Alert archive / Colorado / Special Weather Statements in 2017
Special Weather Statement, NWS Pueblo, CO
NWS Pueblo, CO issued this special weather statement at Sep 17, 2017, 9:55 PM MDT for Baca County, Colorado. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 17, 2017, 9:55 PM MDT (03:55 UTC)
- Expired
- Sep 17, 2017, 11:00 PM MDT
- In force
- 65 min
- Issued by
- NWS Pueblo, CO
County Baca County, CO
The radar
The Amarillo radar (KAMA), 214 km from the middle of the area, began a volume at 03:57 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.9 hours before the alert went out and 214 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
- 680 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 1580 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- -35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pueblo, CO wrote its last area forecast discussion before this special weather statement went out at Sep 17, 3:18 PM MDT, 6 hours 37 minutes earlier.
Area forecast discussion, Sep 17, 3:18 PM MDT, 6 hours 37 minutes before
Area Forecast Discussion National Weather Service Pueblo CO 318 PM MDT Sun Sep 17 2017 .SHORT TERM...(This evening through Monday) Issued at 318 PM MDT Sun Sep 17 2017 Will keep discussion brief due to ongoing active meteorological conditions with near-short range meteorological issues continuing to be temperatures, pops and thunderstorm intensity potential. CWFA currently experiencing areas of showers and thunderstorms, with some stronger storms over southern sections in combination with afternoon temperatures running below mid-September climatological averages. Latest PV analysis, real-time data, computer simulations and forecast model soundings indicate that relatively active meteorological conditions will continue into this evening(with some stronger to possibly marginally severe storms possible over primarily southern and southeastern sections of the forecast district as evidenced by Severe Thunderstorm Watch #486 which is in effect until 10 PM MDT). In addition, minimum temperatures tonight are projected to run near to slightly above mid-September seasonal averages. For Monday, expect generally tranquil, dry and warmer conditions over the forecast district as dry zonal to southwesterly upper flow develops over the forecast district, which will allow maximum temperatures to climb above seasonal averages by Monday afternoon. .LONG TERM...(Monday night through Sunday) Issued at 318 PM MDT Sun Sep 17 2017 Monday night-Tuesday...Westerly flow increases across the region Monday night and Tuesday, as another embedded wave translates across the Northern Rockies. Increasing westerly flow will lead to a breezy to windy conditions across the higher terrain, with the downslope flow developing lee troughing across the I-25 corridor, leading to breezy conditions developing overnight along and west of I-25. Lee trough kicks out across the eastern plains through the day Tuesday, with breezy south to southwest winds of 15 to 30 mph expected across the lower elevations Tuesday afternoon. This, along with dry and above seasonal temperatures in the 80s to lower 90s, will lead to elevated fire danger on Tuesday, and depending on fuel status, may need fire weather highlights for portions of the area. Tuesday night-Thursday...Westerly flow aloft moderates through Wednesday with southwest flow aloft expected to slowly increase once again on Thursday, ahead of a deep upper trough digging into the Great Basin. Passing Northern Rockies system sends a dry cold front across the eastern Plains Tuesday night, with slightly cooler temperatures expected on Wedensday. Dry weather and warming temperatures expected on Thursday, with high back to above seasonal levels. Friday-Sunday...A cooler and more unsettled weather pattern takes shape across the area, with longer range models continuing to differ on timing and strength of the upper trough/low digging into the Great Basin on Friday, and its ejection across the Rockies through the weekend. Although this remains well into the future, the pattern supports the potential for severe weather across the eastern Plains early in the period, along with the potential for higher elevation snowfall and cooler temperatures area wide later in weekend. && .AVIATION...(For the 00Z TAFS through 00Z Monday evening) Issued at 318 PM MDT Sun Sep 17 2017 From this afternoon into this evening the KCOS, KPUB and KALS taf sites have the potential of experiencing showers or thunderstorms with meteorological conditions then expected to improve after midnight with VFR conditions becoming prominent on Monday. && .PUB WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...77 LONG TERM...MW AVIATION...77
Hazardous weather outlook, Sep 17, 11:13 AM MDT, 10 hours 42 minutes before
