Alert archive / Michigan / Winter Storm Warnings in 2016
Winter Storm Warning 7, NWS Detroit, MI
NWS Detroit, MI issued this winter storm warning at Dec 11, 2016, 3:59 AM EST for 16 counties in Michigan. It was in force for 23 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 11, 2016, 3:59 AM EST (08:59 UTC)
- Expired
- Dec 12, 2016, 3:06 AM EST
- In force
- 23 hr
- Issued by
- NWS Detroit, MI
Counties Bay County, MI, Genesee County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 20 km from the middle of the area, began a volume at 09:01 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 |
|---|---|---|---|
| Dec 11, 7:00 AM EST | SNOW 1.5 | 4 Sw Flint, MI | 6-HOUR TOTAL AT FLINT BISHOP AIRPORT |
| Dec 11, 7:00 AM EST | SNOW 1.8 | 1 Ssw Romulus, MI | 6-HOUR TOTAL AT DETROIT METRO AIRPORT |
| Dec 11, 7:00 AM EST | SNOW 2.3 | 4 E White Lake, MI | 6-HOUR TOTAL AT NWS WHITE LAKE OFFICE |
| Dec 11, 7:00 AM EST | SNOW 2.4 | Ann Arbor, MI | 6-HOUR TOTAL |
| Dec 11, 7:04 AM EST | SNOW 1.5 | Brownstown Township, MI | 6-HOUR TOTAL |
| Dec 11, 7:20 AM EST | SNOW 2.2 | 2 Nne Wixom, MI | REPORT VIA FACEBOOK. 6-HOUR TOTAL. |
| Dec 11, 8:28 AM EST | SNOW 1.7 | 1 Ne Howell, MI | 7-HOUR TOTAL |
| Dec 11, 8:30 AM EST | SNOW 1.2 | Lapeer, MI | 6-HOUR TOTAL |
| Dec 11, 8:42 AM EST | SNOW 2.5 | Ypsilanti, MI | 8-HOUR TOTAL SNOWFALL |
| Dec 11, 8:48 AM EST | SNOW 1.5 | Dundee, MI | 7-HOUR TOTAL |
| Dec 11, 8:53 AM EST | SNOW 2 | 2 Ese Flint, MI | ABC 12 WJRT 7-HOUR TOTAL |
| Dec 11, 9:00 AM EST | SNOW 2.6 | 5 Sse Livonia, MI | REPORT VIA TWITTER. 8-HOUR TOTAL AT 9AM. |
| Dec 11, 9:03 AM EST | SNOW 2 | Sterling Heights, MI | INTERSECTION OF 18 MILE AND RYAN. 7-HOUR TOTAL SNOWFALL. |
| Dec 11, 9:45 AM EST | SNOW 3.2 | 3 E Milford, MI | REPORT VIA TWITTER. 9-HOUR TOTAL. |
| Dec 11, 9:55 AM EST | SNOW 1.5 | 2 N Saginaw, MI | REPORT VIA FACEBOOK. 8-HOUR TOTAL. |
| Dec 11, 10:02 AM EST | SNOW 1.5 | 2 W Peck, MI | REPORT VIA FACEBOOK. 7-HOUR TOTAL. SNOWFALL RATE INCREASING. |
| Dec 11, 10:05 AM EST | SNOW 2.5 | 5 Sse Carleton, MI | REPORT VIA FACEBOOK. 8-HOUR TOTAL. |
| Dec 11, 10:15 AM EST | SNOW 2 | Midland, MI | REPORT VIA FACEBOOK. 9-HOUR TOTAL. SNOWFALL RATE INCREASING. |
| Dec 11, 10:15 AM EST | SNOW 3.5 | Montrose, MI | 8-HOUR TOTAL |
| Dec 11, 10:30 AM EST | SNOW 3.1 | 2 Nne Wixom, MI | REPORT VIA FACEBOOK. 9-HOUR TOTAL. |
| Dec 11, 10:55 AM EST | SNOW 1.7 | 4 N Burton, MI | NEW 4-HOUR SNOWFALL SINCE 7AM. |
| Dec 11, 10:55 AM EST | SNOW 3 | Grand Blanc, MI | REPORT FROM ABC 12 WJRT. 9-HOUR TOTAL. |
| Dec 11, 11:00 AM EST | SNOW 3 | Midland, MI | REPORT VIA FACEBOOK. 10-HOUR TOTAL. 1.0 INCH IN LAST HOUR. |
| Dec 11, 11:05 AM EST | SNOW 4.5 | Linden, MI | 9-HOUR TOTAL |
| Dec 11, 11:15 AM EST | SNOW 4 | Ann Arbor, MI | REPORT FROM U OF M CAMPUS. 10-HOUR TOTAL. SNOW GETTING WETTER. |
| Dec 11, 11:19 AM EST | SNOW 2.8 | 2 N Saginaw, MI | REPORT VIA FACEBOOK. 10-HOUR TOTAL. 1.3 INCHES IN LAST 1.5 HOUR. |
| Dec 11, 11:42 AM EST | SNOW 3 | Marlette, MI | 9-HOUR TOTAL |
| Dec 11, 11:42 AM EST | SNOW 4 | 2 W Peck, MI | REPORT VIA FACEBOOK. 9-HOUR TOTAL. QUARTER-SIZED SNOWFLAKES FALLING AT TIME OF REPORT. |
