Alert archive / Montana / Winter Storm Warnings in 2005
Winter Storm Warning 5, NWS Great Falls, MT
NWS Great Falls, MT issued this winter storm warning at Dec 5, 2005, 9:58 AM MST. It took effect at Dec 5, 2005, 11:00 AM MST. It was in force for 17 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
- Dec 5, 2005, 9:58 AM MST (16:58 UTC)
- In effect from
- Dec 5, 2005, 11:00 AM MST
- Expired
- Dec 6, 2005, 3:53 AM MST
- In force
- 17 hr
- Issued by
- NWS Great Falls, MT
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KTFX 051658 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 958 AM MST MON DEC 5 2005 .A WEATHER SYSTEM FROM CANADA WILL SPREAD SOUTH OVER MONTANA TONIGHT INTO TUESDAY. THE ASSOCIATED COLD FRONT WILL REACH THE U.S. BORDER BY NOON TODAY AND WILL SPREAD SOUTH TO CENTRAL MONTANA BY LATE THIS AFTERNOON. THE COLD FRONT WILL SPREAD THROUGH THE REMAINDER OF MONTANA EAST OF THE CONTINENTAL DIVIDE BY MIDNIGHT. MTZ012-013-050-051-060100- /O.UPG.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.NEW.KTFX.WS.W.0005.051205T1800Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ CASCADE-CHOUTEAU-JUDITH BASIN-FERGUS- INCLUDING THE CITIES OF...GREAT FALLS...FORT BENTON...STANFORD... LEWISTOWN 958 AM MST MON DEC 5 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST TUESDAY. THE SNOW AND BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY. AREAS OF SNOW HAVE DEVELOPED THIS MORNING AND WILL CONTINUE THROUGH THE DAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED OVER THE PLAINS WITH 8 TO 16 INCHES EXPECTED ALONG NORTH FACING SLOPES AND IN THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. 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. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ054-060100- /O.NEW.KTFX.WS.W.0005.051205T1800Z-051206T1200Z/ MEAGHER- INCLUDING THE CITY OF...WHITE SULPHUR SPRINGS 958 AM MST MON DEC 5 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST TUESDAY. AREAS OF SNOW HAVE DEVELOPED THIS MORNING AND WILL CONTINUE THROUGH THE DAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS WITH 8 TO 16 INCHES EXPECTED IN THE MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ008-015-052-053-055-060100- /O.EXB.KTFX.SB.Y.0004.051206T0000Z-051206T1200Z/ BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-GALLATIN- INCLUDING THE CITIES OF...DILLON...ENNIS...BOULDER...TOWNSEND... BOZEMAN...WEST YELLOWSTONE 958 AM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 15 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS WITH 4 TO 8 INCHES EXPECTED IN THE MOUNTAINS. 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. $$ MTZ009>011-044>049-060100- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON- INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...SHELBY... CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD 958 AM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY. WEST WINDS OF 15 TO 30 MPH WITH GUSTS UP TO 45 MPH HAVE DEVELOPED THIS MORNING ALONG THE ROCKY MOUNTAINS FRONT. WINDS WILL SHIFT TO THE NORTH AT 20 TO 30 MPH WITH GUSTS TO 40 MPH THIS AFTERNOON AS AN ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. THE STRONG WINDS COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF UP TO 3 INCHES ARE EXPECTED ACROSS THE PLAINS WITH 3 TO 6 INCHES EXPECTED IN THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ014-060100- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ CENTRAL AND SOUTHERN LEWIS AND CLARK- INCLUDING THE CITY OF...HELENA 958 AM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. WEST WINDS OF 15 TO 30 MPH WITH GUSTS UP TO 45 MPH HAVE DEVELOPED THIS MORNING. WINDS WILL SHIFT TO THE NORTH AT 20 TO 30 MPH WITH GUSTS TO 40 MPH LATE THIS AFTERNOON AS AN ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. THE STRONG WINDS COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF UP TO 3 INCHES ARE EXPECTED ACROSS THE PLAINS WITH 3 TO 6 INCHES EXPECTED IN THE MOUNTAINS. 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. $$
