Longmont, CO

4:06 AM MDT on May 19, 2013 (GMT -0600)
Elev: 5023 ft
Lon: 105.1° W
Lat: 40.2° N
Source
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News
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
More News Articles

Longmont Weather at a Glance

Updated 4:06 AM MDT
Elevation
5043 ft
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Now
Overcast
Overcast
Temperature
48.6 °F
Feels Like 49 °F
Wind(mph)
2.0
Sunrise / Set
5:40 AM
8:13 PM
Moon
Waxing Gibbous
Today
Thunderstorm 75 °F
T-storms
30% chance of precipitation
Tonight
Partly Cloudy 45 °F
Partly Cloudy
20% chance of precipitation
Tomorrow
Chance of a Thunderstorm 68 | 43 °F
Chance of T-storms
40% chance of precipitation
Tuesday
Partly Cloudy 81 | 41 °F
Partly Cloudy
Wednesday
Partly Cloudy 75 | 48 °F
Partly Cloudy
Thursday
Chance of a Thunderstorm 88 | 50 °F
Chance of a Thunderstorm
20% chance of precipitation
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
29.85 in
Visibility
10.0 miles
Clouds
Overcast 12000 ft
Moisture
Humidity
65%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KEIK 190955Z AUTO 00000KT 10SM OVC120 11/03 A2985 RMK AO2 T01050028
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Windchill
49 °F
Dew Point
37 °F
Wind
Speed / Dir
2.0 mph from NW
Wind Gust
3.0 mph
Health
UV
0.0 out of 16
Pollen
9.20 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
No Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Sunday
tstorms Partly cloudy with rain showers, then thunderstorms and rain showers in the afternoon. High of 75F. Winds from the WNW at 5 to 10 mph. Chance of rain 30%.
Sunday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain, then a chance of rain after midnight. Low of 45F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.
Monday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 68F. Winds from the NW at 5 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancerain Mostly cloudy with a chance of rain. Low of 43F. Winds from the NW at 5 to 15 mph. Chance of rain 40%.
Tuesday
partlycloudy Partly cloudy. High of 81F. Winds from the NW at 5 to 10 mph.
Tuesday Night
nt_clear Partly cloudy in the evening, then clear. Low of 41F. Winds less than 5 mph.
Wednesday
partlycloudy Clear in the morning, then partly cloudy. High of 75F. Winds from the North at 5 to 15 mph shifting to the ESE in the afternoon.
Wednesday Night
nt_clear Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear. Low of 48F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Thursday
partlycloudy Clear in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 88F. Winds from the East at 5 to 15 mph. Chance of rain 20%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 50F. Winds from the East at 5 to 15 mph. Chance of rain 40% with rainfall amounts near 0.3 in. possible.
Friday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 52F. Winds from the SSE at 5 to 15 mph. Chance of rain 40%.
Saturday
clear Clear. High of 95F. Winds from the NW at 5 to 15 mph shifting to the ESE in the afternoon.
Saturday Night
nt_partlycloudy Clear. Low of 55F. Winds from the NNE at 5 to 10 mph shifting to the WNW after midnight.
Sunday
partlycloudy Partly cloudy. High of 97F. Winds from the WSW at 5 to 10 mph shifting to the South in the afternoon.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the SW at 5 to 15 mph shifting to the WNW after midnight.
Monday
clear Clear. High of 88F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 48F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 48F. Winds less than 5 mph. Chance of rain 20%.
Wednesday
partlycloudy Partly cloudy. High of 82F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds less than 5 mph.
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Weather Forecast for Longmont CO

View Calendar 10-Day Forecast for station KCOLONGM64

Sunday, 19
Thunderstorm
75 | 45 °F
T-storms
Chance of
Precipitation
30%
Monday, 20
Chance of a Thunderstorm
68 | 43 °F
Chance of T-storms
Chance of
Precipitation
40%
Tuesday, 21
Partly Cloudy
81 | 41 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 22
Partly Cloudy
75 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 23
Chance of a Thunderstorm
88 | 50 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Friday, 24
Chance of a Thunderstorm
91 | 52 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Saturday, 25
Clear
95 | 55 °F
Clear
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
97 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Clear
88 | 48 °F
Clear
Chance of
Precipitation
0%
Tuesday, 28
Chance of a Thunderstorm
86 | 48 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Sunday
tstorms Partly cloudy with rain showers, then thunderstorms and rain showers in the afternoon. High of 75F. Winds from the WNW at 5 to 10 mph. Chance of rain 30%.