| Dec 11, 12:00 PM EST | SNOW 2.8 | 3 Nw Downtown Detroit, MI | 9-HOUR TOTAL. 1.0 INCH IN LAST 4 HOURS. |
| Dec 11, 12:00 PM EST | SNOW 3.7 | 2 Se Freeland, MI | 10-HOUR TOTAL.1.5 INCHES OF NEW SNOW IN LAST 2 HOURS. |
| Dec 11, 12:05 PM EST | SNOW 3.4 | Garden City, MI | REPORT VIA TWITTER. 11-HOUR TOTAL. |
| Dec 11, 12:10 PM EST | SNOW 4.5 | 2 Ne Corunna, MI | 12-HOUR TOTAL |
| Dec 11, 12:14 PM EST | SNOW 3.7 | Clarkston, MI | 24 HR SNOWFALL TOTAL |
| Dec 11, 12:29 PM EST | SNOW 5 | Waterford, MI | 11-HOUR TOTAL |
| Dec 11, 12:39 PM EST | SNOW 5 | Ann Arbor, MI | 12 HR SNOWFALL TOTAL. 1.0 NEW SNOW IN PAST 2 HRS. U OF M. |
| Dec 11, 12:40 PM EST | SNOW 3.7 | Detroit, MI | 12 HR SNOWFALL TOTAL. 1.9 NEW SNOW IN PAST 6 HRS. DETROIT METRO AIRPORT |
| Dec 11, 12:55 PM EST | SNOW 4 | Midland, MI | 12 HR SNOWFALL TOTAL VIA FACEBOOK |
| Dec 11, 12:58 PM EST | SNOW 4 | Sterling Heights, MI | 11 HR SNOWFALL TOTAL. 2 INCHES NEW SNOW IN THE PAST 4 HRS. NEAR 18 MILE. |
| Dec 11, 1:00 PM EST | SNOW 4.3 | Flint, MI | 12 HR SNOWFALL TOTAL. 2.8 INCHES NEW SNOW PAST 6 HRS. 5 INCH SNOW DEPTH. FLINT BISHOP AIRPORT. |
| Dec 11, 1:00 PM EST | SNOW 4.7 | 4 E White Lake, MI | 12 HR SNOWFALL TOTAL. 2.4 INCHES NEW SNOW IN PAST 6 HRS. SNOW DEPTH 7 INCHES. NWS WHITE LAKE |
| Dec 11, 1:18 PM EST | SNOW 4.5 | Freeland, MI | 12 HR SNOWFALL TOTAL. PATTERSON RD NR FREELAND AND KENT ROADS. |
| Dec 11, 1:25 PM EST | SNOW 2.8 | Columbus, MI | 12 HR SNOWFALL TOTAL VIA TWITTER |
| Dec 11, 1:40 PM EST | SNOW 4.2 | 2 Nne Wixom, MI | 12 HR SNOWFALL TOTAL VIA FACEBOOK. |
| Dec 11, 1:54 PM EST | SNOW 6 | 2 S Midland, MI | 12 HR SNOWFALL TOTAL |
| Dec 11, 2:02 PM EST | SNOW 5 | Freeland, MI | 13HR SNOWFALL TOTAL 2 MILES S OF MBS. 1.3 INCHES IN THE PAST 2 HRS. |
| Dec 11, 2:03 PM EST | SNOW 3.6 | Farmington, MI | 14 HR SNOWFALL TOTAL. 1.8 INCHES NEW SNOW IN PAST 7 HRS. SNOW DEPTH 4 INCHES. |
| Dec 11, 2:08 PM EST | SNOW 5.5 | 5 Nw Saginaw, MI | 12 HR SNOWFALL TOTAL. |
| Dec 11, 2:09 PM EST | SNOW 6 | Linden, MI | 13 HR SNOWFALL TOTAL. |
| Dec 11, 2:16 PM EST | SNOW 5.1 | Lake Orion, MI | 13 HR SNOWFALL TOTAL BETWEEN LAKEVILLE AND LAKE ORION VIA TWITTER. |
| Dec 11, 2:20 PM EST | SNOW 4.5 | Ann Arbor, MI | 13 HR SNOWFALL TOTAL VIA TWITTER |
| Dec 11, 2:20 PM EST | SNOW 4.5 | Ann Arbor, MI | 14 HR SNOWFALL TOTAL VIA TWITTER |
| Dec 11, 2:22 PM EST | SNOW 4 | Chesterfield Township, MI | 11 HR SNOWFALL TOTAL VIA FACEBOOK. |
| Dec 11, 2:29 PM EST | SNOW 4.5 | Bridgeport, MI | 13 HR SNOWFALL TOTAL VIA FACEBOOK |
| Dec 11, 2:38 PM EST | SNOW 6.1 | Ann Arbor, MI | 13HR SNOWFALL TOTAL. 1.1 INCHES NEW IN PAST 2 HRS. U OF M CAMPUS. |
| Dec 11, 2:40 PM EST | SNOW 3.2 | Port Huron, MI | 12 HR SNOWFALL TOTAL 2 MILES WEST OF THE BLUE WATER BRIDGE...VIA FACEBOOK. |
| Dec 11, 2:45 PM EST | SNOW 5.5 | Brighton, MI | 14 HR SNOWFALL TOTAL. |
| Dec 11, 2:45 PM EST | SNOW 5.5 | Ypsilanti, MI | 14 HR SNOWFALL TOTAL BETWEEN MICHIGAN AVE. AND HARRIS RD...VIA FACEBOOK |
| Dec 11, 3:04 PM EST | SNOW 5 | N Livonia, MI | 13 HR SNOWFALL TOTAL. |
| Dec 11, 3:06 PM EST | SNOW 4 | 3 Sse Ypsilanti, MI | 13 HR SNOWFALL TOTAL NEAR TEXTILE AND WHITTAKER RDS. |
