Alert archive / Michigan / Winter Storm Warnings in 2011
Winter Storm Warning 4, NWS Marquette, MI
NWS Marquette, MI issued this winter storm warning at Apr 15, 2011, 4:33 PM EDT for Houghton County, Keweenaw County, Michigan. It took effect at Apr 16, 2011, 2:00 AM EDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 15, 2011, 4:33 PM EDT (20:33 UTC)
- In effect from
- Apr 16, 2011, 2:00 AM EDT
- Expired
- Apr 16, 2011, 10:47 AM EDT
- In force
- 9 hr
- Issued by
- NWS Marquette, MI
Counties Houghton County, MI, Keweenaw County, MI
The radar
The Marquette radar (KMQT), 95 km from the middle of the area, began a volume at 20:35 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.6 hours before the alert went out and 297 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
- 1829 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
275 WWUS43 KMQT 152033 WSWMQT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MARQUETTE MI 433 PM EDT FRI APR 15 2011 ...LATE SEASON WINTER WEATHER TO AFFECT WESTERN UPPER MICHIGAN LATE TONIGHT AND SATURDAY... .LOW PRESSURE OVER NORTHWEST MISSOURI WILL LIFT NORTHEAST... REACHING EASTERN UPPER MICHIGAN SATURDAY AFTERNOON. AS THE LOW APPROACHES... SNOW...RAIN...SLEET AND FREEZING RAIN WILL SPREAD INTO WESTERN UPPER MICHIGAN TONIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW SATURDAY. TOTAL SNOW ACCUMULATIONS BY SUNSET SATURDAY WILL RANGE FROM 2 TO 6 INCHES WITH HIGHER ACCUMULATIONS EXPECTED OVER NORTHWEST UPPER MICHIGAN AS PRECIPITATION REMAINS MOSTLY IN THE FORM OF SNOW THROUGH SATURDAY. MIZ001-003-160500- /O.UPG.KMQT.WW.Y.0009.110416T0600Z-110417T0000Z/ /O.NEW.KMQT.WS.W.0004.110416T0600Z-110417T0000Z/ KEWEENAW-NORTHERN HOUGHTON- INCLUDING THE CITIES OF...COPPER HARBOR...HOUGHTON...HANCOCK 433 PM EDT FRI APR 15 2011 ...WINTER STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...SLEET...AND SOME ICING...WHICH IS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT TONIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND FALL HEAVY AT TIMES INTO SATURDAY AFTERNOON...BEFORE DIMINISHING LATE IN THE DAY. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 5 TO 9 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH WILL OCCUR. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY CAUSE SOME TREE BRANCHES TO BREAK...CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER STORM WARNING FOR HEAVY SNOW AND SOME ICING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ009-010-160500- /O.CON.KMQT.WW.Y.0009.110416T0300Z-110416T2100Z/ GOGEBIC-IRON- INCLUDING THE CITIES OF...IRONWOOD...IRON RIVER 333 PM CDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM CDT SATURDAY... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP LATE THIS EVENING AND CONTINUE OVERNIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND THEN DIMINISH LATE SATURDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 3 TO 6 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ002-004-084-160500- /O.CON.KMQT.WW.Y.0009.110416T0600Z-110417T0000Z/ ONTONAGON-BARAGA-SOUTHERN HOUGHTON- INCLUDING THE CITIES OF...ONTONAGON...L'ANSE...KENTON...SIDNAW 433 PM EDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT TONIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND THEN DIMINISH LATE SATURDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 4 TO 7 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY CAUSE SOME TREE BRANCHES TO BREAK...CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ005-160500- /O.CON.KMQT.WW.Y.0009.110416T0600Z-110417T0000Z/ MARQUETTE- INCLUDING THE CITIES OF...GWINN...MARQUETTE 433 PM EDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... HAZARDOUS WEATHER... * SNOW...RAIN...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT TONIGHT. THE PRECIPITATION WILL GRADUALLY CHANGE TO MAINLY SNOW SATURDAY. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM LESS THAN 1 INCH EAST OF MARQUETTE AND GWINN TO AS MUCH AS 3 TO 5 INCHES FROM WITCH LATE TO ISHPEMING...CHAMPION AND THE HURON MOUNTAINS. ANY ICE ACCUMULATION TONIGHT WILL BE LESS THAN ONE-TENTH OF AN INCH. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY...ESPECIALLY WEST OF NEGAUNEE. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ JLA
