Alert archive / Iowa / Wind Chill Warnings in 2013
Wind Chill Warning 1, NWS Des Moines, IA
NWS Des Moines, IA issued this wind chill warning at Jan 20, 2013, 3:38 AM CST for 20 counties in Iowa. It took effect at Jan 20, 2013, 6:00 PM CST. It was in force for 18 hr. 6 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
- Jan 20, 2013, 3:38 AM CST (09:38 UTC)
- In effect from
- Jan 20, 2013, 6:00 PM CST
- Expired
- Jan 21, 2013, 12:00 PM CST
- In force
- 18 hr
- Issued by
- NWS Des Moines, IA
Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 118 km from the middle of the area, began a volume at 09:36 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 |
|---|---|---|---|
| Jan 21, 7:00 AM CST | SNOW 0.5 | 1 Nw Webster City, IA | 24 HOUR STORM TOTAL SNOWFALL |
| Jan 21, 7:00 AM CST | SNOW 0.5 | Webster City, IA | 24 HOUR STORM TOTAL SNOWFALL |
| Jan 21, 7:00 AM CST | SNOW 1 | 2 Ene Fort Dodge, IA | 24 HOUR STORM TOTAL SNOWFALL |
| Jan 21, 7:00 AM CST | SNOW 1 | Nnw Fort Dodge, IA | 24 HOUR STORM TOTAL SNOWFALL |
| Jan 21, 7:00 AM CST | SNOW 1 | Rockwell City, IA | 24 HOUR STORM TOTAL SNOWFALL |
| Jan 21, 7:00 AM CST | SNOW 2 | Sac City, IA | 24 HOUR STORM TOTAL SNOWFALL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.6 hours before the alert went out and 229 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
- 1026 m above ground
- 0-6 km bulk shear
- 95 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
559 WWUS43 KDMX 200938 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 338 AM CST SUN JAN 20 2013 ...DANGEROUSLY COLD WIND CHILLS... .A REINFORCING SHOT OF ARCTIC AIR WILL PUSH INTO THE STATE TODAY. THIS WILL ALLOW FOR VERY COLD TEMPERATURES AND GUSTY NORTHWEST WINDS ACROSS THE AREA TONIGHT. THE COMBINATION OF THE COLD TEMPERATURES AND GUSTY WINDS WILL LEAD TO BITTERLY COLD CONDITIONS AND DANGEROUSLY COLD WIND CHILLS TONIGHT INTO MONDAY MORNING. IAZ004>007-015>017-023>028-033>039-201800- /O.NEW.KDMX.WC.W.0001.130121T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 338 AM CST SUN JAN 20 2013 ...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON CST MONDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST MONDAY. * TIMING...DANGEROUSLY COLD WIND CHILLS ARE EXPECTED TONIGHT INTO MONDAY MORNING. * WINDS AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 25 BELOW TO 35 BELOW DUE TO THE COMBINATION OF BITTERLY COLD TEMPERATURES AND GUSTY NORTHWEST WINDS OF 15 TO 25 MPH. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ MJB
8 follow-up statements
436 WWUS43 KDMX 201730 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1130 AM CST SUN JAN 20 2013 ...DANGEROUSLY COLD WIND CHILLS... .A REINFORCING SHOT OF ARCTIC AIR WILL PUSH INTO THE STATE LATER TODAY. THIS WILL RESULT IN VERY COLD TEMPERATURES AND GUSTY NORTHWEST WINDS ACROSS THE AREA TONIGHT. THESE TWO FACTORS WILL LEAD TO DANGEROUSLY COLD WIND CHILLS TONIGHT INTO MONDAY MORNING. IAZ004>007-015>017-023>028-033>039-210130- /O.CON.KDMX.WC.W.0001.130121T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 1130 AM CST SUN JAN 20 2013 ...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST MONDAY... * TIMING...DANGEROUSLY COLD WIND CHILLS ARE EXPECTED TONIGHT INTO MONDAY MORNING. * WINDS AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 25 BELOW TO 35 BELOW DUE TO THE COMBINATION OF BITTERLY COLD TEMPERATURES AND GUSTY NORTHWEST WINDS OF 15 TO 25 MPH. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ KS