Sunday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain, then a chance of rain after midnight. Low of 45F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 36 72 | 34 64 | 32 52 | 36
Wind 9 mph West 9 mph WNW 6 mph WNW 5 mph NW
Humidity 60% 23% 28% 52%
Chance of Precip. 20% 30% 30% 20%
Cloud Cover 53% 68% 75% 68%
Conditions Rain Showers Thunderstorm Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:40 AM
8:13 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.73], Average RMSE [2.24]
The National Weather Service forecast quality is poor. MaxT RMSE [3.57], Average RMSE [2.34] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 68F. Winds from the NW at 5 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancerain Mostly cloudy with a chance of rain. Low of 43F. Winds from the NW at 5 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 36 63 | 36 57 | 37 50 | 39
Wind 6 mph WNW 8 mph NNW 12 mph North 5 mph NW
Humidity 73% 37% 47% 63%
Chance of Precip. 20% 40% 40% 40%
Cloud Cover 78% 91% 88% 69%
Conditions Chance of Rain Chance of a Thunderstorm Chance of Rain Chance of Rain
Sunrise & Sunset
5:40 AM
8:14 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.56], Average RMSE [2.23]
The National Weather Service forecast quality is poor. MaxT RMSE [3.98], Average RMSE [2.43] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 81F. Winds from the NW at 5 to 10 mph.
Tuesday Night
nt_clear Partly cloudy in the evening, then clear. Low of 41F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 37 73 | 36 64 | 36 48 | 37
Wind 7 mph WNW 8 mph NNW 6 mph NNE 2 mph SSW
Humidity 80% 25% 33% 65%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 69% 61% 50% 3%
Conditions Mostly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:39 AM
8:15 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.95], Average RMSE [2.96]
The National Weather Service forecast quality is poor. MaxT RMSE [4.35], Average RMSE [2.53] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear in the morning, then partly cloudy. High of 75F. Winds from the North at 5 to 15 mph shifting to the ESE in the afternoon.
Wednesday Night
nt_clear Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear. Low of 48F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 34 73 | 39 68 | 43 54 | 45
Wind 3 mph West 11 mph East 9 mph SE 2 mph East
Humidity 65% 28% 39% 71%
Chance of Precip. 0% 0% 20% 10%
Cloud Cover 0% 38% 65% 18%
Conditions Clear Partly Cloudy Chance of a Thunderstorm Clear
Sunrise & Sunset
5:38 AM
8:16 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.96], Average RMSE [2.42]
The National Weather Service forecast quality is poor. MaxT RMSE [5.64], Average RMSE [3.46] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Thursday
partlycloudy Clear in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 88F. Winds from the East at 5 to 15 mph. Chance of rain 20%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 50F. Winds from the East at 5 to 15 mph. Chance of rain 40% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 43 84 | 46 75 | 52 61 | 54
Wind 1 mph East 11 mph ESE 14 mph East 3 mph ESE
Humidity 80% 25% 44% 76%
Chance of Precip. 10% 10% 30% 20%
Cloud Cover 0% 13% 47% 13%
Conditions Clear Clear Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:37 AM
8:16 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.36], Average RMSE [2.77]
The National Weather Service forecast quality is poor. MaxT RMSE [6.08], Average RMSE [3.57] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 52F. Winds from the SSE at 5 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 50 90 | 50 79 | 52 63 | 52
Wind 3 mph SSE 15 mph SE 12 mph East 2 mph SW
Humidity 96% 26% 38% 65%
Chance of Precip. 10% 10% 30% 20%
Cloud Cover 99% 14% 49% 18%
Conditions Overcast Clear Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:37 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.12], Average RMSE [5.76]
The National Weather Service forecast quality is poor. MaxT RMSE [6.95], Average RMSE [4.96] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Saturday
clear Clear. High of 95F. Winds from the NW at 5 to 15 mph shifting to the ESE in the afternoon.
