Alert archive / Michigan / Winter Storm Warnings in 2007
Winter Storm Warning 9, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this winter storm warning at Dec 15, 2007, 4:20 AM EST for 19 counties in Michigan. It took effect at Dec 15, 2007, 2:27 PM EST. It was in force for 28 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 15, 2007, 4:20 AM EST (09:20 UTC)
- In effect from
- Dec 15, 2007, 2:27 PM EST
- Expired
- Dec 16, 2007, 6:17 PM EST
- In force
- 28 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 24 km from the middle of the area, began a volume at 09:25 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 15, 5:05 PM EST | SNOW 1 | Portage, MI | REPORTED SEVERAL SLIDOFFS ON U.S. 131 SOUTH OF INTERSTATE 94. |
| Dec 15, 9:15 PM EST | SNOW 1.5 | Vandercook Lake, MI | |
| Dec 15, 10:00 PM EST | SNOW 1.5 | Grandville, MI | SNOW DEPTH 3 INCHES |
| Dec 15, 10:05 PM EST | SNOW 1.5 | 3 E Grand Junction, MI | SNOW DEPTH 2.5 INCHES |
| Dec 15, 10:30 PM EST | SNOW 1.5 | 5 Nw Jackson, MI | SNOW DEPTH 1.5 INCHES |
| Dec 15, 10:54 PM EST | SNOW 0.8 | Lansing, MI | |
| Dec 15, 10:54 PM EST | SNOW 1.5 | Kalamazoo, MI | |
| Dec 15, 11:40 PM EST | SNOW 2.5 | Schoolcraft, MI | LIGHT TO MODERATE SNOW ONGOING |
| Dec 16, 12:05 AM EST | SNOW 2 | Plainwell, MI | |
| Dec 16, 12:35 AM EST | SNOW 1.6 | Ionia, MI | |
| Dec 16, 12:35 AM EST | SNOW 2.5 | Paw Paw, MI | |
| Dec 16, 1:00 AM EST | HEAVY SNOW 3 | Norton Shores, MI | MEASURED 2.6 INCHES IN THE LAST TWO HOURS |
| Dec 16, 1:30 AM EST | SNOW 2.3 | Byron Center, MI | |
| Dec 16, 2:30 AM EST | SNOW 1.9 | Lansing, MI | |
| Dec 16, 2:56 AM EST | HEAVY SNOW 1.4 | 4 Se Grand Rapids, MI | MEASURED 1.4 IN THE LAST HOUR. 5 INCHES ON THE GROUND. |
| Dec 16, 3:30 AM EST | SNOW 5 | Byron Center, MI | |
| Dec 16, 4:45 AM EST | SNOW 5 | Kentwood, MI | OVERNIGHT |
| Dec 16, 4:50 AM EST | SNOW 5 | Grand Haven, MI | |
| Dec 16, 4:55 AM EST | SNOW 5.1 | Breckenridge, MI | MODERATE TO HEAVY SNOW ONGOING |
| Dec 16, 5:10 AM EST | SNOW 4.5 | 4 W Belding, MI | SINCE SNOW BEGAN. |
| Dec 16, 5:40 AM EST | SNOW 5.5 | Ada, MI | OVERNIGHT. |
| Dec 16, 5:49 AM EST | SNOW 5 | Hastings, MI | 6 ON THE GROUND...5 OVERNIGHT. |
| Dec 16, 5:54 AM EST | SNOW 7 | Stanton, MI | |
| Dec 16, 5:55 AM EST | SNOW 8 | Howard City, MI | |
| Dec 16, 6:05 AM EST | SNOW 4.2 | Kalamazoo, MI | DRIFTS TO ONE FOOT. DOWNTOWN AT WWMT. |
| Dec 16, 6:13 AM EST | SNOW 4.5 | Oshtemo, MI | SINCE STORM BEGAN. OSHTEMO TWP. |
| Dec 16, 6:22 AM EST | SNOW 7 | Harrison, MI | OVERNIGHT. |
| Dec 16, 6:40 AM EST | SNOW 6 | Newaygo, MI | |
| Dec 16, 6:47 AM EST | SNOW 4.5 | De Witt, MI | SINCE STORM BEGAN |
| Dec 16, 6:47 AM EST | SNOW 5.8 | Kentwood, MI | AT WFO GRR. 6 ON GROUND. SINCE 1400 LOCAL SATURDAY. |
| Dec 16, 6:50 AM EST | SNOW 4 | Lansing, MI | |
| Dec 16, 6:50 AM EST | SNOW 4.8 | Byron Center, MI | |
| Dec 16, 6:55 AM EST | SNOW 4.5 | Okemos, MI | STORM TOTAL |
| Dec 16, 7:00 AM EST | SNOW 4 | Fremont, MI | 24 HOUR TOTAL |
| Dec 16, 7:00 AM EST | SNOW 5.6 | Muskegon, MI | |
| Dec 16, 7:00 AM EST | SNOW 6 | 6 E White Cloud, MI | 24 HOUR TOTAL. |
| Dec 16, 7:00 AM EST | SNOW 6 | Hastings, MI | 24 HOUR TOTAL. |
| Dec 16, 7:00 AM EST | SNOW 6.8 | Breckenridge, MI | DEPTH 8.5 |
| Dec 16, 7:00 AM EST | SNOW 8 | Grand Haven, MI | |
| Dec 16, 7:21 AM EST | SNOW 7 | Leoni, MI | |
| Dec 16, 7:21 AM EST | SNOW 10 | Bloomingdale, MI | |
| Dec 16, 7:33 AM EST | SNOW 6.5 | Muskegon, MI | 8 INCHES ON GND. |
| Dec 16, 7:38 AM EST | SNOW 5.8 | Jackson, MI | |
| Dec 16, 7:57 AM EST | SNOW 5 | Walker, MI | |
| Dec 16, 7:57 AM EST | SNOW 8.5 | Brooklyn, MI | STORM TOTAL. |
| Dec 16, 8:00 AM EST | SNOW 6.5 | Alma, MI | 24 HOUR TOTAL. |
| Dec 16, 8:03 AM EST | SNOW 5.3 | Sparta, MI | 6.0 INCHES ON GROUND |
| Dec 16, 8:08 AM EST | SNOW 6 | 2 Ne Lansing, MI | |
