Alert archive / Nebraska / Blizzard Warnings in 2009
Blizzard Warning 2, NWS Omaha, NE
NWS Omaha, NE issued this blizzard warning at Dec 8, 2009, 12:55 PM CST for 8 counties in Iowa; 30 counties in Nebraska. It took effect at Dec 8, 2009, 9:00 PM CST. It was in force for 9 hr. 7 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 8, 2009, 12:55 PM CST (18:55 UTC)
- In effect from
- Dec 8, 2009, 9:00 PM CST
- Expired
- Dec 9, 2009, 5:42 AM CST
- In force
- 9 hr
- Issued by
- NWS Omaha, NE
All 38 counties
Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE
The radar
The Omaha radar (KOAX), 16 km from the middle of the area, began a volume at 18:55 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 8, 9:03 PM CST | SNOW 8.5 | Tecumseh, NE | 8.5 INCHES OF NEW SNOW SINCE 8 AM. TOTAL SNOW DEPTH 12 INCHES ON THE GROUND. |
| Dec 8, 9:59 PM CST | HEAVY SNOW 12 | Fairbury, NE | ESTIMATED 12 INCHES STORM TOTAL...15 INCHES OF SNOW ON THE GROUND. 4 TO 5 FOOT DRIFTS AROUND BUILDINGS. MOST COUNTY ROADS ARE BLOCKED. |
| Dec 8, 10:00 PM CST | HEAVY SNOW 8 | Norfolk, NE | STORM TOTAL SO FAR. |
| Dec 8, 11:29 PM CST | SNOW 6.9 | Pawnee City, NE | 6.9 INCHES OF NEW SNOW SINCE THIS MORNING. TOTAL SNOW DEPTH 13 INCHES. |
| Dec 8, 11:41 PM CST | SNOW 10 | Columbus, NE | ESTIMATED STORM TOTAL SNOWFALL. DRIFTS AS HIGH AS 5 FEET. COUNTY ROAD CREWS HAVE SUSPENDED CLEANUP OPERATIONS. |
| Dec 8, 11:53 PM CST | HEAVY SNOW 9 | Omaha, NE | 46TH AND FARNAM. DRIFTS TO 2.5 FEET. |
| Dec 9, 3:00 AM CST | HEAVY SNOW 10 | 3 W Pacific Junction, IA | DRIFTS UP TO 4 FEET. 12 INCHES TOTAL ON THE GROUND. WHITEOUT CONDITIONS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 6.9 hours before the alert went out and 16 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
- 602 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 333 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 KOAX 081855 WSWOAX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1255 PM CST TUE DEC 8 2009 ...A DANGEROUS WINTER STORM WILL HIT THE AREA THROUGH WEDNESDAY... .BLIZZARD CONDITIONS ARE EXPECTED TO DEVELOP THIS EVENING AS A VERY POWERFUL WINTER STORM SYSTEM MOVES ACROSS THE PLAINS THROUGH WEDNESDAY. MODERATE SNOW WILL BECOME HEAVY AT TIMES WITH THE HEAVIEST SNOW EXPECTED TO OCCUR THROUGH THIS EVENING. AS THE STORM SYSTEM MOVES THROUGH THE PLAINS...NORTHWEST WINDS WILL INCREASE CREATING BLIZZARD CONDITIONS FROM THIS EVENING THROUGH WEDNESDAY MORNING. IAZ079-080-090-091-NEZ065>068-078-088>093-090300- /O.UPG.KOAX.BZ.A.0002.091209T0000Z-091209T1800Z/ /O.NEW.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ /O.EXT.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ MILLS-MONTGOMERY-FREMONT-PAGE-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- INCLUDING THE CITIES OF...GLENWOOD...RED OAK...SIDNEY... CLARINDA...SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY... CRETE...FAIRBURY...BEATRICE...TECUMSEH...AUBURN...PAWNEE CITY... FALLS CITY 1255 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 9 PM CST THIS EVENING. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: TOTAL SNOWFALL OF 10 TO 14 INCHES IS EXPECTED THROUGH TONIGHT...WITH THE HIGHER AMOUNTS CLOSER TO THE KANSAS BORDER. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ IAZ043-055-056-069-NEZ015-018-030>034-042>045-050>053-090300- /O.UPG.KOAX.BZ.A.0002.091209T0000Z-091209T1800Z/ /O.NEW.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ /O.EXT.