4 follow-up statements
000 WWUS45 KTFX 052122 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 222 PM MST MON DEC 5 2005 .A WEATHER SYSTEM FROM CANADA WILL SPREAD SOUTH OVER MONTANA TONIGHT INTO TUESDAY. THE ASSOCIATED COLD FRONT REACHED THE U.S. BORDER AROUND NOON TODAY AND IS MOVING SOUTH INTO CENTRAL MONTANA. THE COLD FRONT WILL PUSH THROUGH THE REMAINDER OF MONTANA SOUTHERN AND EASTERN BY MIDNIGHT. WIDESPREAD SNOW AND STRONG WINDS CAN BE EXPECT WITH THE FRONT. MTZ012-013-050-051-060500- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ CASCADE-CHOUTEAU-JUDITH BASIN-FERGUS- INCLUDING THE CITIES OF...GREAT FALLS...FORT BENTON...STANFORD... LEWISTOWN 222 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED OVER THE PLAINS WITH 8 TO 16 INCHES EXPECTED ALONG NORTH FACING SLOPES AND IN THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. 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. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ054-060500- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ MEAGHER- INCLUDING THE CITY OF...WHITE SULPHUR SPRINGS 222 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS WITH 8 TO 16 INCHES EXPECTED IN THE MOUNTAINS. 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. $$ MTZ009>011-044>049-060500- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON- INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...SHELBY... CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD 222 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY. NORTH WINDS OF 25 TO 35 MPH WITH GUSTS TO 50 MPH HAVE DEVELOPED THIS AFTERNOON. THE STRONG WINDS COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF UP TO 3 INCHES ARE EXPECTED ACROSS THE PLAINS WITH 3 TO 6 INCHES EXPECTED IN THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ014-060500- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ CENTRAL AND SOUTHERN LEWIS AND CLARK- INCLUDING THE CITY OF...HELENA 222 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. WEST WINDS OF 15 TO 30 MPH WITH GUSTS UP TO 45 MPH WILL SHIFT TO THE NORTH AT 20 TO 30 MPH WITH GUSTS TO 40 MPH LATE THIS AFTERNOON AS AN ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. THE STRONG WINDS COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF UP TO 3 INCHES ARE EXPECTED ACROSS THE PLAINS WITH 3 TO 6 INCHES EXPECTED IN THE MOUNTAINS. 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. $$ MTZ008-015-052-053-055-060500- /O.CON.KTFX.SB.Y.0004.051206T0000Z-051206T1200Z/ BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-GALLATIN- INCLUDING THE CITIES OF...DILLON...ENNIS...BOULDER...TOWNSEND... BOZEMAN...WEST YELLOWSTONE 222 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 15 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS WITH 4 TO 8 INCHES EXPECTED IN THE MOUNTAINS. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