| Dec 16, 8:10 AM EST | SNOW 7 | Mount Pleasant, MI | STORM TOTAL |
| Dec 16, 8:11 AM EST | SNOW 6.8 | 2 Ene Eagle, MI | 24 HOUR TOTAL |
| Dec 16, 8:12 AM EST | SNOW 5 | Big Rapids, MI | 13 INCHES ON THE GROUND. |
| Dec 16, 8:21 AM EST | SNOW 5.5 | Dorr, MI | |
| Dec 16, 8:34 AM EST | SNOW 8 | South Haven, MI | |
| Dec 16, 8:37 AM EST | SNOW 7.5 | Marshall, MI | |
| Dec 16, 8:40 AM EST | SNOW 6.7 | Dimondale, MI | |
| Dec 16, 8:41 AM EST | SNOW 6 | Kalamazoo, MI | |
| Dec 16, 8:43 AM EST | SNOW 5.8 | 2 Sse Ionia, MI | 24 HOUR TOTAL |
| Dec 16, 8:43 AM EST | SNOW 8 | 1 E Tekonsha, MI | |
| Dec 16, 8:48 AM EST | SNOW 6.3 | Norton Shores, MI | |
| Dec 16, 9:07 AM EST | SNOW 6.5 | Dorr, MI |
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, 9.3 hours before the alert went out and 151 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
- 846 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KGRR 150920 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 420 AM EST SAT DEC 15 2007 ...POTENTIAL WINTER STORM FOR PARTS OF THE AREA THIS WEEKEND... .A STORM DEVELOPING IN TEXAS WILL INTENSIFY AS IT TRACKS UP THE OHIO VALLEY LATE TONIGHT AND SUNDAY. LIGHT SNOW IS EXPECTED TO OVERSPREAD MUCH OF SOUTHERN LOWER MICHIGAN THIS AFTERNOON INTO THE EVENING. THEN SNOW SHOULD BECOME HEAVY ACROSS PORTIONS OF SOUTHERN LOWER MICHIGAN PRIOR TO MIDNIGHT. AS THE STORM PULLS AWAY SUNDAY AFTERNOON...STRONG GUSTY WINDS COULD CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW. MIZ067-073-074-151730- /O.UPG.KGRR.WS.A.0009.071216T0600Z-071216T1800Z/ /O.NEW.KGRR.WS.W.0009.071216T0300Z-071217T0000Z/ INGHAM-CALHOUN-JACKSON- INCLUDING THE CITIES OF...LANSING...BATTLE CREEK...JACKSON 420 AM EST SAT DEC 15 2007 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS EXPECTED TONIGHT INTO SUNDAY. ACCUMULATIONS OF 6 TO 12 INCHES OF SNOW IS LIKELY THROUGH SUNDAY. BY SUNDAY...NORTH WINDS GUSTING 30 TO 40 MPH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ051-052-056>059-064>066-071-072-151730- /O.NEW.KGRR.WS.A.0010.071216T0300Z-071217T0000Z/ MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- VAN BUREN-KALAMAZOO- INCLUDING THE CITIES OF...GREENVILLE...ALMA...JENISON... GRAND RAPIDS...IONIA...ST. JOHNS...HOLLAND...HASTINGS... CHARLOTTE...SOUTH HAVEN...KALAMAZOO 420 AM EST SAT DEC 15 2007 ...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS POSSIBLE TONIGHT INTO SUNDAY. ACCUMULATIONS OF 6 INCHES OR MORE OF SNOW IS POSSIBLE THROUGH SUNDAY. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ JK
7 follow-up statements
000 WWUS43 KGRR 151547 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1047 AM EST SAT DEC 15 2007 ...MAJOR WINTER STORM FOR PARTS OF THE AREA THIS WEEKEND... .A STORM DEVELOPING IN EASTERN TEXAS WILL INTENSIFY AS IT TRACKS UP THE LOWER OHIO VALLEY LATE TONIGHT TO NEAR TOLEDO ON SUNDAY. LIGHT SNOW IS EXPECTED TO OVERSPREAD MUCH OF SOUTHERN LOWER MICHIGAN THIS AFTERNOON INTO THE EVENING. THE SNOW SHOULD BECOME HEAVY ACROSS PORTIONS OF SOUTHERN LOWER MICHIGAN PRIOR TO MIDNIGHT. AS THE STORM PULLS AWAY SUNDAY AFTERNOON...STRONG GUSTY WINDS COULD CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW. NEAR BLIZZARD CONDITIONS ARE EXPECTED ON SUNDAY. MIZ051-052-056>059-064>066-071-072-160000- /O.UPG.KGRR.WS.A.0010.071216T0300Z-071217T0000Z/ /O.EXA.KGRR.WS.W.0009.071216T0300Z-071217T0000Z/ MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- VAN BUREN-KALAMAZOO- INCLUDING THE CITIES OF...GREENVILLE...ALMA...JENISON... GRAND RAPIDS...IONIA...ST. JOHNS...HOLLAND...HASTINGS... CHARLOTTE...SOUTH HAVEN...KALAMAZOO 1047 AM EST SAT DEC 15 2007 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS EXPECTED TONIGHT INTO SUNDAY. ACCUMULATIONS OF A FOOT OR MORE OF SNOW ARE POSSIBLE THROUGH SUNDAY. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ040-044>046-050-160000- /O.EXA.KGRR.WS.W.0009.071216T0300Z-071217T0000Z/ CLARE-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- INCLUDING THE CITIES OF...CLARE...FREMONT...BIG RAPIDS... MOUNT PLEASANT...MUSKEGON 1047 AM EST SAT DEC 15 2007 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS EXPECTED TONIGHT INTO SUNDAY. ACCUMULATIONS OF A FOOT OR MORE OF SNOW ARE POSSIBLE THROUGH SUNDAY. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ067-073-074-160000- /O.CON.KGRR.WS.W.0009.071216T0300Z-071217T0000Z/ INGHAM-CALHOUN-JACKSON- INCLUDING THE CITIES OF...LANSING...BATTLE CREEK...JACKSON 1047 AM EST SAT DEC 15 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST SUNDAY. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS EXPECTED TONIGHT INTO SUNDAY. ACCUMULATIONS OF A FOOT OR MORE OF SNOW ARE POSSIBLE THROUGH SUNDAY. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ037>039-043-160000- /O.NEW.KGRR.WS.A.0011.071216T0300Z-071217T0000Z/ MASON-LAKE-OSCEOLA-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...BALDWIN...REED CITY...HART 1047 AM EST SAT DEC 15 2007 ...WINTER STORM WATCH IN EFFECT FROM 10 PM EST THIS EVENING THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM 10 PM EST THIS EVENING THROUGH SUNDAY EVENING. LIGHT SNOW WILL BEGIN TO FALL THIS AFTERNOON...HOWEVER A PERIOD OF HEAVIER SNOW IS POSSIBLE TONIGHT INTO SUNDAY. ACCUMULATIONS OF 6 INCHES OR MORE OF SNOW IS POSSIBLE THROUGH SUNDAY. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$
000 WWUS43 KGRR 151927 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 227 PM EST SAT DEC 15 2007 ...MAJOR WINTER STORM FOR PARTS OF THE AREA THIS WEEKEND... .A STORM DEVELOPING IN THE LOWER MISSISSIPPI VALLEY WILL INTENSIFY AS IT TRACKS UP THE LOWER OHIO VALLEY LATE TONIGHT TO NEAR TOLEDO ON SUNDAY. THIS STORM WILL PRODUCE WIDESPREAD HEAVY SNOW ACROSS SOUTHEAST PORTIONS OF THE GREAT LAKES REGION. NEAR BLIZZARD CONDITIONS ARE POSSIBLE...ESPECIALLY ON SUNDAY. MIZ040-044>046-050>052-056>059-064>067-071>074-160330- /O.EXT.KGRR.WS.W.0009.071215T1927Z-071217T0000Z/ CLARE-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT-OTTAWA- KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN-KALAMAZOO- CALHOUN-JACKSON- INCLUDING THE CITIES OF...CLARE...FREMONT...BIG RAPIDS... MOUNT PLEASANT...MUSKEGON...GREENVILLE...ALMA...JENISON... GRAND RAPIDS...IONIA...ST. JOHNS...HOLLAND...HASTINGS... CHARLOTTE...LANSING...SOUTH HAVEN...KALAMAZOO...BATTLE CREEK... JACKSON 227 PM EST SAT DEC 15 2007 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 PM EST SUNDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 7 PM EST SUNDAY. OCCASIONAL SNOW WILL BECOME STEADIER AND HEAVIER THIS EVENING. HEAVY SNOW WILL PERSIST OVERNIGHT INTO SUNDAY MORNING. THE SNOW WILL TAPER OF SUNDAY AFTERNOON. MANY LOCATIONS SHOULD SEE 8 TO 12 INCHES OF SNOW WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. BY SUNDAY... NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ037>039-043-160330- /O.UPG.KGRR.WS.A.0011.071216T0300Z-071217T0000Z/ /O.NEW.KGRR.SB.Y.0005.071215T1927Z-071217T0000Z/ MASON-LAKE-OSCEOLA-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...BALDWIN...REED CITY...HART 227 PM EST SAT DEC 15 2007 ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL 7 PM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. OCCASIONAL SNOW WILL CONTINUE THROUGH SUNDAY MORNING. THE SNOW WILL TAPER OF SUNDAY AFTERNOON. MANY LOCATIONS SHOULD SEE 4 TO 8 INCHES OF SNOW WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. BY SUNDAY... NORTH WINDS GUSTING 25 TO 35 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. STAY TUNED TO THE LATEST FORECASTS. $$
