Alert archive / Colorado / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 40, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 3, 1994, 5:35 PM MDT for Jefferson County, Colorado. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Jun 3, 1994, 5:35 PM MDT (23:35 UTC)
- Expired
- Jun 3, 1994, 6:10 PM MDT
- In force
- 35 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Jefferson County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 11.6 hours before the alert went out and 176 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
- 81 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 1166 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Jun 3, 2:24 PM MDT, 3 hours 11 minutes before
COZ040-043-032100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 225 PM MDT FRI JUN 03 1994 AT 220 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING THUNDERSTORM NEAR THE TOWN OF FRANKTOWN...OR 8 MILES EAST OF CASTLE ROCK IN EASTERN DOUGLAS COUNTY. THIS STORM WAS MOVING SLOWLY TO THE EAST. THIS STORM WILL CONTAIN FREQUENT LIGHTNING... POSSIBLE HEAVY RAIN AND LARGE HAIL. IF YOU ARE IN THE PATH OF THIS STORM TAKE COVER AND REPORT ANY SEVERE WEATHER TO THE DOUGLAS COUNTY SHERRIFF. RTG
Special weather statement, Jun 3, 2:25 PM MDT, 3 hours 10 minutes before
COZ040-043-032100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 225 PM MDT FRI JUN 03 1994 AT 220 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING THUNDERSTORM NEAR THE TOWN OF FRANKTOWN...OR 8 MILES EAST OF CASTLE ROCK IN EASTERN DOUGLAS COUNTY. THIS STORM WAS MOVING SLOWLY TO THE EAST. THIS STORM WILL CONTAIN FREQUENT LIGHTNING... POSSIBLE HEAVY RAIN AND LARGE HAIL. IF YOU ARE IN THE PATH OF THIS STORM TAKE COVER AND REPORT ANY SEVERE WEATHER TO THE DOUGLAS COUNTY SHERRIFF. RTG
Special weather statement, Jun 3, 3:07 PM MDT, 2 hours 28 minutes before
COZ036-040>041-032130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 307 PM MDT FRI JUN 03 1994 AT 305 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED THUNDERSTORM ACROSS MOST OF DOUGLAS COUNTY. THESE STORMS ARE NOT THAT STRONG...BUT ARE PRODUCING LOWERINGS WHICH REPRESENT WARM MOIST AIR THAT IS FEEDING THE STORMS. ALTHOUGH THEY HAVE THE APPEARANCE OF FUNNEL CLOUDS...THEY ARE NOT. THE WIND PROFILE IS NOT VERY CONDUCIVE FOR THE FORMATION OF STRONG TORNADOES TODAY. HOWEVER...A VERY WEAK TORNADO CAN QUICKLY SPIN UP ALONG THE STORMS IN DOUGLAS COUNTY. IF THEY DO DEVELOP, THE WINDS LIKELY WILL BE LESS THAN 70 MPH AND LAST A MINUTE OR LESS. THE STORM ARES MOVING EAST AT 10 MPH. LAT...LON 3931 10468 3913 10519 3948 10507 3952 10469
Special weather statement, Jun 3, 3:08 PM MDT, 2 hours 27 minutes before
COZ036-040>041-032130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 307 PM MDT FRI JUN 03 1994 AT 305 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED THUNDERSTORM ACROSS MOST OF DOUGLAS COUNTY. THESE STORMS ARE NOT THAT STRONG...BUT ARE PRODUCING LOWERINGS WHICH REPRESENT WARM MOIST AIR THAT IS FEEDING THE STORMS. ALTHOUGH THEY HAVE THE APPEARANCE OF FUNNEL CLOUDS...THEY ARE NOT. THE WIND PROFILE IS NOT VERY CONDUCIVE FOR THE FORMATION OF STRONG TORNADOES TODAY. HOWEVER...A VERY WEAK TORNADO CAN QUICKLY SPIN UP ALONG THE STORMS IN DOUGLAS COUNTY. IF THEY DO DEVELOP, THE WINDS LIKELY WILL BE LESS THAN 70 MPH AND LAST A MINUTE OR LESS. THE STORM ARES MOVING EAST AT 10 MPH. LAT...LON 3931 10468 3913 10519 3948 10507 3952 10469
Special weather statement, Jun 3, 4:34 PM MDT, 1 hour 1 minute before
COZ036-039>040-043-032300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
435 PM MDT FRI JUN 03 1994
AT 430 PM MDT A BOUNDARY OF COOLER AIR...THAT DEVELOPED FROM
THUNDERSTORMS IN DOUGLAS COUNTY...STRETCHED FROM NORTHERN JEFFERSON
COUNTY AND EXTENDED NORTHEASTWARD INTO NORTHWEST ADAMS AND SOUTHERN WELD
COUNTIES. LARGE CLOUDS HAVE DEVELOPED ON THIS BOUNDARY AND IT IS
ANTICIPATED THAT THUNDERSTORMS WILL DEVELOP ALONG THIS LINE BY 500 PM.