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ MONONA-HARRISON-SHELBY-POTTAWATTAMIE-THURSTON-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY- INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN... COUNCIL BLUFFS...PENDER...WAYNE...ALBION...NORFOLK...STANTON... WEST POINT...TEKAMAH...COLUMBUS...SCHUYLER...FREMONT...BLAIR... DAVID CITY...WAHOO...OMAHA...BELLEVUE 1255 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 9 PM CST THIS EVENING. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: TOTAL SNOWFALL OF 9 TO 13 INCHES IS EXPECTED THROUGH TONIGHT...WITH THE HIGHER AMOUNTS CLOSER TO THE KANSAS BORDER. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ NEZ011-012-016-017-090300- /O.UPG.KOAX.BZ.A.0002.091209T0000Z-091209T1800Z/ /O.NEW.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ /O.EXT.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ KNOX-CEDAR-ANTELOPE-PIERCE- INCLUDING THE CITIES OF...BLOOMFIELD...HARTINGTON...NELIGH... PIERCE 1255 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 9 PM CST THIS EVENING. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: TOTAL SNOWFALL OF 6 TO 9 INCHES IS EXPECTED THROUGH TONIGHT...WITH LESSER AMOUNTS TOWARD THE SOUTH DAKOTA BORDER. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON WEDNESDAY WILL RANGE FROM 10 TO 20 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ DERGAN/KERN
4 follow-up statements
000 WWUS43 KOAX 082342 WSWOAX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 542 PM CST TUE DEC 8 2009 ...A DANGEROUS WINTER STORM WILL THROUGH WEDNESDAY... .BLIZZARD CONDITIONS WILL DEVELOP THIS EVENING AS A VERY POWERFUL WINTER STORM SYSTEM MOVES ACROSS THE PLAINS THROUGH WEDNESDAY. MODERATE SNOW WILL BECOME HEAVY AT TIMES WITH THE HEAVIEST SNOW EXPECTED TO OCCUR THROUGH THIS EVENING. AS THE STORM SYSTEM MOVES THROUGH THE PLAINS...NORTHWEST WINDS WILL INCREASE CREATING BLIZZARD CONDITIONS FROM THIS EVENING THROUGH WEDNESDAY MORNING. IAZ079-080-090-091-NEZ065>068-078-088>093-090745- /O.CON.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ /O.CON.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ MILLS-MONTGOMERY-FREMONT-PAGE-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- INCLUDING THE CITIES OF...GLENWOOD...RED OAK...SIDNEY... CLARINDA...SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY... CRETE...FAIRBURY...BEATRICE...TECUMSEH...AUBURN...PAWNEE CITY... FALLS CITY 542 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: THROUGH ABOUT 6 PM...SNOW AMOUNTS HAVE RANGED FROM 6 TO 9 INCHES. AN ADDITIONAL 6 INCHES OF SNOW IS POSSIBLE THROUGH THE NIGHT...BRINGING TOTAL ACCUMULATIONS FROM THIS STORM SYSTEM INTO THE 12 TO 15 INCH RANGE. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON LATE TONIGHT AND WEDNESDAY WILL DROP INTO THE 15 TO 20 BELOW RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ IAZ043-055-056-069-NEZ015-018-030>034-042>045-050>053-090745- /O.CON.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ /O.CON.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ MONONA-HARRISON-SHELBY-POTTAWATTAMIE-THURSTON-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY- INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN... COUNCIL BLUFFS...PENDER...WAYNE...ALBION...NORFOLK...STANTON... WEST POINT...TEKAMAH...COLUMBUS...SCHUYLER...FREMONT...BLAIR... DAVID CITY...WAHOO...OMAHA...BELLEVUE 542 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: SNOW AMOUNTS AS OF 6 PM WERE IN THE 5 TO 8 INCH RANGE WITH THIS STORM SYSTEM. ADDITIONAL AMOUNTS OF 4 TO 6 INCHES WILL PUSH STORM TOTAL SNOW AMOUNTS INTO THE 9 TO 14 INCH RANGE. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON LATE TONIGHT AND WEDNESDAY MORNING WILL DROP TO 15 TO 25 BELOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ NEZ011-012-016-017-090745- /O.CON.