Alert archive / Michigan / Special Weather Statements in 2021
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Apr 10, 2021, 3:25 PM EDT for 4 counties in Michigan. It was in force for 65 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
- Apr 10, 2021, 3:25 PM EDT (19:25 UTC)
- Expired
- Apr 10, 2021, 4:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Eaton County, MI, Ingham County, MI
The radar
The Grand Rapids radar (KGRR), 39 km from the middle of the area, began a volume at 19:29 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, 7.4 hours before the alert went out and 163 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
- 1320 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 225 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 Apr 10, 1:53 PM EDT, 1 hour 32 minutes earlier.
Area forecast discussion, Apr 10, 1:53 PM EDT, 1 hour 32 minutes before
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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Apr 10, 12:52 PM EDT, 2 hours 33 minutes before
Hazardous Weather Outlook National Weather Service Grand Rapids MI 1252 PM EDT Sat Apr 10 2021 MIZ037>040-043>046-050>052-056>059-064>067-071>074-111700- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 1252 PM EDT Sat Apr 10 2021 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...This Afternoon and Tonight Scattered thunderstorms are expected this afternoon and evening, especially between 200pm and 800pm. Best chances for storms will be south of a line from Muskegon to Mt. Pleasant including much of Southern Lower Michigan. Severe weather is not anticipated at this time. Storms will be capable of locally heavy rain, cloud to ground lightning strikes and wind gusts to 35 mph. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. LMZ844>849-111700- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 1252 PM EDT Sat Apr 10 2021 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. DUKE
In the hours before
Special weather statement, Apr 10, 2:38 PM EDT, 47 minutes before
Special Weather Statement
National Weather Service Grand Rapids MI
238 PM EDT Sat Apr 10 2021
MIZ071-072-101930-
Kalamazoo-Van Buren-
238 PM EDT Sat Apr 10 2021
...A LINE OF THUNDERSTORMS WILL AFFECT VAN BUREN AND KALAMAZOO
COUNTIES...
At 235 PM EDT, radar indicated a line of thunderstorms located along
the Indiana state line, near Elkhart Indiana and Sturgis Michigan,
moving north at 40 mph.
Winds in excess of 40 mph are possible with these storms. Some
downed tree limbs and power outages may occur.
These storms will be near...
Decatur around 305 PM EDT.
Lawton around 310 PM EDT.
Paw Paw around 315 PM EDT.
Kalamazoo around 320 PM EDT.
Galesburg around 325 PM EDT.
Bangor, Richland and Gull Lake around 330 PM EDT.
Other locations impacted by these storms include Augusta, Fulton,
Lawrence, Breedsville, Oshtemo, Glendale, Gobles, Grand Junction,
Keeler and Covert.
If outdoors, consider seeking shelter inside a building.
LAT...LON 4207 8622 4224 8622 4224 8637 4242 8627
4242 8530 4207 8529
TIME...MOT...LOC 1832Z 171DEG 37KT 4178 8586 4175 8527
CASSpecial weather statement, Apr 10, 3:18 PM EDT, 7 minutes before
Special Weather Statement National Weather Service Grand Rapids MI 318 PM EDT Sat Apr 10 2021 MIZ073-074-102000- Calhoun-Jackson- 318 PM EDT Sat Apr 10 2021 ...THUNDERSTORMS AFFECTING CALHOUN AND JACKSON COUNTIES... At 316 PM EDT, radar indicated thunderstorms located Althens, Tekonsha, Concord, and Clark Lake, moving north at 30 mph. Winds in excess of 40 mph are possible with these storms. Locations impacted include... Jackson... Albion... Marshall... Battle Creek... Homer... Union City... Brooklyn... Grass Lake... Burlington... Vandercook Lake... Brownlee Park... Level Park-Oak Park... Leoni... Spring Arbor... Napoleon... Sandstone... Norvell... Marengo... Pulaski... Concord... Cloud to ground lightning is occurring with these storms. If outdoors, seek shelter inside a building. LAT...LON 4242 8530 4242 8413 4208 8413 4207 8529 TIME...MOT...LOC 1916Z 169DEG 27KT 4209 8524 4210 8467 4210 8428 CAS
Special weather statement, Apr 10, 3:25 PM EDT, 0 minutes before
Special Weather Statement National Weather Service Grand Rapids MI 325 PM EDT Sat Apr 10 2021 MIZ064>067-102030- Ingham-Eaton-Allegan-Barry- 325 PM EDT Sat Apr 10 2021 ...THUNDERSTORMS WILL AFFECT ALLEGAN...INGHAM... BARRY... AND EATON COUNTIES... At 325 PM EDT, radar indicated thunderstorms located near Interstate 94 affecting Van Buren... Kalamazoo... Calhoun... and Jackson counties. These storms were moving north at 40 mph. Lightning strikes and winds in excess of 40 mph are possible with these storms. Locations impacted include... Lansing... Holland... Charlotte... Mason... Hastings... Eaton Rapids... Allegan... East Lansing... Grand Ledge... Wayland... Otsego... Williamston... Plainwell... Middleville... Potterville... Lake Odessa... Leslie... Nashville... Fennville... Bellevue... If outdoors, seek shelter inside a building. LAT...LON 4242 8627 4277 8621 4278 8416 4242 8414 TIME...MOT...LOC 1923Z 173DEG 33KT 4225 8609 4213 8433 CAS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 2:38 PM EDT | Special Weather Statement | GRR | Kalamazoo, Van Buren | 52 min |
| Apr 10, 3:18 PM EDT | Special Weather Statement | GRR | Calhoun, Jackson | 42 min |
| Apr 10, 4:11 PM EDT | Special Weather Statement | GRR | Kent, Ottawa | 49 min |
| Apr 10, 4:26 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Ottawa | 27 min |
Nearby
Special Weather Statements in Michigan, 2021Every special weather statement in 2021
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.