000 WWUS45 KTFX 052321 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 421 PM MST MON DEC 5 2005 .A WEATHER SYSTEM FROM CANADA WILL SPREAD SOUTH OVER MONTANA TONIGHT INTO TUESDAY. THE ASSOCIATED COLD FRONT REACHED THE U.S. BORDER AROUND NOON TODAY AND IS MOVING SOUTH INTO CENTRAL MONTANA. THE COLD FRONT WILL PUSH THROUGH THE REMAINDER OF MONTANA SOUTHERN AND EASTERN BY MIDNIGHT. WIDESPREAD SNOW AND STRONG WINDS CAN BE EXPECT WITH THE FRONT. MTZ052-053-060730- /O.UPG.KTFX.SB.Y.0004.051206T0000Z-051206T1200Z/ /O.EXA.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ JEFFERSON-BROADWATER- INCLUDING THE CITIES OF...BOULDER...TOWNSEND 421 PM MST MON DEC 5 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST TUESDAY. THE SNOW AND BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. SNOW WILL BECOME WIDESPREAD BY THIS EVENING IN THE HELENA VALLEY...AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 25 TO 40 MPH...WITH GUSTS TO 55 MPH...COMBINED WITH SNOW WILL PRODUCE WHITEOUT CONDITIONS AT TIMES THIS EVENING. VISIBILITY WILL BE REDUCED TO LESS THAN ONE QUARTER OF A MILE BETWEEN 5 PM AND 8 PM THIS EVENING. EXPECT SNOW ACCUMULATIONS OF 2 TO 4 INCHES IN THE VALLEYS...WITH 4 TO 8 INCHES EXPECTED IN THE MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS WILL ALSO OCCUR. THIS WILL MAKE TRAVEL IMPOSSIBLE AT TIMES THIS EVENING. $$ MTZ014-060730- /O.UPG.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.EXA.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ CENTRAL AND SOUTHERN LEWIS AND CLARK- INCLUDING THE CITY OF...HELENA 421 PM MST MON DEC 5 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST TUESDAY. THE SNOW AND BLOWING SNOW ADVISORY IS NO LONGER IN EFFECT. SNOW WILL BECOME WIDESPREAD BY THIS EVENING IN THE HELENA VALLEY...AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 25 TO 40 MPH...WITH GUSTS TO 55 MPH...COMBINED WITH SNOW WILL PRODUCE WHITEOUT CONDITIONS AT TIMES THIS EVENING. VISIBILITY WILL BE REDUCED TO LESS THAN ONE QUARTER OF A MILE BETWEEN 5 PM AND 8 PM THIS EVENING. EXPECT SNOW ACCUMULATIONS OF 2 TO 4 INCHES IN THE VALLEYS...WITH 4 TO 8 INCHES EXPECTED IN THE MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS WILL ALSO OCCUR. THIS WILL MAKE TRAVEL IMPOSSIBLE AT TIMES THIS EVENING. $$ MTZ012-013-050-051-060730- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ CASCADE-CHOUTEAU-JUDITH BASIN-FERGUS- INCLUDING THE CITIES OF...GREAT FALLS...FORT BENTON...STANFORD... LEWISTOWN 421 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 25 TO 40 MPH...WITH GUSTS TO 50 MPH...COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE QUARTER MILE BETWEEN 4 AND 8 PM THIS EVENING. EXPECT SNOW ACCUMULATIONS OF 1 TO 3 INCHES OVER THE PLAINS...AND 8 TO 16 INCHES ALONG NORTH FACING SLOPES OF THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS...WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS WILL ALSO OCCUR. THIS WILL MAKE TRAVEL IMPOSSIBLE AT TIMES THIS EVENING. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ054-060730- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ MEAGHER- INCLUDING THE CITY OF...WHITE SULPHUR SPRINGS 421 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 25 TO 40 MPH...WITH GUSTS TO 50 MPH...COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE QUARTER MILE BETWEEN 4 AND 8 PM THIS EVENING. EXPECT SNOW ACCUMULATIONS OF 1 TO 3 INCHES IN THE VALLEYS...AND 8 TO 16 INCHES ALONG NORTH FACING SLOPES OF THE MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ009>011-044>049-060730- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.051206T0000Z-051206T1800Z/ NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON- INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...SHELBY... CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD 421 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY. NORTH WINDS OF 25 TO 35 MPH...WITH GUSTS TO 50 MPH...WILL CONTINUE OVER THE ROCKY MOUNTAIN FRONT THIS EVENING. THE STRONG WINDS COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE QUARTER OF A MILE. EXPECT NEW SNOW ACCUMULATIONS OF 1 TO 3 INCHES OVER THE PLAINS...AND UP TO 6 INCHES IN THE MOUNTAINS. ALSO THE COMBINATION OF COLD AIR AND GUSTY WINDS WILL PRODUCE WIND CHILLS OF 10 TO 30 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ008-015-055-060730- /O.CON.KTFX.SB.Y.0004.051206T0000Z-051206T1200Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE CITIES OF...DILLON...ENNIS...BOZEMAN... WEST YELLOWSTONE 421 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD BY THIS EVENING AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 15 TO 30 MPH WITH GUSTS TO 40 MPH COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES VISIBILITY WILL DROP BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS WITH 4 TO 8 INCHES EXPECTED IN THE MOUNTAINS. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
000 WWUS45 KTFX 060459 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 959 PM MST MON DEC 5 2005 MTZ012-013-050-051-061200- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.000000T0000Z-051206T1800Z/ CASCADE-CHOUTEAU-JUDITH BASIN-FERGUS- INCLUDING THE CITIES OF...GREAT FALLS...FORT BENTON...STANFORD... LEWISTOWN 959 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY. SNOW WILL CONTINUE TO FALL OVER CENTRAL MONTANA THROUGH TONIGHT. EXPECT VISIBILITIES TO BE REDUCED TO ONE MILE AT TIMES THROUGH 3 AM. NEW SNOW ACCUMULATIONS TONIGHT OF 1 TO 3 INCHES OVER POSSIBLE OVER THE PLAINS...AND 4 TO 8 INCHES IN THE MOUNTAINS. THE HEAVIEST SNOW WILL OCCUR IN THE MOUNTAINS NEAR AND AROUND LEWISTOWN. ALSO THE COMBINATION OF COLD AIR AND WINDS...WILL PRODUCE WIND CHILLS OF 15 TO 25 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE...AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ014-052>054-061200- /O.CON.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ CENTRAL AND SOUTHERN LEWIS AND CLARK-JEFFERSON-BROADWATER-MEAGHER- INCLUDING THE CITIES OF...HELENA...BOULDER...TOWNSEND... WHITE SULPHUR SPRINGS 959 PM MST MON DEC 5 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. SNOW WILL CONTINUE TO FALL OVER SOUTHWEST MONTANA THROUGH TONIGHT. EXPECT VISIBILITIES TO BE REDUCED TO ONE MILE AT TIMES THROUGH 3 AM. NEW SNOW ACCUMULATIONS TONIGHT OF 1 TO 3 INCHES OVER POSSIBLE IN THE VALLEYS...AND UP TO 6 INCHES IN THE MOUNTAINS. $$ MTZ009>011-044>049-061200- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.CON.KTFX.WC.Y.0001.000000T0000Z-051206T1800Z/ NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON- INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...SHELBY... CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD 959 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY. LIGHT SNOW WILL CONTINUE OVER THE ROCKY MOUNTAIN FRONT AND FROM CUT BANK TO HAVRE THROUGH MUCH OF TONIGHT. NEW SNOW ACCUMULATIONS WILL GENERALLY BE LESS THAN ONE INCH. HOWEVER...GUSTY NORTH WINDS GUSTING TO 30 MPH...WILL ALLOW FOR BLOWING AND DRIFTING OF THE SNOW TO CONTINUE. ALSO THE COMBINATION OF COLD AIR AND WINDS WILL PRODUCE WIND CHILLS OF 15 TO 25 DEGREES BELOW ZERO TONIGHT. THESE COLD WIND CHILLS WILL CONTINUE INTO TUESDAY MORNING. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE...AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$ MTZ008-015-055-061200- /O.CON.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE CITIES OF...DILLON...ENNIS...BOZEMAN... WEST YELLOWSTONE 959 PM MST MON DEC 5 2005 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY. SNOW WILL BECOME WIDESPREAD OVER SOUTHWEST MONTANA...AS A STRONG ARCTIC COLD FRONT SWEEPS THROUGH THE AREA. NORTH WINDS OF 15 TO 30 MPH...WITH GUSTS TO 40 MPH...COMBINED WITH SNOW WILL PRODUCE BLOWING SNOW. VISIBILITY WILL BE REDUCED TO LESS THAN ONE MILE AND AT TIMES...WITH AREAS BELOW ONE QUARTER OF A MILE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED IN THE VALLEYS...WITH 4 TO 6 INCHES EXPECTED IN THE MOUNTAINS. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED...DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
000 WWUS45 KTFX 061053 WSWTFX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 353 AM MST TUE DEC 6 2005 MTZ012-013-050-051-061200- /O.CAN.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ /O.CAN.KTFX.WC.Y.0001.000000T0000Z-051206T1800Z/ CASCADE-CHOUTEAU-JUDITH BASIN-FERGUS- INCLUDING THE CITIES OF...GREAT FALLS...FORT BENTON...STANFORD... LEWISTOWN 353 AM MST TUE DEC 6 2005 ...WINTER STORM WARNING IS CANCELLED... ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE WINTER STORM WARNING. THE WIND CHILL ADVISORY HAS BEEN CANCELLED. SNOW AND WINDS HAVE DIMINISHED OVER THE AREA. LOCAL WIND CHILLS OF 20 BELOW ZERO TO 25 BELOW ZERO CAN BE EXPECTED UNTIL SHORTLY AFTER SUNRISE. EXPOSED FLESH CAN FREEZE IN AS LITTLE AS 30 MINUTES AT THESE WIND CHILLS. BE SURE TO WEAR PROPER CLOTHING AS YOU VENTURE OUTSIDE THIS MORNING. $$ MTZ014-052>054-061200- /O.CAN.KTFX.WS.W.0005.000000T0000Z-051206T1200Z/ CENTRAL AND SOUTHERN LEWIS AND CLARK-JEFFERSON-BROADWATER-MEAGHER- INCLUDING THE CITIES OF...HELENA...BOULDER...TOWNSEND... WHITE SULPHUR SPRINGS 353 AM MST TUE DEC 6 2005 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE WINTER STORM WARNING. SNOW AND WINDS HAVE DIMINISHED OVER THE AREA. $$ MTZ009>011-044>049-061200- /O.CAN.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ /O.CAN.KTFX.WC.Y.0001.000000T0000Z-051206T1800Z/ NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON- INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...SHELBY... CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD 353 AM MST TUE DEC 6 2005 ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE SNOW AND BLOWING SNOW ADVISORY. THE WIND CHILL ADVISORY HAS BEEN CANCELLED. SNOW AND WINDS HAVE DIMINISHED OVER THE AREA. AREAS OF WIND CHILLS 20 BELOW ZERO TO 30 BELOW ZERO CAN BE EXPECTED UNTIL AROUND SUNRISE. EXPOSED FLESH CAN FREEZE IN AS LITTLE AS 30 MINUTES AT THESE WIND CHILLS. BE SURE TO WEAR PROPER CLOTHING AS YOU VENTURE OUTSIDE EARLY THIS MORNING. $$ MTZ008-015-055-061200- /O.CAN.KTFX.SB.Y.0004.000000T0000Z-051206T1200Z/ BEAVERHEAD-MADISON-GALLATIN- INCLUDING THE CITIES OF...DILLON...ENNIS...BOZEMAN... WEST YELLOWSTONE 353 AM MST TUE DEC 6 2005 ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE SNOW AND BLOWING SNOW ADVISORY. WINDS AND SNOW HAVE DIMINISHED OVER THE AREA. STILL EXPECT AREAS OF BLOWING SNOW INTO THE MORNING WITH LOCAL VISIBILITIES NEAR ONE QUARTER OF A MILE. $$
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 Great Falls, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 5, 9:44 AM MST, 14 minutes earlier.
