Alert archive / Michigan / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 3, NWS Gaylord, MI

February 24, 2017Crawford County, Montmorency County, Oscoda County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Feb 24, 2017, 4:30 PM EST for Crawford County, Montmorency County, Oscoda County, Michigan. It was in force for 45 min. 1 report 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
Feb 24, 2017, 4:30 PM EST (21:30 UTC)
Expired
Feb 24, 2017, 5:15 PM EST
In force
45 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Crawford County, MI, Montmorency County, MI, Oscoda County, MI

The radar

The NCL Michigan radar (KAPX), 39 km from the middle of the area, began a volume at 21:32 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

TimeReportWhereRemark
Feb 24, 4:58 PM ESTHAIL 1.5Comins, MIDELAYED REPORT. TIME ESTIMATED VIA RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 9.5 hours before the alert went out and 155 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.

Skew-T log-pSkew-T log-p diagram, Alpena, MI at 12:00Z on 2017-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 12:00Z on 2017-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
462 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
650 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

926 
WUUS53 KAPX 242130
SVRAPX
MIC039-119-135-242215-
/O.NEW.KAPX.SV.W.0003.170224T2130Z-170224T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
430 PM EST FRI FEB 24 2017

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Southeastern Crawford County in northern Michigan...
  Southeastern Montmorency County in northern Michigan...
  Northern Oscoda County in northern Michigan...

* Until 515 PM EST

* At 429 PM EST, a severe thunderstorm was located near South Branch
  Township, or 9 miles northeast of Roscommon, moving northeast at 55
  mph.

  HAZARD...Quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Damage to vehicles is expected. 

* Locations impacted include...
  Lewiston, Comins, Hillman, South Branch Township, Red Oak, Lockwood
  Lake, Loud Township and Garland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4451 8452 4465 8467 4511 8390 4484 8389
TIME...MOT...LOC 2129Z 231DEG 46KT 4462 8450 

HAIL...1.00IN
WIND...<50MPH
 
$$

adam
3 follow-up statements
810 
WWUS53 KAPX 242146
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
446 PM EST FRI FEB 24 2017

MIC039-242155-
/O.CAN.KAPX.SV.W.0003.000000T0000Z-170224T2215Z/
Crawford MI-
446 PM EST FRI FEB 24 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CRAWFORD COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4459 8437 4482 8437 4511 8390 4484 8389
TIME...MOT...LOC 2145Z 231DEG 47KT 4475 8424 

$$

MIC119-135-242215-
/O.CON.KAPX.SV.W.0003.000000T0000Z-170224T2215Z/
Montmorency MI-Oscoda MI-
446 PM EST FRI FEB 24 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EST
FOR SOUTHEASTERN MONTMORENCY AND NORTHERN OSCODA COUNTIES...

At 445 PM EST, a severe thunderstorm was located near Red Oak, or 7
miles northwest of Mio, moving northeast at 55 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Lewiston, Comins, Hillman, Red Oak, Lockwood Lake, Loud Township and
Garland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4459 8437 4482 8437 4511 8390 4484 8389
TIME...MOT...LOC 2145Z 231DEG 47KT 4475 8424 

HAIL...1.00IN
WIND...<50MPH
 
$$

adam
993 
WWUS53 KAPX 242202
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
502 PM EST FRI FEB 24 2017

MIC119-135-242215-
/O.CON.KAPX.SV.W.0003.000000T0000Z-170224T2215Z/
Montmorency MI-Oscoda MI-
502 PM EST FRI FEB 24 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EST
FOR SOUTHEASTERN MONTMORENCY AND NORTHEASTERN OSCODA COUNTIES...

At 502 PM EST, a severe thunderstorm was located near Comins, or 14
miles northeast of Mio, moving northeast at 55 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Comins, Lockwood Lake and Loud Township. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4471 8414 4488 8421 4500 8390 4484 8389
TIME...MOT...LOC 2202Z 236DEG 47KT 4484 8398 

HAIL...1.00IN
WIND...<50MPH
 
$$

adam
442 
WWUS53 KAPX 242212
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
512 PM EST FRI FEB 24 2017

MIC119-135-242221-
/O.EXP.KAPX.SV.W.0003.000000T0000Z-170224T2215Z/
Montmorency MI-Oscoda MI-
512 PM EST FRI FEB 24 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONTMORENCY AND
NORTHEASTERN OSCODA COUNTIES WILL EXPIRE AT 515 PM EST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Gaylord.

LAT...LON 4471 8414 4488 8421 4500 8390 4484 8389
TIME...MOT...LOC 2211Z 231DEG 46KT 4491 8385 

$$

adam

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 24, 2:51 PM ESTSpecial Weather StatementAPXOscoda39 min
Feb 24, 3:25 PM ESTSpecial Weather StatementAPXAlpena50 min
Feb 24, 3:40 PM ESTSevere Thunderstorm WarningAPXMissaukee, Wexford35 min
Feb 24, 4:01 PM ESTSpecial Weather StatementAPXGladwin29 min
Feb 24, 4:06 PM ESTSevere Thunderstorm WarningAPXCrawford, Missaukee, Roscommon24 min
Feb 24, 4:34 PM ESTSpecial Weather StatementAPXCrawford, Missaukee41 min
Feb 24, 5:34 PM ESTSpecial Weather StatementAPXOgemaw26 min
Feb 24, 5:36 PM ESTSpecial Weather StatementAPXAntrim24 min
Feb 24, 6:05 PM ESTSpecial Weather StatementAPXOscoda25 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.