 PM EDT | Areal Flood Advisory | GRR | Allegan, Barry, Ionia, Kent, Montcalm | 12 hr |
| Aug 20, 2:59 PM EDT | Tornado Warning | GRR | Kent, Montcalm | 31 min |
| Aug 20, 3:04 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Clinton, Eaton, Ionia | 41 min |
| Aug 20, 3:17 PM EDT | Tornado Warning | GRR | Ionia, Montcalm | 28 min |
| Aug 20, 3:33 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Ionia, Isabella, Montcalm | 42 min |
| Aug 20, 3:44 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 46 min |
| Aug 20, 4:14 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Isabella | 31 min |
Nearby
Tornado Warnings in Michigan, 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.