Area forecast discussion, Dec 5, 9:44 AM MST, 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 944 AM MST MON DEC 5 2005 .UPDATE... WILL UPDATE ZONES AND STATE BY 10 AM. HAVE RAISED SOME HIGHS FOR TODAY MAINLY OVER THE SOUTHWEST AS THEY ARE AT OR ALREADY ABOVE FORECASTED TEMPERATURES. WILL LOWER TEMPERATURES OVER NORTHEASTERN ZONES AS TEMPERATURES WILL NOT RAISE AS MUCH AS PREVIOUSLY THOUGHT. SPOTTERS IN FERGUS COUNTY HAVE REPORTED UP TO 8 INCHES OF SNOW IN HIGHER ELEVATIONS WITH 2 INCHES OVER PLAINS. WILL ISSUE A WINTER STORM WARNING FOR SEVERAL COUNTIES FOR SNOW AND WINDS THIS AFTERNOON AND TONIGHT. HAVE RAISED CHANCE OF SNOW OVER THE WARNING ZONES AS WELL. CAMP && .AVIATION... UPDATED 1152Z. WEAK CONVERGENCE ALONG A SURFACE FRONT WILL CONTINUE TO PRODUCE POCKETS OF LIGHT SNOW AND MVFR CONDITIONS AROUND KLWT THIS MORNING. STRONG WESTERLY SURFACE WINDS WILL DEVELOP THIS MORNING WEST OF A KHVR TO KLWT LINE. AREAS OF MVFR DUE TO BLOWING SNOW CAN BE EXPECTED AROUND KCTB AND KGTF LATE THIS MORNING AND EARLY THIS AFTERNOON. MEANWHILE...AN ARCTIC COLD FRONT WILL MOVE INTO NORTH CENTRAL MONTANA BY THE MIDDLE OF THE AFTERNOON. THE FRONT WILL THEN CROSS MOST OF CENTRAL MONTANA BY EARLY THIS EVENING...AND MOST OF SOUTHWEST MONTANA BY 12Z TUESDAY. A 2 TO 4 HOUR PERIOD OF STRONG AND GUSTY NORTHERLY WINDS CAN BE EXPECTED AS THE FRONT PASSES. CEILINGS WILL ALSO LOWER WITH LIGHT SNOW DEVELOPING OVER ALL AREAS BEHIND THE FRONT. MVFR WITH LOCAL IFR CONDITIONS CAN BE EXPECTED WITH THE SNOW OVERNIGHT. SCHAUMANN && .PREV DISCUSSION... (ISSUED 452 AM MST MON DEC 5 2005) DISCUSSION... TODAY THROUGH WEDNESDAY...UPPER TROUGH FROM CANADA WILL BE MOVING SOUTH OVER THE AREA TONIGHT AND TUESDAY. TROUGH WILL BE PRECEDED BY A COLD FRONT WHICH SHOULD MOVE SOUTH OVER THE PLAINS THIS AFTERNOON AND THROUGH THE REST OF THE FORECAST AREA THIS EVENING. BEFORE THE FRONT EXPECT GUSTY SOUTHWEST WINDS ALONG THE EAST SLOPES OF THE ROCKY MOUNTAINS. MOS GUIDANCE SEEMS TOO LOW WITH POPS CONSIDERING LIFT AND MOISTURE SO HAVE BEEFED UP POPS THIS AFTERNOON INTO TONIGHT. AS FOR HIGHLIGHTS WILL HAVE SNOW AND BLOWING SNOW ADVISORY OVER THE PLAINS TODAY INTO TONIGHT. ALTHOUGH THERE MIGHT NOT BE ALL THAT MUCH SNOW ACCUMULATION EXPECT GUSTY WINDS AHEAD OF AND ALSO BEHIND THE FRONT TO CAUSE POOR VISIBILITIES AT TIMES. ALSO BASED ON FORECAST WINDS AND TEMPERATURES HAVE EXPANDED THE WIND CHILL ADVISORY FOR TONIGHT AND TUESDAY MORNING TO ALL OF THE PLAINS. LATER TUESDAY INTO WEDNESDAY WEATHER SHOULD BE MUCH QUIETER AS DRY AIR MOVES IN BEHIND THE UPPER TROUGH. WILL LIKELY SEE COLDEST READINGS OF