Alert archive / Colorado / Winter Storm Warnings in 2017
Winter Storm Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Oct 8, 2017, 4:14 AM MDT for 16 counties in Colorado. It took effect at Oct 8, 2017, 9:00 PM MDT. It was in force for 18 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 8, 2017, 4:14 AM MDT (10:14 UTC)
- In effect from
- Oct 8, 2017, 9:00 PM MDT
- Expired
- Oct 9, 2017, 3:00 PM MDT
- In force
- 18 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 59 km from the middle of the area, began a volume at 10:12 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 |
|---|---|---|---|
| Oct 9, 5:00 AM MDT | SNOW 2 | 3 Wnw Arvada, CO | |
| Oct 9, 5:56 AM MDT | SNOW 2 | 2 Ssw Boulder, CO | |
| Oct 9, 6:21 AM MDT | SNOW 5 | Genesee, CO | ACCUMULATION OVER LAST 9 HOURS. |
| Oct 9, 6:30 AM MDT | SNOW 0 | Denver Intl Airport, CO | TRACE SNOW MEASURED. |
| Oct 9, 6:42 AM MDT | SNOW 1 | Lakewood, CO | |
| Oct 9, 6:45 AM MDT | SNOW 4 | Evergreen, CO | STORM TOTAL 4.5 INCHES. |
| Oct 9, 6:56 AM MDT | SNOW 2.8 | 3 N Roxborough Park, CO | |
| Oct 9, 7:00 AM MDT | SNOW 0.2 | 6 Nw Greeley, CO | |
| Oct 9, 7:00 AM MDT | SNOW 0.5 | 2 Sse Englewood, CO | |
| Oct 9, 7:00 AM MDT | SNOW 0.5 | 3 E Franktown, CO | |
| Oct 9, 7:00 AM MDT | SNOW 0.9 | Hygiene, CO | |
| Oct 9, 7:00 AM MDT | SNOW 1 | 2 E Elizabeth, CO | |
| Oct 9, 7:00 AM MDT | SNOW 1 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL |
| Oct 9, 7:00 AM MDT | SNOW 1 | 7 S Lyons, CO | |
| Oct 9, 7:00 AM MDT | SNOW 1 | Firestone, CO | |
| Oct 9, 7:00 AM MDT | SNOW 1.5 | 7 S Aurora, CO | |
| Oct 9, 7:00 AM MDT | SNOW 2 | 4 Nne Hartsel, CO | |
| Oct 9, 7:00 AM MDT | SNOW 2 | 5 Nw Brighton, CO | |
| Oct 9, 7:00 AM MDT | SNOW 2 | E Aurora, CO | |
| Oct 9, 7:00 AM MDT | SNOW 2.8 | 1 Nnw Louisville, CO | |
| Oct 9, 7:00 AM MDT | SNOW 3 | 1 W Copper Mountain, CO | COPPER MOUNTAIN SNOTEL |
| Oct 9, 7:00 AM MDT | SNOW 3 | 1 Wnw Loveland Pass, CO | LOVELAND BASIN SNOTEL |
| Oct 9, 7:00 AM MDT | SNOW 3 | 8 Sse Rand, CO | |
| Oct 9, 7:00 AM MDT | SNOW 3.5 | Aspen Springs, CO | |
| Oct 9, 7:00 AM MDT | SNOW 4.6 | Ese Estes Park, CO | |
| Oct 9, 7:00 AM MDT | SNOW 5 | 1 Ne Echo Lake, CO | ECHO LAKE SNOTEL |
| Oct 9, 7:00 AM MDT | SNOW 5 | 3 Sw Ward, CO | NIWOT SNOTEL |
| Oct 9, 7:00 AM MDT | SNOW 5.5 | 7 W Rustic, CO | |
| Oct 9, 7:00 AM MDT | HEAVY SNOW 6.2 | 4 Wnw Conifer, CO | |
| Oct 9, 7:00 AM MDT | HEAVY SNOW 8 | 7 Nw Red Feather Lakes, CO | BLACK MOUNTAIN SNOTEL. |
| Oct 9, 7:00 AM MDT | HEAVY SNOW 9.5 | 3 Wnw Pingree Park, CO | |
| Oct 9, 7:00 AM MDT | HEAVY SNOW 12 | 7 W Four Corners, CO | ROACH SNOTEL. |
| Oct 9, 7:07 AM MDT | SNOW 3 | 3 Ssw Boulder, CO | MEASURED AT THE NWS BOULDER OFFICE. |
| Oct 9, 7:15 AM MDT | SNOW 0.9 | Hereford, CO | |
| Oct 9, 7:15 AM MDT | SNOW 9.3 | 1 E Buckhorn Mountain, CO | |
| Oct 9, 7:16 AM MDT | SNOW 0.5 | Se Fort Collins, CO | |
| Oct 9, 7:16 AM MDT | SNOW 0.9 | 4 E Fort Collins, CO | |
| Oct 9, 7:17 AM MDT | SNOW 3 | 1 Nnw Federal Heights, CO | MEASURED OVER LAST 7 HOURS. |
| Oct 9, 7:17 AM MDT | SNOW 3.7 | 3 N Tiny Town, CO | STORM TOTAL. SLUSHY ROADS IN NORTH KEN-CARYL VALLEY. |
| Oct 9, 7:28 AM MDT | SNOW 1 | 1 Nw Longmont, CO | AT THE NWS CWSU |
| Oct 9, 7:30 AM MDT | SNOW 2.5 | 1 Nw Grant, CO | |
| Oct 9, 7:30 AM MDT | SNOW 5 | 7 E Virginia Dale, CO | |
| Oct 9, 7:40 AM MDT | SNOW 5 | 4 Ene Nederland, CO | MEASURED OVER LAST 9 HOURS |
| Oct 9, 7:43 AM MDT | SNOW 1 | S Lafayette, CO | |
| Oct 9, 7:43 AM MDT | SNOW 2.8 | 3 Nne Eldorado Springs, CO | |
| Oct 9, 7:55 AM MDT | SNOW 2 | 1 W Mead, CO | LAST 9 HOURS |
| Oct 9, 7:55 AM MDT | SNOW 3 | Northglenn, CO | |
| Oct 9, 8:00 AM MDT | SNOW 0.5 | 2 Sse Breckenridge, CO | |
| Oct 9, 8:00 AM MDT | SNOW 1.7 | Nw Georgetown, CO | |
| Oct 9, 8:00 AM MDT | SNOW 2 | N Williams Fork Reservo, CO | |
| Oct 9, 8:00 AM MDT | SNOW 5 | 3 Ene White Ranch Open, CO | |
| Oct 9, 8:00 AM MDT | HEAVY SNOW 7 | Genesee, CO | MEASURED OVER LAST 10 HOURS |
| Oct 9, 8:30 AM MDT | SNOW 4 | 2 Ssw Wheat Ridge, CO | |
| Oct 9, 8:55 AM MDT | HEAVY SNOW 6 | 2 S Tiny Town, CO | |
| Oct 9, 9:00 AM MDT | SNOW 3 | 5 Sse Aurora, CO | MEASURED OVER LAST 6 HOURS |
| Oct 9, 9:00 AM MDT | SNOW 3.5 | 1 N Walden, CO | |
| Oct 9, 9:00 AM MDT | SNOW 3.6 | 1 Se Gould, CO | |
| Oct 9, 9:00 AM MDT | SNOW 3.8 | 3 Nne Northglenn, CO | |
