Alert archive / Colorado / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 259, NWS Denver/Boulder, CO

July 29, 2018Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 29, 2018, 9:25 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 35 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
Jul 29, 2018, 9:25 PM MDT (03:25 UTC)
Expired
Jul 29, 2018, 10:00 PM MDT
In force
35 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
2.0 in
Wind
70.0 mph

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 46 km from the middle of the area, began a volume at 03:24 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 3.4 hours before the alert went out and 131 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2018-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 943 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2018-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
943 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
1653 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

895 
WUUS55 KBOU 300325
SVRBOU
COC039-073-300400-
/O.NEW.KBOU.SV.W.0259.180730T0325Z-180730T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
925 PM MDT SUN JUL 29 2018

The National Weather Service in Denver Colorado has issued a

* Severe Thunderstorm Warning for...
  Southeastern Elbert County in east central Colorado...
  Southwestern Lincoln County in east central Colorado...

* Until 1000 PM MDT.

* At 925 PM MDT, severe thunderstorms were located along a line
  extending from 9 miles north of Kutch to near Yoder, or along a
  line extending from 17 miles southwest of Limon to 30 miles east of
  Colorado Springs, moving south at 55 mph.

  HAZARD...Two inch hail and 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. People and animals 
           outdoors will be injured. Expect hail damage to roofs, 
           siding, windows, and vehicles.

* Locations impacted include...
  Forder and Kutch. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are dangerous storms. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to shelter inside a strong building,  and stay away from
windows.

&&

LAT...LON 3898 10405 3911 10381 3852 10363 3852 10405
TIME...MOT...LOC 0325Z 353DEG 50KT 3904 10384 3881 10426 

HAIL...2.00IN
WIND...70MPH
 
$$

GIMMESTAD
2 follow-up statements
792 
WWUS55 KBOU 300347
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
947 PM MDT SUN JUL 29 2018

COC039-300356-
/O.CAN.KBOU.SV.W.0259.000000T0000Z-180730T0400Z/
Elbert CO-
947 PM MDT SUN JUL 29 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ELBERT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3867 10405 3883 10377 3852 10365 3852 10405
TIME...MOT...LOC 0346Z 357DEG 44KT 3880 10383 3857 10425 

$$

COC073-300400-
/O.CON.KBOU.SV.W.0259.000000T0000Z-180730T0400Z/
Lincoln CO-
947 PM MDT SUN JUL 29 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM MDT
FOR SOUTHWESTERN LINCOLN COUNTY...

At 946 PM MDT, severe thunderstorms were located along a line
extending from 7 miles south of Kutch to 10 miles east of Hanover, or
along a line extending from 33 miles south of Limon to 28 miles
northeast of Pueblo, moving south at 50 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees. People and 
         animals outdoors will be injured. Expect hail damage to 
         roofs, siding, windows, and vehicles.

These severe thunderstorms will remain over mainly rural areas of
southwestern Lincoln County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.

&&

LAT...LON 3867 10405 3883 10377 3852 10365 3852 10405
TIME...MOT...LOC 0346Z 357DEG 44KT 3880 10383 3857 10425 

HAIL...1.50IN
WIND...60MPH
 
$$

GIMMESTAD
296 
WWUS55 KBOU 300400
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
1000 PM MDT SUN JUL 29 2018

COC073-300410-
/O.EXP.KBOU.SV.W.0259.000000T0000Z-180730T0400Z/
Lincoln CO-
1000 PM MDT SUN JUL 29 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LINCOLN COUNTY
HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

LAT...LON 3867 10405 3883 10377 3852 10365 3852 10405
TIME...MOT...LOC 0400Z 353DEG 50KT 3862 10380 3839 10422 

$$

GIMMESTAD

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 29, 2:57 PM MDT, 6 hours 28 minutes earlier.