THE SEASON FOR MANY AREAS WEDNESDAY MORNING. HAVE ALSO ADDED SOME PATCHY FOG FOR LATE TUESDAY NIGHT AND WEDNESDAY MORNING. BLANK WEDNESDAY NIGHT THROUGH SATURDAY NIGHT...A MAJOR PATTERN CHANGE WILL COMMENCE DURING THIS PERIOD. HAVE USED A COMBINATION OF THE ECMWF AND CANADIAN MODELS AS THE GFS HAS BROKEN CONTINUITY WITH ITS PREVIOUS RUNS. THE UPPER LEVEL PATTERN WILL FEATURE A RIDGE OF HIGH PRESSURE FOLDING OVER THE NORTHERN ROCKIES AS A LOW DIGS DOWN THE WEST COAST. PRESSURE GRADIENTS IN THE BOUNDARY LAYER WILL FAVOR DOWNSLOPE FLOW. THE ARCTIC AIRMASS IN PLACE AT THE START OF THE PERIOD WILL THEREFORE SCOUR OUT AS A CHINOOK WIND DEVELOPS. FEEL THE PLAINS WILL SCOUR OUT WEDNESDAY NIGHT INTO THURSDAY. THE SOUTHWEST VALLEYS WILL HOLD ON TO THE COLD AIR LONGER...BUT ARE EXPECTED TO BEGIN MIXING OUT THURSDAY NIGHT INTO FRIDAY. BY THE WEEKEND...MOST LOCATIONS CAN EXPECT NEAR NORMAL TEMPERATURES. PRESSURE GRADIENTS ON FRIDAY SHOULD BE RATHER TIGHT...SO A WINDY DAY IS EXPECTED. A NORTHWESTERLY FLOW ALOFT WILL FAVOR SOME SNOW OVER THE MOUNTAINS...OTHERWISE ALL OTHER AREAS WILL REMAIN DRY. SCHAUMANN SUNDAY THROUGH MONDAY...MODEL INCONSISTENCIES DURING THIS PERIOD COMPLICATE THE FORECAST SOMEWHAT. I WENT WITH A COMPROMISE SOLUTION OF A DIRTY UPPER LEVEL RIDGE BUILDING OVER THE PACIFIC NORTHWEST AND WESTERN CANADA. A SERIES OF WEAK DISTURBANCES RIDING OVER THE RIDGE IN A NORTHWESTERLY UPPER AIR FLOW WILL IMPACT THE CWA. THIS RESULTS IN PARTLY TO MOSTLY CLOUDY SKIES WITH ISOLATED TO SCATTERED SNOW SHOWERS OVER THE MOUNTAINS...MAINLY ALONG THE CONTINENTAL DIVIDE. DOWNSLOPE WINDS KEEP THE PLAINS AND LARGER SOUTHWEST VALLEYS MOSTLY DRY. THESE WINDS WILL KEEP TEMPERATURES A FEW DEGREES ABOVE SEASONAL AVERAGES ACROSS THE PLAINS...WHILE ELSEWHERE TEMPERATURES WILL BE A LITTLE BELOW SEASONAL AVERAGES. EK && .AVIATION... UPDATED 1152Z. WEAK CONVERGENCE ALONG A SURFACE FRONT WILL CONTINUE TO PRODUCE POCKETS OF LIGHT SNOW AND MVFR CONDITIONS AROUND KLWT THIS MORNING. STRONG WESTERLY SURFACE WINDS WILL DEVELOP THIS MORNING WEST OF A KHVR TO KLWT LINE. AREAS OF MVFR DUE TO BLOWING SNOW CAN BE EXPECTED AROUND KCTB AND KGTF LATE THIS MORNING AND EARLY THIS AFTERNOON. MEANWHILE...AN ARCTIC COLD FRONT WILL MOVE INTO NORTH CENTRAL MONTANA BY THE MIDDLE OF THE AFTERNOON. THE FRONT WILL THEN CROSS MOST OF CENTRAL MONTANA BY EARLY THIS EVENING...AND MOST OF SOUTHWEST MONTANA BY 12Z TUESDAY. A 2 TO 4 HOUR PERIOD OF STRONG AND GUSTY NORTHERLY WINDS CAN BE EXPECTED AS THE FRONT PASSES. CEILINGS WILL ALSO LOWER WITH LIGHT SNOW DEVELOPING OVER ALL AREAS BEHIND THE FRONT. MVFR