Alert archive / Colorado / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 77, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 17, 1995, 4:47 PM MDT for Logan County, Washington County, Colorado. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1995, 4:47 PM MDT (22:47 UTC)
- Expired
- Jul 17, 1995, 5:30 PM MDT
- In force
- 43 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Logan County, CO, Washington County, CO
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.8 hours before the alert went out and 54 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1485 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 172250 RRA
SVRDEN
COC075-121-172330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
447 PM MDT MON JUL 17 1995
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
SOUTH CENTRAL LOGAN AND EXTREME NORTHEASTERN WASHINGTON
INCLUDING THE FOLLOWING LOCATIONS
REIRADON HILL
AT 447 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 4 MILES SOUTH OF REIRADON HILL ...OR
ABOUT 13 MILES SOUTHEAST OF STERLING.
THE PUBLIC REPORTED VERY HEAVY RAIN AND WIND GUSTS TO 45 MPH FROM THIS
THUNDERSTORM IN SOUTHERN LOGAN COUNTY 5 MILES WEST SOUTHWEST OF LEROY.
EARLIER THIS AFTERNOON THIS THUNDERSTORM PRODUCED GOLF BALL SIZE HAIL
IN PADRONI AND QUARTER SIZE HAIL IN ILIFF.
THE STORM WAS MOVING TO THE SOUTH ABOUT 10 MPH.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
A TORNADO WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND
NORTHEASTERN COLORADO UNTIL 1000PM MDT. SEVERE THUNDERSTORMS
CAN PRODUCE TORNADvOES WITH LITTLE OR NO ADVANCE WARNING.
PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH
AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
LAT...LON 4040 10281 4039 10315 4060 10314 4058 10288What 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.
In the hours before
Special weather statement, Jul 17, 1:18 PM MDT, 3 hours 29 minutes before
COZ015-030>050-172100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 110 PM MDT MONDAY JULY 17 1995 ...THUNDERSTORMS DEVELOPING ALONG THE FRONT RANGE FOOTHILLS... SCATTERED THUNDERSTORMS HAVE FORMED ALONG THE FRONT RANGE FOOTHILLS FROM LARIMER COUNTY SOUTH TO PARK COUNTY AND ALONG THE PALMER DIVIDE. AT 110 PM MDT RADAR INDICATED THAT THE STRONGEST THUNDERSTORM WAS LOCATED IN NORTHEAST PARK COUNTY ABOUT 5 MILES WEST OF BAILEY. THIS THUNDERSTORM WAS NEARLY STATIONARY. MORE THUNDERSTORMS ARE EXPECTED TO FORM DURING THE AFTERNOON AND EVENING HOURS AND SPREAD EAST ACROSS THE NORTHEAST PLAINS OF COLORADO. PLENTY OF MOISTURE IS AVAILABLE SO THAT SOME OF THE THUNDERSTORMS MAY DUMP LOCALLY HEAVY RAIN. SINCE THE AVERAGE MOVEMENT OF THE THUNDERSTORMS IS EXPECTED TO RANGE BETWEEN 10 AND 20 MPH SOME LOCATIONS COULD GET BETWEEN 1 AND 2 INCHES OF RAIN IN AN HOUR OR SO. IN ADDITION TO THE POTENTIAL FOR HEAVY RAIN...PEA TO MARBLE SIZE HAIL IS ALSO POSSIBLE WITH MANY OF THE THUNDERSTORMS AS WELL AS THE USUAL DEADLY BOLTS OF CLOUD TO GROUND LIGHTNING. PEOPLE IN NORTHEAST COLORADO INCLUDING THE FOOTHILLS AND MOUNTAINS SHOULD BE ALERT TO WEATHER CONDITIONS AND MOVE TO A PLACE OF SAFETY IF NECESSARY. AVOID BECOMING A LIGHTNING STRIKE VICTIM BY FOLLOWING THE SAFETY RULES FOR LIGHTNING. BE ALERT FOR POSSIBLE HEAVY RAIN CAUSING SMALL STREAMS AND CREEKS TO RISE TO BANKFUL STAGE IN A SHORT PERIOD OF TIME. ALSO BE ALERT FOR POSSIBLE PONDING OF WATER ON ROADWAYS ESPECIALLY IN LOW LYING AREAS AND INTERSECTIONS. MONITOR LOCAL NEWS MEDIA AND NOAA WEATHER RADIO FOR THE LATEST WEATHER CONDITIONS AND FORECASTS. END...BOODA...WSFO DENVER WWUS35KCYS 0