Saturday Night
nt_partlycloudy Clear. Low of 55F. Winds from the NNE at 5 to 10 mph shifting to the WNW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 43 93 | 43 86 | 39 64 | 39
Wind 4 mph West 11 mph ESE 9 mph East 7 mph NW
Humidity 67% 16% 18% 41%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 0% 0% 0% 38%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
5:36 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.10], Average RMSE [5.88]
The National Weather Service forecast quality is poor. MaxT RMSE [7.49], Average RMSE [5.73] : Use NWS
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 97F. Winds from the WSW at 5 to 10 mph shifting to the South in the afternoon.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the SW at 5 to 15 mph shifting to the WNW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 32 70 | 30 81 | 23 64 | 21
Wind 7 mph West 7 mph SE 13 mph WNW 1 mph WNW
Humidity 38% 23% 11% 19%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 11% 78% 50% 33%
Conditions Clear Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:36 AM
8:19 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [9.05], Average RMSE [6.97]
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Monday
clear Clear. High of 88F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 48F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 21 84 | 25 77 | 27 52 | 28
Wind 4 mph West 5 mph ESE 2 mph ESE 3 mph North
Humidity 33% 10% 14% 38%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 13% 20% 26% 35%
Conditions Clear Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:35 AM
8:20 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [10.15], Average RMSE [7.70]
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 48F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 30 70 | 37 77 | 45 52 | 46
Wind 3 mph West 6 mph SE 1 mph SSW 2 mph NW
Humidity 48% 30% 30% 81%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 43% 39% 35% 41%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:34 AM
8:21 PM
Source: BestForecast at 1:52 AM MDT on May 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 82F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 48 68 | 48 75 | 48 50 | 45
Wind 3 mph West 3 mph SE 1 mph NW 2 mph NW
Humidity 100% 50% 37% 80%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 48% 55% 62% %
Conditions Fog Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Active Notice: Public Information Statement  (US Severe Weather)
History & Almanac
May 19, 2013 Max Temp Min Temp
Normal (KBJC) 69 °F 45 °F
Record (KBJC) 87 °F (2005) 37 °F (2003)
Yesterday 79.0 °F 51.6 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
OZONE
Yesterday Good
PM10
Current Good
OZONE
Current Good
PM2.5
Sunday Good
OZONE
Sunday Good
PM2.5
Monday Moderate
OZONE
Monday Good
PM2.5
Astronomy
May. 19, 2013 Rise Set
Actual Time 5:40 AM MDT 8:13 PM MDT
Civil Twilight 5:09 AM MDT 8:44 PM MDT
Nautical Twilight 4:31 AM MDT 9:23 PM MDT
Astronomical Twilight 3:47 AM MDT 10:07 PM MDT
Moon 2:19 PM MDT 2:06 AM MDT
Length Of Visible Light 15h 34m
Length of Day
14h 32m
Tomorrow will be 1m 42s longer.
Waxing Gibbous, 62% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
64 °F
La Junta
64 °F
Lamar
64 °F
Springfield
61 °F
Pueblo
60 °F
Burlington
26 °F
Monarch Pass
30 °F
Copper Mountain
30 °F
Leadville
32 °F
Mount Werner
33 °F
Telluride
Record Extremes
Snow Depth
Station Depth Elevation
Copeland Lake 0 in 8600 ft
Niwot 28 in 9910 ft
Wild Basin 24 in 9560 ft
University Camp 48 in 10300 ft
Bear Lake 33 in 9500 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Erie 51 °F Overcast 3:55 AM MDT
Broomfield 54 °F Mostly Cloudy 3:55 AM MDT
Fort Collins 52 °F Mostly Cloudy 3:55 AM MDT
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Flight To ETA Status
No flights were found.
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Type Condition
Flight Rule: VFR (KEIK)
Wind Speed: 0.0 kts.