000 WWUS43 KGRR 160318 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1018 PM EST SAT DEC 15 2007 ...MAJOR WINTER STORM FOR PARTS OF THE AREA THIS WEEKEND... .A STORM DEVELOPING IN THE LOWER MISSISSIPPI VALLEY WILL INTENSIFY AS IT TRACKS UP THE LOWER OHIO VALLEY LATE TONIGHT TO NEAR TOLEDO ON SUNDAY. THIS STORM WILL PRODUCE WIDESPREAD HEAVY SNOW ACROSS SOUTHEAST PORTIONS OF THE GREAT LAKES REGION. NEAR BLIZZARD CONDITIONS ARE POSSIBLE...ESPECIALLY ON SUNDAY. MIZ040-044>046-050>052-056>059-064>067-071>074-161130- /O.CON.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ CLARE-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT-OTTAWA- KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN-KALAMAZOO- CALHOUN-JACKSON- INCLUDING THE CITIES OF...CLARE...FREMONT...BIG RAPIDS... MOUNT PLEASANT...MUSKEGON...GREENVILLE...ALMA...JENISON... GRAND RAPIDS...IONIA...ST. JOHNS...HOLLAND...HASTINGS... CHARLOTTE...LANSING...SOUTH HAVEN...KALAMAZOO...BATTLE CREEK... JACKSON 1018 PM EST SAT DEC 15 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY. OCCASIONAL SNOW WILL BECOME HEAVIER AFTER MIDNIGHT. HEAVY SNOW WILL PERSIST OVERNIGHT INTO EARLY SUNDAY MORNING. THE SNOW WILL TAPER OF SUNDAY AFTERNOON. MANY LOCATIONS SHOULD SEE 8 TO 12 INCHES OF SNOW WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. BY SUNDAY...NORTH WINDS GUSTING 30 TO 40 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ037>039-043-161130- /O.CON.KGRR.SB.Y.0005.000000T0000Z-071217T0000Z/ MASON-LAKE-OSCEOLA-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...BALDWIN...REED CITY...HART 1018 PM EST SAT DEC 15 2007 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY. OCCASIONAL SNOW WILL CONTINUE THROUGH SUNDAY MORNING. THE SNOW WILL TAPER OF SUNDAY AFTERNOON. 3 TO 7 INCHES OF SNOW CAN BE EXPECTED BY LATE SUNDAY AFTERNOON. BY SUNDAY... NORTH WINDS GUSTING 25 TO 35 MPH MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. STAY TUNED TO THE LATEST FORECASTS. $$ JK
000 WWUS43 KGRR 160912 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 412 AM EST SUN DEC 16 2007 ...MAJOR WINTER STORM FOR PARTS OF THE AREA CONTINUES... .A STORM SYSTEM OVER OHIO WILL CONTINUE TO PRODUCE WIDESPREAD HEAVY SNOW ACROSS LOWER MICHIGAN TODAY. NEAR BLIZZARD CONDITIONS ARE POSSIBLE TODAY AS NORTHWEST WINDS INCREASE TO 30 TO 35 MPH. THIS WILL CAUSE CONSIDERABLE BLOWING SNOW THAT WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. THE SNOW AND WIND WILL DIMINISH INTO THE EVENING AS THE STORM SYSTEM DEPARTS. MIZ040-044>046-050>052-056>059-064>067-071>074-161715- /O.CON.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ CLARE-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT-OTTAWA- KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN-KALAMAZOO- CALHOUN-JACKSON- INCLUDING THE CITIES OF...CLARE...FREMONT...BIG RAPIDS... MOUNT PLEASANT...MUSKEGON...GREENVILLE...ALMA...JENISON... GRAND RAPIDS...IONIA...ST. JOHNS...HOLLAND...HASTINGS... CHARLOTTE...LANSING...SOUTH HAVEN...KALAMAZOO...BATTLE CREEK... JACKSON 412 AM EST SUN DEC 16 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. SNOW WILL PERSIST THROUGH MID DAY AND THEN GRADUALLY TAPER OFF FROM WEST TO EAST TOWARD EVENING. ADDITIONAL SNOW ACCUMULATIONS OF 4 TO 6 INCHES WILL BE POSSIBLE...GIVING SOME LOCALES IN EXCESS OF A FOOT OF SNOW ACCUMULATION. NORTHWEST WINDS WILL GUST TO AS HIGH AS 35 MPH...CAUSING CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW WITH NEAR BLIZZARD CONDITIONS POSSIBLE. VISIBILITIES COULD BE REDUCED TO NEAR ZERO AT TIMES. THE WIND WILL DIMINISH THROUGH THE EVENING HOURS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ037>039-043-161715- /O.CON.KGRR.SB.Y.0005.000000T0000Z-071217T0000Z/ MASON-LAKE-OSCEOLA-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...BALDWIN...REED CITY...HART 412 AM EST SUN DEC 16 2007 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. OCCASIONAL SNOW WILL CONTINUE THIS MORNING. THE SNOW WILL TAPER OFF INTO THE AFTERNOON. AN ADDITIONAL 1 TO 3 INCHES OF SNOW CAN BE EXPECTED BY LATE AFTERNOON. NORTHWEST WINDS WILL GUST AS HIGH AS 35 MPH...CAUSING CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW. THE WIND WILL DIMINISH THROUGH THE EVENING HOURS. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. STAY TUNED TO THE LATEST FORECASTS. $$ JK