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ /O.CON.KOAX.BZ.W.0002.091209T0300Z-091209T1800Z/ KNOX-CEDAR-ANTELOPE-PIERCE- INCLUDING THE CITIES OF...BLOOMFIELD...HARTINGTON...NELIGH... PIERCE 542 PM CST TUE DEC 8 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST WEDNESDAY. * TIMING: MODERATE TO HEAVY SNOW IS EXPECTED TO CONTINUE THROUGH THE OVERNIGHT HOURS. SNOW WILL TAPER OFF BY WEDNESDAY MORNING. * SNOW ACCUMULATIONS: SNOW AMOUNTS THROUGH 6 PM HAVE BEEN IN THE 3 TO 5 INCH RANGE. ADDITIONAL SNOW AMOUNTS OF 3 TO 4 INCHES ARE EXPECTED...BRINGING THE STORM TOTAL SNOW TO 6 TO 9 INCHES. * WINDS/VISIBILITY: NORTHWEST WINDS WILL INCREASE TO 30 MPH WITH GUSTS TO 40 TO 45 MPH THIS EVENING AND EARLY WEDNESDAY. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS THIS EVENING AND TONIGHT. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS ON LATE TONIGHT AND WEDNESDAY MORNING WILL DROP INTO THE 20 TO 30 BELOW RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$
000 WWUS43 KOAX 090328 WSWOAX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 928 PM CST TUE DEC 8 2009 ...A VERY DANGEROUS WINTER STORM WILL CONTINUE TO MOVE THE AREA THROUGH WEDNESDAY MORNING... .BLIZZARD CONDITIONS WILL DEVELOP TONIGHT IN SOME AREAS ACROSS EASTERN NEBRASKA AND WESTERN IOWA...ESPECIALLY IN OPEN RURAL AREAS. A VERY POWERFUL WINTER STORM SYSTEM MOVING ACROSS THE PLAINS WILL CONTINUE TO BRING MODERATE TO OCCASIONALLY HEAVY SNOW TO PORTIONS OF EAST CENTRAL NEBRASKA AND WESTERN IOWA...BUT TAPERING FROM WEST TO EAST BY DAY BREAK WEDNESDAY. WINDS WILL ALSO INCREASE TO 35 TO 45 MPH WHICH WILL CREATE WHITEOUT CONDITIONS IN SOME AREAS. IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-091130- /O.EXP.KOAX.WS.W.0006.000000T0000Z-091209T0300Z/ /O.CON.KOAX.BZ.W.0002.000000T0000Z-091209T1800Z/ MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN... COUNCIL BLUFFS...GLENWOOD...RED OAK...SIDNEY...CLARINDA... BLOOMFIELD...HARTINGTON...PENDER...NELIGH...PIERCE...WAYNE... ALBION...NORFOLK...STANTON...WEST POINT...TEKAMAH...COLUMBUS... SCHUYLER...FREMONT...BLAIR...DAVID CITY...WAHOO...OMAHA... BELLEVUE...SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY... CRETE...FAIRBURY...BEATRICE...TECUMSEH...AUBURN...PAWNEE CITY... FALLS CITY 928 PM CST TUE DEC 8 2009 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY... ...WINTER STORM WARNING HAS EXPIRED... THE WINTER STORM WARNING IS NO LONGER IN EFFECT. A BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY. * SNOW ACCUMULATIONS: MODERATE TO HEAVY SNOW WILL CONTINUE TO MOVE THROUGH PARTS OF EAST CENTRAL NEBRASKA AND WESTERN IOWA OVERNIGHT. STORM TOTAL SNOW AMOUNTS WILL RANGE AROUND 6 INCHES ACROSS NORTHEAST NEBRASKA...TO 9 TO 14 INCHES ACROSS PARTS OF SOUTHEAST NEBRASKA AND SOUTHWEST IOWA. * WIND AND VISIBILITY: NORTHWEST WINDS WILL CONTINUE TO INCREASE TO 35 MPH WITH GUSTS TO 40 TO 45 MPH LATE TONIGHT AND WEDNESDAY MORNING. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY ESPECIALLY IN RURAL OPEN AREAS. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS HEAVY SNOW COMBINED WITH VERY STRONG NORTHWEST WINDS LEADS TO WHITEOUT CONDITIONS TONIGHT AND EARLY WEDNESDAY MORNING. THIS COMBINATION WILL CREATE SIGNIFICANT BLOWING AND DRIFTING SNOW. HIGH SNOW DRIFTS ARE POSSIBLE WHICH COULD LEAD TO ROAD CLOSURES...AND SOME LOCAL ROAD CREWS HAVE SUSPENDED CLEANUP OPERATIONS UNTIL THE STORM HAS ENDED. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DUE TO THE VERY STRONG WINDS. WIND CHILL READINGS LATE TONIGHT AND WEDNESDAY MORNING WILL DROP TO 15 TO 25 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE IMMINENT. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$