Area forecast discussion, Jul 29, 2:57 PM MDT, 6 hours 28 minutes before
Area Forecast Discussion
National Weather Service Denver/Boulder CO
257 PM MDT Sun Jul 29 2018

.SHORT TERM...(This evening through Monday)
Issued at 255 PM MDT Sun Jul 29 2018

Speed max in the northwesterly flow aloft is helping to produce
the severe strength and tornado-producing storms currently in
southeastern Wyoming. These storms are moving south-southeast to
enter our state soon, into the area of Enhanced Risk. Storms
further south over the central mountains and Palmer Divide are
expected to gain strength soon, though the strongest storms will
be further north. The northern storms are expected to continue
strong into Weld, Morgan and Logan counties at least into later
this afternoon. Forecasted updraft helicities remain high run to
run on the HRRR pushing into the northern plains. Will continue to
push the tornado threat as well as the very large damaging hail
and very strong damaging wind gusts messaging over that area. Cap
still remains pretty strong over the central urban corridor out
to Denver, as evidenced by the storms dissipating that move over
the area, lower surface temperatures and by the ACARS soundings.
Will still forecast for little storms in this area until this
evenings frontal push. A corridor of thicker smoke also seen on
visible satellite is stretched across the northern half of the
state may limit much further heating as well.

Plenty of shear and CAPE still available this evening when a cold
front will push down. This will bring a second round of storms
down the plains which will still have the potential of being
severe strength, and when the Denver area and central urban
corridor may have a better chance of seeing stronger storms.
Stratus, rain showers and possibly some fog in the upslope favored
areas are expected to fill in behind by midnight. With the speed
max aloft, still keeping a slight chance of seeing some thunder
overnight. Cold front is also expected to push the smoke out of
the area as well. Forecast soundings show the low level moisture
and stratus to hang on into Monday morning. Areas along the
foothills and Palmer Divide will likely see this as areas of fog,
causing low visibilities which may impact Monday morning rush
hour. Some lower elevations may see some fog as well. Some areas
of drizzle may occur, but some soundings show rain showers
remaining as well.

Upper trough will pass southeast over the area and high surface
pressure over the Great Plains will bring cooler temperatures to
the area Monday. as the speed max is over the central plains, may
continue to see some rain showers and isolated thunderstorms over
the southern half of the forecast area as well as in the mountains
where less stability will be above the inversion.

.LONG TERM...(Monday night through Sunday)
Issued at 255 PM MDT Sun Jul 29 2018

This week's weather will be dominated by the upper level ridge
building back across the region. Tuesday looks like a completely
dry day, with no storms expected anywhere in the forecast area. A
warming trend will begin Tuesday, and then remain in place through
the end of the week with high temperatures warming back into the
lower to mid 90s across the plains.

Some moisture will eventually build under the ridge, so a few
afternoon and early evening storms can be expected from Wednesday
onward. Most of these will stay over the mountains, but isolated
storms will still be possible on the plains. The majority of
these storms would produce just light rain and gusty outflow
winds.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 255 PM MDT Sun Jul 29 2018

Stratus has broken up over Denver, Boulder, and eastern Adams and
Arapahoe counties, but a strong cap remains, visible on ACARS
soundings, limiting thunderstorm development. Therefore areas
south and north and east will see the better chance for storms in
the 21z to 00z time frame. Then as a cold front pushes in with
north- northeast winds, another surge of thunderstorms on the
leading edge are expected, mainly in the 01z to 04z time frame.
Upslope behind the front will result in rain showers, then low
clouds and possible drizzle tonight, likely remaining in place
through Monday morning with IFR ceilings through 18z.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...Kriederman
LONG TERM...Barjenbruch
AVIATION...Kriederman
Hazardous weather outlook, Jul 29, 11:04 AM MDT, 10 hours 21 minutes before
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1104 AM MDT Sun Jul 29 2018

COZ030>051-301715-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
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-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
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-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1104 AM MDT Sun Jul 29 2018

...SEVERE THUNDERSTORMS EXPECTED ACROSS THE FRONT RANGE AND OVER
THE PLAINS TODAY...

