Alert archive / Michigan / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 21, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 13, 2017, 2:18 AM EDT for Osceola County, Michigan. It was in force for 42 min. 4 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 13, 2017, 2:18 AM EDT (06:18 UTC)
- Expired
- Jul 13, 2017, 3:00 AM EDT
- In force
- 42 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Osceola County, MI
The radar
The NCL Michigan radar (KAPX), 107 km from the middle of the area, began a volume at 06:22 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 13, 2:30 AM EDT | TSTM WND DMG | 2 Ese Le Roy, MI | COUNTY ROAD COMMISSION INDICATED NUMEROUS TREES DOWN IN THE VICINITY OF 160TH AND 15 MILE ROADS AND ALSO 230TH AND 16 MILE. ALSO SOME ROAD WASHOUTS. TIME ESTIMATED BY RADAR. |
| Jul 13, 2:30 AM EDT | TSTM WND DMG | 2 Ese Le Roy, MI | SOCIAL MEDIA REPORT OF A BARN COLLAPSE AND LARGE TREES DOWN AT 160TH AND 15 MILE. TIME ESTIMATED BY RADAR. |
| Jul 13, 2:34 AM EDT | TSTM WND DMG | 1 N Ina, MI | TREE DOWN AT M115 AND 100TH AVE. |
| Jul 13, 2:40 AM EDT | TSTM WND DMG | 2 Ene Pisgah Heights, MI | POWER LINES DOWN AT 20 MILE RD AND 50TH AVE. |
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 00:00Z, 6.3 hours before the alert went out and 209 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
- 885 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 822 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
695 WUUS53 KGRR 130618 SVRGRR MIC133-130700- /O.NEW.KGRR.SV.W.0021.170713T0618Z-170713T0700Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Grand Rapids MI 218 AM EDT THU JUL 13 2017 The National Weather Service in Grand Rapids has issued a * Severe Thunderstorm Warning for... Osceola County in central Michigan... * Until 300 AM EDT. * At 217 AM EDT, severe thunderstorms were located along a line extending from 6 miles south of Mitchell State Park to near Luther, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Evart... Reed City... Marion... Highland... Hersey... Le Roy... Tustin... Gibos Corners... Ashton... Sears... Pisgah Heights... Avondale... Dighton... Ina... Park Lake... Stambaugh Corner... PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Frequent cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4416 8509 4383 8509 4386 8556 4416 8556 TIME...MOT...LOC 0617Z 280DEG 44KT 4415 8550 4404 8563 HAIL...<.75IN WIND...60MPH $$ DUKE
2 follow-up statements
963 WWUS53 KGRR 130636 SVSGRR Severe Weather Statement National Weather Service Grand Rapids MI 236 AM EDT THU JUL 13 2017 MIC133-130700- /O.CON.KGRR.SV.W.0021.000000T0000Z-170713T0700Z/ Osceola MI- 236 AM EDT THU JUL 13 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM EDT FOR OSCEOLA COUNTY... At 236 AM EDT, severe thunderstorms were located along a line extending from near Mcbain to 7 miles north of Evart, moving east at 50 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Evart... Marion... Highland... Le Roy... Tustin... Ashton... Sears... Pisgah Heights... Avondale... Dighton... Ina... Park Lake... Stambaugh Corner... PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4416 8509 4388 8509 4391 8556 4416 8556 TIME...MOT...LOC 0636Z 277DEG 45KT 4415 8520 4400 8529 HAIL...0.75IN WIND...60MPH $$ DUKE
214
WWUS53 KGRR 130656
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
256 AM EDT THU JUL 13 2017
MIC133-130706-
/O.EXP.KGRR.SV.W.0021.000000T0000Z-170713T0700Z/
Osceola MI-
256 AM EDT THU JUL 13 2017
...THE SEVERE THUNDERSTORM WARNING FOR OSCEOLA COUNTY WILL EXPIRE AT
300 AM EDT...
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire. However heavy rain
is still possible with these thunderstorms.
LAT...LON 4416 8509 4388 8509 4391 8556 4416 8556
TIME...MOT...LOC 0656Z 280DEG 44KT 4411 8491 4396 8500
$$
DUKEThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 12:40 AM EDT | Special Weather Statement | GRR | Lake, Osceola | 65 min |
| Jul 13, 1:00 AM EDT | Special Marine Warning | GRR | 45 min | |
| Jul 13, 1:28 AM EDT | Special Weather Statement | GRR | Lake | 62 min |
| Jul 13, 1:50 AM EDT | Severe Thunderstorm Warning | GRR | Lake, Mason | 40 min |
| Jul 13, 2:46 AM EDT | Severe Thunderstorm Warning | GRR | Clare | 59 min |
| Jul 13, 4:09 AM EDT | Special Weather Statement | GRR | Clinton | 66 min |
| Jul 13, 4:22 AM EDT | Severe Thunderstorm Warning | GRR | Clinton, Eaton, Ingham | 53 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.