3 follow-up statements
750 WWUS43 KMQT 160210 WSWMQT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MARQUETTE MI 1010 PM EDT FRI APR 15 2011 ...LATE SEASON WINTER WEATHER TO AFFECT WESTERN UPPER MICHIGAN LATE TONIGHT AND SATURDAY... .LOW PRESSURE OVER SOUTHEAST IOWA WILL LIFT NORTHEAST... REACHING EASTERN UPPER MICHIGAN SATURDAY AFTERNOON. AS THE LOW APPROACHES... SNOW...RAIN...SLEET AND FREEZING RAIN WILL SPREAD INTO WESTERN UPPER MICHIGAN OVERNIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW SATURDAY. TOTAL SNOW ACCUMULATIONS BY SUNSET SATURDAY WILL RANGE FROM 2 TO 8 INCHES WITH HIGHER ACCUMULATIONS EXPECTED OVER NORTHWEST UPPER MICHIGAN AS PRECIPITATION REMAINS MOSTLY IN THE FORM OF SNOW THROUGH SATURDAY. MIZ001-003-161015- /O.CON.KMQT.WS.W.0004.110416T0600Z-110417T0000Z/ KEWEENAW-NORTHERN HOUGHTON- INCLUDING THE CITIES OF...COPPER HARBOR...HOUGHTON...HANCOCK 1010 PM EDT FRI APR 15 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND FALL HEAVY AT TIMES INTO SATURDAY AFTERNOON...BEFORE DIMINISHING LATE IN THE DAY. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 4 TO 8 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH WILL OCCUR. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY CAUSE SOME TREE BRANCHES TO BREAK...CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER STORM WARNING FOR HEAVY SNOW AND SOME ICING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ009-010-161015- /O.CON.KMQT.WW.Y.0009.110416T0300Z-110416T2100Z/ GOGEBIC-IRON- INCLUDING THE CITIES OF...IRONWOOD...IRON RIVER 910 PM CDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT SATURDAY... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND THEN DIMINISH LATE SATURDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 3 TO 6 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ002-004-084-161015- /O.CON.KMQT.WW.Y.0009.110416T0600Z-110417T0000Z/ ONTONAGON-BARAGA-SOUTHERN HOUGHTON- INCLUDING THE CITIES OF...ONTONAGON...L'ANSE...KENTON...SIDNAW 1010 PM EDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT. THE PRECIPITATION WILL CHANGE TO MAINLY SNOW AROUND DAYBREAK SATURDAY MORNING...AND THEN DIMINISH LATE SATURDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM 4 TO 7 INCHES. LOCALLY HIGHER SNOW AMOUNTS ARE POSSIBLE. ICE ACCUMULATIONS TONIGHT OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY CAUSE SOME TREE BRANCHES TO BREAK...CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ005-161015- /O.CON.KMQT.WW.Y.0009.110416T0600Z-110417T0000Z/ MARQUETTE- INCLUDING THE CITIES OF...GWINN...MARQUETTE 1010 PM EDT FRI APR 15 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... HAZARDOUS WEATHER... * SNOW...RAIN...SLEET AND FREEZING RAIN WILL DEVELOP AFTER MIDNIGHT. THE PRECIPITATION WILL GRADUALLY CHANGE TO MAINLY SNOW SATURDAY. * TOTAL SNOW ACCUMULATIONS BY LATE SATURDAY AFTERNOON WILL RANGE FROM LESS THAN 1 INCH EAST OF MARQUETTE AND GWINN TO AS MUCH AS 3 TO 5 INCHES FROM WITCH LATE TO ISHPEMING...CHAMPION AND THE HURON MOUNTAINS. ANY ICE ACCUMULATION TONIGHT WILL BE LESS THAN ONE-TENTH OF AN INCH. IMPACTS... * MANY ROADS WILL BECOME SNOW AND SLUSH COVERED LATE TONIGHT AND SATURDAY...ESPECIALLY WEST OF NEGAUNEE. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BECOME ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ JLB
034 WWUS43 KMQT 160842 WSWMQT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MARQUETTE MI 442 AM EDT SAT APR 16 2011 ...LATE SEASON WINTER WEATHER TO AFFECT WESTERN UPPER MICHIGAN TODAY... .AS LOW PRESSURE OVER NORTHWEST ILLINOIS TRACKS TO EASTERN UPPER MICHIGAN THIS AFTERNOON...A MIX OF SNOW...RAIN...SLEET AND FREEZING RAIN OVER WESTERN UPPER MICHIGAN WILL GRADUALLY CHANGE TO ALL SNOW TODAY. TOTAL SNOW ACCUMULATIONS BY SUNSET TODAY WILL RANGE FROM 2 TO 6 INCHES WITH GREATEST AMOUNTS OVER NORTHWEST UPPER MICHIGAN. MIZ001-003-161645- /O.CON.KMQT.WS.W.0004.000000T0000Z-110417T0000Z/ KEWEENAW-NORTHERN HOUGHTON- INCLUDING THE CITIES OF...COPPER HARBOR...HOUGHTON...HANCOCK 442 AM EDT SAT APR 16 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... HAZARDOUS WEATHER... * SNOW...SLEET AND FREEZING RAIN WILL CHANGE TO MAINLY SNOW BY AFTERNOON. ALTHOUGH THE SNOW WILL DIMINISH LATE THIS AFTERNOON... SNOW WILL