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected once again this afternoon and
evening. Some storms will likely become severe with hail up to
baseball size, wind gusts to 80 mph, and isolated tornadoes.
Heavy rain and isolated flooding will also be possible. The best
chance for severe storms will be along and east of a line from
Cheyenne to just east of Denver International Airport to Limon.
Two rounds are likely to occur, one in the mid to late afternoon,
then another as a cold front pushes in in the early to mid
evening.

Conditions behind the front will result in stratus and areas of
fog overnight and into Monday morning, with some areas of drizzle
possible as well. Areas in the foothills and Palmer Divide may
experience poor visibility creating hazardous driving conditions
for the morning rush hour.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

It will be cool on Monday with a few showers or drizzle lingering
into the morning hours. Drier conditions will build across the
area through the afternoon.

The rest of the period will see warming temperatures and relatively
dry conditions. A few afternoon and evening thunderstorms can be
expected over the mountains Wednesday through Saturday, with just
a slight chance of storms on the plains. Most of those storms
would produce just light rain and gusty outflow winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is expected to be needed over the northeast
plains and possibly across the Urban Corridor this afternoon and
evening.

In the hours before

Local storm report, Jul 29, 7:41 PM MDT, 1 hour 44 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
741 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0737 PM     HAIL             2 NE MILTON RESERVOIR   40.26N 104.60W
07/29/2018  E1.25 INCH       WELD               CO   TRAINED SPOTTER

0726 PM     HAIL             EVANS                   40.38N 104.70W
07/29/2018  M2.00 INCH       WELD               CO   PUBLIC

0722 PM     HAIL             1 WNW GREELEY           40.43N 104.76W
07/29/2018  E1.75 INCH       WELD               CO   TRAINED SPOTTER

0721 PM     HAIL             4 WSW GREELEY           40.41N 104.80W
07/29/2018  M1.00 INCH       WELD               CO   TRAINED SPOTTER

0715 PM     HAIL             3 E LIMON               40.56N 105.01W
07/29/2018  M1.75 INCH       LARIMER            CO   STORM CHASER

0714 PM     HAIL             3 N LIMON               40.60N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   STORM CHASER

0708 PM     HAIL             FORT COLLINS            40.56N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0707 PM     HAIL             3 NNE MASONVILLE        40.52N 105.17W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0706 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M70 MPH          LINCOLN            CO   ASOS

0656 PM     HAIL             1 NW WELLINGTON         40.71N 105.02W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0655 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M68 MPH          LINCOLN            CO   ASOS

0652 PM     HAIL             10 NE CEDAR POINT       39.45N 103.68W
07/29/2018  M1.75 INCH       LINCOLN            CO   TRAINED SPOTTER

0651 PM     HAIL             1 SW WELLINGTON         40.69N 105.01W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0649 PM     HAIL             LIVERMORE               40.80N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0622 PM     HAIL             7 ENE VIRGINIA DALE     40.99N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0605 PM     HAIL             7 S ARICKAREE SCHOOL    39.64N 103.03W
07/29/2018  M2.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

0600 PM     HAIL             VIRGINIA DALE           40.95N 105.35W
07/29/2018  M2.50 INCH       LARIMER            CO   PUBLIC

0540 PM     HAIL             3 NW ELBA               39.95N 103.22W
07/29/2018  M1.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

            REPORTED MINOR FLOODING WITH 4 INCHES OF
            STANDING WATER IN HER YARD.

0532 PM     HAIL             11 S LAST CHANCE        39.57N 103.56W
07/29/2018  M2.00 INCH       WASHINGTON         CO   TRAINED SPOTTER

            HAIL COVERING THE GROUND.

0524 PM     TSTM WND DMG     7 E AKRON               40.16N 103.08W
07/29/2018                   WASHINGTON         CO   LAW ENFORCEMENT

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 7
            E AKRON. SEMI'S BLOWN OVER EAST OF AKRON
            ALONG HIGHWAY 34.