Wind Dir: 306° (NW)
Ceiling: 12000 ft

METAR KEIK 190955Z AUTO 00000KT 10SM OVC120 11/03 A2985 RMK AO2 T01050028

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Event data courtesy eviesays.com
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Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Longmont CO , Longmont, CO 49 °F 49 °F 37 °F 64% South  at  0 mph 0.00 in / hr 4927 ft 3:36 AM MDT MADIS
APRSWXNET Longmont CO , Longmont, CO 42 °F 42 °F 35 °F 75% North  at  0 mph 0.00 in / hr 5055 ft 3:47 AM MDT MADIS
Northridge Elementary School, Longmont, CO 48.6 °F 49 °F 37 °F 65% NW  at  2.0 mph 0.00 in / hr 5043 ft 4:06 AM MDT Rapid Fire
Stoney Ridge, Longmont, CO 49.1 °F 49 °F 36 °F 59% North  at  0.0 mph 0.00 in / hr 5062 ft 4:06 AM MDT Rapid Fire  
APRSWXNET Boulder CO , Longmont, CO 49 °F 49 °F 37 °F 64% North  at  0 mph 0.00 in / hr 5279 ft 3:42 AM MDT MADIS
North Longmont, Horizon Park, Longmont, CO 46.0 °F 46 °F 38 °F 73% WNW  at  0.0 mph 0.00 in / hr 5040 ft 4:05 AM MDT Normal  
Bohn Farm, Longmont, CO 48.6 °F 49 °F 38 °F 68% West  at  0.0 mph 0.00 in / hr 5000 ft 4:06 AM MDT Rapid Fire  
Wolf Creek, Longmont, CO 47.1 °F 47 °F 37 °F 68% North  at  0.0 mph 0.00 in / hr 4979 ft 4:05 AM MDT Rapid Fire  
Ute Creek Golf Course, Longmont, CO 46.8 °F 47 °F 38 °F 72% NNE  at  0.0 mph 0.00 in / hr 5014 ft 3:59 AM MDT Normal
FoxHill, Longmont, CO 50.5 °F - 36 °F 57% West  at  0.0 mph 0.00 in / hr 5049 ft 4:06 AM MDT Normal
NW Longmont, Longmont, CO 47.8 °F 48 °F 33 °F 57% NNW  at  0.0 mph 0.00 in / hr 5134 ft 4:00 AM MDT Normal
Lake Park Estates, Longmont, CO 47.5 °F 48 °F 37 °F 66% North  at  0.0 mph 0.00 in / hr 5093 ft 4:05 AM MDT Normal  
Trail Ridge Middle School, Longmont, CO 50.4 °F - 39 °F 65% WNW  at  0.0 mph 0.00 in / hr 4984 ft 4:06 AM MDT Rapid Fire
McIntosh Lake, Longmont, CO 50.4 °F - 37 °F 60% WSW  at  0.0 mph 0.00 in / hr 5022 ft 4:05 AM MDT Normal  
Fox Meadow, Longmont, CO 50.7 °F - 37 °F 60% WSW  at  0.0 mph 0.00 in / hr 4980 ft 3:59 AM MDT Normal
The Shores, Longmont, CO 46.1 °F 46 °F 33 °F 60% North  at  0.0 mph 0.00 in / hr 5115 ft 4:05 AM MDT Normal  
Westview Middle School, Longmont, CO 45.9 °F 46 °F 37 °F 70% ESE  at  0.0 mph 0.00 in / hr 5069 ft 4:06 AM MDT Rapid Fire
Southmoor Park, Longmont, CO 49.6 °F 50 °F 38 °F 65% SE  at  0.0 mph 0.00 in / hr 4989 ft 4:06 AM MDT Rapid Fire  
Schlagel, Longmont, CO 47.1 °F 47 °F 38 °F 70% WNW  at  0.0 mph 0.00 in / hr 5023 ft 4:06 AM MDT Normal  
North Longmont: Morey, Longmont, CO 44.4 °F 44 °F 33 °F 65% North  at  0.0 mph 0.00 in / hr 5120 ft 4:06 AM MDT Rapid Fire  
APRSWXNET Longmont CO , Mead, CO 49 °F 49 °F 35 °F 58% WNW  at  0 mph 0.00 in / hr 5577 ft 3:49 AM MDT MADIS
Meadow View, Longmont, CO 48.3 °F 48 °F 37 °F 65% West  at  0.0 mph 0.00 in / hr 5046 ft 4:05 AM MDT Normal  