| Oct 9, 9:00 AM MDT | SNOW 5 | 1 Sw Kittredge, CO | |
| Oct 9, 9:00 AM MDT | SNOW 5 | Nw Broomfield, CO | MEASURED OVER LAST 8 HOURS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 10.2 hours before the alert went out and 170 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
- 4038 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
920 WWUS45 KBOU 081014 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 414 AM MDT Sun Oct 8 2017 ...SEASON'S FIRST ACCUMULATING SNOW EXPECTED FOR THE I- 25 CORRIDOR... .A strong cold front and upper level storm system will move into the area this evening. Temperatures will drop rapidly with the passage of the cold front. Snow will develop over the mountains and higher foothills, with rain developing and spreading south during the evening in lower elevations. Temperatures will turn cold enough for rain to change over to snow across most of the I-25 Corridor towards the midnight hour and then across the eastern plains late Sunday night into early Monday morning. The mild weather today would make an excellent time to prepare for winter's return. Check car tires and ensure your emergency kits, flashlights, blankets, ice scrapers etc. are in place and all ready to go. Drain outdoor sprinkler systems to protect them from the well below freezing temperatures expected by Monday night. COZ033>036-081815- /O.UPG.KBOU.WS.A.0015.171009T0300Z-171010T0000Z/ /O.NEW.KBOU.WS.W.0013.171009T0300Z-171009T2100Z/ Rocky Mountain National Park and the Medicine Bow Range- The Mountains of Summit County, the Mosquito Range, and the Indian Peaks-The Northern Front Range Foothills- The Southern Front Range Foothills- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 414 AM MDT Sun Oct 8 2017 ...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 6 to 10 inches, with localized amounts up to 14 inches, are expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills and The Southern Front Range Foothills. * WHEN...Snow will develop from north to south this evening and become heavy at times overnight. Snow will decrease by Monday afternoon. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ038>041-081815- /O.UPG.KBOU.WS.A.0015.171009T0600Z-171010T0000Z/ /O.NEW.KBOU.WS.W.0013.171009T0600Z-171009T2100Z/ Fort Collins-Boulder and the western suburbs of Denver-Denver- Castle Rock- Including the cities of Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 414 AM MDT Sun Oct 8 2017 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Some secondary roads and bridges and overpasses may become snow or slush covered. Plan on slow and hazardous travel conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 7 inches are expected, heaviest amounts near the foothills. * WHERE...Fort Collins, Boulder, Denver and Castle Rock. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Scattered power outages may occur due to heavy wet snow accumulating on trees still bearing their leaves. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ030>032-081815- /O.NEW.KBOU.WW.Y.0024.171009T0300Z-171009T1800Z/ North Park-Rabbit Ears Pass- Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, North Park, Rand, Spicer, Walden, East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 414 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT MONDAY... * WHAT...Snow expected. Plan on hazardous travel conditions, including during the morning commute on Monday. Total snow accumulations of 5 to 8 inches, with localized amounts up to 12 inches in the mountains, are expected. * WHERE...North Park, Rabbit Ears Pass and Grand and Summit Counties Below 9000 Feet. * WHEN...9 PM today to noon Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ042-043-045-046-081815- /O.NEW.KBOU.WW.Y.0024.171009T0600Z-171009T2100Z/ Briggsdale-Greeley-Byers-Limon- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 414 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on wet or slippery road conditions, including during the morning commute on Monday. Bridges and overpasses will be most prone to any snow or slush accumulation. Total snow accumulations of 2 to 5 inches are expected. * WHERE...Briggsdale, Greeley, Byers and Limon. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Some accumulation on trees may occur, resulting in a few broken tree limbs. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ037-081815- /O.NEW.KBOU.WW.Y.0024.171009T0900Z-171009T2100Z/ South Park- Including the cities of Fairplay, Hartsel, Lake George, and South Park 414 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on slippery road conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 6 inches are expected. * WHERE...South Park. * WHEN...3 AM to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