0507 PM     TSTM WND GST     AKRON                   40.16N 103.21W
07/29/2018  M74 MPH          WASHINGTON         CO   ASOS

0453 PM     TORNADO          2 NE BRUSH              40.28N 103.61W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            INTERSECTION OF HIGHWAY 34 AND 71...POWER
            POLES SNAPPED, STREET SIGNS RIPPED OUT OF
            THE GROUND.

0449 PM     TORNADO          1 NE BRUSH              40.27N 103.62W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SMALL AIRPORT DESTROYED NEAR BRUSH...PLANES
            FLIPPED OVER...ROOFS BLOWN OFF HOMES...MAJOR
            TREE DAMAGE.

0448 PM     TORNADO          2 ESE BRUSH             40.25N 103.60W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SPOTTER REPORTED MANY DOWNED TREES WITH
            DEBRIS FLYING IN THE AIR AND HITTING HIS
            CAR.

0347 PM     HAIL             14 NW NEW RAYMER        40.75N 104.03W
07/29/2018  M2.50 INCH       WELD               CO   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 14 NW NEW
            RAYMER.

0329 PM     HAIL             4 NW PAWNEE BUTTES      40.85N 104.04W
07/29/2018  M1.75 INCH       WELD               CO   TRAINED SPOTTER

0329 PM     TORNADO          11 E PAWNEE BUTTES      40.83N 103.77W
07/29/2018                   WELD               CO   PUBLIC

            BRIEF TORNADO TOUCHDOWN. HAS SINCE LIFTED.

0327 PM     TSTM WND GST     4 NNW PAWNEE BUTTES     40.88N 104.00W
07/29/2018  M59 MPH          WELD               CO   MESONET

&&
Local storm report, Jul 29, 7:55 PM MDT, 1 hour 30 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
755 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0753 PM     HAIL             3 ESE LA SALLE          40.34N 104.65W
07/29/2018  E1.00 INCH       WELD               CO   TRAINED SPOTTER

0737 PM     HAIL             2 NE MILTON RESERVOIR   40.26N 104.60W
07/29/2018  E1.25 INCH       WELD               CO   TRAINED SPOTTER

0726 PM     HAIL             EVANS                   40.38N 104.70W
07/29/2018  M2.00 INCH       WELD               CO   PUBLIC

0722 PM     HAIL             1 WNW GREELEY           40.43N 104.76W
07/29/2018  E1.75 INCH       WELD               CO   TRAINED SPOTTER

0721 PM     HAIL             4 WSW GREELEY           40.41N 104.80W
07/29/2018  M1.00 INCH       WELD               CO   TRAINED SPOTTER

0718 PM     HAIL             1 N GREELEY             40.43N 104.74W
07/29/2018  M1.50 INCH       WELD               CO   PUBLIC

0715 PM     HAIL             3 E LIMON               40.56N 105.01W
07/29/2018  M1.75 INCH       LARIMER            CO   STORM CHASER

0715 PM     HAIL             1 NW EVANS              40.39N 104.71W
07/29/2018  M1.25 INCH       WELD               CO   PUBLIC

0714 PM     HAIL             3 N LIMON               40.60N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   STORM CHASER

0708 PM     HAIL             FORT COLLINS            40.56N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0707 PM     HAIL             3 NNE MASONVILLE        40.52N 105.17W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0706 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M70 MPH          LINCOLN            CO   ASOS

0656 PM     HAIL             1 NW WELLINGTON         40.71N 105.02W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0655 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M68 MPH          LINCOLN            CO   ASOS

0652 PM     HAIL             10 NE CEDAR POINT       39.45N 103.68W
07/29/2018  M1.75 INCH       LINCOLN            CO   TRAINED SPOTTER

0651 PM     HAIL             1 SW WELLINGTON         40.69N 105.01W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0649 PM     HAIL             LIVERMORE               40.80N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0622 PM     HAIL             7 ENE VIRGINIA DALE     40.99N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0605 PM     HAIL             7 S ARICKAREE SCHOOL    39.64N 103.03W
07/29/2018  M2.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

0600 PM     HAIL             VIRGINIA DALE           40.95N 105.35W
07/29/2018  M2.50 INCH       LARIMER            CO   PUBLIC

0540 PM     HAIL             3 NW ELBA               39.95N 103.22W
07/29/2018  M1.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

            REPORTED MINOR FLOODING WITH 4 INCHES OF
            STANDING WATER IN HER YARD.