Eagle Crest Elementary School, Longmont, CO 46.9 °F 47 °F 36 °F 65% WNW  at  0.0 mph 0.00 in / hr 4942 ft 4:06 AM MDT Rapid Fire
75th and Nelson, Longmont, CO 50.0 °F - 34 °F 53% SW  at  2.0 mph 0.00 in / hr 5060 ft 4:06 AM MDT Normal  
Blue Mountain Elementary School, Longmont, CO 46.4 °F 46 °F 38 °F 72% WNW  at  1.0 mph 0.00 in / hr 5069 ft 4:06 AM MDT Rapid Fire
meadow mountain, Longmont, CO 46.5 °F 46 °F 37 °F 69% SW  at  0.0 mph 0.00 in / hr 5072 ft 3:52 AM MDT Normal  
Portico, Longmont, CO 42.8 °F 43 °F 36 °F 77% NNW  at  0.0 mph 0.00 in / hr 5055 ft 4:02 AM MDT Normal  
Yellowstone Vistas, Longmont, CO 48.6 °F 49 °F 35 °F 59% SSW  at  3.0 mph 0.00 in / hr 5185 ft 3:54 AM MDT Normal
APRSWXNET Longmont CO , Erie, CO 52 °F - 41 °F 66% NNW  at  0 mph 0.00 in / hr 4780 ft 3:47 AM MDT MADIS
Mead High School, Longmont, CO 50.7 °F - 40 °F 67% ESE  at  1.0 mph 0.00 in / hr 4948 ft 4:06 AM MDT Rapid Fire
Mulligan Lake Estates, Mead, CO 47.5 °F 48 °F 39 °F 71% NW  at  0.0 mph 0.00 in / hr 5010 ft 4:00 AM MDT Normal  
Niwot, CO 52.7 °F - 27 °F 37% ENE  at  0.0 mph 0.00 in / hr 5200 ft 4:05 AM MDT Normal  
Niwot, CO 49.5 °F 50 °F 34 °F 55% ESE  at  0.0 mph 0.00 in / hr 5190 ft 4:06 AM MDT Rapid Fire  
Niwot 3W, (BES Weather), CO 45.7 °F 44 °F 31 °F 57% SW  at  3.9 mph 0.00 in / hr 5178 ft 4:06 AM MDT Rapid Fire  
Table Mountain, East Slope, Longmont, CO 55.3 °F - 30 °F 38% North  at  1.0 mph - / hr 5420 ft 3:55 AM MDT Normal  
Centennial Elementary School, Firestone, CO 50.0 °F - 39 °F 66% SE  at  1.0 mph 0.00 in / hr 4895 ft 4:06 AM MDT Rapid Fire
APRSWXNET Mead CO , Mead, CO 49 °F 49 °F 37 °F 63% NNW  at  0 mph 0.00 in / hr 5104 ft 3:50 AM MDT MADIS
APRSWXNET Erie CO , Frederick, CO 52 °F - 35 °F 52% West  at  0 mph 0.00 in / hr 5131 ft 3:49 AM MDT MADIS
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Public Information Statement
Mobile & Email Alerts Statement as of 2:59 am MDT on May 19, 2013

... Today in Metro Denver weather history...

18-19 in 2011... a severe thunderstorm in Central Adams County
        produced large hail and heavy rainfall on the 18th. Large
        hail from 1 inch to 1 3/4 inches in diameter... was reported
        in Commerce City... 2 miles south-southeast of Federal
        Heights... Northglenn... and 2 miles south of Thornton. In
        Commerce City... the storm uprooted trees and knocked out
        power lines. A carport was lifted off the ground and
        struck the power lines overhead. Heavy rain... from 1.0 to
        1.5 inches fell in less than 2 hours in Commerce City and
        near Brighton. The combination of hail and strong winds
        broke windows in Northglenn. In the foothills... moderate to
        heavy snow showers developed overnight. Storm totals
        included: 10.5 inches at Gold Hill... 9.5 inches... 3 miles
        west of jamestown; 9 inches at lake eldora; with 6 inches...
