Alert archive / Michigan / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 83, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Sep 26, 2011, 7:55 AM EDT for Arenac County, Gladwin County, Ogemaw County, Michigan. It was in force for 36 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
- Sep 26, 2011, 7:55 AM EDT (11:55 UTC)
- Expired
- Sep 26, 2011, 8:31 AM EDT
- In force
- 36 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Arenac County, MI, Gladwin County, MI, Ogemaw County, MI
The radar
The NCL Michigan radar (KAPX), 101 km from the middle of the area, began a volume at 11:57 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 00:00Z, 11.9 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
- 564 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
464
WUUS53 KAPX 261155
SVRAPX
MIC011-051-129-261245-
/O.NEW.KAPX.SV.W.0083.110926T1155Z-110926T1245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
755 AM EDT MON SEP 26 2011
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ARENAC COUNTY IN NORTHERN LOWER MICHIGAN...
NORTHEASTERN GLADWIN COUNTY IN NORTHERN LOWER MICHIGAN...
SOUTHERN OGEMAW COUNTY IN NORTHERN LOWER MICHIGAN...
* UNTIL 845 AM EDT
* AT 752 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM MAPLE RIDGE TO 6 MILES NORTHWEST OF ALGER...AND MOVING NORTH
AT 40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
* LOCATIONS IMPACTED INCLUDE...
WEST BRANCH...MAPLE RIDGE...SKIDWAY LAKE...SELKIRK AND PRESCOTT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4401 8405 4407 8436 4434 8435 4435 8388
4416 8389 4416 8388 4399 8386
TIME...MOT...LOC 1154Z 193DEG 35KT 4411 8390 4421 8417
WIND...HAIL 60MPH 0.75IN
$$2 follow-up statements
610
WWUS34 KAPX 261211
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
811 AM EDT MON SEP 26 2011
MIC051-261220-
/O.CAN.KAPX.SV.W.0083.000000T0000Z-110926T1245Z/
GLADWIN MI-
811 AM EDT MON SEP 26 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GLADWIN COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4412 8410 4414 8416 4416 8417 4416 8430
4417 8434 4434 8435 4433 8389 4405 8390
TIME...MOT...LOC 1210Z 193DEG 35KT 4426 8413 4435 8431
WIND...HAIL <50MPH <.50IN
$$
MIC011-129-261245-
/O.CON.KAPX.SV.W.0083.000000T0000Z-110926T1245Z/
ARENAC MI-OGEMAW MI-
811 AM EDT MON SEP 26 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
OGEMAW AND NORTHWESTERN ARENAC COUNTIES UNTIL 845 AM EDT...
AT 806 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 5 MILES WEST OF SKIDWAY LAKE TO WEST BRANCH...MOVING NORTHWEST
AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
SELKIRK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4412 8410 4414 8416 4416 8417 4416 8430
4417 8434 4434 8435 4433 8389 4405 8390
TIME...MOT...LOC 1210Z 193DEG 35KT 4426 8413 4435 8431
WIND...HAIL 60MPH 0.75IN
$$
JK728
WWUS34 KAPX 261231
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
831 AM EDT MON SEP 26 2011
MIC011-129-261241-
/O.CAN.KAPX.SV.W.0083.000000T0000Z-110926T1245Z/
ARENAC MI-OGEMAW MI-
831 AM EDT MON SEP 26 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN OGEMAW AND
NORTHWESTERN ARENAC COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.
LAT...LON 4412 8410 4414 8416 4416 8417 4416 8430
4417 8434 4434 8435 4433 8389 4405 8390
TIME...MOT...LOC 1231Z 193DEG 35KT 4446 8406 4455 8425
WIND...HAIL <50MPH <.50IN
$$
JKNearby
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.