Alert archive / Michigan / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 67, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jul 2, 2011, 4:49 PM EDT for Arenac County, Iosco County, Ogemaw County, Michigan. It was in force for 39 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
- Jul 2, 2011, 4:49 PM EDT (20:49 UTC)
- Expired
- Jul 2, 2011, 5:28 PM EDT
- In force
- 39 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Arenac County, MI, Iosco County, MI, Ogemaw County, MI
The radar
The NCL Michigan radar (KAPX), 99 km from the middle of the area, began a volume at 20:49 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 2, 5:05 PM EDT | HAIL 0.7 | Alger, MI |
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 2, 2:24 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 8.8 hours before the alert went out and 165 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
- 766 J/kg
- Mixed-layer CIN
- -265 J/kg
- Mixed-layer LCL
- 1506 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -2.7
The text
As transmitted, in the capitals the NWS used until 2016.
607
WUUS53 KAPX 022049
SVRAPX
MIC011-069-129-022130-
/O.NEW.KAPX.SV.W.0067.110702T2049Z-110702T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
449 PM EDT SAT JUL 2 2011
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN ARENAC COUNTY IN NORTHERN LOWER MICHIGAN...
SOUTHWESTERN IOSCO COUNTY IN NORTHERN LOWER MICHIGAN...
SOUTHEASTERN OGEMAW COUNTY IN NORTHERN LOWER MICHIGAN...
* UNTIL 530 PM EDT
* AT 444 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
SKIDWAY LAKE...OR 6 MILES NORTH OF ALGER...AND MOVING EAST AT 20
MPH.
* LOCATIONS IMPACTED INCLUDE...
SKIDWAY LAKE...MAPLE RIDGE...WHITTEMORE...OMER...TWINING...
TURNER...NATIONAL CITY AND PRESCOTT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.
&&
LAT...LON 4411 8416 4416 8416 4417 8422 4430 8417
4424 8368 4402 8376
TIME...MOT...LOC 2049Z 284DEG 18KT 4419 8407
WIND...HAIL 60MPH 1.00IN
$$2 follow-up statements
254
WWUS34 KAPX 022115
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
515 PM EDT SAT JUL 2 2011
MIC011-069-129-022130-
/O.CON.KAPX.SV.W.0067.000000T0000Z-110702T2130Z/
ARENAC MI-IOSCO MI-OGEMAW MI-
515 PM EDT SAT JUL 2 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
OGEMAW...SOUTHWESTERN IOSCO AND NORTHERN ARENAC COUNTIES UNTIL 530 PM
EDT...
AT 512 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
MAPLE RIDGE...OR 8 MILES NORTHEAST OF STERLING...MOVING SOUTHEAST AT
20 MPH.
LOCATIONS IMPACTED INCLUDE...
WHITTEMORE...TURNER...OMER...TWINING AND NATIONAL CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.
&&
LAT...LON 4411 8416 4416 8416 4428 8398 4424 8368
4402 8376
TIME...MOT...LOC 2116Z 298DEG 18KT 4413 8390
WIND...HAIL 60MPH 1.00IN
$$330
WWUS34 KAPX 022128
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
528 PM EDT SAT JUL 2 2011
MIC011-069-129-022138-
/O.CAN.KAPX.SV.W.0067.000000T0000Z-110702T2130Z/
ARENAC MI-IOSCO MI-OGEMAW MI-
528 PM EDT SAT JUL 2 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OGEMAW...
SOUTHWESTERN IOSCO AND NORTHERN ARENAC COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED ACROSS THE WARNED
AREA.
LAT...LON 4411 8416 4416 8416 4428 8398 4424 8368
4402 8376
TIME...MOT...LOC 2128Z 284DEG 18KT 4414 8381
WIND...HAIL <50MPH <.50IN
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 2:28 PM EDT | Severe Thunderstorm Warning | APX | Gladwin, Ogemaw, Roscommon | 62 min |
| Jul 2, 4:17 PM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin | 36 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2011Every severe thunderstorm warning in 2011
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.