000 WWUS43 KOAX 090921 WSWOAX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 321 AM CST WED DEC 9 2009 ...A VERY DANGEROUS WINTER STORM WILL CONTINUE TO MOVE THE AREA THROUGH WEDNESDAY MORNING... .BLIZZARD-LIKE CONDITIONS CONTINUE THIS MORNING ACROSS EASTERN NEBRASKA AND WESTERN IOWA...ESPECIALLY IN OPEN RURAL AREAS. NORTHWEST WINDS GUSTING UP TO 40 TO 50 MPH ARE CREATING GROUND BLIZZARD CONDITIONS...WITH VISIBILITY OF A QUARTER MILE OR LESS...PARTICULARLY WHEN TRAVELING ON ROADWAYS IN OPEN AREAS. LITTLE ADDITIONAL SNOWFALL IS EXPECTED...BUT THE STRONG WINDS AND FRESH SNOWFALL WILL CAUSE BLOWING AND DRIFTING SNOW CONDITIONS THROUGH THE MORNING. IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-091800- /O.CON.KOAX.BZ.W.0002.000000T0000Z-091209T1800Z/ MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN... COUNCIL BLUFFS...GLENWOOD...RED OAK...SIDNEY...CLARINDA... BLOOMFIELD...HARTINGTON...PENDER...NELIGH...PIERCE...WAYNE... ALBION...NORFOLK...STANTON...WEST POINT...TEKAMAH...COLUMBUS... SCHUYLER...FREMONT...BLAIR...DAVID CITY...WAHOO...OMAHA... BELLEVUE...SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY... CRETE...FAIRBURY...BEATRICE...TECUMSEH...AUBURN...PAWNEE CITY... FALLS CITY 321 AM CST WED DEC 9 2009 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... A BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY. * SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATION WILL BE MINIMAL...WITH 6 TO 12 INCHES OF STORM TOTAL SNOWFALL REPORTED ACROSS THE AREA. * WIND AND VISIBILITY: NORTHWEST WINDS AROUND 30 TO 35 MPH WITH GUSTS TO 40 TO 50 MPH WILL CONTINUE INTO THE MORNING HOURS. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE LIKELY...ESPECIALLY IN RURAL OPEN AREAS. STRONG WINDS WILL ALSO CREATE WIND CHILLS OF 10 TO 20 BELOW ZERO THIS MORNING. VISIBILITIES WILL BEGIN TO IMPROVE BY LATE MORNING AS WIND SPEEDS DECREASE. * IMPACTS: TRAVEL WILL BE EXTREMELY DANGEROUS AS WHITEOUT CONDITIONS CONTINUE THIS MORNING. SIGNIFICANT BLOWING AND DRIFTING SNOW IS OCCURRING...WITH DRIFTS OF 2 TO 4 FEET ACROSS ROADWAYS. ROAD CLEAN-UP WILL BE HAMPERED BY THE CONTINUED BLOWING AND DRIFTING SNOW THIS MORNING. THOSE WHO MUST VENTURE OUTSIDE SHOULD PREPARE FOR DANGEROUSLY COLD WEATHER AS WELL AS DANGEROUS TRAVEL CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE IMMINENT. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ MAYES
000 WWUS43 KOAX 091142 WSWOAX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 542 AM CST WED DEC 9 2009 ...BLIZZARD CONDITIONS ARE ENDING...BUT BLOWING AND DRIFTING SNOW CONTINUES... .AS THE WINTER STORM SYSTEM MOVES AWAY TO THE EAST...ACCUMULATING SNOW IS ENDING ACROSS THE AREA. NORTHWEST WINDS CONTINUE TO GUST TO AROUND 35 TO 45 MPH...BUT WIND SPEEDS WILL DECREASE THROUGH THE DAY. THE STRONG NORTHWEST WINDS WILL CONTINUE TO CAUSE BLOWING AND DRIFTING OF THE FRESHLY FALLEN SNOW THROUGHOUT THE DAY...CREATING TREACHEROUS TRAVEL CONDITIONS. WIND CHILL READINGS OF 10 TO 20 BELOW ZERO ARE ALSO EXPECTED TO CONTINUE THROUGHOUT THE DAY. IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-091945- /O.CAN.KOAX.BZ.W.0002.000000T0000Z-091209T1800Z/ /O.NEW.KOAX.WW.Y.0017.091209T1142Z-091209T2200Z/ MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN... COUNCIL BLUFFS...GLENWOOD...RED OAK...SIDNEY...CLARINDA... BLOOMFIELD...HARTINGTON...PENDER...NELIGH...PIERCE...WAYNE... ALBION...NORFOLK...STANTON...WEST POINT...TEKAMAH...COLUMBUS... SCHUYLER...FREMONT...BLAIR...DAVID