000 WWUS43 KGRR 161624 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1124 AM EST SUN DEC 16 2007 ...MAJOR WINTER STORM STILL IMPACTING PARTS OF THE AREA... .A STORM SYSTEM OVER NORTHEAST OHIO WILL TRACK AWAY FROM THE REGION THIS AFTERNOON. WHILE THE SNOW WILL BE TAPERING OFF...GUSTY WINDS WILL LEAD TO BLOWING AND DRIFTING OF THE SNOW THROUGH THE AFTERNOON...MAINLY FOR SOUTHERN LOWER MICHIGAN. MIZ040-044>046-050-051-056-057-161730- /O.CAN.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ CLARE-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-OTTAWA-KENT- INCLUDING THE CITIES OF...CLARE...FREMONT...BIG RAPIDS... MOUNT PLEASANT...MUSKEGON...GREENVILLE...JENISON...GRAND RAPIDS 1124 AM EST SUN DEC 16 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE WINTER STORM WARNING. ANY ADDITIONAL ACCUMULATION SHOULD REMAIN UNDER AN INCH. VERY STRONG WIND GUSTS ARE NO LONGER FORECASTED...WHICH WILL LIMIT THE BLOWING SNOW POTENTIAL. $$ MIZ037-043-170030- /O.CAN.KGRR.SB.Y.0005.000000T0000Z-071217T0000Z/ /O.NEW.KGRR.LE.Y.0015.071216T1624Z-071217T0400Z/ MASON-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...HART 1124 AM EST SUN DEC 16 2007 ...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 11 PM EST THIS EVENING... ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A LAKE EFFECT SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 PM EST THIS EVENING. THE SNOW AND BLOWING SNOW ADVISORY HAS BEEN CANCELLED. THE LAKE EFFECT SNOW WILL DEVELOP THIS AFTERNOON AND PERSIST INTO THE EVENING. AN ADDITIONAL 2 TO 4 INCHES OF SNOW CAN BE EXPECTED BY MIDNIGHT. A LAKE EFFECT SNOW ADVISORY MEANS LAKE EFFECT SNOW IS FORECAST THAT WILL MAKE TRAVEL DIFFICULT IN SOME AREAS. LAKE EFFECT SNOW SHOWERS TYPICALLY ALIGN THEMSELVES IN BANDS AND WILL LIKELY BE INTENSE ENOUGH TO DROP SEVERAL INCHES IN LOCALIZED AREAS. USE CAUTION WHEN TRAVELING. $$ MIZ038-039-161730- /O.CAN.KGRR.SB.Y.0005.000000T0000Z-071217T0000Z/ LAKE-OSCEOLA- INCLUDING THE CITIES OF...BALDWIN...REED CITY 1124 AM EST SUN DEC 16 2007 ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE SNOW AND BLOWING SNOW ADVISORY. ANY ADDITIONAL ACCUMULATION SHOULD REMAIN UNDER AN INCH. VERY STRONG WIND GUSTS ARE NO LONGER FORECASTED...WHICH WILL LIMIT THE BLOWING SNOW POTENTIAL. $$ MIZ052-058-059-064>067-071>074-170000- /O.CON.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ GRATIOT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN- KALAMAZOO-CALHOUN-JACKSON- INCLUDING THE CITIES OF...ALMA...IONIA...ST. JOHNS...HOLLAND... HASTINGS...CHARLOTTE...LANSING...SOUTH HAVEN...KALAMAZOO... BATTLE CREEK...JACKSON 1124 AM EST SUN DEC 16 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. THE STEADY SNOW WILL TAPER OFF THROUGH THE AFTERNOON. LAKE EFFECT SNOW BANDS WILL START TO MOVE INTO VAN BUREN AND ALLEGAN COUNTIES. ADDITIONAL ACCUMULATIONS WILL REMAIN UNDER 3 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE NEAR THE LAKESHORE. SOME WIND GUSTS TO 30 MPH WILL LEAD TO CONSIDERABLE BLOW AND DRIFTING OF THE SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS43 KGRR 162051 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 351 PM EST SUN DEC 16 2007 ...THE WINTER STORM IS PULLING AWAY FROM THE REGION... .A STORM SYSTEM OVER WESTERN NEW YORK WILL TRACK AWAY FROM THE REGION TONIGHT. THE WIND GUSTS AND ANY REMAINING SNOW WILL DIMINISH THROUGH THE LATE AFTERNOON AND EVENING. MIZ052-058-059-065>067-072>074-162200- /O.CAN.