| Dec 11, 3:06 PM EST | SNOW 4.3 | Garden City, MI | 14 HR SNOWFALL TOTAL VIA TWITTER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 9.0 hours before the alert went out and 20 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
- 514 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
464 WWUS43 KDTX 110859 WSWDTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 359 AM EST SUN DEC 11 2016 ...LONG DURATION SNOW EVENT TODAY AND TONIGHT... MIZ063-068>070-075-076-082-083-111700- /O.UPG.KDTX.WW.Y.0015.161211T0900Z-161212T0900Z/ /O.NEW.KDTX.WS.W.0007.161211T0900Z-161212T0900Z/ ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE- MONROE- INCLUDING THE CITIES OF...PORT HURON...HOWELL...PONTIAC... WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE 359 AM EST SUN DEC 11 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW, WHICH IS IN EFFECT UNTIL 4 AM EST MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. HAZARDOUS WEATHER... * A LONG DURATION SNOW WILL AFFECT THE AREA...RESULTING IN STORM TOTAL SNOWFALL OF 6 TO 10 INCHES BY LATE SUNDAY NIGHT. * LIGHT SNOW WILL PERSIST THROUGH THE MORNING. THE INTENSITY OF THE SNOW WILL INCREASE DURING THE AFTERNOON. THE PERIOD OF HEAVIEST SNOW, POSSIBLY AROUND AN INCH PER HOUR AT TIMES, WILL OCCUR BETWEEN 3 PM AND 11 PM. * SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL REMAIN IN THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BECOME SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA THIS AFTERNOON AND TONIGHT.. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. * PREPARE...PLAN...AND STAY INFORMED. VISIT HTTP://GO.USA.GOV/C7KKP && $$ MIZ047>049-054-055-111700- /O.EXT.KDTX.WW.Y.0015.161211T0900Z-161212T0900Z/ MIDLAND-BAY-HURON-TUSCOLA-SANILAC- INCLUDING THE CITIES OF...MIDLAND...BAY CITY...BAD AXE...CARO... SANDUSKY 359 AM EST SUN DEC 11 2016 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM EST MONDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 4 AM EST MONDAY. HAZARDOUS WEATHER... * A LONG DURATION SNOW WILL AFFECT THE AREA...RESULTING IN STORM TOTAL SNOWFALL OF 4 TO 6 INCHES BY LATE TONIGHT. * LIGHT SNOW WILL PERSIST THIS MORNING. THE SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO FALL BETWEEN 3 PM AND 11 PM. * SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL REMAIN IN THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BECOME SNOW COVERED AND SLICK... IMPACTING TRAVEL ACROSS THE AREA TODAY AND TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * PREPARE...PLAN...AND STAY INFORMED. VISIT HTTP://GO.USA.GOV/C7KKP && $$ MIZ053-111700- /O.CON.KDTX.WW.Y.0015.161211T0900Z-161212T0900Z/ SAGINAW- INCLUDING THE CITY OF...SAGINAW 359 AM EST SUN DEC 11 2016 HAZARDOUS WEATHER... * A LONG DURATION SNOW WILL AFFECT THE AREA...RESULTING IN STORM TOTAL SNOWFALL OF 4 TO 6 INCHES BY LATE TONIGHT. * LIGHT SNOW WILL PERSIST THIS MORNING. THE SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO FALL BETWEEN 3 PM AND 11 PM. * SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL REMAIN IN THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BECOME SNOW COVERED AND SLICK... IMPACTING TRAVEL ACROSS THE AREA TODAY AND TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * PREPARE...PLAN...AND STAY INFORMED. VISIT HTTP://GO.USA.GOV/C7KKP && $$ MIZ060>062-111700- /O.CON.KDTX.WW.Y.0015.161211T0900Z-161212T0900Z/ SHIAWASSEE-GENESEE-LAPEER- INCLUDING THE CITIES OF...OWOSSO...FLINT...LAPEER 359 AM EST SUN DEC 11 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... HAZARDOUS WEATHER... * A LONG DURATION SNOW WILL AFFECT THE AREA...RESULTING IN STORM TOTAL SNOWFALL OF 5 TO 8 INCHES BY LATE TONIGHT. * LIGHT SNOW WILL PERSIST THIS MORNING. THE SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO FALL BETWEEN 3 PM AND 11 PM. * SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL REMAIN IN THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BECOME SNOW COVERED AND SLICK... IMPACTING TRAVEL ACROSS THE AREA TODAY AND TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * PREPARE...PLAN...AND STAY INFORMED. VISIT HTTP://GO.USA.GOV/C7KKP && $$ SC
5 follow-up statements
982
WWUS43 KDTX 111634
WSWDTX
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1134 AM EST SUN DEC 11 2016
...SNOW BECOMING HEAVY AT TIMES LATE THIS AFTERNOON INTO EARLY
THIS EVENING...
MIZ060>062-120300-
/O.UPG.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/
/O.EXA.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/
SHIAWASSEE-GENESEE-LAPEER-
INCLUDING THE CITIES OF...OWOSSO...FLINT...LAPEER
1134 AM EST SUN DEC 11 2016
...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST MONDAY...
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
WINTER STORM WARNING FOR SNOW, WHICH IS IN EFFECT UNTIL 4 AM EST
MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.
HAZARDOUS WEATHER...
* SNOW BECOMING HEAVY AT TIMES LATE THIS AFTERNOON AND EARLY
THIS EVENING...RESULTING IN STORM TOTAL SNOWFALL OF 6 TO 9 INCHES
BY MIDNIGHT.
* SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE
LOWER 30S OVERNIGHT THROUGH MONDAY MORNING.
IMPACTS...
* ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS...
IMPACTING TRAVEL ACROSS THE AREA THIS AFTERNOON AND TONIGHT..
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.
* PREPARE...PLAN...AND STAY INFORMED. VISIT
HTTP://GO.USA.GOV/C7KKP
&&
$$
MIZ063-068>070-075-076-082-083-120300-
/O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-
MONROE-
INCLUDING THE CITIES OF...PORT HURON...HOWELL...PONTIAC...
WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE
1134 AM EST SUN DEC 11 2016
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY...
HAZARDOUS WEATHER...
* SNOW BECOMING HEAVY AT TIMES LATE THIS AFTERNOON AND EARLY THIS
EVENING...RESULTING IN STORM TOTAL SNOWFALL OF 7 TO 10 INCHES
BY MIDNIGHT.
* SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE
LOWER 30S OVERNIGHT THROUGH MONDAY MORNING.
IMPACTS...
* ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS...
IMPACTING TRAVEL ACROSS THE AREA THIS AFTERNOON AND TONIGHT..
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.
* PREPARE...PLAN...AND STAY INFORMED. VISIT
HTTP://GO.USA.GOV/C7KKP
&&
$$
MIZ047>049-053>055-120300-
/O.CON.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-
INCLUDING THE CITIES OF...MIDLAND...BAY CITY...BAD AXE...