174 WWUS43 KDMX 202154 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 354 PM CST SUN JAN 20 2013 ...DANGEROUSLY COLD WIND CHILL TEMPERATURES ARE EXPECTED TONIGHT... .A REINFORCING SHOT OF ARCTIC AIR WILL PUSH INTO THE STATE TONIGHT ON AN INCREASING NORTHWEST WIND. A GUSTY NORTHWEST WIND WILL INCREASE TO 15 TO 25 MPH WITH GUSTS TO 30 MPH. THE WIND MAY BE LOCALLY STRONGER. TEMPERATURES ARE EXPECTED TO PLUMMET TO AROUND 10 TO 15 BELOW NORTH TO BETWEEN ZERO AND 5 BELOW ALONG THE INTERSTATE 80 CORRIDOR. THE COMBINATION OF THE BITTER COLD AND THE BLUSTERY WIND HIS WILL RESULT IN DANGEROUSLY COLD WIND CHILLS TONIGHT INTO MONDAY MORNING. IAZ004>007-015>017-023>028-033>039-210600- /O.CON.KDMX.WC.W.0001.130121T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 354 PM CST SUN JAN 20 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 25 BELOW TO 35 BELOW DUE TO THE COMBINATION OF BITTERLY COLD TEMPERATURES AROUND 10 BELOW AND A GUSTY NORTHWEST WIND OF 15 TO 30 MPH. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-210600- /O.NEW.KDMX.WC.Y.0001.130121T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 354 PM CST SUN JAN 20 2013 ...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST MONDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST MONDAY. * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 20 BELOW TO 25 BELOW DUE TO THE COMBINATION OF BITTERLY COLD TEMPERATURES FROM ZERO TO 5 BELOW AND A GUSTY NORTHWEST WIND OF 15 TO 25 MPH. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ FAB
772 WWUS43 KDMX 210249 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 849 PM CST SUN JAN 20 2013 ...DANGEROUSLY COLD WIND CHILLS EXPECTED TONIGHT... .A REINFORCING SHOT OF ARCTIC AIR WILL PUSH INTO THE STATE TONIGHT ON INCREASING NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS TO NEAR 30 MPH. TEMPERATURES ARE EXPECTED TO PLUMMET TO 10 TO 15 BELOW NORTH TO BETWEEN ZERO AND 5 BELOW ALONG THE INTERSTATE 80 CORRIDOR BY MORNING. THE COMBINATION OF THE BITTER COLD AND THE WIND WILL RESULT IN DANGEROUSLY COLD WIND CHILLS OVERNIGHT AND ALL OF MONDAY MORNING. IAZ004>007-015>017-023>028-033>039-211100- /O.CON.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 849 PM CST SUN JAN 20 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 25 BELOW TO 35 BELOW ZERO AFTER MIDNIGHT AND REMAIN AT THESE LEVELS FOR ALL OF MONDAY MORNING. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. THE ELDERLY AND PERSONS WITH PRE EXISTING HEALTH PROBLEMS ARE PARTICULARLY SUSCEPTIBLE TO EXTREME COLD AND ITS DANGEROUS EFFECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-211100- /O.CON.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 849 PM CST SUN JAN 20 2013 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 20 BELOW TO 25 BELOW AFTER MIDNIGHT AND REMAIN AT THESE LEVELS FOR ALL OF MONDAY MORNING. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ REV