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ GRATIOT-IONIA-CLINTON-BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN- JACKSON- INCLUDING THE CITIES OF...ALMA...IONIA...ST. JOHNS...HASTINGS... CHARLOTTE...LANSING...KALAMAZOO...BATTLE CREEK...JACKSON 351 PM EST SUN DEC 16 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE WINTER STORM WARNING. THE WIDESPREAD AREAS OF ACCUMULATING SNOW AND REDUCED VISIBILITY HAVE MOVED AWAY FROM THE REGION. THUS THE WARNING HAS BEEN CANCELLED. $$ MIZ064-071-170000- /O.CON.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ ALLEGAN-VAN BUREN- INCLUDING THE CITIES OF...HOLLAND...SOUTH HAVEN 351 PM EST SUN DEC 16 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. LAKE EFFECT SNOW BANDS WILL GRADUALLY DIMINISH AS THEY MOVE INTO VAN BUREN AND ALLEGAN COUNTIES THROUGH LATE AFTERNOON. ADDITIONAL ACCUMULATIONS WILL REMAIN UNDER 2 INCHES. SOME WIND GUSTS TO 30 MPH WILL LEAD TO CONSIDERABLE BLOW AND DRIFTING OF THE SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MIZ037-043-170400- /O.CON.KGRR.LE.Y.0015.000000T0000Z-071217T0400Z/ MASON-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...HART 351 PM EST SUN DEC 16 2007 ...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING... A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING. THE LAKE EFFECT SNOW WILL GRADUALLY DIMINISH THROUGH THE EVENING. AN ADDITIONAL 1 TO 3 INCHES OF SNOW CAN BE EXPECTED BY MIDNIGHT. A LAKE EFFECT SNOW ADVISORY MEANS LAKE EFFECT SNOW IS FORECAST THAT WILL MAKE TRAVEL DIFFICULT IN SOME AREAS. LAKE EFFECT SNOW SHOWERS TYPICALLY ALIGN THEMSELVES IN BANDS AND WILL LIKELY BE INTENSE ENOUGH TO DROP SEVERAL INCHES IN LOCALIZED AREAS. USE CAUTION WHEN TRAVELING. $$
000 WWUS43 KGRR 162317 WSWGRR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 617 PM EST SUN DEC 16 2007 MIZ064-071-170030- /O.CAN.KGRR.WS.W.0009.000000T0000Z-071217T0000Z/ ALLEGAN-VAN BUREN- INCLUDING THE CITIES OF...HOLLAND...SOUTH HAVEN 617 PM EST SUN DEC 16 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE WINTER STORM WARNING. $$ MIZ037-043-170030- /O.CAN.KGRR.LE.Y.0015.000000T0000Z-071217T0400Z/ MASON-OCEANA- INCLUDING THE CITIES OF...LUDINGTON...HART 617 PM EST SUN DEC 16 2007 ...LAKE EFFECT SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE LAKE EFFECT SNOW ADVISORY. $$
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 Grand Rapids, MI wrote its last area forecast discussion before this winter storm warning went out at Dec 15, 12:15 AM EST, 4 hours 5 minutes earlier.
Area forecast discussion, Dec 15, 12:15 AM EST, 4 hours 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1215 AM EST SAT DEC 15 2007
LATEST UPDATE...AVIATION...
.SYNOPSIS...(330 PM EST FRI DEC 14 2007)
A RATHER COLD NIGHT IS IN STORE FOR THE REGION AS AN ARCTIC
HIGH PRESSURE SYSTEM DRIFTS EASTWARD ACROSS THE GREAT LAKES
REGION. LOW PRESSURE ORGANIZING DOWN IN TEXAS WILL INTENSIFY AS IT
TRACKS UP THE OHIO RIVER VALLEY ON SUNDAY. THIS SYSTEM COULD BRING
SOME HEAVY SNOW TO PORTIONS OF SOUTH CENTRAL AND SOUTHEAST LOWER
MICHIGAN SATURDAY NIGHT INTO SUNDAY.
&&
.SHORT TERM...(947 PM EST FRI DEC 14 2007)
WILL MAINTAIN THE CURRENT HEADLINES. 00Z RUNS JUST COMING IN...BUT
THEY GO ALONG WITH THE THINKING OF THE DAY SHIFT. WE WILL SEE THE
SNOW BEGIN TO INCREASE TOMORROW AFTERNOON...SO WILL ADJUST THE POPS
AND ACCUMS FOR THIS PERIOD ACROSS THE SOUTHERN CWA. STILL ONLY
EXPECTING AN INCH OR TWO ACROSS THE SOUTH BY EVENING. THE MOISTURE
AND DGZ BECOMES MARGINALLY SATURATED DURING THE LATE AFTERNOON WHICH
SHOULD KEEP ACCUMS IN CHECK. THIS HOWEVER IS NOT THE MAIN SHOW. AS
THE DISCUSSION SAYS BELOW...FROM THE DAY SHIFT...THE DEFORMATION
ZONE THAT MOVES OVERHEAD SATURDAY NIGHT WILL PUT DOWN THE STEADIEST
SNOWS AND WHEN THE HEADLINES GO INTO EFFECT. BASED ON THE MODELS
CONTINUING TO SHOW A MORE NW TRACK WE MAY NEED TO ADJUST THE WATCH A
BIT FURTHER NW FOR SATURDAY NIGHT. BUT WITHOUT ALL THE 00Z DATA IN
AS OF YET...NOT COMFORTABLE DOING THIS AT THIS POINT.