CONTINUE THROUGH TONIGHT. * TOTAL SNOW ACCUMULATIONS BY SUNSET TODAY WILL RANGE FROM 4 TO 6 INCHES. LIGHT ICE ACCUMULATIONS UP TO ONE-TENTH OF AN INCH WILL OCCUR THIS MORNING. IMPACTS... * MANY UNTREATED ROADS WILL BE SNOW AND SLUSH COVERED TODAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BE ICY AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY BREAK SOME TREE BRANCHES... CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER STORM WARNING FOR HEAVY SNOW AND SOME ICING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ011-161645- /O.EXA.KMQT.WW.Y.0009.000000T0000Z-110416T2100Z/ DICKINSON- INCLUDING THE CITY OF...IRON MOUNTAIN 342 AM CDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND LIGHT ICING...WHICH IS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON. HAZARDOUS WEATHER... * OCCASIONAL SNOW...RAIN...SLEET AND FREEZING RAIN WILL CHANGE TO MAINLY SNOW THIS AFTERNOON...AND THEN DIMINISH LATE IN THE DAY. * SNOW ACCUMULATIONS WILL RANGE FROM 1 TO 2 INCHES BY LATE THIS AFTERNOON. ICE ACCUMULATIONS AROUND ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * WHEN HEAVIER SNOW AND SLEET OCCUR...UNTREATED ROADS WILL BECOME SNOW AND SLUSH COVERED. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BE ICY AS WELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ009-010-161645- /O.CON.KMQT.WW.Y.0009.000000T0000Z-110416T2100Z/ GOGEBIC-IRON- INCLUDING THE CITIES OF...IRONWOOD...IRON RIVER 342 AM CDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... HAZARDOUS WEATHER... * OCCASIONAL SNOW...SLEET AND FREEZING RAIN WILL CHANGE TO ALL SNOW BY AFTERNOON...AND THEN DIMINISH LATE IN THE DAY. * TOTAL SNOW ACCUMULATIONS BY LATE THIS AFTERNOON WILL RANGE FROM 2 TO 4 INCHES. ICE ACCUMULATIONS AROUND ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * UNTREATED ROADS WILL BECOME SNOW AND SLUSH COVERED TODAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BE ICY THIS MORNING AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ002-004-084-161645- /O.CON.KMQT.WW.Y.0009.000000T0000Z-110417T0000Z/ ONTONAGON-BARAGA-SOUTHERN HOUGHTON- INCLUDING THE CITIES OF...ONTONAGON...L'ANSE...KENTON...SIDNAW 442 AM EDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... HAZARDOUS WEATHER... * OCCASIONAL SNOW...SLEET AND FREEZING RAIN WILL CHANGE TO MAINLY SNOW BY AFTERNOON. ALTHOUGH THE SNOW WILL DIMINISH LATE IN THE DAY...SNOW WILL CONTINUE THROUGH TONIGHT. * TOTAL SNOW ACCUMULATIONS BY SUNSET TODAY WILL RANGE FROM 3 TO 5 INCHES. ICE ACCUMULATIONS OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * UNTREATED ROADS WILL BECOME SNOW AND SLUSH COVERED TODAY. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BE ICY THIS MORNING AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY BREAK SOME TREE BRANCHES... CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ005-161645- /O.CON.KMQT.WW.Y.0009.000000T0000Z-110417T0000Z/ MARQUETTE- INCLUDING THE CITIES OF...GWINN...MARQUETTE 442 AM EDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... HAZARDOUS WEATHER... * OCCASIONAL SNOW...RAIN...SLEET AND FREEZING RAIN WILL GRADUALLY CHANGE TO MAINLY SNOW THIS AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY SUNSET TODAY WILL RANGE FROM LESS THAN 1 INCH EAST OF MARQUETTE AND GWINN TO AS MUCH AS 3 TO 5 INCHES FROM WITCH LAKE TO ISHPEMING...CHAMPION AND THE HURON MOUNTAINS. ICE ACCUMULATIONS OF UP TO ONE-TENTH OF AN INCH ARE EXPECTED. IMPACTS... * UNTREATED ROADS WILL BE SNOW AND SLUSH COVERED TODAY...ESPECIALLY WEST OF MARQUETTE. WHERE FREEZING RAIN OCCURS...UNTREATED ROADS WILL BE ICY THIS MORNING AS WELL. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET... OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ ROLFSON