597 WWUS43 KDMX 210601 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1201 AM CST MON JAN 21 2013 ...DANGEROUSLY COLD WIND CHILLS EXPECTED TONIGHT... .A REINFORCING SHOT OF ARCTIC AIR WILL PUSH INTO THE STATE TONIGHT ON INCREASING NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS TO NEAR 30 MPH. TEMPERATURES ARE EXPECTED TO PLUMMET TO 10 TO 15 BELOW NORTH TO BETWEEN ZERO AND 5 BELOW ALONG THE INTERSTATE 80 CORRIDOR BY MORNING. THE COMBINATION OF THE BITTER COLD AND THE WIND WILL RESULT IN DANGEROUSLY COLD WIND CHILLS OVERNIGHT AND ALL OF MONDAY MORNING. IAZ004>007-015>017-023>028-033>039-211415- /O.CON.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 1201 AM CST MON JAN 21 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 25 BELOW TO 35 BELOW ZERO AFTER MIDNIGHT AND REMAIN AT THESE LEVELS FOR ALL OF MONDAY MORNING. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. THE ELDERLY AND PERSONS WITH PRE EXISTING HEALTH PROBLEMS ARE PARTICULARLY SUSCEPTIBLE TO EXTREME COLD AND ITS DANGEROUS EFFECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-211415- /O.CON.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 1201 AM CST MON JAN 21 2013 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 20 BELOW TO 25 BELOW AFTER MIDNIGHT AND REMAIN AT THESE LEVELS FOR ALL OF MONDAY MORNING. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ REV
103 WWUS43 KDMX 210948 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 348 AM CST MON JAN 21 2013 ...DANGEROUSLY COLD WIND CHILLS WILL CONTINUE THROUGH THIS MORNING... .A REINFORCING SHOT OF ARCTIC AIR IS DROPPING INTO THE STATE EARLY THIS MORNING. INCREASING NORTHWEST WINDS OF 15 TO 25 MPH COMBINED WITH TEMPERATURES FALLING DOWN TO 10 TO 15 BELOW NORTH AND ZERO TO 5 BELOW OVER CENTRAL IOWA WILL CREATE DANGEROUS WIND CHILLS. IAZ004>007-015>017-023>028-033>039-211800- /O.CON.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 348 AM CST MON JAN 21 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL CONTINUE TO DROP TO 25 BELOW TO 35 BELOW ZERO WITH LITTLE IMPROVEMENT EXPECTED THROUGH THE MORNING HOURS. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH ARE POSSIBLE IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. THE ELDERLY AND PERSONS WITH PRE EXISTING HEALTH PROBLEMS ARE PARTICULARLY SUSCEPTIBLE TO EXTREME COLD AND ITS DANGEROUS EFFECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-211800- /O.CON.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 348 AM CST MON JAN 21 2013 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...WIND CHILLS WILL DROP TO 20 BELOW TO 25 BELOW WITH LITTLE IMPROVEMENT OCCURRING THROUGH THE MORNING HOURS. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
763 WWUS43 KDMX 211248 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 648 AM CST MON JAN 21 2013 ...DANGEROUSLY COLD WIND CHILLS WILL CONTINUE THIS MORNING... .GUSTY NORTHWEST WINDS WILL CONTINUE TO BRING ARCTIC AIR INTO IOWA THIS MORNING. THE WINDS COMBINED WITH TEMPERATURES FALLING DOWN TO 10 TO 15 BELOW NORTH AND ZERO TO 5 BELOW OVER CENTRAL IOWA ARE CREATING DANGEROUS WIND CHILL VALUES. IAZ004>007-015>017-023>028-033>039-211800- /O.CON.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 648 AM CST MON JAN 21 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...NORTHWEST WINDS OF 15 TO 25 MPH WILL CREATE WIND CHILLS OF 25 BELOW TO 35 BELOW ZERO. THESE VALUES WILL REMAIN THROUGH MID MORNING. SLOW IMPROVEMENT WILL BEGIN AFTER 10 AM. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH ARE POSSIBLE IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. THE ELDERLY AND PERSONS WITH PRE EXISTING HEALTH PROBLEMS ARE PARTICULARLY SUSCEPTIBLE TO EXTREME COLD AND ITS DANGEROUS EFFECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-211800- /O.CON.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 648 AM CST MON JAN 21 2013 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...NORTHWEST WINDS OF 15 TO 25 MPH WILL HELP CREATE WIND CHILLS OF 20 BELOW TO 25 BELOW THROUGH MID MORNING. SLOW IMPROVEMENT WILL BEGIN AFTER 10 AM. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