Hazardous Weather Outlook National Weather Service Pueblo CO 1113 AM MDT Sun Sep 17 2017 COZ058>089-093>099-181715- Western Mosquito Range/East Lake County Above 11000 Ft- Leadville Vicinity/Lake County Below 11000 Ft- Eastern Sawatch Mountains above 11000 Ft- Western Chaffee County Between 9000 and 11000 Ft- Central Chaffee County Below 9000 Ft- Western Mosquito Range/East Chaffee County above 9000Ft- Saguache County West of Continental Divide Below 10000 Ft- Saguache County East of Continental Divide below 10000 Ft- La Garita Mountains Above 10000 Ft- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft- Eastern San Juan Mountains Above 10000 Ft- Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft- Alamosa Vicinity/Central San Luis Valley Below 8500 Ft- Southern San Luis Valley- Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft- Northern Sangre de Cristo Mountains above 11000 Ft- Southern Sangre de Cristo Mountains Between 7500 and 11000 Ft- Southern Sangre de Cristo Mountains Above 11000 Ft- Northwestern Fremont County Above 8500Ft- Western/Central Fremont County Below 8500 Ft- Wet Mountain Valley Below 8500 Ft- Wet Mountains between 6300 and 10000Ft- Wet Mountains above 10000 Ft- Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And 11000 Ft-Pikes Peak above 11000 Ft- Canon City Vicinity/Eastern Fremont County- Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft- Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Ft-Pueblo Vicinity/Pueblo County Below 6300 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft- Trinidad Vicinity/Western Las Animas County Below 7500 Ft- Crowley County-La Junta Vicinity/Otero County- Eastern Las Animas County-Western Kiowa County- Eastern Kiowa County-Las Animas Vicinity/Bent County- Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County- 1113 AM MDT Sun Sep 17 2017 This hazardous weather outlook is for portions of central...east central...south central and southeast Colorado. .DAY ONE...This Afternoon and Tonight Scattered thunderstorms are expected over the mountains and high valley locations this afternoon and evening, with isolated to scattered thunderstorms over the southeast plains into the late night hours. There will be the possibility of severe storms, mainly over southern Pueblo, southern Otero, Huerfano and Las Animas counties. These areas could see hail an inch in diameter or larger, and wind gusts around 60 mph. However, an isolated brief tornado cannot be ruled out. All storms will have the threat of lightning and gusty outflow winds. .DAYS TWO THROUGH SEVEN...Monday through Saturday On Tuesday and Thursday, fire danger will be elevated over much of the area as gusty winds and low humidities combine to produce near critical fire weather conditions. Friday and Saturday, an early fall storm system will move into the region from the Pacific Northwest. This system could bring strong thunderstorms to the plains on Friday and some snow to the mountains by Saturday. Additionally, temperatures could drop to near freezing in the mountains Saturday night. .SPOTTER INFORMATION STATEMENT... Weather conditions that meet reporting criteria for spotters will be possible this afternoon and evening, especially over southern Pueblo, southern Otero, Huerfano and Las Animas counties.
In the hours before
Local storm report, Sep 17, 4:07 PM MDT, 5 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
407 PM MDT SUN SEP 17 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0351 PM HAIL 6 W KIM 37.25N 103.46W
09/17/2017 M1.50 INCH LAS ANIMAS CO STORM CHASER
&&Special weather statement, Sep 17, 4:29 PM MDT, 5 hours 26 minutes before
Special Weather Statement National Weather Service Pueblo CO 429 PM MDT SUN SEP 17 2017 COZ094-099-172300- Springfield Vicinity/Baca County CO-Eastern Las Animas County CO- 429 PM MDT SUN SEP 17 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BACA AND EAST CENTRAL LAS ANIMAS COUNTIES UNTIL 500 PM MDT... At 429 PM MDT, Doppler radar was tracking a strong thunderstorm 7 miles southeast of Kim, or 37 miles southwest of Springfield, moving east at 30 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. This storm will remain over mainly rural areas of southwestern Baca and east central Las Animas Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && A severe thunderstorm watch remains in effect until 1000 PM MDT for southeastern Colorado. LAT...LON 3712 10334 3726 10333 3735 10289 3705 10287 TIME...MOT...LOC 2229Z 272DEG 33KT 3719 10324 mw
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 6:05 PM MDT | Special Weather Statement | PUB | Las Animas | 25 min |
| Sep 17, 6:35 PM MDT | Special Weather Statement | PUB | Las Animas | 25 min |
| Sep 17, 7:00 PM MDT | Special Weather Statement | PUB | 30 min | |
| Sep 17, 7:42 PM MDT | Special Weather Statement | PUB | 33 min | |
| Sep 18, 2:52 PM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 6 more | 27 hr |
Nearby
Special Weather Statements in Colorado, 2017Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.