494 WWUS43 KMQT 161447 WSWMQT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MARQUETTE MI 1047 AM EDT SAT APR 16 2011 ...LATE SEASON WINTER WEATHER WILL CONTINUE TO AFFECT WESTERN UPPER MICHIGAN TODAY INTO TONIGHT... .AS LOW PRESSURE OVER SOUTHERN LAKE MICHIGAN TRACKS TO EASTERN UPPER MICHIGAN THIS AFTERNOON...A MIX OF RAIN...SLEET AND SNOW WILL GRADUALLY CHANGE TO ALL SNOW TODAY. AS THE LOW LIFTS INTO ONTARIO...COLDER AIR WILL MOVE IN ON STRONG NORTHWEST WINDS. TOTAL SNOW ACCUMULATIONS BY SUNDAY MORNING WILL RANGE FROM 1 TO 5 INCHES WITH THE GREATEST AMOUNTS OVER NORTHWEST UPPER MICHIGAN. MIZ001-003-162300- /O.CAN.KMQT.WS.W.0004.000000T0000Z-110417T0000Z/ /O.EXB.KMQT.WW.Y.0009.000000T0000Z-110417T1500Z/ KEWEENAW-NORTHERN HOUGHTON- INCLUDING THE CITIES OF...COPPER HARBOR...HOUGHTON...HANCOCK 1047 AM EDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM EDT SUNDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT UNTIL 11 AM EDT SUNDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. HAZARDOUS WEATHER... * SNOW WILL BECOME HEAVIER AT TIMES THIS AFTERNOON AND EVENING AND WILL CONTINUE OVERNIGHT INTO SUNDAY MORNING. WINDS WILL BECOME NORTHWEST THIS AFTERNOON AND INCREASE TONIGHT WITH GUSTS TO AROUND 40 MPH AT TIMES. * TOTAL SNOW ACCUMULATIONS BY SUNDAY MORNING WILL RANGE FROM 2 TO 5 INCHES WITH THE GREATEST AMOUNTS OVER THE HIGHER TERRAIN. IMPACTS... * UNTREATED ROADS WILL BE SNOW AND SLUSH COVERED TODAY AND TONIGHT. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY BREAK SOME TREE BRANCHES... CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. 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. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ002-004-084-162300- /O.EXT.KMQT.WW.Y.0009.000000T0000Z-110417T1200Z/ ONTONAGON-BARAGA-SOUTHERN HOUGHTON- INCLUDING THE CITIES OF...ONTONAGON...L'ANSE...KENTON...SIDNAW 1047 AM EDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM EDT SUNDAY... HAZARDOUS WEATHER... * SNOW WILL BECOME HEAVIER AT TIMES THIS AFTERNOON AND CONTINUE THROUGH TONIGHT. WINDS WILL BECOME NORTHWEST THIS AFTERNOON AND INCREASE TONIGHT WITH GUSTS TO AROUND 40 MPH AT TIMES. * TOTAL SNOW ACCUMULATIONS BY SUNDAY MORNING WILL RANGE FROM 2 TO 4 INCHES. IMPACTS... * UNTREATED ROADS WILL BE SNOW AND SLUSH COVERED TODAY AND TONIGHT. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. * ACCUMULATION OF SNOW ON TREES MAY BREAK SOME TREE BRANCHES... CAUSING ISOLATED POWER OUTAGES...ESPECIALLY IN AREAS THAT EXPERIENCE STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ005-162300- /O.EXT.KMQT.WW.Y.0009.000000T0000Z-110417T0300Z/ MARQUETTE- INCLUDING THE CITIES OF...GWINN...MARQUETTE 1047 AM EDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... HAZARDOUS WEATHER... * OCCASIONAL SNOW...MIXED WITH RAIN AT TIMES NEAR LAKE SUPERIOR WILL GRADUALLY CHANGE TO MAINLY SNOW THIS AFTERNOON AND CONTINUE INTO THIS EVENING. * TOTAL SNOW ACCUMULATIONS BY SUNSET TODAY WILL RANGE FROM AROUND AN INCH EAST OF MARQUETTE AND GWINN TO AS MUCH AS 2 TO 4 INCHES FROM WITCH LAKE TO ISHPEMING...CHAMPION AND THE HURON MOUNTAINS. IMPACTS... * UNTREATED ROADS WILL BE SNOW AND SLUSH COVERED TODAY...ESPECIALLY WEST OF MARQUETTE. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ009-010-162100- /O.CON.KMQT.WW.Y.0009.000000T0000Z-110416T2100Z/ GOGEBIC-IRON- INCLUDING THE CITIES OF...IRONWOOD...IRON RIVER 947 AM CDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... HAZARDOUS WEATHER... * SNOW WILL INCREASE AND BECOME HEAVIER AT TIMES THIS AFTERNOON. * TOTAL SNOW ACCUMULATIONS BY LATE THIS AFTERNOON WILL RANGE FROM 1 TO 3 INCHES. IMPACTS... * UNTREATED ROADS WILL BECOME SNOW AND SLUSH COVERED TODAY. * SINCE THE SNOW WILL BE WET AND HEAVY...THE SNOW WILL BE DIFFICULT TO SHOVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ MIZ011-162100- /O.CON.KMQT.WW.Y.0009.000000T0000Z-110416T2100Z/ DICKINSON- INCLUDING THE CITY OF...IRON MOUNTAIN 947 AM CDT SAT APR 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... HAZARDOUS WEATHER... * OCCASIONAL SNOW...RAIN...SLEET WILL CHANGE TO MAINLY SNOW THIS AFTERNOON...AND THEN DIMINISH LATE IN THE DAY. * SNOW ACCUMULATIONS WILL RANGE FROM 1 TO 2 INCHES BY LATE THIS AFTERNOON. IMPACTS... * WHEN HEAVIER SNOW OCCURS...UNTREATED ROADS WILL BECOME SNOW AND SLUSH COVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...RAIN AND SLEET CHANGING TO SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. * FOR ADDITIONAL INFORMATION OR TO SUBMIT SNOWFALL REPORTS TO THE NWS MARQUETTE...VISIT WWW.WEATHER.GOV/MQT && $$ JLB
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 Marquette, MI wrote its last area forecast discussion before this winter storm warning went out at Apr 15, 1:48 PM EDT, 2 hours 45 minutes earlier.