0532 PM     HAIL             11 S LAST CHANCE        39.57N 103.56W
07/29/2018  M2.00 INCH       WASHINGTON         CO   TRAINED SPOTTER

            HAIL COVERING THE GROUND.

0524 PM     TSTM WND DMG     7 E AKRON               40.16N 103.08W
07/29/2018                   WASHINGTON         CO   LAW ENFORCEMENT

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 7
            E AKRON. SEMI'S BLOWN OVER EAST OF AKRON
            ALONG HIGHWAY 34.

0507 PM     TSTM WND GST     AKRON                   40.16N 103.21W
07/29/2018  M74 MPH          WASHINGTON         CO   ASOS

0453 PM     TORNADO          2 NE BRUSH              40.28N 103.61W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            INTERSECTION OF HIGHWAY 34 AND 71...POWER
            POLES SNAPPED, STREET SIGNS RIPPED OUT OF
            THE GROUND.

0449 PM     TORNADO          1 NE BRUSH              40.27N 103.62W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SMALL AIRPORT DESTROYED NEAR BRUSH...PLANES
            FLIPPED OVER...ROOFS BLOWN OFF HOMES...MAJOR
            TREE DAMAGE.

0448 PM     TORNADO          2 ESE BRUSH             40.25N 103.60W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SPOTTER REPORTED MANY DOWNED TREES WITH
            DEBRIS FLYING IN THE AIR AND HITTING HIS
            CAR.

0347 PM     HAIL             14 NW NEW RAYMER        40.75N 104.03W
07/29/2018  M2.50 INCH       WELD               CO   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 14 NW NEW
            RAYMER.

0329 PM     TORNADO          11 E PAWNEE BUTTES      40.83N 103.77W
07/29/2018                   WELD               CO   PUBLIC

            BRIEF TORNADO TOUCHDOWN. HAS SINCE LIFTED.

0329 PM     HAIL             4 NW PAWNEE BUTTES      40.85N 104.04W
07/29/2018  M1.75 INCH       WELD               CO   TRAINED SPOTTER

0327 PM     TSTM WND GST     4 NNW PAWNEE BUTTES     40.88N 104.00W
07/29/2018  M59 MPH          WELD               CO   MESONET

&&
Local storm report, Jul 29, 8:20 PM MDT, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
820 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0819 PM     HAIL             2 NW STRASBURG          39.76N 104.33W
07/29/2018  E2.00 INCH       ADAMS              CO   TRAINED SPOTTER

0812 PM     HAIL             2 SE BENNETT            39.73N 104.40W
07/29/2018  M1.75 INCH       ARAPAHOE           CO   TRAINED SPOTTER

0811 PM     HAIL             BENNETT                 39.76N 104.42W
07/29/2018  M1.75 INCH       ADAMS              CO   TRAINED SPOTTER

0753 PM     HAIL             3 ESE LA SALLE          40.34N 104.65W
07/29/2018  E1.00 INCH       WELD               CO   TRAINED SPOTTER

0737 PM     HAIL             2 NE MILTON RESERVOIR   40.26N 104.60W
07/29/2018  E1.25 INCH       WELD               CO   TRAINED SPOTTER

0726 PM     HAIL             EVANS                   40.38N 104.70W
07/29/2018  M2.00 INCH       WELD               CO   PUBLIC

0722 PM     HAIL             1 WNW GREELEY           40.43N 104.76W
07/29/2018  E1.75 INCH       WELD               CO   TRAINED SPOTTER