CITY...WAHOO...OMAHA... BELLEVUE...SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY... CRETE...FAIRBURY...BEATRICE...TECUMSEH...AUBURN...PAWNEE CITY... FALLS CITY 542 AM CST WED DEC 9 2009 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM CST THIS AFTERNOON... ...BLIZZARD WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS...WHICH IS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON. THE BLIZZARD WARNING HAS BEEN CANCELLED. * SNOW ACCUMULATIONS: LITTLE OR NO ADDITIONAL SNOW ACCUMULATION IS EXPECTED. * WIND AND VISIBILITY: NORTHWEST WINDS GUSTING TO AROUND 35 TO 45 MPH WILL CONTINUE INTO THE MORNING HOURS...DECREASING TO AROUND 25 TO 35 MPH THIS AFTERNOON. THIS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW...ESPECIALLY IN OPEN AREAS. VISIBILITIES MAY ALSO BE REDUCED TO A MILE OR LESS IN AREAS. STRONG WINDS WILL ALSO CREATE WIND CHILLS OF 10 TO 20 BELOW ZERO THIS MORNING. * IMPACTS: TRAVEL WILL REMAIN TREACHEROUS TODAY. SIGNIFICANT BLOWING AND DRIFTING SNOW IS OCCURRING...WITH DRIFTS OF 2 TO 4 FEET ACROSS ROADWAYS. ROAD CLEAN-UP WILL BE HAMPERED BY THE CONTINUED BLOWING AND DRIFTING SNOW THIS MORNING. THOSE WHO MUST VENTURE OUTSIDE SHOULD PREPARE FOR DANGEROUSLY COLD WEATHER AS WELL AS POOR AND RAPIDLY CHANGING ROAD CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ MAYES
What forecasters said that day
The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before this blizzard warning went out at Dec 8, 10:17 AM CST, 2 hours 38 minutes earlier.
Area forecast discussion, Dec 8, 10:17 AM CST, 2 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1017 AM CST TUE DEC 8 2009
.UPDATE...
ONGOING WINTER STORM CONTINUES AND PREVIOUS FORECAST LOOKS TO BE
IN GREAT SHAPE FOR TODAY.
&&
.DISCUSSION...
WATER VAPOR IMAGERY FEATURES POTENT MID/UPPER TROUGH TRANSITIONING
EAST ACROSS THE WESTERN CONUS WITH 100-120M HEIGHT FALLS OVER THE
FOUR CORNERS REGION OFF THE 12Z 500MB UPPER AIR ANALYSIS. IN
ADDITION...12Z UPPER AIR ANALYSIS SHOWED A 140KT 300MB JET MAX ROUNDING
THE BASE OF THE TROUGH. AT 850MB...DEWPOINTS AROUND 10-13C WERE
MOVING UP FROM THE GULF ACROSS ERN TX INTO EASTERN
OKLAHOMA/ARKANSAS PROVIDING VERY GOOD MOISTURE TO WORK INTO THIS SYSTEM.
REGIONAL RADAR MOSAICS ALONG WITH SFC OBS INDICATE BANDS OF
MODERATE SNOW PUSHING NORTHEAST OUT OF KANSAS AND ACROSS MUCH OF
SOUTHERN NEBRASKA. LATEST 15Z SUBJECTIVE SFC ANALYSIS SHOWS LOW
OVER WEST-CENTRAL COLORADO WITH BEST PRESSURE FALLS ACROSS OK/KS
WHERE SFC LOW IS EXPECTED TO QUICKLY TRANSITION TOWARD THRU THE
DAY.
SHORT TERM 12Z NAM/RUC IN ACCORDANCE WITH 09Z SREF GUIDANCE
IMPLIES CONTINUED SNOW ACROSS THE ENTIRE CWA AS 850MB WAA
CONTINUES WITH STRONG ISENTROPIC LIFT BEST AROUND THE 290K SFC.
MODELS SUGGEST AN INCREASINGLY FAVORABLE COMBINATION OF LIFT
COINCIDENT WITH A SATURATED DENDRITIC LAYER ROUGHLY BETWEEN
650-500MB ACROSS SOUTHEAST NEBRASKA THIS AFTERNOON. THIS SUGGESTS
THAT MODERATE TO HEAVY SNOW WILL BE POSSIBLE THIS AFTERNOON WITH
PERHAPS 1 IN/HR RATES QUITE LIKELY...ESPECIALLY SOUTH OF I-80
CORRIDOR. TO THE NORTH OF THIS...CONTINUED LIGHT TO MODERATE SNOW
WL CONTINUE IN BROAD AREA OF ISENTROPIC UPGLIDE THROUGHOUT THE
EARLY AFTERNOON. VISIBILITY RESTRICTIONS LATE THIS MORNING AND
DURING THE EARLY AFTERNOON WL MAINLY BE DUE TO FALLING SNOW AS SFC
WINDS OF AROUND 10KTS SHOULD NOT CAUSE TOO MUCH TROUBLE WITH
BLOWING AND DRIFTING...YET. WIND WILL BE A PROBLEM LATER THIS
AFTERNOON AND CERTAINLY THIS EVENING AS THEY INCREASE TO NEAR 30
MPH THIS EVENING WITH GUSTS TO 40 MPH AS THE SFC LOW PASSES TO THE
SOUTHEAST OF THE AREA.