Area forecast discussion, Apr 15, 1:48 PM EDT, 2 hours 45 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MARQUETTE MI
148 PM EDT FRI APR 15 2011
UPDATED AVIATION DISCUSSION FOR 18Z TAFS
.SYNOPSIS...
WATER VAPOR IMAGERY AND RUC ANALYSIS SHOW AN IMPRESSIVE LOOKING
SHORTWAVE/CLOSED LOW OVER KS...AND 00Z RAOBS SHOWED A HEALTHY 12HR
500MB HEIGHT FALL OF 180M AT KDDC. TO THE NW...ADDITIONAL ENERGY IS
STREAKING E OFF THE PACIFIC ALONG THE U.S./CANADIAN BORDER REGION.
THIS UPSTREAM ENERGY WILL HELP PULL SRN PLAINS SYSTEM NE INTO THE
GREAT LAKES OVER THE NEXT COUPLE OF DAYS. AT THE SFC...LOW PRES WAS
OVER NE KS WHILE STRONG HIGH PRES WAS RIDGING FROM THE NW
TERRITORIES TO ONTARIO.
&&
.DISCUSSION...
COMPLICATED PCPN FCST SHAPING UP TONIGHT/SAT AS CLOSED LOW OVER KS
SHIFTS E THEN NE AND OPENS UP IN RESPONSE TO SHORTWAVE TRACKING
ALONG U.S./CANADIAN BORDER. AHEAD OF THE SYSTEM...DRY WEATHER WILL
DOMINATE TODAY AS HIGH PRES OVER ONTARIO CONTINUES TO FEED DRY AIR
INTO THE UPPER LAKES ON ERLY WINDS. SPEAKING OF WINDS...THE
TIGHTENING PRES GRADIENT BTWN STRONG HIGH TO THE N AND LOW PRES TO
THE SW WILL LEAD TO INCREASING WINDS. WITH ERLY 950MB WINDS OVER NRN
LAKE MI INCREASING TO OVER 40KT MID TO LATE AFTN AND UPWARDS OF 50KT
BY 00Z...SEEMS REASONABLE THAT ADVY CRITERIA WINDS WILL OCCUR IN
MENOMINEE/DELTA/SCHOOLCRAFT COUNTIES. HOWEVER...IT WILL PROBABLY
ONLY BE ALONG THE SHORELINES AND OVER THE EXPOSED GARDEN/STONINGTON
PENINSULAS WHERE CRITERIA IS MET...AND WITH ISALLOBARIC WIND
ORIENTED A BIT S OF W...STRONGEST WINDS WILL LIKELY OCCUR ALONG THE
BAY FROM S OF KESC TO KMNM. LACK OF STRONG LOW-LEVEL INSTABILTY WILL
KEEP THIS FROM BEING A MORE SIGNIFICANT WIND EVENT. WHERE SHORELINES
ARE EXPOSED TO AN ERLY WIND...IT WILL BE A COLD DAY WITH TEMPS NOT
GETTING OUT OF THE 30S. OVER THE W TO THE INTERIOR E...MAX TEMPS
SHOULD REACH THE MID 40S.
SHORTWAVE OVER THE SRN PLAINS WILL BECOME NEGATIVILY TILTED AS IT
LIFTS THRU THE MID MISSISSIPPI VALLEY TONIGHT AND INTO THE GREAT
LAKES SAT. AT THE SFC...ASSOCIATED SFC LOW WILL TRACK NNE TO NEAR
KMKE SAT MORNING AND THEN TO ERN UPPER BY SAT EVENING. PUSH OF
STRONG ISENTROPIC ASCENT NOTED ON 295K SFC (AROUND 775MB) COMBINED
WITH COUPLED JET STRUCTURE TO ENHANCE UPPER DIVERGRENCE SHOULD LEAD
TO SOLID AREA OF PCPN SPREADING NNE ACROSS THE FCST AREA TONIGHT...
MOSTLY AFTER 06Z. PTYPE WILL BE HEADACHE OVER THE W HALF OF THE FCST
AREA. OVER THE E...WARMING TO A FEW DEGREES ABOVE 0C AT 850MB
SUGGESTS PTYPE DURING MAIN PORTION OF THE PCPN EVENT WILL BE RAIN.
HOWEVER...VERY DRY ANTECEDENT LOW-LEVEL AIRMASS DUE TO ERLY FLOW
WILL RESULT IN SIGNIFICANT EVAPORATIVE COOLING AT PCPN ONSET. THIS
MAY LEAD TO SOME MIXED PCPN FOR A TIME TONIGHT. TO THE W...