0721 PM     HAIL             4 WSW GREELEY           40.41N 104.80W
07/29/2018  M1.00 INCH       WELD               CO   TRAINED SPOTTER

0718 PM     HAIL             1 N GREELEY             40.43N 104.74W
07/29/2018  M1.50 INCH       WELD               CO   PUBLIC

0715 PM     HAIL             3 E LIMON               40.56N 105.01W
07/29/2018  M1.75 INCH       LARIMER            CO   STORM CHASER

0715 PM     HAIL             1 NW EVANS              40.39N 104.71W
07/29/2018  M1.25 INCH       WELD               CO   PUBLIC

0714 PM     HAIL             3 N LIMON               40.60N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   STORM CHASER

0708 PM     HAIL             FORT COLLINS            40.56N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0707 PM     HAIL             3 NNE MASONVILLE        40.52N 105.17W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0706 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M70 MPH          LINCOLN            CO   ASOS

0656 PM     HAIL             1 NW WELLINGTON         40.71N 105.02W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0655 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M68 MPH          LINCOLN            CO   ASOS

0652 PM     HAIL             10 NE CEDAR POINT       39.45N 103.68W
07/29/2018  M1.75 INCH       LINCOLN            CO   TRAINED SPOTTER

0651 PM     HAIL             1 SW WELLINGTON         40.69N 105.01W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0649 PM     HAIL             LIVERMORE               40.80N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0622 PM     HAIL             7 ENE VIRGINIA DALE     40.99N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0605 PM     HAIL             7 S ARICKAREE SCHOOL    39.64N 103.03W
07/29/2018  M2.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

0600 PM     HAIL             VIRGINIA DALE           40.95N 105.35W
07/29/2018  M2.50 INCH       LARIMER            CO   PUBLIC

0540 PM     HAIL             3 NW ELBA               39.95N 103.22W
07/29/2018  M1.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

            REPORTED MINOR FLOODING WITH 4 INCHES OF
            STANDING WATER IN HER YARD.

0532 PM     HAIL             11 S LAST CHANCE        39.57N 103.56W
07/29/2018  M2.00 INCH       WASHINGTON         CO   TRAINED SPOTTER

            HAIL COVERING THE GROUND.

0524 PM     TSTM WND DMG     7 E AKRON               40.16N 103.08W
07/29/2018                   WASHINGTON         CO   LAW ENFORCEMENT

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 7
            E AKRON. SEMI'S BLOWN OVER EAST OF AKRON
            ALONG HIGHWAY 34.

0507 PM     TSTM WND GST     AKRON                   40.16N 103.21W
07/29/2018  M74 MPH          WASHINGTON         CO   ASOS

0453 PM     TORNADO          2 NE BRUSH              40.28N 103.61W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            INTERSECTION OF HIGHWAY 34 AND 71...POWER
            POLES SNAPPED, STREET SIGNS RIPPED OUT OF
            THE GROUND.

0449 PM     TORNADO          1 NE BRUSH              40.27N 103.62W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SMALL AIRPORT DESTROYED NEAR BRUSH...PLANES
            FLIPPED OVER...ROOFS BLOWN OFF HOMES...MAJOR
            TREE DAMAGE.

0448 PM     TORNADO          2 ESE BRUSH             40.25N 103.60W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SPOTTER REPORTED MANY DOWNED TREES WITH
            DEBRIS FLYING IN THE AIR AND HITTING HIS
            CAR.

0347 PM     HAIL             14 NW NEW RAYMER        40.75N 104.03W
07/29/2018  M2.50 INCH       WELD               CO   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 14 NW NEW
            RAYMER.

0329 PM     HAIL             4 NW PAWNEE BUTTES      40.85N 104.04W
07/29/2018  M1.75 INCH       WELD               CO   TRAINED SPOTTER

0329 PM     TORNADO          11 E PAWNEE BUTTES      40.83N 103.77W
07/29/2018                   WELD               CO   PUBLIC

            BRIEF TORNADO TOUCHDOWN. HAS SINCE LIFTED.