5 follow-up statements
963 WWUS45 KBOU 081734 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1134 AM MDT Sun Oct 8 2017 ...SEASON'S FIRST ACCUMULATING SNOW EXPECTED FOR THE I- 25 CORRIDOR... .A strong cold front and upper level storm system will move into the area this evening. Temperatures will drop rapidly with the passage of the cold front. Snow will develop over the mountains and higher foothills, with rain developing and spreading south during the evening in lower elevations. Temperatures will turn cold enough for rain to change over to snow across most of the I- 25 Corridor towards the midnight hour and then across the eastern plains late Sunday night into early Monday morning. The mild weather today would make an excellent time to prepare for winter's return. Check car tires and ensure your emergency kits, flashlights, blankets, ice scrapers etc. are in place and all ready to go. Drain outdoor sprinkler systems to protect them from the well below freezing temperatures expected by Monday night. COZ033>036-090200- /O.CON.KBOU.WS.W.0013.171009T0300Z-171009T2100Z/ Rocky Mountain National Park and the Medicine Bow Range- The Mountains of Summit County, the Mosquito Range, and the Indian Peaks-The Northern Front Range Foothills- The Southern Front Range Foothills- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 1134 AM MDT Sun Oct 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 6 to 10 inches, with localized amounts up to 14 inches, are expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills and The Southern Front Range Foothills. * WHEN...Snow will develop from north to south this evening and become heavy at times overnight. Snow will decrease by Monday afternoon. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ038>041-090200- /O.CON.KBOU.WS.W.0013.171009T0600Z-171009T2100Z/ Fort Collins-Boulder and the western suburbs of Denver-Denver- Castle Rock- Including the cities of Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 1134 AM MDT Sun Oct 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Some secondary roads and bridges and overpasses may become snow or slush covered. Plan on slow and hazardous travel conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 7 inches are expected, heaviest amounts near the foothills. * WHERE...Fort Collins, Boulder, Denver and Castle Rock. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Scattered power outages may occur due to heavy wet snow accumulating on trees still bearing their leaves. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ030>032-090200- /O.CON.KBOU.WW.Y.0024.171009T0300Z-171009T1800Z/ North Park-Rabbit Ears Pass- Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, North Park, Rand, Spicer, Walden, East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 1134 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT MONDAY... * WHAT...Snow expected. Plan on hazardous travel conditions, including during the morning commute on Monday. Total snow accumulations of 5 to 8 inches, with localized amounts up to 12 inches in the mountains, are expected. * WHERE...North Park, Rabbit Ears Pass and Grand and Summit Counties Below 9000 Feet. * WHEN...9 PM today to noon Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ042-043-045-046-090200- /O.CON.KBOU.WW.Y.0024.171009T0600Z-171009T2100Z/ Briggsdale-Greeley-Byers-Limon- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 1134 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on wet or slippery road conditions, including during the morning commute on Monday. Bridges and overpasses will be most prone to any snow or slush accumulation. Total snow accumulations of 2 to 5 inches are expected. * WHERE...Briggsdale, Greeley, Byers and Limon. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Some accumulation on trees may occur, resulting in a few broken tree limbs. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ037-090200- /O.CON.KBOU.WW.Y.0024.171009T0900Z-171009T2100Z/ South Park- Including the cities of Fairplay, Hartsel, Lake George, and South Park 1134 AM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on slippery road conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 6 inches are expected. * WHERE...South Park. * WHEN...3 AM to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