SAGINAW...CARO...SANDUSKY
1134 AM EST SUN DEC 11 2016
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
MONDAY...
HAZARDOUS WEATHER...
* SNOW WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL
SNOWFALL OF 4 TO 7 INCHES.
* SNOW WILL END AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE
LOWER 30S OVERNIGHT THROUGH MONDAY MORNING.
IMPACTS...
* ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS
THE AREA THROUGH TONIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.
* PREPARE...PLAN...AND STAY INFORMED. VISIT
HTTP://GO.USA.GOV/C7KKP
&&
$$
SF884 WWUS43 KDTX 111945 WSWDTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 245 PM EST SUN DEC 11 2016 ...SNOW BECOMING HEAVY AT TIMES LATE THIS AFTERNOON INTO EARLY THIS EVENING... MIZ053>055-120345- /O.UPG.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ /O.EXA.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ SAGINAW-TUSCOLA-SANILAC- INCLUDING THE CITIES OF...SAGINAW...CARO...SANDUSKY 245 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A WINTER STORM WARNING FOR SNOW, WHICH IS IN EFFECT UNTIL 4 AM EST MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. HAZARDOUS WEATHER... * SNOW WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL SNOWFALL OF 6 TO 9 INCHES. * SNOW WILL END SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT.. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ060>063-068>070-075-076-082-083-120345- /O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB- WASHTENAW-WAYNE-LENAWEE-MONROE- INCLUDING THE CITIES OF...OWOSSO...FLINT...LAPEER...PORT HURON... HOWELL...PONTIAC...WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE 245 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * SNOW BECOMING HEAVY AT TIMES LATE THIS AFTERNOON AND EARLY THIS EVENING...RESULTING IN STORM TOTAL SNOWFALL OF 7 TO 11 INCHES BY MIDNIGHT. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT.. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ047>049-120345- /O.CON.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ MIDLAND-BAY-HURON- INCLUDING THE CITIES OF...MIDLAND...BAY CITY...BAD AXE 245 PM EST SUN DEC 11 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * SNOW WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL SNOWFALL OF 5 TO 8 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ SF
976 WWUS43 KDTX 120001 WSWDTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 701 PM EST SUN DEC 11 2016 ...SNOW WILL CONTINUE TO BE HEAVY AT TIMES THIS EVENING BEFORE ENDING AFTER MIDNIGHT... MIZ047-048-120815- /O.UPG.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ /O.EXA.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ MIDLAND-BAY- INCLUDING THE CITIES OF...MIDLAND...BAY CITY 701 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 4 AM EST MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. HAZARDOUS WEATHER... * SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL SNOWFALL OF 6 TO 10 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ060>063-068>070-075-076-082-083-120815- /O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB- WASHTENAW-WAYNE-LENAWEE-MONROE- INCLUDING THE CITIES OF...OWOSSO...FLINT...LAPEER...PORT HURON... HOWELL...PONTIAC...WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE 701 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * SNOW...HEAVY AT TIMES...WILL CONTINUE EARLY THIS EVENING...RESULTING IN STORM TOTAL SNOWFALL OF 7 TO 11 INCHES BY MIDNIGHT. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ053>055-120815- /O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ SAGINAW-TUSCOLA-SANILAC- INCLUDING THE CITIES OF...SAGINAW...CARO...SANDUSKY 701 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * SNOW WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL SNOWFALL OF 6 TO 9 INCHES. * SNOW WILL END SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ049-120815- /O.CON.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ HURON- INCLUDING THE CITY OF...BAD AXE 701 PM EST SUN DEC 11 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * SNOW WILL CONTINUE THROUGH MIDNIGHT...RESULTING IN STORM TOTAL SNOWFALL OF 5 TO 8 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS THE AREA THROUGH TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ RBP