FORECAST STILL ON TRACK WITH UPPER/MID LEVEL TROUGH AXIS MOVING
INTO THE CENTRAL PLAINS BY 00Z WED WHILE SFC LOW RAPIDLY MOVES
ACROSS KS/OK AND INTO MO BY THIS SAME TIME. BLIZZARD WATCH IS
CURRENTLY IN EFFECT FOR THIS EVENING THRU WED MORNING AND WL MAKE
A DECISION ON WHAT TO DO WITH THIS HEADLINE THIS AFTERNOON AS WE
CONTINUE TO ANALYZE NEW MODEL DATA.
KERN
&&
.PREV DISCUSSION... /ISSUED 421 AM CST TUE DEC 8 2009/
DISCUSSION...
IMPENDING WINTER STORM MAIN FORECAST CHALLENGE AND FOCUS THIS CYCLE.
POST 06Z WATER VAPOR STLT IMAGERY SHOWED STRONG DRYING OR
SUBSIDENCE ALONG BASE OF SW U.S. UPPER TROUGH PUNCHING ACROSS SRN
AZ WHICH EARLIER KICKED OFF A FEW LTG STRIKES NEAR PHX. SYSTEM HAD
100 M HGT FALLS AT 500 MB LAST EVENING AT VBG. 00Z GFS/NAM/ECMWF
SIMILARLY FORECAST THIS HGT FALL CENTER TO TRACK FROM SRN KS VCNTY
AT 00Z WED INTO IL/IN REGION BY 12Z WED WITH FALLS FCST TO
INCREASE FM 150-180 M TO 250 M OR MORE DURING THAT TIME. THIS IN
TURN WILL REALLY TIGHTEN UP SFC GRADIENT WHICH WILL HAVE A LARGE
TEMPERATURE GRADIENT TO WORK WITH NOTED BY CURRENT TEMPS BELOW
ZERO OVR NW WY INTO WRN ND AND 40S OVR AR. BESIDES HGT FALL TRACK
00Z MODELS HAD GENERALLY VERY GOOD AGREEMENT IN 700/850 MB TRACK
AND QPF PLACEMENT. TRACK OF 850 MB/SFC LOW AND CLIMATOLOGICALLY
FAVORED 1000-500 MB THICKNESS WOULD INDICATE HIGHEST STORM TOTALS
FROM SYSTEM WOULD BE MOSTLY S OF THE I80 CORRIDOR. HOWEVER...WIND
FIELD FORECAST FM 3 MODELS AT 700 MB SHOWED A SECONDARY CIRC
CENTER FARTHER N THAN PROGD 700 MB LOW...POSSIBLY AIDING IN HIGHER
QPF TOTALS FARTHER NW. CROSS SECTIONS FM NW TO SE INDICATED DECENT
LIFT THRU AROUND 00Z WED NW AND THRU AROUND 06Z SE BUT THETA SFCS
WEREN/T THAT SLOPED INDICATING LTL CSI. ALSO WITH EQUIVALENT POT
VORT FCST TO REMAIN ABOVE ZERO AND BETTER TROWAL SEEMINGLY SETTING UP
FARTHER E. SO TO SUM IT UP...NEGATIVES INCLUDED HGT FALLS/SYSTEM
CLOSING OFF AND SFC LOW DEEPENING ALL APPEAR TO BE BETTER TO OUR E
WITH PCPN AMOUNTS NOT REALLY ENHANCED BY UPRIGHT OR SLANTWISE
INSTABILITY...WITH POSITIVES INCLUDING PROLONGED LIFT WHICH WILL
BE REALLY EFFICIENT IN PRODUCING SNOW AS MOST TEMPS IN 850-700 MB
LAYER WERE AND WL REMAIN IN DENDRITIC ZONE.