0327 PM     TSTM WND GST     4 NNW PAWNEE BUTTES     40.88N 104.00W
07/29/2018  M59 MPH          WELD               CO   MESONET

&&
Local storm report, Jul 29, 8:26 PM MDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
826 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0818 PM     HAIL             1 S STRASBURG           39.73N 104.32W
07/29/2018  M1.75 INCH       ARAPAHOE           CO   FIRE DEPT/RESCUE

&&

FC
Local storm report, Jul 29, 8:42 PM MDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
842 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0819 PM     HAIL             2 NW STRASBURG          39.76N 104.33W
07/29/2018  E2.00 INCH       ADAMS              CO   TRAINED SPOTTER

0818 PM     HAIL             1 S STRASBURG           39.73N 104.32W
07/29/2018  M1.75 INCH       ARAPAHOE           CO   FIRE DEPT/RESCUE

0816 PM     HAIL             1 NNE STRASBURG         39.75N 104.29W
07/29/2018  M1.50 INCH       ADAMS              CO   TRAINED SPOTTER

0815 PM     HAIL             2 WNW STRASBURG         39.75N 104.33W
07/29/2018  M2.50 INCH       ADAMS              CO   TRAINED SPOTTER

0812 PM     HAIL             2 SE BENNETT            39.73N 104.40W
07/29/2018  M1.75 INCH       ARAPAHOE           CO   TRAINED SPOTTER

0811 PM     HAIL             BENNETT                 39.76N 104.42W
07/29/2018  M1.75 INCH       ADAMS              CO   TRAINED SPOTTER

0810 PM     HAIL             3 N BENNETT             39.80N 104.42W
07/29/2018  M1.25 INCH       ADAMS              CO   TRAINED SPOTTER

0753 PM     HAIL             3 ESE LA SALLE          40.34N 104.65W
07/29/2018  E1.00 INCH       WELD               CO   TRAINED SPOTTER

0737 PM     HAIL             2 NE MILTON RESERVOIR   40.26N 104.60W
07/29/2018  E1.25 INCH       WELD               CO   TRAINED SPOTTER

0726 PM     HAIL             EVANS                   40.38N 104.70W
07/29/2018  M2.00 INCH       WELD               CO   PUBLIC

0722 PM     HAIL             1 WNW GREELEY           40.43N 104.76W
07/29/2018  E1.75 INCH       WELD               CO   TRAINED SPOTTER

0721 PM     HAIL             4 WSW GREELEY           40.41N 104.80W
07/29/2018  M1.00 INCH       WELD               CO   TRAINED SPOTTER

0718 PM     HAIL             1 N GREELEY             40.43N 104.74W
07/29/2018  M1.50 INCH       WELD               CO   PUBLIC

0715 PM     HAIL             3 E LIMON               40.56N 105.01W
07/29/2018  M1.75 INCH       LARIMER            CO   STORM CHASER

0715 PM     HAIL             1 NW EVANS              40.39N 104.71W
07/29/2018  M1.25 INCH       WELD               CO   PUBLIC

0714 PM     HAIL             3 N LIMON               40.60N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   STORM CHASER

0708 PM     HAIL             FORT COLLINS            40.56N 105.07W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0707 PM     HAIL             3 NNE MASONVILLE        40.52N 105.17W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0706 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M70 MPH          LINCOLN            CO   ASOS

0656 PM     HAIL             1 NW WELLINGTON         40.71N 105.02W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0655 PM     TSTM WND GST     LIMON                   39.27N 103.69W
07/29/2018  M68 MPH          LINCOLN            CO   ASOS

0652 PM     HAIL             10 NE CEDAR POINT       39.45N 103.68W
07/29/2018  M1.75 INCH       LINCOLN            CO   TRAINED SPOTTER

0651 PM     HAIL             1 SW WELLINGTON         40.69N 105.01W
07/29/2018  E1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0649 PM     HAIL             LIVERMORE               40.80N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   PUBLIC