996 WWUS43 KDMX 211532 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 932 AM CST MON JAN 21 2013 ...DANGEROUSLY COLD WIND CHILLS WILL CONTINUE THIS MORNING... .GUSTY NORTHWEST WINDS WILL CONTINUE TO BRING ARCTIC AIR INTO IOWA THIS MORNING. THE WINDS COMBINED WITH TEMPERATURES FALLING DOWN TO 10 TO 15 BELOW NORTH AND ZERO TO 5 BELOW OVER CENTRAL IOWA ARE CREATING DANGEROUS WIND CHILL VALUES. IAZ004>007-015>017-023>028-033>039-211800- /O.CON.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO 932 AM CST MON JAN 21 2013 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...NORTHWEST WINDS OF 15 TO 25 MPH WILL CREATE WIND CHILLS OF 25 BELOW TO 35 BELOW ZERO. THESE VALUES WILL SLOWLY IMPROVE AFTER 10 AM. * IMPACTS...FROSTBITE AND POSSIBLY HYPOTHERMIA OR DEATH ARE POSSIBLE IF EXPOSURE TO OUTSIDE ELEMENTS LASTS FOR MORE THAN 15 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. EVEN A FEW MINUTES IN THIS ENVIRONMENT CAN LEAD TO HEALTH COMPLICATIONS SUCH AS NUMBNESS AND SEVERE FROSTBITE. THE ELDERLY AND PERSONS WITH PRE EXISTING HEALTH PROBLEMS ARE PARTICULARLY SUSCEPTIBLE TO EXTREME COLD AND ITS DANGEROUS EFFECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND WIND WILL CREATE DANGEROUSLY COLD WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ IAZ044>050-057>062-211800- /O.CON.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...ADEL... DES MOINES...NEWTON...GRINNELL 932 AM CST MON JAN 21 2013 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WIND AND WIND CHILL TEMPERATURES...NORTHWEST WINDS OF 15 TO 25 MPH WILL CREATE WIND CHILLS OF 20 BELOW TO 25 BELOW THIS MORNING WITH A SLOW IMPROVEMENT AFTER 10 AM. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ FAB
617 WWUS43 KDMX 211813 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1213 PM CST MON JAN 21 2013 ...DANGEROUSLY COLD WIND CHILLS WILL CONTINUE THIS MORNING... .GUSTY NORTHWEST WINDS WILL DIMINISH SOME THIS AFTERNOON AND EVEN MORE TONIGHT BUT FRIGID TEMPERATURES WILL REMAIN ACROSS CENTRAL IOWA. IAZ004>007-015>017-220215- /O.EXP.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ /O.EXB.KDMX.WC.Y.0001.130121T1813Z-130122T1600Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 1213 PM CST MON JAN 21 2013 ...WIND CHILL ADVISORY IN EFFECT UNTIL 10 AM CST TUESDAY... ...WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM CST TUESDAY. * WIND AND WIND CHILL TEMPERATURES...A NORTHWEST WIND AT 15 TO 25 MPH WILL GRADUALLY DIMINISH THROUGH THE AFTERNOON BUT WITH TEMPERATURES ONLY EXPECTED TO CLIMB TO ZERO OR A COUPLE DEGREES ABOVE AND LOWS TONIGHT AROUND 10 BELOW...WIND CHILL VALUES WILL RANGE FROM 20 TO 25 BELOW THIS AFTERNOON AND DROP TO 20 TO 30 BELOW TONIGHT. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND 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. && $$ IAZ023>028-035>039-220215- /O.EXP.