165 WWUS43 KDTX 120213 WSWDTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 913 PM EST SUN DEC 11 2016 ...SNOW WILL COME TO AN END JUST AFTER MIDNIGHT... MIZ060>063-068>070-075-076-082-083-120900- /O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB- WASHTENAW-WAYNE-LENAWEE-MONROE- INCLUDING THE CITIES OF...OWOSSO...FLINT...LAPEER...PORT HURON... HOWELL...PONTIAC...WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE 913 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * STORM TOTAL SNOWFALL OF 7 TO 12 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL CONTINUE TO BE SNOW COVERED AND VERY HAZARDOUS... IMPACTING TRAVEL ACROSS THE AREA TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ047-048-053>055-120900- /O.CON.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ MIDLAND-BAY-SAGINAW-TUSCOLA-SANILAC- INCLUDING THE CITIES OF...MIDLAND...BAY CITY...SAGINAW...CARO... SANDUSKY 913 PM EST SUN DEC 11 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * STORM TOTAL SNOWFALL OF 6 TO 10 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS THE AREA TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ MIZ049-120900- /O.CON.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ HURON- INCLUDING THE CITY OF...BAD AXE 913 PM EST SUN DEC 11 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... HAZARDOUS WEATHER... * STORM TOTAL SNOWFALL OF 5 TO 8 INCHES. * SNOW WILL TAPER OFF SHORTLY AFTER MIDNIGHT. TEMPERATURES WILL RISE INTO THE LOWER 30S OVERNIGHT THROUGH MONDAY MORNING. IMPACTS... * ROADS WILL BE SNOW COVERED AND SLICK...IMPACTING TRAVEL ACROSS THE AREA TONIGHT AND INTO MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ RBP
619 WWUS43 KDTX 120806 WSWDTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 306 AM EST MON DEC 12 2016 ...HEAVY SNOW HAS ENDED ACROSS SOUTHEAST MICHIGAN... MIZ047-048-053>055-060>063-068>070-075-076-082-083-120915- /O.CAN.KDTX.WS.W.0007.000000T0000Z-161212T0900Z/ MIDLAND-BAY-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE- MONROE- INCLUDING THE CITIES OF...MIDLAND...BAY CITY...SAGINAW...CARO... SANDUSKY...OWOSSO...FLINT...LAPEER...PORT HURON...HOWELL... PONTIAC...WARREN...ANN ARBOR...DETROIT...ADRIAN...MONROE 306 AM EST MON DEC 12 2016 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE WINTER STORM WARNING. HAZARDOUS WEATHER... * HEAVY SNOW IS NO LONGER A THREAT. IMPACTS... * ROADWAYS WILL REMAIN SNOW COVERED AND SLIPPERY UNTIL TREATED. PRECAUTIONARY/PREPAREDNESS ACTIONS... * FOR MORE INFORMATION VISIT HTTP://GO.USA.GOV/C7KKP. && $$ MIZ049-120915- /O.CAN.KDTX.WW.Y.0015.000000T0000Z-161212T0900Z/ HURON- INCLUDING THE CITY OF...BAD AXE 306 AM EST MON DEC 12 2016 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE WINTER WEATHER ADVISORY. HAZARDOUS WEATHER... * HEAVY SNOW IS NO LONGER A THREAT. IMPACTS... * ROADWAYS WILL REMAIN SNOW COVERED AND SLIPPERY UNTIL TREATED. PRECAUTIONARY/PREPAREDNESS ACTIONS... * FOR MORE INFORMATION VISIT HTTP://GO.USA.GOV/C7KKP. && $$ HLO
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Detroit, MI wrote its last area forecast discussion before this winter storm warning went out at Dec 11, 12:35 AM EST, 3 hours 24 minutes earlier.
Area forecast discussion, Dec 11, 12:35 AM EST, 3 hours 24 minutes before
Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
1235 AM EST Sun Dec 11 2016
.AVIATION...
Snow will spread into the area between 06-08Z, bringing MVFR cigs
and IFR visibilities by 09Z. Snow through 7AM will be fairly light,
with terminals only expected to see around an inch of accumulation.
Heavier snow looks to move into the area after 18Z, lowering
visibilities to 1/2 to 3/4 of a mile and cigs to IFR for a prolonged
period that will last through much of the evening. Some improvement
in visibility is expected during the late evening, as snowfall
intensity begins to wane. Most of the snow should exit by 09Z. Total
accumulations at the terminals are expected to range between 5 and 8
inches.
FOR DTW...Snow is expected to expand into the area by 07Z, with MVFR
and then IFR conditions developing by 09Z. Highest snowfall rates
are expected between 18-04Z, when visibility will likely dip to 1/2
mile at times. Improvement should occur after 04Z, with snow
tapering off around 08Z. Total accumulation at DTW is expected to
range between 6 and 8 inches.
//DTW Threshold Probabilities...
* High for ceilings below 5000 feet after 07z and lasting through
the TAF period.
* Moderate for visibility below 1/2 mile 18-04z
* High for snow as precipitation type through Sunday night.
&&
.PREV DISCUSSION...
Issued at 936 PM EST Sat Dec 10 2016
UPDATE...
The lake effect snows diminished as they reorganized with a
southern flow over Lake Michigan this evening. This has left just
a few flurries in the remnant plume over the PTK and FNT areas.