WITH LOCAL IFR CONDITIONS CAN BE EXPECTED WITH THE SNOW OVERNIGHT. SCHAUMANN && .PRELIMINARY POINT TEMPS/POPS... GTF 28 -8 -2 -10 / 80 70 0 0 CTB 27 -12 1 -18 / 80 70 0 0 HLN 30 3 9 -15 / 60 70 10 0 BZN 27 2 7 -18 / 40 70 20 0 WEY 16 -8 9 -26 / 50 60 50 10 DLN 27 7 14 -10 / 40 80 20 0 HVR 14 -12 -1 -20 / 70 60 0 0 LWT 28 -6 -2 -15 / 80 80 10 0 && .TFX WATCHES/WARNINGS/ADVISORIES... SNOW AND BLOWING SNOW ADVISORY UNTIL 5 AM MST TUESDAY FOR MTZ009 -MTZ010-MTZ011-MTZ014-MTZ044-MTZ045-MTZ046-MTZ047-MTZ048-MTZ049. WIND CHILL ADVISORY FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY FOR MTZ009-MTZ010-MTZ011-MTZ012-MTZ013-MTZ044-MTZ045- MTZ046-MTZ047-MTZ048-MTZ049-MTZ050-MTZ051. SNOW AND BLOWING SNOW ADVISORY FROM 5 PM THIS AFTERNOON TO 5 AM MST TUESDAY FOR MTZ008-MTZ015-MTZ052-MTZ053-MTZ055. WINTER STORM WARNING UNTIL 5 AM MST TUESDAY FOR MTZ012-MTZ013-MTZ050-MTZ051-MTZ054. && UPDATE...CAMP SHORT TERM...BLANK LONG TERM...SCHAUMANN/EK AVIATION...SCHAUMANN WEATHER.GOV/GREATFALLS
Hazardous weather outlook, Dec 5, 5:03 AM MST, 4 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 503 AM MST MON DEC 5 2005 MTZ014-061215- CENTRAL AND SOUTHERN LEWIS AND CLARK- 503 AM MST MON DEC 5 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT ...SNOW AND BLOWING SNOW ADVISORY UNTIL 5 AM MST TUESDAY... FOR THE FOLLOWING ZONES: CENTRAL AND SOUTHERN LEWIS AND CLARK PLEASE REFER TO GTFWSWTFX FOR MORE DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ009>013-044>051-061215- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE- CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN-FERGUS- 503 AM MST MON DEC 5 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT ...SNOW AND BLOWING SNOW ADVISORY UNTIL 5 AM MST TUESDAY... FOR THE FOLLOWING ZONES: NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE- CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN- FERGUS PLEASE REFER TO GTFWSWTFX FOR MORE DETAILS. ...WIND CHILL ADVISORY 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... FOR THE FOLLOWING ZONES: NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE- CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA- BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN- FERGUS PLEASE REFER TO GTFWSWTFX FOR MORE DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ008-015-052>055-061215- BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 503 AM MST MON DEC 5 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
Nearby
Winter Storm Warnings in Montana, 2005Every winter storm warning in 2005
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.