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ /O.NEW.KDMX.WC.Y.0002.130122T0000Z-130122T1600Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...FORT DODGE...WEBSTER CITY... ELDORA...GRUNDY CENTER...WATERLOO 1213 PM CST MON JAN 21 2013 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM CST TUESDAY... ...WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM CST TUESDAY. * WIND AND WIND CHILL TEMPERATURES...WIND CHILL VALUES WILL RANGE FROM 10 TO 20 BELOW FOR THE REST OF THE AFTERNOON ALONG WITH A NORTHWEST WIND AT 10 TO 20 MPH. TONIGHT THE WINDS WILL DIMINISH A BIT MORE BUT TEMPERATURES WILL QUICKLY FALL BELOW ZERO BRINGING WIND CHILL VALUES BACK DOWN TO 20 TO 25 BELOW AFTER 6PM. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ IAZ033-034-211915- /O.EXP.KDMX.WC.W.0001.000000T0000Z-130121T1800Z/ SAC-CALHOUN- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY 1213 PM CST MON JAN 21 2013 ...WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY... ALTHOUGH VERY COLD TEMPERATURES WILL REMAIN OVER THE AREA AND THE WIND WILL BE BRISK AT TIMES...WIND CHILL VALUES WILL CLIMB ABOVE WARNING CRITERIA WITH VALUES STAYING IN THE 10 TO 20 BELOW RANGE. $$ IAZ049-050-220215- /O.EXP.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ /O.NEW.KDMX.WC.Y.0002.130122T0000Z-130122T1600Z/ MARSHALL-TAMA- INCLUDING THE CITIES OF...MARSHALLTOWN...TOLEDO 1213 PM CST MON JAN 21 2013 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM CST TUESDAY... ...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM CST TUESDAY. * WIND AND WIND CHILL TEMPERATURES...WIND CHILL VALUES HAVE CLIMBED ABOVE ADVISORY CRITERIA FOR THIS AFTERNOON AND WINDS WILL DIMINISH SOME. TEMPERATURES WILL QUICKLY FALL BELOW ZERO EARLY THIS EVENING ALONG WITH A NORTHWEST WIND AT 10 TO 15 MPH CREATING WIND CHILLS FROM 20 TO 25 BELOW TONIGHT. AS A RESULT THE WIND CHILL ADVISORY WAS ALLOWED TO EXPIRE FOR THE AFTERNOON BUT WILL GO BACK INTO AFFECT TONIGHT. * IMPACTS...FROSTBITE CAN EASILY OCCUR IF YO ARE EXPOSED TO THE ELEMENTS FOR MORE THAN 30 MINUTES WITHOUT PROPER WINTER WEATHER CLOTHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ IAZ044>048-057>062-211915- /O.EXP.KDMX.WC.Y.0001.000000T0000Z-130121T1800Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-DALLAS-POLK- JASPER-POWESHIEK- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... GRINNELL 1213 PM CST MON JAN 21 2013 ...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY... ALTHOUGH VERY COLD TEMPERATURES WILL REMAIN OVER THE AREA AND THE WIND WILL BE BRISK AT TIMES...WIND CHILL VALUES WILL CLIMB ABOVE ADVISORY CRITERIA WITH VALUES APPROACHING 10 TO 15 BELOW BY MID AFTERNOON. $$ FAB
What forecasters said that day
The local office's own words before this wind chill warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this wind chill warning went out at Jan 20, 3:20 AM CST, 18 minutes earlier.
Area forecast discussion, Jan 20, 3:20 AM CST, 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 320 AM CST SUN JAN 20 2013 .SHORT TERM /TODAY/... VIGOROUS SHORT WAVE IS CURRENTLY DROPPING SOUTHEAST THROUGH NORTH DAKOTA EARLY THIS MORNING. THE SHORT WAVE WILL RACE SOUTHEAST THIS MORNING AND WILL BRING INCREASED KINEMATIC FORCING ACROSS CENTRAL AND NORTH CENTRAL IOWA. AN AREA OF THETA-E ADVECTION AHEAD OF THE SYSTEM WILL HELP BRING ENOUGH MOISTURE TO BRING NEAR SATURATION TO A DEPTH OF NEARLY 15 KFT TO THE NORTHERN TWO THIRDS OF THE