812 WWUS45 KBOU 090150 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 750 PM MDT Sun Oct 8 2017 ...SEASON'S FIRST ACCUMULATING SNOW EXPECTED FOR THE I- 25 CORRIDOR... .A strong cold front and upper level storm system will move into the area tonight. Temperatures will drop rapidly with the passage of the cold front. Snow will develop over the mountains and higher foothills, with rain developing and spreading south during the evening in lower elevations. Temperatures will turn cold enough for rain to change over to snow across most of the I- 25 Corridor towards the midnight hour and then across the eastern plains late Sunday night into early Monday morning. COZ033>036-091000- /O.CON.KBOU.WS.W.0013.171009T0300Z-171009T2100Z/ Rocky Mountain National Park and the Medicine Bow Range- The Mountains of Summit County, the Mosquito Range, and the Indian Peaks-The Northern Front Range Foothills- The Southern Front Range Foothills- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 750 PM MDT Sun Oct 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 6 to 12 inches, with localized amounts up to 16 inches, are expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills and The Southern Front Range Foothills. * WHEN...9 PM today to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ038>041-091000- /O.CON.KBOU.WS.W.0013.171009T0600Z-171009T2100Z/ Fort Collins-Boulder and the western suburbs of Denver-Denver- Castle Rock- Including the cities of Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 750 PM MDT Sun Oct 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 6 inches, with localized amounts up to 8 inches, are expected. * WHERE...Fort Collins, Boulder and the western suburbs of Denver, Denver and Castle Rock. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Scattered power outages may occur due to heavy wet snow accumulating on trees still bearing their leaves. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ030>032-091000- /O.CON.KBOU.WW.Y.0024.171009T0300Z-171009T1800Z/ North Park-Rabbit Ears Pass- Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, North Park, Rand, Spicer, Walden, East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 750 PM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY... * WHAT...Snow expected. Plan on slippery road conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 7 inches, with localized amounts up to 12 inches, are expected. * WHERE...North Park, Rabbit Ears Pass and Grand and Summit Counties Below 9000 Feet. * WHEN...9 PM today to noon Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ042-043-045-046-091000- /O.CON.KBOU.WW.Y.0024.171009T0600Z-171009T2100Z/ Briggsdale-Greeley-Byers-Limon- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 750 PM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on slippery road conditions, including during the morning commute on Monday. Tree branches could fall as well. Total snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, are expected. * WHERE...Briggsdale, Greeley, Byers and Limon. * WHEN...Midnight to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. Some accumulation on trees may occur, resulting in a few broken tree limbs. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ037-091000- /O.CON.KBOU.WW.Y.0024.171009T0900Z-171009T2100Z/ South Park- Including the cities of Fairplay, Hartsel, Lake George, and South Park 750 PM MDT Sun Oct 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM MDT MONDAY... * WHAT...Snow expected. Plan on slippery road conditions, including during the morning commute on Monday. Total snow accumulations of 4 to 6 inches are expected. * WHERE...South Park. * WHEN...3 AM to 3 PM Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