USING A MID TO UPPER TEEN LIQUID TO SNOW RATIO AND MODEL QPF
WOULD PLACE 10-18 INCHES OF NEW SNOW...AFT 12Z TUE...OVER MOST OF THE
CWA. HOWEVER...FEEL MODELS MAY BE OVERDOING QPF A BIT GIVEN LACK
OF TIGHTER SFC/850 MB CIRCULATION WON/T BE AVAILABLE TO PULL IN
BETTER MOISTURE UNTIL SYSTEM BEGINS MOVING NEAR ERN FRINGES OF THE
CWA. USING FCST SPECIFIC HUMIDITY VALUES OF 3-4 G/KG SE AND 1-2 NW AND
ACCOUNTING FOR LIFT PD WOULD PUT NEW...POST 12Z...SNOW AMOUNTS OF
AROUND 4 INCHES FAR NW TO 10-12 INCHES ACROSS FAR SE AND GENERALLY
WENT WITH THOSE NUMBERS. WINDS START INCREASING NW TO SE LATER
THIS AFTN BUT ESPECIALLY AS SNOW BEGINS MOVG OFF TO THE EAST
TONIGHT. WITH FRESH/POWDERY SNOW VSBYS WILL BE GREATLY REDUCED AND
MAY APPROACH OR REACH BLIZZARD CRITERIA. HOWEVER...WITH 850-925 MB
WINDS FORECAST TO BE BELOW 50 KTS OVR THE CWA...DON/T FEEL
CONFIDENT ENOUGH IN PROLONGED BLIZZARD CONDITIONS TO UPGRADE
BLIZZARD WATCH TO WARNING ATTM. WITH FORECAST SNOW AMOUNTS AND
WIND THOUGH SEE NO REASON TO CHANGE WINTER STORM WARNING HEADLINES
ALL ZONES FROM TODAY THRU WED MORNING...ALTHOUGH CONDITIONS ACROSS
THE N PROBABLY WON/T DETERIORATE UNTIL LATER THIS AFTN.
WITH FRESH SNOW AND GIVEN UPSTREAM TEMPS TRIMMED TEMPS BACK A BIT
NW WED MORNING AND MOST AREAS THU/FRI MORNING. ATTM APPEARS WINDS
WILL DECOUPLE THE MOST FRI MORNING WITH MODELS STILL FORECASTING A
BIT OF A WIND THU MORNING BUT WITH 850 MB TEMPS COLDER ATTM.
OTHER THAN ABOVE MENTIONED TEMP ADJUSTMENTS NO CHANGES MADE TO
REST OF FORECAST.
CHERMOK
AVIATION...
TAF SITES KOFK/KOMA/KLNK
06Z TAFS
AFTER INTERMITTENT MVFR TO IFR CONDITIONS THIS MRNG AT ALL
SITES...VIS/CIGS WILL DETERIORATE TO IFR/LIFR IN THE LATE MRNG...AND
WILL REMAIN RESTRICTED FOR THE REST OF THE TAF CYCLE. WINDS
INITIALLY FROM THE EAST AT AROUND 5-10 KT WILL VEER TO NERLY BY 00Z
AND TO NWLY BY AROUND 06Z...WITH SPEEDS INCREASING THROUGH THE
EVENING TO AROUND 15-25KT GUSTING TO AROUND 35KT.
MAYES
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...WINTER STORM WARNING UNTIL NOON CST WEDNESDAY FOR NEZ011-012-
015>018-030>034-042>045-050>053-065>068-078-088>093.
BLIZZARD WATCH FROM 6 PM CST THIS EVENING THROUGH WEDNESDAY
MORNING FOR NEZ011-012-015>018-030>034-042>045-050>053-
065>068-078-088>093.
IA...WINTER STORM WARNING UNTIL NOON CST WEDNESDAY FOR IAZ043-055-056-
069-079-080-090-091.
BLIZZARD WATCH FROM 6 PM CST THIS EVENING THROUGH WEDNESDAY
MORNING FOR IAZ043-055-056-069-079-080-090-091.