FORECAST AREA FOR A PERIOD. MUCH OF THIS DEPTH RESIDES WITHIN THE DEDRETIC GROWTH ZONE WHICH WILL RESULT IN A HIGH PERCENTAGE OF THE SNOW TO FALL AS DENDRITES AND HIGH SNOW RATIOS OF 20-25 TO 1. DESPITE THE LIMITED MOISTURE...THE HIGH SNOW RATIOS WILL HELP PRODUCE A 1 TO 2 INCH BAND OF SNOW. CURRENTLY THE BEST POTENTIAL FOR THIS BAND TO SET UP IS ALONG A ROCKWELL CITY/FORT DODGE/AMES/TAMA LINE WITH AMOUNTS GRADUALLY DIMINISHING AS THE SYSTEM PROGRESSES SOUTHEAST. WIND WILL NOT BE PROBLEM MUCH OF THE DAY AT 10 KTS OR LESS. THIS WIND WILL BEGIN TO INCREASE BY LATE AFTERNOON THOUGH WITH DEEPER MIXING DEVELOPING WITH MID LEVEL COLD ADVECTION COMMENCING. TEMPERATURES WILL BE MUCH COLDER TODAY EVEN THOUGH THIS IS NOT THE FULL DOSE OF ARCTIC AIR WHICH WILL BE ARRIVING OVERNIGHT TONIGHT. TEMPERATURES TODAY WILL BE AROUND 10 NORTH TO THE MID 20S FAR SOUTH. .LONG TERM /TONIGHT THROUGH SATURDAY/... FOCUS FOR THE LONG TERM REMAINS ON COLD SNAP THROUGH TUESDAY...FOLLOWED BY CHANCE FOR LIGHT SNOW TUESDAY. ARCTIC AIR CONTINUING TO SINK SOUTHWARD INTO THE CWA...AS H85 TEMPS APPROACH -20C TO -25C BY 12Z MONDAY OVER THE AREA. WINDS EXPECTED TO STAY UP TONIGHT AS WELL WITH THE CONTINUED CAA AND SOMEWHAT TIGHTENED SFC PRES GRADIENT. MIN TEMPS TONIGHT EXPECTED TO DROP TO AROUND -10F ACROSS THE NORTHEAST...TOWARD THE SINGLE DIGITS ABOVE ZERO ACROSS THE SOUTHERN CWA. WITH THE WINDS AND LINGERING LOW CLOUD COVER...OVERNIGHT TEMPS TO BE TEMPERED SOMEWHAT. HOWEVER COMBINATION OF TEMPS AND WIND STILL YIELDING WIND CHILLS IN THE -20F TO -35F RANGE ACROSS THE NORTHERN HALF OF THE CWA. THEREFORE WILL GO AHEAD AND ISSUE A WIND CHILL WARNING FOR AREAS ALONG AND NORTH OF HWY 20 FOR TONIGHT THROUGH MONDAY MORNING. A FEW TIERS OF COUNTIES SOUTH OF THAT WILL STILL LIKELY NEED A WIND CHILL ADVISORY...ALTHOUGH HOW FAR SOUTH IS SOMEWHAT QUESTIONABLE SO WILL ALLOW DAYSHIFT TO HANDLE THAT PORTION OF THE HEADLINE TO FURTHER REFINE AREAL EXTENT. ALSO WITH THE COLDER AIR REMAINING IN PLACE INTO MONDAY/MONDAY NIGHT...NOT A LOT OF RECOVERY EXPECTED WITH TEMPS. THEREFORE ANOTHER HEADLINE FOR WIND CHILLS LIKELY NEEDED FOR LATER MONDAY INTO TUESDAY MORNING. WENT A BIT COLDER MONDAY NIGHT ACROSS THE FAR NORTH WITH THE SFC HIGH CENTER SITUATED ACROSS THE CWA...AND CLEARING SKIES FOR MONDAY NIGHT. THEREFORE COULD SEE TEMPS BOTTOM OUT ACROSS THE NORTH/NORTHEAST WITH LOWS IN THE -10F TO -15F RANGE. WINDS WILL BE LIGHTER THOUGH...SO WIND CHILLS A BIT WARMER IN THE -20F TO -25F RANGE MONDAY NIGHT. TEMPERATURES BEGIN TO MODERATE INTO TUESDAY AS WAA SETS UP ACROSS THE CWA AS HIGH PRESSURE SHIFTS EAST AND A WARM FRONT ALOFT PUSHES EAST ACROSS THE CWA. A WEAK UPPER LEVEL DISTURBANCE DROPS SOUTHEASTWARD THROUGH THE CWA IN THE NORTHWEST FLOW PATTERN ALOFT. THIS SYSTEM WITH THE WAA COULD BRING SOME LIGHT SNOW/FLURRIES TO THE STATE TUESDAY. MOISTURE LOOKING BETTER IN THE SOUNDINGS SO HAVE INCREASED POPS INTO THE SLIGHT CHANCE/LOW CHANCE CATEGORY AND EXPANDED SOME ACROSS THE CWA. FOCUS THEN SHIFTS TO UPPER LEVEL TROUGH SINKING SOUTHEASTWARD THROUGH THE CWA MAINLY THURSDAY INTO THURSDAY NIGHT. THIS SYSTEM WILL BRING THE NEXT CHANCE FOR SOME LIGHT SNOW TO PORTIONS OF THE CWA...WITH THE GREATEST CHANCES ACROSS THE NORTH/EAST. THIS WILL SEND SOME COLDER AIR INTO THE STATE AGAIN...WITH H85 TEMPS DROPPING INTO THE TEENS TO AROUND -20C BY LATE THIS WEEK. THEREFORE