080 WWUS45 KBOU 091013 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 413 AM MDT Mon Oct 9 2017 ...HEAVIEST SNOW WILL FALL THIS MORNING... .Rain has mixed with and changed to snow over most of the plains early this morning. Mainly light snow fell overnight, although intensity will increase this morning. Snow will decrease from northwest to southeast by afternoon, with improving weather conditions. COZ033>036-091815- /O.CON.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Rocky Mountain National Park and the Medicine Bow Range- The Mountains of Summit County, the Mosquito Range, and the Indian Peaks-The Northern Front Range Foothills- The Southern Front Range Foothills- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 413 AM MDT Mon Oct 9 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Heavy snow occurring. Plan on hazardous and slow travel conditions, including during the morning commute. Additional snow accumulations of 3 to 7 inches are expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills and The Southern Front Range Foothills. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ038>041-091815- /O.CON.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Fort Collins-Boulder and the western suburbs of Denver-Denver- Castle Rock- Including the cities of Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 413 AM MDT Mon Oct 9 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow may be heavy at times through this morning. Some slush may accumulate on secondary roads, and bridges and overpasses during the morning commute. Additional snow accumulations of 2 to 3 inches are expected. * WHERE...Fort Collins, Boulder, Denver, and Castle Rock. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Scattered power outages may occur due to heavy wet snow accumulating on trees still bearing their leaves. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means hazardous winter weather conditions are occurring. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ030>032-091800- /O.CON.KBOU.WW.Y.0024.000000T0000Z-171009T1800Z/ North Park-Rabbit Ears Pass- Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, North Park, Rand, Spicer, Walden, East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 413 AM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow occurring. Plan on slippery road conditions, including during the morning commute. Additional snow accumulations of 1 to 5 inches are expected, heaviest in Western Grand and Western Jackson counties. * WHERE...North Park, Rabbit Ears Pass and Grand and Summit Counties Below 9000 Feet. * WHEN...Until noon today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ042-043-045-046-091815- /O.CON.KBOU.WW.Y.0024.000000T0000Z-171009T2100Z/ Briggsdale-Greeley-Byers-Limon- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 413 AM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow occurring. Some reductions to visibility are expected. Additional snow accumulations of 1 to 3 inches are expected. * WHERE...Briggsdale, Greeley, Byers and Limon. * WHEN...Until 3 PM today. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow may cause travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ037-091815- /O.CON.KBOU.WW.Y.0024.000000T0000Z-171009T2100Z/ South Park- Including the cities of Fairplay, Hartsel, Lake George, and South Park 413 AM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow occurring. Plan on slippery road conditions, including during the morning commute. Additional snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, are expected. * WHERE...South Park. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
497 WWUS45 KBOU 091811 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1211 PM MDT Mon Oct 9 2017 ...SNOW MOVING ONTO THE PLAINS... .The area of moderate to heavy snowfall has moved onto the plains, extending from Douglas county across the eastern Denver metro area into Weld county at noon. The snow will continue to shift eastward and diminish this afternoon. In the mountains there was still accumulating snow over the east slopes of the Front Range, with diminishing showers in areas further west. COZ038-091915- /O.CAN.