&&
KERNHazardous weather outlook, Dec 8, 12:04 PM CST, 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1204 PM CST TUE DEC 8 2009 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-090815- MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- 1204 PM CST TUE DEC 8 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...THIS AFTERNOON AND TONIGHT BLIZZARD CONDITIONS ARE EXPECTED TO DEVELOP THIS EVENING AND CONTINUE OVERNIGHT OVER ALL OF EASTERN NEBRASKA AND SOUTHWEST IOWA. THIS WILL CREATE EXTREMELY HAZARDOUS CONDITIONS. SNOW WILL INCREASE IN INTENSITY ACROSS THE AREA THIS AFTERNOON WITH SOME ONE INCH PER HOUR SNOWFALL ACCUMULATIONS POSSIBLE SOUTH OF INTERSTATE 80. SNOWFALL AMOUNTS OF 6 TO 10 INCHES ARE EXPECTED ACROSS THE REGION...WITH SOME HEAVIER AMOUNTS CLOSER TO THE KANSAS BORDER AND LIGHTER AMOUNTS CLOSER TO THE SOUTH DAKOTA BORDER. WINDS WILL BEGIN TO INCREASE LATE THIS AFTERNOON AND WILL CREATE SIGNIFICANT BLOWING AND DRIFTING SNOW THIS EVENING AND OVERNIGHT TO CREATE BLIZZARD CONDITIONS. TRAVEL WILL BE EXTREMELY HAZARDOUS. TEMPERATURES WILL FALL TONIGHT INTO THE SINGLE DIGITS BELOW TO SINGLE DIGITS ABOVE ZERO. THE COMBINATION OF COLD TEMPERATURES AND STRONG WINDS WILL CREATE WIND CHILLS OF 15 TO 25 BELOW ZERO. THE COMBINATION OF HEAVY SNOW...BLOWING SNOW...AND COLD WIND CHILLS WILL CREATE TREACHEROUS OUTDOORS CONDITIONS THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE SNOW IS EXPECTED TO TAPER OFF AROUND SUNRISE ON WEDNESDAY MORNING...HOWEVER BLOWING SNOW WILL CONTINUE AS STRONG NORTHWEST WINDS LINGER. ALSO...WIND CHILL READINGS OF 10 TO 20 BELOW ZERO WILL REMAIN POSSIBLE THROUGH THE DAY. WIND CHILLS ARE EXPECTED TO FALL TO 15 TO 25 BELOW ZERO AGAIN ON WEDNESDAY NIGHT AS TEMPERATURES FALL BELOW ZERO...EVEN THOUGH WIND SPEEDS WILL DECREASE TO 5 TO 15 MPH. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS IN EXCESS OF 2 INCHES...INCLUDING STORM TOTAL SNOW AFTER SNOWFALL HAS ENDED...TO THE NATIONAL WEATHER SERVICE IN OMAHA. KERN
In the hours before
Local storm report, Dec 8, 10:23 AM CST, 2 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1023 AM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1021 AM SNOW FAIRBURY 40.14N 97.18W
12/08/2009 M4.5 INCH JEFFERSON NE EMERGENCY MNGR
NEW SNOW SINCE MONDAY EVENING. SOME BLOWING SNOW ALSO
REPORTED...WITH MODERATE SNOW OCCURRING.
&&
VDEWALDLocal storm report, Dec 8, 11:00 AM CST, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1100 AM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 AM SNOW 6 W NORFOLK 42.03N 97.54W
12/08/2009 E4.0 INCH MADISON NE TRAINED SPOTTER
ABOUT 4 INCHES OF NEW SNOW SINCE LATE LAST NIGHT.
&&
VDEWALDLocal storm report, Dec 8, 11:46 AM CST, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1146 AM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1144 AM SNOW LITTLE SIOUX 41.81N 96.03W
12/08/2009 M5.0 INCH HARRISON IA CO-OP OBSERVER
2.8 INCHES OF NEW SNOW SINCE MIDNIGHT. 5 INCHES OF SNOW
ON THE GROUND.
&&
VDEWALDLocal storm report, Dec 8, 12:03 PM CST, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1203 PM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM SNOW FREMONT 41.44N 96.49W
12/08/2009 M3.5 INCH DODGE NE TRAINED SPOTTER
3.5 INCHES OF NEW SNOW SINCE YESTERDAY EVENING. 2.5
INCHES SINCE 7 AM.
1200 PM SNOW VALLEY 41.31N 96.35W
12/08/2009 M5.5 INCH DOUGLAS NE OFFICIAL NWS OBS
2 INCHES OF NEW SNOW SINCE 6 AM. 5.5 INCHES SNOW DEPTH.
&&
VDEWALDLocal storm report, Dec 8, 12:06 PM CST, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1206 PM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM SNOW 4 W NORFOLK 42.03N 97.50W
12/08/2009 M5.0 INCH MADISON NE CO-OP OBSERVER
2 INCHES SINCE 6 AM. 5 INCHES SNOW DEPTH.
1200 PM SNOW OMAHA 41.26N 96.01W
12/08/2009 M5.0 INCH DOUGLAS NE OFFICIAL NWS OBS
AT OMAHA EPPLEY. 1.9 INCHES SINCE 6 AM. 5 INCHES SNOW
DEPTH.
&&
VDEWALDLocal storm report, Dec 8, 12:44 PM CST, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1244 PM CST TUE DEC 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1243 PM SNOW RISING CITY 41.20N 97.30W
12/08/2009 M5.0 INCH BUTLER NE TRAINED SPOTTER
3 INCHES OF NEW SNOW SINCE YESTERDAY EVENING. 5 INCHES
SNOW DEPTH.
&&
VDEWALDNearby
Blizzard Warnings in Nebraska, 2009Blizzard Warnings in Iowa, 2009Every blizzard warning in 2009
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.