SHOULD SEE A COOLDOWN AGAIN TOWARD THE WEEK INTO THE WEEKEND. HOWEVER THIS SHOULD BE RATHER SHORT-LIVED AS NORTHWEST FLOW PATTERN BEGINS TO SHIFT EAST BY THE LATTER PORTION OF THE WEEKEND WITH UPPER RIDGING BUILDING INTO THE WESTERN/CENTRAL US ALOFT. THEREFORE ANTICIPATE DECENT WARM UP AGAIN JUST BEYOND THE CURRENT FORECAST PERIOD. && .AVIATION...20/06Z COLD FRONT NOW THROUGH MOST OF THE FORECAST AREA WITH HIGHER IMPACT WIND AND GUSTS BEGINNING TO EXIT...THOUGH FOR THE NEXT FEW HOURS WINDS WILL STILL BE PROBLEMATIC AT KMCW...KALO...KDSM...AND KOTM. PATCHES OF BKN MVFR CIGS HAVE ALSO DISSIPATED AS COLD AIR AND SUBSIDENCE ADVANCES SOUTHEAST WITH TIME. ATTENTION TURNS TO STRONG PV ANOMALY ASSOCIATED WITH UPPER LEVEL VORTICITY MAX NOW DIVING SOUTHEAST TOWARD SOUTHERN SASKATCHEWAN. THIS WILL EVENTUALLY DIG ACROSS IOWA SUNDAY...BRINGING LOWERING CIGS TO MVFR/VFR CAT BETWEEN 13-16Z LIFTING SOMEWHAT AFT 18-20Z. SOME LIGHT SNOW OR FLURRIES MAY BRING MINOR VSBY REDUCTIONS...THOUGH AS SYSTEM MOVES SOUTHEAST LIKELY TO SEE WEAKENING WITH TIME. MINOR ACCUMULATIONS EXPECTED WITH HIGH SNOW:WATER RATIOS AND LIMITED MOISTURE. FOLLOWING THE SYSTEM WILL BE YET ANOTHER RUSH OF COLDER AIR OVERNIGHT SUNDAY NIGHT AND MONDAY. ARCTIC SFC HIGH TO DROP SOUTHEAST ALONG WITH UPPER LEVEL PV ANOMALY AIDING INCREASING WINDS AND WIND GUSTS AFT 21/00Z. THIS WILL LIKELY LAST THROUGH THE END OF THE PERIOD AS SFC WINDS INCREASE TO 12-18KTS AFT 02Z WITH POTENTIAL GUSTS APPROACHING 20-28KTS AS LAPSE RATES STEEPEN DURING THE NIGHT./REV && .DMX WATCHES/WARNINGS/ADVISORIES... WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST MONDAY FOR BLACK HAWK-BREMER-BUTLER-CALHOUN-CERRO GORDO-EMMET- FRANKLIN-GRUNDY-HAMILTON-HANCOCK-HARDIN-HUMBOLDT-KOSSUTH- PALO ALTO-POCAHONTAS-SAC-WEBSTER-WINNEBAGO-WORTH-WRIGHT. && SHORT TERM...DONAVON LONG TERM...BEERENDS AVIATION...REV
Hazardous weather outlook, Jan 19, 11:38 PM CST, 4 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 1138 PM CST SAT JAN 19 2013 IAZ004>007-015>017-023>028-033>039-044>050-210545- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA- 1138 PM CST SAT JAN 19 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN AND CENTRAL IOWA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SNOW IS LIKELY SUNDAY...WITH SNOWFALL AMOUNTS GENERALLY AROUND ONE INCH...THOUGH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. WIND CHILLS COULD DROP TO THE 25 BELOW TO NEAR 40 BELOW RANGE OVER THE FAR NORTHERN EXTENT OF THE OUTLOOK AREA SUNDAY NIGHT INTO MONDAY MORNING...AND POSSIBLE AGAIN MONDAY NIGHT INTO TUESDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. IAZ057>062-070>075-081>086-092>097-210545- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON- WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- 1138 PM CST SAT JAN 19 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN IOWA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WIND CHILLS COULD DROP TO THE 15 BELOW TO NEAR 30 BELOW RANGE SUNDAY NIGHT INTO MONDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. REV
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 20, 3:54 PM CST | Wind Chill Advisory | DMX | Audubon, Boone, Carroll, Cerro Gordo, Crawford, Dallas and 14 more | 42 hr |
Nearby
Wind Chill Warnings in Iowa, 2013Every wind chill warning in 2013
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.