Special weather statement, Jul 17, 1:59 PM MDT, 2 hours 48 minutes before
COZ048-050-172100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 2 PM MDT MONDAY JULY 17 1995 ...STRONG THUNDERSTORM IN LOGAN AND SEDGWICK COUNTY... AT 2 PM MDT RADAR SHOWED A STRONG THUNDERSTORM HAD FORMED ON THE LOGAN-SEDGWICK COUNTY LINE ABOUT 2 MILES NORTHWEST OF DORSEY OR 20 MILES WEST OF JULESBURG. THIS THUNDERSTORM HAS FORMED IN VERY MOIST AND UNSTABLE AIR AND IS CAPABLE OF PRODUCING MARBLE SIZE HAIL. EVEN LARGER HAILSTONES MAY FORM IF THE THUNDERSTORM CONTINUES TO GAIN ENERGY. HEAVY RAIN IS ALSO POSSIBLE. THIS THUNDERSTORM IS MOVING TO THE EAST ABOUT 10 MPH AND WILL MOVE ACROSS NORTHERN SEDGWICK COUNTY BETWEEN 2 AND 3 PM MDT. PEOPLE IN THE NORTHEAST CORNER OF LOGAN COUNTY AS WELL AS SEDGWICK COUNTY SHOULD BE ALERT TO WEATHER CONDITIONS AND MOVE TO A PLACE OF SAFETY IF THIS THUNDERSTORM APPROACHES. MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER FORECASTS AND BULLETINS. END...BOODA...WSFO DENVER
Special weather statement, Jul 17, 2:52 PM MDT, 1 hour 55 minutes before
COZ048-050-041-172200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 245 PM MDT MONDAY JULY 17 1995 ...STRONG THUNDERSTORMS IN SEDGWICK AND SOUTHERN DOUGLAS COUNTIES... AT 245 PM MDT RADAR SHOWS SCATTERED THUNDERSTORMS ALONG THE EASTERN FOOTHILLS AND IN THE NORTHEAST CORNER OF COLORADO. THE STRONGEST OF THE THUNDERSTORMS WAS LOCATED IN SEDGWICK COUNTY ABOUT 4 MILES SOUTH OF SEDGWICK OR 16 MILES WEST SOUTHWEST OF JULESBURG COLORADO. A SPOTTER NEAR THE TOWN OF SEDGWICK ESTIMATED THAT THIS THUNDERSTORM DUMPED ABOUT 1/2 INCH OF RAIN IN 20 MINUTES AT HIS RESIDENCE AROUND 215 PM MDT...HOWEVER THERE WAS NO HAIL REPORTED AT HIS LOCATION. THIS THUNDERSTORM WAS MOVING TO THE EAST-SOUTHEAST ABOUT 10 MPH AND WILL SLOWLY PROGRESS ACROSS SEDGWICK COUNTY BETWEEN 3 AND 4 PM MDT AND MAY BRUSH THE NORTHERN SECTIONS OF PHILLIPS COUNTY. ANOTHER STRONG THUNDERSTORM EXTENDED FROM SOUTHWEST DOUGLAS INTO NORTHEAST TELLER AND NORTHWEST EL PASO COUNTIES. THIS THUNDERSTORM WAS CENTERED ABOUT 5 MILES EAST SOUTHEAST OF WESTCREEK OR 10 MILES WEST OF PALMER LAKE...ABOUT 50 MILES NORTHWEST OF COLORADO SPRINGS. IT WAS MOVING SLOWLY TO THE EAST SOUTHEAST AND IS CAPABLE OF DUMPING HEAVY RAIN AND SMALL HAIL. PEOPLE IN DOUGLAS...SEDGWICK AND NORTHERN PHILLIPS COUNTIES SHOULD KEEP AN EYE ON THE SKY AND MOVE INDOORS IF THREATENING WEATHER APPROACHES. MOTORISTS ON I-76 IN EXTREME NORTHEAST COLORADO AND ON I-25 GOING OVER THE PALMER DIVIDE AS WELL AS OTHER ROADS IN THESE AREAS SHOULD BE ALERT FOR HEAVY RAIN AND POSSIBLE PONDING OF WATER ON THE ROAD ESPECIALLY AT STREET INTERESECTIONS AND LOW LYING AREAS. MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER FORECASTS AND BULLETINS. END...BOODA...WSFO DENVER WTNT73KNHC 0
Special weather statement, Jul 17, 2:52 PM MDT, 1 hour 55 minutes before
COZ048-050-041-172200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 245 PM MDT MONDAY JULY 17 1995 ...STRONG THUNDERSTORMS IN SEDGWICK AND SOUTHERN DOUGLAS COUNTIES... AT 245 PM MDT RADAR SHOWS SCATTERED THUNDERSTORMS ALONG THE EASTERN FOOTHILLS AND IN THE NORTHEAST CORNER OF COLORADO. THE STRONGEST OF THE THUNDERSTORMS WAS LOCATED IN SEDGWICK COUNTY ABOUT 4 MILES SOUTH OF SEDGWICK OR 16 MILES WEST SOUTHWEST OF JULESBURG COLORADO. A SPOTTER NEAR THE TOWN OF SEDGWICK ESTIMATED THAT THIS THUNDERSTORM DUMPED ABOUT 1/2 INCH OF RAIN IN 20 MINUTES AT HIS RESIDENCE AROUND 215 PM MDT...HOWEVER THERE WAS NO HAIL REPORTED AT