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Fort Collins- Including the cities of Fort Collins, Hereford, Loveland, and Nunn 1211 PM MDT Mon Oct 9 2017 ...WINTER STORM WARNING IS CANCELLED... Occasional light snow is expected this afternoon, with little or no additional accumulation. $$ COZ037-091915- /O.CAN.KBOU.WW.Y.0024.000000T0000Z-171009T2100Z/ South Park- Including the cities of Fairplay, Hartsel, Lake George, and South Park 1211 PM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... Occasional snow showers are expected this afternoon. Additional accumulations will be an inch or less. $$ COZ030>032-091915- /O.EXP.KBOU.WW.Y.0024.000000T0000Z-171009T1800Z/ North Park-Rabbit Ears Pass- Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, North Park, Rand, Spicer, Walden, East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 1211 PM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY HAS EXPIRED... Scattered light snow showers are expected this afternoon, with little or no accumulation. $$ COZ033>036-092100- /O.CON.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Rocky Mountain National Park and the Medicine Bow Range- The Mountains of Summit County, the Mosquito Range, and the Indian Peaks-The Northern Front Range Foothills- The Southern Front Range Foothills- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 1211 PM MDT Mon Oct 9 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow occurring. The snow will diminish this afternoon, with travel conditions improving. Additional snow accumulations of up to two inches are expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills and The Southern Front Range Foothills. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ039>041-092100- /O.CON.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Boulder and the western suburbs of Denver-Denver-Castle Rock- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 1211 PM MDT Mon Oct 9 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow occurring. The snow will diminish this afternoon with travel conditions improving. Additional snow accumulations of up to two inches are expected. * WHERE...Boulder and the western suburbs of Denver, Denver and Castle Rock. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ COZ042-043-045-046-092100- /O.CON.KBOU.WW.Y.0024.000000T0000Z-171009T2100Z/ Briggsdale-Greeley-Byers-Limon- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 1211 PM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON... * WHAT...Snow occurring. Additional accumulations of up to two inches are expected. * WHERE...Briggsdale, Greeley, Byers and Limon. * WHEN...Until 3 PM today. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling, especially in open areas. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ Gimmestad
143 WWUS45 KBOU 092056 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 256 PM MDT Mon Oct 9 2017 ...SNOW DIMINISHING AS WINTER STORM WEAKENS AND MOVES EAST... .Snow was diminishing to light showers across northern Colorado at mid afternoon. The snow will end by early evening. Snowfall totals for this storm were generally 6 to 12 inches in the higher mountains and Front Range foothills, with 3 to 7 inches in areas near the foothills and 1 to 5 inches on the plains just east of Interstate 25. COZ033>036-092200- /O.EXP.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Estes Park, Glendevey, Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 256 PM MDT Mon Oct 9 2017 ...WINTER STORM WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON... Scattered light snow showers will end later this afternoon. $$ COZ039>041-092200- /O.EXP.KBOU.WS.W.0013.000000T0000Z-171009T2100Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 256 PM MDT Mon Oct 9 2017 ...WINTER STORM WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON... Scattered light snow showers will end later this afternoon. $$ COZ042-043-045-046-092200- /O.EXP.KBOU.WW.Y.0024.000000T0000Z-171009T2100Z/ Northeast Weld County-Central and South Weld County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 256 PM MDT Mon Oct 9 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 PM MDT THIS AFTERNOON... Areas of light snow will end by early evening. Little or no additional accumulation is expected. $$ Gimmestad
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 4:14 AM MDT | Winter Weather Advisory | BOU | Adams, Arapahoe, Elbert, Grand, Jackson, Lincoln and 3 more | 35 hr |
| Oct 8, 4:18 AM MDT | Freeze Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 54 hr |
Nearby
Winter Storm Warnings in Colorado, 2017Every winter storm warning in 2017
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.