UNFORTUNATELY...THERE IS QUITE A SPREAD IN 850MB TEMPS. NAM/GFS ARE
WARMEST WITH 850MB 0C LINE SHIFTING TO FAR WRN UPPER MI TONIGHT.
REGIONAL GEM/UKMET/ECMWF ONLY GO AS FAR W AS ROUGHLY KIMT TO THE
HURON MTNS. WILL LEAN TOWARD THIS SLIGHTLY COOLER SOLUTION GIVEN
SUBSTANTIAL INITIAL DRY AIR TO PROVIDE EVAPORATIVE COOLING AND THEN
INCREASING HEIGHT FALLS HELPING TO MAINTAIN/COOL COLUMN...BUT
CONFIDENCE IS LOW. UNDER THIS SCENARIO...BELIEVE ADVY ISSUANCE IS
WARRANTED ATTM FOR IRON/MARQUETTE COUNTIES WESTWARD FOR A MIX OF
PCPN TONIGHT TRANSITIONING TO SNOW SAT. GREATEST SNOW ACCUMULATIONS
WILL BE OVER NW UPPER MI WHERE TOTALS MAY REACH 6 INCHES BY SAT
EVENING. IF PTYPE IS SNOW ONLY...IT'S QUITE POSSIBLE WARNING
CRITERIA COULD BE REACHED AS NAM/ECWMF/GFS/REGIONAL GEM ALL INDICATE
PCPN AMOUNTS OF THREE-QUARTERS TO OVER 1 INCH. THERE MAY BE A BRIEF
WINDOW FOR POSSIBLE LAKE ENHANCEMENT SAT AFTN OVER THE W AS 850MB
TEMPS FALL TOWARD -8C AT TAIL END OF SYNOPTIC FORCING. WILL BE
SOMETHING TO MONITOR TO BOOST SNOW ACCUMULATIONS SAT. TO THE
E...RAIN/SNOW LINE WILL GRADUALLY SHIFT E SAT AFTN...BUT PROBABLY
NOT TO KERY UNTIL EVENING.
SAT NIGHT/SUN...UPPER LAKES WILL BE UNDER CYCLONIC FLOW IN THE WAKE
OF SFC LOW MOVING TOWARD JAMES BAY. WITH 850MB TEMPS FCST TO BE IN
THE -10C TO -12C RANGE...CONDITIONS WILL BE MARGINAL FOR LES IN THE
WNW WIND SNOW BELTS SAT NIGHT THRU SUN MORNING. LES WILL DIMINISH
SUN AFTN UNDER DAYTIME HEATING. OTHERWISE...EXPECT BLUSTERY
CONDITIONS. WINDS WILL BE ESPECIALLY STRONG IN AREAS EXPOSED TO A
WNW WIND OFF LAKE SUPERIOR. GFS IS STRONGEST...SHOWING 950MB WINDS
AROUND 50KT AT 12Z SUN OVER THE E HALF OF LAKE SUPERIOR. GIVEN
COLDER AIRMASS SETTLING OVER THE AREA...HIGH END ADVY WINDS...
POSSIBLY WARNING...COULD OCCUR ALONG THE LAKE E OF MUNISING. IN ANY
EVENT...WILL NEED TO CONSIDER WIND ADVY HEADLINES FOR THE KEWEENAW
AND AREAS E OF KMQT SAT NIGHT/SUN MORNING.
A QUICK LOOK AT LATEST MEDIUM RANGE GUIDANCE SUGGESTS HIGHER POPS
ARE NEEDED LATER TUE/TUE NIGHT. COULD BE ANOTHER SYSTEM WITH MIXED
WINTRY PCPN.
&&
.AVIATION /FOR THE 18Z TAF ISSUANCE/...
STRETCH OF QUIET/VFR CONDITIONS COMES TO A SCREECHING HALT LATER
TONIGHT AS STORM SYSTEM OVR THE PLAINS LIFTS INTO THE GREAT LAKES.
EAST WINDS REMAIN GUSTY FOR MUCH OF THE PERIOD...BUT COULD EASE A
BIT TONIGHT WITH LOSS OF DAYTIME MIXING. EXPECT QUICK TRANSITION FM
VFR TO IFR CONDITIONS AFTER MIDNIGHT TONIGHT WHEN PCPN ARRIVES.
PTYPE VERY TRICKY OVERNIGHT WITH WARM LAYER AT 5KFT AND COLD SFC
TEMPS INDICATING A THREAT OF FZRA AT BOTH SITES. IF SFC TEMPS END UP
SLIGHTLY WARMER...WOULD JUST BE MAINLY RAIN. BEST CHANCE OF ONLY
RAIN WOULD BE AT KSAW. TRANSITION TO SNOW OCCURS AT BOTH SITES ON
SATURDAY MORNING. SNOW MAY TURN HEAVY AT KCMX ON SATURDAY MORNING
WITH LOCAL CLIMATOLOGY INDICATING A POTENTIAL OF VLIFR CONDITIONS BY
THAT TIME.