HIS LOCATION. THIS THUNDERSTORM WAS MOVING TO THE EAST-SOUTHEAST ABOUT 10 MPH AND WILL SLOWLY PROGRESS ACROSS SEDGWICK COUNTY BETWEEN 3 AND 4 PM MDT AND MAY BRUSH THE NORTHERN SECTIONS OF PHILLIPS COUNTY. ANOTHER STRONG THUNDERSTORM EXTENDED FROM SOUTHWEST DOUGLAS INTO NORTHEAST TELLER AND NORTHWEST EL PASO COUNTIES. THIS THUNDERSTORM WAS CENTERED ABOUT 5 MILES EAST SOUTHEAST OF WESTCREEK OR 10 MILES WEST OF PALMER LAKE...ABOUT 50 MILES NORTHWEST OF COLORADO SPRINGS. IT WAS MOVING SLOWLY TO THE EAST SOUTHEAST AND IS CAPABLE OF DUMPING HEAVY RAIN AND SMALL HAIL. PEOPLE IN DOUGLAS...SEDGWICK AND NORTHERN PHILLIPS COUNTIES SHOULD KEEP AN EYE ON THE SKY AND MOVE INDOORS IF THREATENING WEATHER APPROACHES. MOTORISTS ON I-76 IN EXTREME NORTHEAST COLORADO AND ON I-25 GOING OVER THE PALMER DIVIDE AS WELL AS OTHER ROADS IN THESE AREAS SHOULD BE ALERT FOR HEAVY RAIN AND POSSIBLE PONDING OF WATER ON THE ROAD ESPECIALLY AT STREET INTERESECTIONS AND LOW LYING AREAS. MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER FORECASTS AND BULLETINS. END...BOODA...WSFO DENVER WTNT73KNHC 0
Special weather statement, Jul 17, 4:20 PM MDT, 27 minutes before
COZ031-035-038>040-042>043-045-172300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
420 PM MDT MON JUL 17 1995
AT 415 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS DEVELOPING 10 MILES NORTH OF MISHOWAKA...OR ABOUT 25 MILES
NORTHWEST OF FORT COLLINS...NEAR DENVER INTERNATIONAL AIRPORT AND 35
MILES NORTHEAST OF DENVER NEAR KEENESBURG. THESE STORMS WERE CAPAPBLE
OF PRODUCING VERY HEAVY RAIN...HAIL AND STRONG WINDS ALONG WITH
DANGEROUS LIGHTNING.
THE STORMS WERE MOVING SOUTHEAST AT 15 MPH.
IF THREATENING WEATHER APPROACHES YOUR AREA TAKE SHELTER FROM
THESE THUNDERSTOMS.
A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTHEAST COLORADO
UNTIL 10 PM MDT.
KLEYLA
LAT...LON 3981 10475 4071 10558 4093 10559 4089 10481
3968 10413
WUUS01KWBC 0Special weather statement, Jul 17, 4:20 PM MDT, 27 minutes before
COZ031-035-038>040-042>043-045-172300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
420 PM MDT MON JUL 17 1995
AT 415 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS DEVELOPING 10 MILES NORTH OF MISHOWAKA...OR ABOUT 25 MILES
NORTHWEST OF FORT COLLINS...NEAR DENVER INTERNATIONAL AIRPORT AND 35
MILES NORTHEAST OF DENVER NEAR KEENESBURG. THESE STORMS WERE CAPAPBLE
OF PRODUCING VERY HEAVY RAIN...HAIL AND STRONG WINDS ALONG WITH
DANGEROUS LIGHTNING.
THE STORMS WERE MOVING SOUTHEAST AT 15 MPH.
IF THREATENING WEATHER APPROACHES YOUR AREA TAKE SHELTER FROM
THESE THUNDERSTOMS.
A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTHEAST COLORADO
UNTIL 10 PM MDT.
KLEYLA
LAT...LON 3981 10475 4071 10558 4093 10559 4089 10481
3968 10413
WUUS01KWBC 0The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 3:05 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 25 min |
| Jul 17, 3:29 PM MDT | Tornado Warning | BOU | Phillips | 31 min |
| Jul 17, 3:32 PM MDT | Tornado Warning | BOU | Logan, Sedgwick | 43 min |
| Jul 17, 4:00 PM MDT | Tornado Warning | BOU | Phillips | 30 min |
| Jul 17, 4:10 PM MDT | Tornado Warning | BOU | Logan, Sedgwick | 35 min |
| Jul 17, 5:06 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 39 min |
| Jul 17, 5:33 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 42 min |
| Jul 17, 5:48 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 42 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1995Every severe thunderstorm warning in 1995
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.