0622 PM     HAIL             7 ENE VIRGINIA DALE     40.99N 105.23W
07/29/2018  M1.00 INCH       LARIMER            CO   TRAINED SPOTTER

0605 PM     HAIL             7 S ARICKAREE SCHOOL    39.64N 103.03W
07/29/2018  M2.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

0600 PM     HAIL             VIRGINIA DALE           40.95N 105.35W
07/29/2018  M2.50 INCH       LARIMER            CO   PUBLIC

0540 PM     HAIL             3 NW ELBA               39.95N 103.22W
07/29/2018  M1.75 INCH       WASHINGTON         CO   TRAINED SPOTTER

            REPORTED MINOR FLOODING WITH 4 INCHES OF
            STANDING WATER IN HER YARD.

0532 PM     HAIL             11 S LAST CHANCE        39.57N 103.56W
07/29/2018  M2.00 INCH       WASHINGTON         CO   TRAINED SPOTTER

            HAIL COVERING THE GROUND.

0524 PM     TSTM WND DMG     7 E AKRON               40.16N 103.08W
07/29/2018                   WASHINGTON         CO   LAW ENFORCEMENT

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 7
            E AKRON. SEMI'S BLOWN OVER EAST OF AKRON
            ALONG HIGHWAY 34.

0507 PM     TSTM WND GST     AKRON                   40.16N 103.21W
07/29/2018  M74 MPH          WASHINGTON         CO   ASOS

0453 PM     TORNADO          2 NE BRUSH              40.28N 103.61W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            INTERSECTION OF HIGHWAY 34 AND 71...POWER
            POLES SNAPPED, STREET SIGNS RIPPED OUT OF
            THE GROUND.

0449 PM     TORNADO          1 NE BRUSH              40.27N 103.62W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SMALL AIRPORT DESTROYED NEAR BRUSH...PLANES
            FLIPPED OVER...ROOFS BLOWN OFF HOMES...MAJOR
            TREE DAMAGE.

0448 PM     TORNADO          2 ESE BRUSH             40.25N 103.60W
07/29/2018                   MORGAN             CO   TRAINED SPOTTER

            SPOTTER REPORTED MANY DOWNED TREES WITH
            DEBRIS FLYING IN THE AIR AND HITTING HIS
            CAR.

0347 PM     HAIL             14 NW NEW RAYMER        40.75N 104.03W
07/29/2018  M2.50 INCH       WELD               CO   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 14 NW NEW
            RAYMER.

0329 PM     TORNADO          11 E PAWNEE BUTTES      40.83N 103.77W
07/29/2018                   WELD               CO   PUBLIC

            BRIEF TORNADO TOUCHDOWN. HAS SINCE LIFTED.

0329 PM     HAIL             4 NW PAWNEE BUTTES      40.85N 104.04W
07/29/2018  M1.75 INCH       WELD               CO   TRAINED SPOTTER

0327 PM     TSTM WND GST     4 NNW PAWNEE BUTTES     40.88N 104.00W
07/29/2018  M59 MPH          WELD               CO   MESONET

&&
Local storm report, Jul 29, 9:05 PM MDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
905 PM MDT SUN JUL 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     HAIL             8 NNE KIOWA             39.45N 104.40W
07/29/2018  E2.00 INCH       ELBERT             CO   PUBLIC

&&

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 29, 6:25 PM MDTSevere Thunderstorm WarningBOULincoln, Washington50 min
Jul 29, 6:43 PM MDTSevere Thunderstorm WarningBOULarimer, Weld32 min
Jul 29, 7:04 PM MDTSevere Thunderstorm WarningBOUWeld26 min
Jul 29, 7:04 PM MDTTornado WarningBOUElbert, Lincoln26 min
Jul 29, 7:28 PM MDTSevere Thunderstorm WarningBOUAdams, Weld32 min
Jul 29, 7:59 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe31 min
Jul 29, 8:27 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Elbert33 min
Jul 29, 8:58 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln32 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2018Every severe thunderstorm warning in 2018

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.