PREVIOUS DISCUSSION...
THE MAIN CHALLENGE OVER THE SHORT TERM DEALS WITH THE POTENTIAL
WINTER STORM FOR THIS WEEKEND. THE TRENDS SUPPORT A CLOSER APPROACH
OF THIS STORM TO LOWER MICHIGAN AS WELL AS A DEEPER STORM. THE GFS
STILL PRODUCES UNDER WARNING CRITERIA FOR SNOW THROUGHOUT MY
FORECAST AREA. THE NAM ALLOWS FOR WARNING CRITERIA SNOW AROUND
JXN. BOTH MODELS DO SHOW DECENT FGEN ALONG WITH WEAKNESS IN THE
STABILITY. A TROWAL SIGNATURE SHOWS UP AS WELL. GIVEN THE
RELATIVELY COLD AIRMASS IN PLACE...SNOW RATIOS ALSO SUPPORT MORE
SNOW. A DRY SLOT WAS NOTED ESPECIALLY IN THE NAM AROUND 00Z SUN.
BY 06Z THE MOISTURE WAS PLENTY DEEP ALONG WITH FAVORABLE LIFT TO
SUPPORT SOME HEAVIER SNOW. WINDS WILL BE ON THE INCREASE SUNDAY
AFTERNOON...THUS CONSIDERABLE BLOWING AND DRIFTING OF ANY SNOW WILL
BE POSSIBLE. SO WILL ISSUE A WINTER STORM WATCH FOR PARTS OF THE
AREA 06Z SUN TO 18Z SUN. A COUPLE OF THINGS TO MONITOR AS THIS
STORM EVOLVES. IF THIS DRY SLOT DOES NOT MATERIALIZE THEN THE
ACCUMULATING SNOW COULD OCCUR PRIOR TO 00Z SUN. ALSO WITH THE
POSSIBILITY OF HEAVIER CONVECTION IN THE LOWER OH VALLEY AND LOWER
TO MIDDLE MS VALLEY...SOME NORTHWARD GULF MOISTURE TRANSPORT COULD
BE INTERCEPTED.
OTHER ISSUES WITH THE FORECAST INCLUDE TEMPERATURES TONIGHT. WITH
THE DECENT SNOWPACK UP NORTH...ARCTIC AIR FILTERING IN FROM THE
NORTH AND CLEARING SKIES...SUSPECT RATHER COLD VALUES WILL BE SEEN
NORTH OF INTERSTATE 96. WE COULD EASILY SEE WELL BELOW ZERO VALUES
NEAR HARRISON TO LEOTA.
&&
.LONG TERM...(330 PM EST FRI DEC 14 2007)
MAIN UPPER SYSTEM RESPONSIBLE FOR THE WINTER STORM THIS WEEKEND WILL
BE HEADING OUT OVER THE NORTH ATLANTIC AS THE LONG TERM PERIOD
BEGINS ON SUN NIGHT. UPPER FLOW IS EXPECTED TO TRANSITION TO THAT OF
A MORE ZONAL FLOW ACROSS THE COUNTRY FOR THE FIRST HALF OF THE WEEK.
SOME RESIDUAL COLD AIR /H850 TEMPS -6C TO -10C/ AND A UPPER SHORT
WAVE TROUGH MOVING THROUGH SUN NIGHT AND MON WILL PROVIDE FOR A FEW
SNOW SHOWERS OVER THE WRN HALF OF THE CWFA. LACK OF DEEP MOISTURE
AND RIDGING AT THE SFC WILL KEEP ACCUMULATIONS LIMITED DURING THIS
TIME PERIOD.
THE ZONAL FLOW WILL ALLOW FOR SHORT WAVES EMBEDDED IN THE FLOW TO
MOVE THROUGH THE REGION ON OCCASION. THE ONLY ONE THE MODELS SEEM TO
PICK UP ON IS A WAVE MOVING NORTH OF THE AREA TUE NIGHT AND WED.
MOISTURE WILL BE QUITE LIMITED AS THIS MOVES THROUGH AND A MAJORITY
OF THE ENERGY WILL REMAIN NORTH. WE HAVE OPTED TO LOWER POPS DOWN TO
FLURRIES FOR THE TUE NIGHT PERIOD AND DRY FOR WED.
THE MAIN WEATHER MAKER IN THE LONG TERM WILL BE JET ENERGY THAT DIGS
A DECENT TROUGH OVER THE CENTRAL PORTION OF THE COUNTRY. THE MAIN
PORTION OF THIS SYSTEM IS EXPECTED TO REMAIN WELL SOUTH OF THE
AREA...BUT ALL MODELS ARE SHOWING SIGNS OF AN INVERTED TROUGH UP
THROUGH THE GREAT LAKES REGION. WE HAVE ADDED PCPN TO THE THU
THROUGH FRI TIME FRAME WITH THIS IN MIND. FCST SOUNDINGS SHOW THAT
THE AIR WILL BE RATHER MILD OVER THE AREA FOR NOW...AND WOULD
SUPPORT RAIN OR SNOW.