Outside of that...stratocumulus as dissipated, but plenty of mid
and high cloud to keep the mostly cloudy conditions.
Later tonight, the forecast is on track. Light snow has reached a
SBN to Auburn IN line at 02z. This light snow should over spread
much of the forecast area between 06z and 08z, holding closer to
12z for the thumb region. The moderate snowfall will hold off
closer to daybreak. 18z model runs were in line with their 12z
runs, so do not see a need to change much to the ongoing advisory
or expected amounts.
PREV DISCUSSION...
Issued at 324 PM EST Sat Dec 10 2016
DISCUSSION...
12z dtx sounding indicated 850 mb temp of -16 C, with inversion
height around 800 mb which has been able to support some
disorganized snow shower activity from Lake Michigan working into
southeast Michigan. 12z nam suggests a more focused band (seen in
925 mb omega) in between M-59/I-69 corridors will be lifting north
(toward Saginaw Bay) through the night as winds back to the south.
This band will have potential to produce light localized accumulations
ahead of the main over-running snow shield arriving late tonight.
Upper level energy/wave now onshore, tracking through the Pacific
Northwest. 12z NAM/Canadian/GFS consensus indicates strengthening
mid level wave/500 mb trough reaching the Upper Mississippi River
Vally by 00z Monday, with max 6 hr 500 mb height fall center and
surface low tracking over/near Green Bay, and through far northern
Lower Michigan/Straights Sunday night. This is farther north and
west compared to 24 hours ago. This could impact distribution of the
snowfall across southeast Michigan, as nam suggests higher amounts a
bit farther north, as 700 mb FGEN Band looks to straddle I-69
corridor late in the day on Sunday. Nam also shows 4 G/KG of
specific humidity within the 850-700 mb layer reaching the southern
Michigan border late in the day. Unfortunately, placement and exact
southwest-northeast orientation of the developing 700 mb JET (50-70
knots) Axis over the Central/Eastern Ohio Valley varies
significantly as an important weaker wave exits the Southern Plains.
Thus, GFS and UKMET suggest active frontal zone will reside along
and south of the Michigan border, robbing southeast Michigan of some
moisture.
Isentropic ascent/fgen is very good, but relatively short lived for
any given location. Warm advection leading to average 850-700 MB
temps of -3 to -6 C south of M-59 Sunday afternoon, with -5 to -9 C
across the north, which will support higher snow ratios, and thus
thinking more uniform/widespread snowfall, as the lower qpf in north
is off set by higher ratios. Snow to qpf ratios quickly lowering to
10:1 down south is expected to cap higher totals. Have been debating
all day whether we are looking at more of 5 to 8 inch snowfall, vs 6
to 9 inch. Based off the 12z Euro still remaining more subdued with
moisture advection, only 3 g/kg of specific humidity in the 850-700
mb layer sneaking just past the southern Michigan border and 24 hr
qpf advertised to be in .3 to .6 inch range, prefer to go out with
high end advisory for 5 to 8 inches as suspect mid level fgen will
not stay parked over one particular location too long, but would
expected highest totals in around the Detroit Metro area toward the
border/along triple point. Backed surface-925 mb flow coming off
Lake Erie/Lake St. Clair could even give a modest boost to the low
level convergence as winds reach the higher terrain of the glacier
ridge. Can't rule out isolated/slightly higher totals exceeding 8
inches and possible upgrade to warning criteria, but uncertain on
location this far out. It continues to look like the
accumulating snow will be over before the Monday morning commute
as the aggressive dry slot punches in. Temperatures also look to
be around freezing mark Monday morning, so long as roads are
plowed and salted, should not have big issues on main roads.
Tuesday through Sunday Extended Forecast: Scattered snow showers
will be possible mid-week as upper level Canadian low rotates
multiple weak waves through the Great Lakes Region. It will also
help usher the descent of cold arctic air into southeast Michigan.
Temperatures will fall well below the norm, with high's in the teens
and overnight lows plunging into the single digits. On Friday,
models show a large, complex area of low pressure spreading eastward
across the central U.S. At present time, this low is expected to
reach the western Great Lakes Friday morning and southeast Michigan
later that afternoon. Timing adjustments are likely as the low
develops and progresses.
MARINE...
Moderately gusty westerly winds this evening will gradually diminish
tonight, shifting to southerly by Sunday morning in advance of
approaching low pressure. Any ongoing lake effect squalls will
subsequently shift east into the Canadian waters through this time.