&&
.MARINE /FOR THE 4AM LAKE SUPERIOR FORECAST ISSUANCE/...
A STRONG PRESSURE GRADIENT BETWEEN HIGH PRESSURE JUST SOUTH OF JAMES
BAY AND A LOW DEVELOPING IN THE CENTRAL PLAINS WILL LEAD TO
NORTHEAST GALES OVER FAR WESTERN LAKE SUPERIOR TODAY. AS THE LOW
PUSHES NORTHEAST TONIGHT...EXPECT EAST GALES TO 35 KNOTS /MAINLY
GUSTS/ OVER THE REST OF THE LAKE TONIGHT AND INTO SATURDAY MORNING.
DECIDED TO CONVERT THE WATCH TO A WARNING FOR THE REST OF LAKE
SUPERIOR STARTING THIS EVENING. WITH THE STRONG LOW PASSING OVER
EASTERN LAKE SUPERIOR SATURDAY AFTERNOON...WINDS SHOULD DIMINISH
SOME...BEFORE QUICKLY INTENSIFYING BACK TO NW GALES ON SATURDAY
EVENING. THE WINDS SAT NIGHT INTO SUN WILL LIKELY BE THE STRONGEST
OF THE STORM...WITH GUSTS APPROACHING STORM FORCE OVER THE EASTERN
HALF OF THE LAKE. THEREFORE...EXTENDED THE GALE WARNING ALL THE WAY
INTO SUN...EVEN THOUGH THERE WILL BE A PERIOD OF LIGHTER WINDS SAT
AFTERNOON WITH THE PASSAGE OF THE LOW. WINDS ARE EXPECTED TO WEAKEN
SUNDAY NIGHT AND INTO MON...AS HIGH PRESSURE SETTLES JUST N OF LAKE
SUPERIOR.
&&
.HYDROLOGY /FOR THE 4AM ISSUANCE/...
DRY WEATHER OVER THE LAST COUPLE OF DAYS HAS ALLOWED RIVERS TO FALL
ACROSS UPPER MICHIGAN. A LOW PRESSURE SYSTEM MOVING THROUGH THE
GREAT LAKES REGION ON SATURDAY WILL PRODUCE A WINTRY MIX OF
PRECIPITATION ACROSS THE AREA. AT THIS TIME...LIQUID EQUIVALENT
AMOUNTS OF 0.66 TO 1.0 INCH ARE EXPECTED ACROSS UPPER MICHIGAN. THIS
WILL LIKELY LEAD TO RIVERS RISING AGAIN...BUT AT THIS TIME RIVERS
ARE EXPECTED TO STAY BELOW ACTION STAGE.
&&
.MQT WATCHES/WARNINGS/ADVISORIES...
UPPER MICHIGAN...
WINTER WEATHER ADVISORY FROM 2 AM TO 8 PM EDT SATURDAY FOR
MIZ001>005-084.
WIND ADVISORY UNTIL 8 AM EDT /7 AM CDT/ SATURDAY FOR MIZ012>014.
WINTER WEATHER ADVISORY FROM 10 PM THIS EVENING TO 4 PM CDT
SATURDAY FOR MIZ009-010.
LAKE SUPERIOR...
GALE WARNING FROM 11 PM THIS EVENING TO 8 PM EDT SUNDAY FOR
LSZ264>267.
GALE WARNING UNTIL 11 AM EDT /10 AM CDT/ SATURDAY FOR LSZ162.
GALE WARNING UNTIL 11 AM EDT SATURDAY FOR LSZ263.
LAKE MICHIGAN...
GALE WARNING UNTIL 8 AM EDT SATURDAY FOR LMZ221-248-250.
