Alert archive / Michigan / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 13, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 1, 2018, 7:51 PM EDT for 4 counties in Michigan. It was in force for 39 min. 9 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
- Jul 1, 2018, 7:51 PM EDT (23:51 UTC)
- Expired
- Jul 1, 2018, 8:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Allegan County, MI, Barry County, MI, Kent County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 12 km from the middle of the area, began a volume at 23:51 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 |
|---|---|---|---|
| Jul 1, 7:55 PM EDT | TSTM WND DMG | 3 Ne Drenthe, MI | POWER LINES DOWN NEAR INTERSECTION OF 48TH AVE AND BYRON RD. TIME ESTIMATED FROM RADAR. |
| Jul 1, 8:00 PM EDT | TSTM WND DMG | Jamestown, MI | TELEPHONE POLE DOWN NEAR 2700 BLOCK OF RILEY. TIME ESTIMATED FROM RADAR. |
| Jul 1, 8:04 PM EDT | TSTM WND GST 44 | 1 Ese North Dorr, MI | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 1 ESE NORTH DORR. MESONET STATION AV010, 1 ESE NORTH DORR. |
| Jul 1, 8:04 PM EDT | NON-TSTM WND GST 44 | 1 Ese North Dorr, MI | MESONET STATION AV010, 1 ESE NORTH DORR. |
| Jul 1, 8:08 PM EDT | TSTM WND DMG | Grandville, MI | A FEW TREES AND POWER LINES DOWN. TIME ESTIMATED FROM RADAR. |
| Jul 1, 8:10 PM EDT | TSTM WND DMG | 2 N Grandville, MI | DELAYED REPORT. ABOUT A DOZEN TREES WITH LIMBS SNAPPED AND SEVERAL UPROOTED ALONG A 3 MILE STRETCH OF INDIAN MOUNDS DRIVE. |
| Jul 1, 8:15 PM EDT | TSTM WND DMG | 3 Ne Wyoming, MI | LARGE TREE DOWN ON SUV NEAR 1100 BLOCK OF BANNER SW. REPORT COURTESY OF WOOD TV. TIME ESTIMATED FROM RADAR. |
| Jul 1, 8:23 PM EDT | TSTM WND GST 48 | Gerald R Ford Intl, MI | CORRECTION OF PREVIOUS NON-TSTM WIND REPORT. ASOS STATION GRR, GERALD R FORD INTL. |
| Jul 1, 8:23 PM EDT | NON-TSTM WND GST 48 | Gerald R Ford Intl, MI | ASOS STATION GRR, GERALD R FORD INTL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 1, 6:35 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 11.9 hours before the alert went out and 182 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
- 855 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 992 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
905
WUUS53 KGRR 012351
SVRGRR
MIC005-015-081-139-020030-
/O.NEW.KGRR.SV.W.0013.180701T2351Z-180702T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
751 PM EDT SUN JUL 1 2018
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Eastern Allegan County in southwestern Michigan...
Southern Kent County in southwestern Michigan...
Southeastern Ottawa County in southwestern Michigan...
Northwestern Barry County in southwestern Michigan...
* Until 830 PM EDT.
* At 751 PM EDT, severe thunderstorms were located along a line
extending from near Zeeland to 11 miles west of Wayland to near
Allegan, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Grand Rapids... Allegan... Lowell...
Wyoming... Kentwood... Walker...
East Grand Rapids... Hudsonville... Zeeland...
Wayland... Middleville... Caledonia...
Freeport... Jenison... Forest Hills...
Northview... Grandville... Ada...
Dorr... Grattan...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4312 8531 4269 8531 4248 8600 4267 8592
4285 8605
TIME...MOT...LOC 2351Z 239DEG 35KT 4281 8594 4269 8586 4256 8591
HAIL...0.75IN
WIND...60MPH
$$
NJJ1 follow-up statement
612
WWUS53 KGRR 020016
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
816 PM EDT SUN JUL 1 2018
MIC139-020025-
/O.CAN.KGRR.SV.W.0013.000000T0000Z-180702T0030Z/
Ottawa MI-
816 PM EDT SUN JUL 1 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OTTAWA COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
south central, central and southwestern Michigan.
LAT...LON 4269 8577 4295 8578 4312 8531 4269 8531
4255 8579
TIME...MOT...LOC 0015Z 245DEG 42KT 4294 8566 4282 8559 4269 8564
$$
MIC005-015-081-020030-
/O.CON.KGRR.SV.W.0013.000000T0000Z-180702T0030Z/
Allegan MI-Kent MI-Barry MI-
816 PM EDT SUN JUL 1 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR NORTHEASTERN ALLEGAN...SOUTHERN KENT AND NORTHWESTERN BARRY
COUNTIES...
At 815 PM EDT, severe thunderstorms were located along a line
extending from near Grand Rapids to near Kentwood to near Wayland,
moving northeast at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Power outages have been reported in Jamestown Township with
this line of storms.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Grand Rapids... Lowell... Wyoming...
Kentwood... Walker... East Grand Rapids...
Wayland... Middleville... Caledonia...
Freeport... Forest Hills... Northview...
Grandville... Ada... Dorr...
Grattan... Irving... Hopkins...
Cutlerville... Bradley...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4269 8577 4295 8578 4312 8531 4269 8531
4255 8579
TIME...MOT...LOC 0015Z 245DEG 42KT 4294 8566 4282 8559 4269 8564
HAIL...0.75IN
WIND...60MPH
$$
NJJThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 9:51 PM EDT | Beach Hazards Statement | GRR | Mason, Muskegon, Oceana | 29 hr |
| Jun 30, 9:51 PM EDT | Small Craft Advisory | GRR | 29 hr | |
| Jul 1, 5:39 PM EDT | Special Marine Warning | GRR | 81 min | |
| Jul 1, 6:10 PM EDT | Special Marine Warning | GRR | 80 min | |
| Jul 1, 6:49 PM EDT | Severe Thunderstorm Warning | GRR | Mason, Oceana | 56 min |
| Jul 1, 7:07 PM EDT | Special Weather Statement | GRR | Muskegon | 38 min |
| Jul 1, 7:13 PM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 47 min |
| Jul 1, 7:29 PM EDT | Special Marine Warning | GRR | 61 min | |
| Jul 1, 7:33 PM EDT | Special Weather Statement | GRR | Lake, Newaygo | 57 min |
| Jul 1, 7:46 PM EDT | Special Weather Statement | GRR | Kent | 59 min |
| Jul 1, 7:47 PM EDT | Severe Thunderstorm Warning | GRR | Lake, Newaygo | 43 min |
| Jul 1, 7:53 PM EDT | Special Weather Statement | GRR | Newaygo | 52 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2018Every severe thunderstorm warning in 2018
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.