&&
.AVIATION...(1215 AM EST SAT DEC 15 2007)
LOWER CEILINGS WILL CREEP BACK INTO THE TAF SITES THROUGH THE COURSE
OF THE OVERNIGHT AS WINDS BEGIN TO TURN MORE TO THE SOUTHEAST ALOFT.
2000-3000 FT CEILING POISED OFF TO THE SOUTH WILL BE PULLED BACK
NORTH BY DAYBREAK. LIGHT SNOW SPREADING NORTHEAST TOWARD THE GREAT
LAKES FROM THE PLAINS WILL SPREAD IN DURING THE MORNING HOURS...WITH
CEILINGS DROPPING INTO THE 1000-2000 FT RANGE IN THE AFTERNOON.
VSBY/S WILL BE LOWER AT THE SOUTHERN TAF SITES AZO/JXN/BTL.
CONDITIONS WILL TREND WORSE INTO SATURDAY NIGHT AS HEAVY SNOW IS
EXPECTED TO DEVELOP ACROSS THE AREA. LATEST MODEL GUIDANCE SHOWS
ACCUMULATING SNOWS AT ALL TAF SITES SATURDAY NIGHT...WITH THE
HEAVIEST BEING FROM GRR SOUTH AND EAST.
&&
.MARINE...(330 PM EST FRI DEC 14 2007)
SCA CRITERIA WAVES TO CONTINUE THROUGH THE EARLY
EVENING HOURS BEFORE GRADUALLY SUBSIDING OVERNIGHT. SCA HEADLINE
LOOKED EXCELLENT AND REMAINED UNCHANGED... EXPIRING AT 00Z TONIGHT.
MAY NEED GALES FOR SUNDAY.
&&
.HYDROLOGY...(330 PM EST FRI DEC 14 2007)
NO HYDRO ISSUES ANTICIPATED THROUGH THE WEEKEND. NO RISE IN RIVER
AND TRIBUTARY LEVELS WILL OCCUR THIS WEEKEND GIVEN AIR TEMPS IN THE
MID TO UPPER 20S.
&&
.GRR WATCHES/WARNINGS/ADVISORIES...
MI...WINTER STORM WATCH 1AM SUN TO 1 PM SUN FOR PORTIONS OF SOUTH
CENTRAL LOWER MI.
LM...SMALL CRAFT ADVISORY ST. JOSEPH TO MANISTEE THROUGH 7 PM
TODAY.
&&
SYNOPSIS: MJS
SHORT TERM: MJS/JK
LONG TERM: NJJ
AVIATION: DUKE
MARINE: MJS
HYDROLOGY: MJSHazardous weather outlook, Dec 15, 12:23 AM EST, 3 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1223 AM EST SAT DEC 15 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-151030- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 1223 AM EST SAT DEC 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY HEAVY SNOW AND STRONG WINDS MAY MAKE TRAVEL NEARLY IMPOSSIBLE SUNDAY MORNING ACROSS PARTS OF SOUTHWEST LOWER MICHIGAN. A STRONG LOW PRESSURE SYSTEM WILL TRACK NORTHEAST ACROSS THE SOUTHERN OHIO RIVER VALLEY SATURDAY THROUGH SUNDAY. LIGHT SNOW IS EXPECTED TO SPREAD INTO SOUTHERN LOWER MICHIGAN SATURDAY AFTERNOON. SNOW IS EXPECTED TO PICK UP IN INTENSITY SATURDAY NIGHT AND CONTINUE INTO EARLY SUNDAY MORNING...ESPECIALLY SOUTHEAST OF A LINE FROM BATTLE CREEK TO LANSING. TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES OR GREATER ARE LIKELY SOUTHEAST OF THE BATTLE CREEK TO LANSING LINE. AMOUNTS WILL DECREASE FURTHER NORTH AND WEST. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. SNOWFALL REPORTS THIS WEEKEND WOULD BE HELPFUL. LMZ844>849-151030- 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- 1223 AM EST SAT DEC 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY WAVES GREATER THAN FOUR FEET WILL POSE A HAZARD TO SMALL CRAFT BEGINNING LATE SATURDAY NIGHT AND CONTINUING THROUGH SUNDAY. WINDS OF GALE FORCE ARE POSSIBLE SUNDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. BEACHLER NJJ OSTUNO
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 4:20 AM EST | Winter Storm Watch | GRR | Allegan, Barry, Clinton, Eaton, Gratiot, Ionia and 5 more | 6 hr |
| Dec 15, 10:47 AM EST | Winter Storm Watch | GRR | Lake, Mason, Oceana, Osceola | 4 hr |
| Dec 15, 2:27 PM EST | Snow and Blowing Snow Advisory | GRR | Lake, Mason, Oceana, Osceola | 21 hr |
Nearby
Winter Storm Warnings in Michigan, 2007Every winter storm warning in 2007
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.