Southerly winds turn gusty late Sunday and Sunday night as the low
advances into the Great Lakes. A brief period of gusts into the 25
to 30 knot range over southern sections of Lake Huron during this
time. Otherwise, the main element with this system becomes a
widespread long duration accumulating snowfall that starts late
tonight and persists through Sunday night. Gusty westerly winds
develop behind this system Monday. The passage of an arctic front
Monday night into early Tuesday will reinforce these winds through
the mid-week period, potentially leading to a period of gales during
this time.
HYDROLOGY...
Low pressure lifting across the area will spread a long-duration
snowfall into Southeast Michigan starting late tonight and lasting
through late Sunday night. Total snowfall of 4 to 9 inches is
expected at this time, with highest totals from the I-69 corridor
southward. Snow intensity is expected to peak during the afternoon
and early evening. Rainfall equivalent of the snow that will fall is
expected to range between one-third and three-quarters of an inch.
Snow will end very early Monday morning.
&&
.DTX WATCHES/WARNINGS/ADVISORIES...
MI...Winter Weather Advisory from 7 AM this morning to 4 AM EST Monday
FOR MIZ047>049-054-055.
Winter Weather Advisory from 4 AM early this morning to 4 AM EST
Monday FOR MIZ053-060>063-068>070-075-076-082-083.
Lake Huron...NONE.
Lake St Clair...NONE.
Michigan waters of Lake Erie...NONE.
&&
AVIATION.....HLO
UPDATE.......RBP
DISCUSSION...SF/DE
MARINE.......MR
HYDROLOGY....MR
You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.Hazardous weather outlook, Dec 10, 3:46 PM EST, 12 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 346 PM EST SAT DEC 10 2016 MIZ047>049-054-055-110930- MIDLAND-BAY-HURON-TUSCOLA-SANILAC- 346 PM EST SAT DEC 10 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A WINTER STORM WEATHER ADVISORY FOR SNOW IS IN EFFECT SUNDAY AND SUNDAY NIGHT. PLEASE REFER TO THE LATEST URGENT WINTER WEATHER MESSAGE FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. MIZ053-060>063-068>070-075-076-082-083-110930- SAGINAW-SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND- MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 346 PM EST SAT DEC 10 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT A WINTER STORM WEATHER ADVISORY FOR SNOW IS IN EFFECT LATE TONIGHT. PLEASE REFER TO THE LATEST URGENT WINTER WEATHER MESSAGE FOR DETAILS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A WINTER STORM WEATHER ADVISORY FOR SNOW IS IN EFFECT SUNDAY AND SUNDAY NIGHT. PLEASE REFER TO THE LATEST URGENT WINTER WEATHER MESSAGE FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-110930- LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT BEYOND 5 NM OFF SHORE- LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE- LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE- OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI- PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE- LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE- LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE- 346 PM EST SAT DEC 10 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .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 TODAY AND TONIGHT. YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW,WEATHER.GOV/DETROIT. SF
In the hours before
Special weather statement, Dec 11, 2:23 AM EST, 1 hour 36 minutes before
Special Weather Statement National Weather Service Detroit/Pontiac MI 223 AM EST Sun Dec 11 2016 MIZ047-048-053-060-061-068>070-075-076-082-083-110900- Midland-Bay-Saginaw-Shiawassee-Genesee-Livingston-Oakland-Macomb- Washtenaw-Wayne-Lenawee-Monroe- Including the cities of...Midland...Bay City...Saginaw...Owosso... Flint...Howell...Pontiac...Warren...Ann Arbor...Detroit... Adrian...Monroe 223 AM EST Sun Dec 11 2016 ...Light has begun to spread into Southeast Michigan... Light snow falling across the area early this morning will allow slick spots to develop on area roadways. Up to one inch of accumulation is expected before sunrise. Motorists should anticipate slippery spots on roadways and visibilities reduced to around one-mile at times through the early morning. MIZ049-054-055-062-063-110900- Huron-Tuscola-Sanilac-Lapeer-St. Clair- Including the cities of...Bad Axe...Caro...Sandusky...Lapeer... Port Huron 223 AM EST Sun Dec 11 2016 ...Light snow will spread into the Thumb early this morning... Light snow will spread into the area between 200 AM and 400 AM, with slick spots developing on area roadways as snow starts to accumulate. Up to one-half inch of accumulation is expected before sunrise. Motorists should anticipate slippery spots on roadways and visibilities reduced to around one-mile at times through the early morning. HLO
Nearby
Winter Storm Warnings in Michigan, 2016Every winter storm warning in 2016
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.