        11 miles southwest of Gilpin and 4 miles east-northeast of
        Nederland. At Denver International Airport... total rainfall
        over the 2-day period totaled 1.71 inches. In addition... a
        peak wind gust to 37 mph was recorded on the 18th.
18-20 in 1915... 3.9 inches of snow fell in the city. The estimated
        amount of snow that melted as it fell was 6.2 inches which
        would have totaled an estimated 10.1 inches of snowfall.
        Precipitation totaled 1.03 inches. North winds were
        sustained to 32 mph on the 18th. Low temperatures dipped
        to 25 degrees on both the 18th and 20th... establishing
        record minimums for both dates.
      In 1988... prolonged heavy rainfall drenched Metro Denver.
        The event began when heavy thunderstorms on the 18th caused
        some street flooding and power outages... followed by steady
        rain on the 19th and 20th. Rain amounts across Metro
        Denver totaled 3 to 4 inches. Rainfall totaled 3.71 inches
        at Stapleton International Airport where north winds gusted
        to 39 mph on the 20th. Four to eight inches of snow fell in
        the foothills above 7 thousand feet.
19 in 1927... southeast winds were sustained to 40 mph with gusts
        to 44 mph.
      In 1956... a thunderstorm wind gust to 54 mph was recorded at
        Stapleton International Airport.
      In 1969... hail stones to 1 inch in diameter were measured in
        Arvada and Aurora. Some minor damage was reported.
        Pea to Marble size hail fell in Westminster.
      In 1972... a tornado was reported by aircraft about 5 to 10
        miles east of Parker.
      In 1988... lightning started a fire at a house in the Denver
        suburb of Greenwood Village... causing 2 thousand dollars in
        damage.
      In 1991... strong thunderstorms over east Metro Denver produced
        wind gusts of 56 to 60 mph. The strong winds downed power
        lines... trees... and fences at some locations in Aurora.
        Thunderstorm outflow winds gusted to 60 mph at Stapleton
        International Airport.
      In 1994... severe thunderstorms rumbled across Metro Denver.
        The storms produced wind gusts averaging 65 mph and hail up
        to dime size. Wind gusts to 77 mph were recorded in
        Brighton. Numerous trees and power poles were downed by
        the winds. One power pole fell onto spectators at a High
        School graduation ceremony in Commerce City... injuring 6
        people. In Fort Lupton... trees fell onto 2 parked cars...
        knocking out the windshields. Hail to 3/4 inch in diameter
        was reported in Littleton. A thunderstorm wind gust to 52
        mph was recorded at Stapleton International Airport.
      In 1995... a slow moving tornado... which was mainly discernible
        by its dust and debris cloud... was spotted 2 miles northeast
        of Denver International Airport or about 10 miles
        northwest of Bennett. No damage was reported.
      In 2007... lightning struck a 33-ft statue of jesus at mother
        cabrini shrine... in the foothills west of Golden. The blast
        broke off one of the statue's arms and a hand... and also
        damaged a foot. It cost an estimated $200000 to repair.
      In 2009... lightning struck the roof of a residence in Highlands
        Ranch. The home was not a total loss... but the fire caused
        extensive damage.
      In 2010... a thunderstorm produced hail up to 7/8 inch in
        diameter in Thornton.
19-20 in 1864... a devastating major flash flood occurred on the
        normally dry and Sandy Cherry Creek in Denver. The flood
        was caused by heavy thunderstorm rainfall and hail over the
        Palmer Ridge to the south of the city in both the Cherry
        Creek and Plum Creek basins. Nineteen deaths occurred along
        the South Platte river and Cherry Creek in Denver. The
        torrent swept cattle and sheep along with large trees and
        houses before it washing out several bridges... and moving
        large structures from their foundations. All city records
        were destroyed when city Hall washed away. The Rocky
        Mountain news building... built on stilts in the middle of the
        creek... was totally destroyed by the raging waters... which
        were as deep as 5 feet on the morning of the 20th. Once
        the flood waters receded... much sand and gravel was left
        behind. Property damage from the flood was estimated at
        nearly one million dollars. This was the first major
        flood of record in the city.


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