SOME OF THE STORMS ALONG THIS LINE WILL HAVE THE POTENTIAL TO BECOME
SEVERE. THIS LINE OF THUNDERSTORMS IS EXPECTED TO DRIFT SLOWLY EASTWARD
AFTER THEY DEVELOP.
THE FOLLOWING AREAS WILL BE LOCATED CLOSE TO WHERE THESE THUNDERSTORMS
ARE EXPECTED TO DEVELOP AND SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER DURING THE NEXT 1 TO 2 HOURS.
ARVADA...BARR LAKE...BOULDER...BRIGHTON...BROOMFIELD...
COMMERCE CITY...DENVER...ELDORADO SPRINGS...ERIE...FORT
LUPTON...GOLDEN...HUDSON...LAFAYETTE...LEYDEN...LOCHBUIE...
LOUISVILLE...MARSHALL...NORTHGLENN...ROCKY FLATS...SUPERIOR
...THORNTON...WESTMINSTER... AND WHEAT RIDGE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UN~TIL 800PM MDT.
LAT...LON 3986 10478 3975 10526 3998 10536 4019 10453
IMYSpecial weather statement, Jun 3, 4:35 PM MDT, 1 hour before
COZ036-039>040-043-032300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
435 PM MDT FRI JUN 03 1994
AT 430 PM MDT A BOUNDARY OF COOLER AIR...THAT DEVELOPED FROM
THUNDERSTORMS IN DOUGLAS COUNTY...STRETCHED FROM NORTHERN JEFFERSON
COUNTY AND EXTENDED NORTHEASTWARD INTO NORTHWEST ADAMS AND SOUTHERN WELD
COUNTIES. LARGE CLOUDS HAVE DEVELOPED ON THIS BOUNDARY AND IT IS
ANTICIPATED THAT THUNDERSTORMS WILL DEVELOP ALONG THIS LINE BY 500 PM.
SOME OF THE STORMS ALONG THIS LINE WILL HAVE THE POTENTIAL TO BECOME
SEVERE. THIS LINE OF THUNDERSTORMS IS EXPECTED TO DRIFT SLOWLY EASTWARD
AFTER THEY DEVELOP.
THE FOLLOWING AREAS WILL BE LOCATED CLOSE TO WHERE THESE THUNDERSTORMS
ARE EXPECTED TO DEVELOP AND SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER DURING THE NEXT 1 TO 2 HOURS.
ARVADA...BARR LAKE...BOULDER...BRIGHTON...BROOMFIELD...
COMMERCE CITY...DENVER...ELDORADO SPRINGS...ERIE...FORT
LUPTON...GOLDEN...HUDSON...LAFAYETTE...LEYDEN...LOCHBUIE...
LOUISVILLE...MARSHALL...NORTHGLENN...ROCKY FLATS...SUPERIOR
...THORNTON...WESTMINSTER... AND WHEAT RIDGE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 800PM MDT.
LAT...LON 3986 10478 3975 10526 3998 10536 4019 10453
IMYThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 6:28 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 32 min |
| Jun 2, 6:35 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 40 min |
| Jun 2, 7:15 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 25 min |
| Jun 3, 3:20 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 25 min |
| Jun 3, 5:13 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 22 min |
| Jun 3, 5:23 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 22 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1994Every severe thunderstorm warning in 1994
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.