&&
SYNOPSIS...ROLFSON
DISCUSSION...ROLFSON
AVIATION...JLA
MARINE...SRFHazardous weather outlook, Apr 15, 6:47 AM EDT, 9 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 647 AM EDT FRI APR 15 2011 MIZ001-003-161200- KEWEENAW-NORTHERN HOUGHTON- 647 AM EDT FRI APR 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A MIX OF SNOW...SLEET...FREEZING RAIN AND RAIN WILL SPREAD ACROSS WESTERN UPPER MICHIGAN TONIGHT. SNOW AND LIGHT ICE ACCUMULATIONS WILL OCCUR. SEE THE LATEST WINTER WEATHER STATEMENT FOR COMPLETE DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SEVERAL INCHES OF SNOW ACCUMULATION IS POSSIBLE SATURDAY. SEE THE LATEST WINTER WEATHER STATEMENT FOR COMPLETE DETAILS. NORTHWEST WINDS MAY GUST TO 45 MPH SATURDAY NIGHT AND SUNDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ICING...SNOW AND WIND TONIGHT THROUGH SATURDAY NIGHT WOULD BE APPRECIATED. MIZ002-004-005-009-010-084-161200- ONTONAGON-BARAGA-MARQUETTE-GOGEBIC-IRON-SOUTHERN HOUGHTON- 647 AM EDT FRI APR 15 2011 /547 AM CDT FRI APR 15 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A MIX OF SNOW...SLEET...FREEZING RAIN AND RAIN WILL SPREAD ACROSS WESTERN UPPER MICHIGAN TONIGHT. SNOW AND LIGHT ICE ACCUMULATIONS WILL OCCUR. SEE THE LATEST WINTER WEATHER STATEMENT FOR COMPLETE DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SEVERAL INCHES OF SNOW ACCUMULATION IS POSSIBLE SATURDAY. SEE THE LATEST WINTER WEATHER STATEMENT FOR COMPLETE DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ICING AND SNOW TONIGHT AND SATURDAY WOULD BE APPRECIATED. MIZ006-007-161200- ALGER-LUCE- 647 AM EDT FRI APR 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT RAIN WILL DEVELOP OVERNIGHT TONIGHT. TEMPERATURES MAY BE JUST COLD ENOUGH TO RESULT IN SPOTTY FREEZING RAIN AND SOME ICY SPOTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NORTHWEST WINDS MAY GUST AS HIGH AS 45 TO 55 MPH ALONG THE LAKE SUPERIOR SHORE SATURDAY NIGHT AND SUNDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ANY ICING TONIGHT WOULD BE APPRECIATED. MIZ011-161200- DICKINSON- 547 AM CDT FRI APR 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A MIX OF RAIN AND SOME SNOW...SLEET AND FREEZING RAIN IS EXPECTED TONIGHT. SOME ICY SPOTS MAY DEVELOP ON ROADS AND SIDEWALKS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A MIX OF PRECIPITATION WILL CHANGE TO MAINLY SNOW SATURDAY. MINOR SNOW ACCUMULATIONS ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ANY ICING TONIGHT WOULD BE APPRECIATED. MIZ085-161200- NORTHERN SCHOOLCRAFT- 647 AM EDT FRI APR 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT RAIN WILL DEVELOP OVERNIGHT TONIGHT. TEMPERATURES MAY BE JUST COLD ENOUGH TO RESULT IN SPOTTY FREEZING RAIN AND SOME ICY SPOTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ANY ICING TONIGHT WOULD BE APPRECIATED. MIZ012>014-161200- MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- 647 AM EDT FRI APR 15 2011 /547 AM CDT FRI APR 15 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT EASTERLY WINDS MAY GUST AS HIGH AS 50 MPH ALONG THE LAKE MICHIGAN SHORE THIS AFTERNOON AND TONIGHT. SEE THE LATEST WEATHER MESSAGE FOR COMPLETE DETAILS. RAIN WILL DEVELOP TONIGHT. TEMPERATURES MAY BE JUST COLD ENOUGH TO RESULT IN SPOTTY FREEZING RAIN AND SOME ICY SPOTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF WIND TODAY AND TONIGHT AND ANY ICING TONIGHT WOULD BE APPRECIATED. LSZ162-240>251-263>267-161200- LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5NM-SAXON HARBOR WI TO BLACK RIVER MI- BLACK RIVER TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI- EAGLE RIVER TO MANITOU ISLAND MI- MANITOU ISLAND TO POINT ISABELLE MI- POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI- LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS-HURON ISLANDS TO MARQUETTE MI- MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI- GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE ROYALE NATIONAL PARK- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 647 AM EDT FRI APR 15 2011 /547 AM CDT FRI APR 15 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT EAST TO NORTHEAST GALES ARE EXPECTED OVER WESTERN LAKE SUPERIOR TODAY AND ACROSS MOST OF LAKE SUPERIOR TONIGHT. SEE THE LATEST MARINE FORECAST AND MARINE WEATHER MESSAGE FOR COMPLETE DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY GALES ARE EXPECTED OVER MOST OF LAKE SUPERIOR SATURDAY MORNING...THEN OVER CENTRAL AND EASTERN LAKE SUPERIOR SATURDAY AFTERNOON THROUGH SUNDAY AFTERNOON. STORM FORCE GUSTS COULD OCCUR OVER EASTERN LAKE SUPERIOR LATE SATURDAY NIGHT AND SUNDAY MORNING. SEE THE LATEST MARINE FORECAST AND MARINE WEATHER MESSAGE FOR MORE DETAILS. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. LMZ221-248-250-161200- GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- 5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE- 647 AM EDT FRI APR 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT EAST GALES ARE EXPECTED TODAY AND TONIGHT. SEE THE LATEST MARINE FORECAST AND MARINE WEATHER MESSAGE FOR MORE DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY EAST GALES ARE EXPECTED SATURDAY MORNING. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. ROLFSON
The office that day
Everything else NWS Marquette, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 4:56 AM EDT | Winter Weather Advisory | MQT | Alger, Baraga, Dickinson, Gogebic, Houghton, Iron and 4 more | 63 hr |
| Apr 15, 5:19 PM EDT | Gale Watch | MQT | 12 hr |
Nearby
Winter Storm Warnings in Michigan, 2011Every winter storm 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.