Alert archive / Michigan / Special Weather Statements in 2018
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Aug 2, 2018, 10:00 AM EDT for Clare County, Michigan. 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
- Aug 2, 2018, 10:00 AM EDT (14:00 UTC)
- Expired
- Aug 2, 2018, 10:30 AM EDT
- In force
- 30 min
- Issued by
- NWS Grand Rapids, MI
County Clare County, MI
The radar
The NCL Michigan radar (KAPX), 113 km from the middle of the area, began a volume at 14:00 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
Detroit, MI (KDTX), launched 12:00Z, 2.0 hours before the alert went out and 164 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
- 123 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1153 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Rapids, MI wrote its last area forecast discussion before this special weather statement went out at Aug 2, 7:50 AM EDT, 2 hours 10 minutes earlier.
Area forecast discussion, Aug 2, 7:50 AM EDT, 2 hours 10 minutes before
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</html>Hazardous weather outlook, Aug 2, 4:40 AM EDT, 5 hours 20 minutes before
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</html>In the hours before
Special weather statement, Aug 2, 9:21 AM EDT, 39 minutes before
Special Weather Statement
National Weather Service Grand Rapids MI
921 AM EDT THU AUG 2 2018
MIZ039-040-046-021400-
Isabella MI-Osceola MI-Clare MI-
921 AM EDT THU AUG 2 2018
...SIGNIFICANT WEATHER ADVISORY...
At 921 AM EDT, Doppler radar was tracking a strong thunderstorm near
Lake, or 12 miles northwest of Clare, moving northeast at 45 mph.
Winds in excess of 40 mph with downed tree limbs will be possible
with this storm.
Locations impacted include...
Clare... Marion... Farwell...
Lake... Brinton... Temple...
Lake George... Leota...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall and frequent cloud to ground lightning are also
occurring with this storm. Localized flooding is possible. Lightning
can strike 10 miles away from a thunderstorm.
Seek a safe shelter inside a building or vehicle. Do not drive your
vehicle through flooded roadways.
&&
LAT...LON 4416 8461 4381 8461 4376 8503 4408 8524
4417 8505
TIME...MOT...LOC 1321Z 246DEG 41KT 4391 8499
MJSSpecial weather statement, Aug 2, 10:00 AM EDT, 0 minutes before
Special Weather Statement National Weather Service Grand Rapids MI 1000 AM EDT THU AUG 2 2018 MIZ040-046-021430- Isabella MI-Clare MI- 1000 AM EDT THU AUG 2 2018 ...SIGNIFICANT WEATHER ADVISORY... At 959 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 5 miles southwest of Roscommon Township to near Loomis. Movement was northeast at 45 mph. Winds in excess of 40 mph with downed tree limbs will be possible with these storms. Locations impacted include... Loomis... PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall and frequent cloud to ground lightning are also occurring with these storms. Localized flooding is possible. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. Do not drive your vehicle through flooded roadways. && LAT...LON 4371 8461 4370 8465 4416 8488 4416 8461 TIME...MOT...LOC 1359Z 241DEG 39KT 4416 8477 4382 8460 MJS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 8:36 PM EDT | Special Marine Warning | GRR | 40 min | |
| Aug 1, 8:38 PM EDT | Special Weather Statement | GRR | Mason | 67 min |
| Aug 2, 9:21 AM EDT | Special Weather Statement | GRR | Clare | 39 min |
| Aug 2, 1:42 PM EDT | Special Weather Statement | GRR | Clare, Isabella, Mecosta | 63 min |
| Aug 2, 1:51 PM EDT | Severe Thunderstorm Warning | GRR | Clare, Isabella | 36 min |
| Aug 2, 4:39 PM EDT | Special Weather Statement | GRR | Barry, Clinton, Eaton, Gratiot, Ionia, Kalamazoo and 2 more | 3 hr |
| Aug 2, 5:26 PM EDT | Severe Thunderstorm Warning | GRR | Van Buren | 31 min |
| Aug 2, 5:39 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Ionia | 37 min |
| Aug 2, 6:02 PM EDT | Severe Thunderstorm Warning | GRR | Allegan | 20 min |
| Aug 2, 7:30 PM EDT | Special Weather Statement | GRR | Barry, Ionia | 60 min |
| Aug 2, 7:59 PM EDT | Special Weather Statement | GRR | Clinton, Gratiot, Ionia | 61 min |
Nearby
Special Weather Statements in Michigan, 2018Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.