Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 413, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 29, 1994, 8:23 PM CDT for Alfalfa County, Garfield County, Major County, Oklahoma. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1994, 8:23 PM CDT (01:23 UTC)
- Expired
- Jun 29, 1994, 9:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Alfalfa County, OK, Garfield County, OK, Major County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.4 hours before the alert went out and 158 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
- 1634 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 2290 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
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.
NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 3:32 PM CDT, 4 hours 51 minutes earlier.
Area forecast discussion, Jun 29, 3:32 PM CDT, 4 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OKLAHOMA 330 PM CDT WED JUN 29 1994 STG/SVR TSTMS DVLPG THIS AFTN ACRS ERN CO/WRN KS XPCTD TO MOV SEWD ALNG LOW-LVL THETA-E/INSTABILITY AXIS THRU THE NITE. A WK S/W PROGGED TO MOV INTO AREA OVRNGT WL ALSO ACT TO CONT CNVCTN. LOW LVL WND FIELD INCRSG FM S TNGT WL IMPROV VERT WND PROFILE AND HELP TSTMS TO PERSIST INTO LATE HOURS. ETA EHI FIELDS FCST TO BCM QUITE STRNG... ESP FOR THIS TIME OF YR... ACRS NWRN OK TNGT AS LOW LVL WNDS INCRS AND VRY HIGH INSTABILITIES PERSIST. STEEP MID LVL LAPSE RATES AND HIGH AMTS OF LOW LVL MSTR... WITH H85 DWPTS NR 15C... ARE COMBINING TO CREATE VRY UNSTBL AMS. TSTMS ARE XPCTD TO MOVE INTO NWRN OK THIS EVE...ACRS WRN AND CNTRL SXNS NR MDNT... AND RED RVR VLY VRY LT TNGT. BEST PCPN CHCS WL BE ACRS WRN AND CNTRL OKLA. NERN ZNS XPCTD TO HAVE LOWEST CHC DUE TO MORE STBL AIR IN THE AREA. LINGERING TSTMS CONT WED MRNG SRN ZNS... WITH NEW DVLPMT PSBL AGN LATE THURS BEGINNING IN NWRN OK. IN LONGER TERM... NW FLOW WKNS AS UPR RDG NRN MX/SWRN US SHFTS BACK INTO AREA...WHILE TROF MOVS INTO WRN U.S. THIS WL LKLY END PCPN CHCS WHILE MAINTAINING HIGH TEMPS. FCSTID=32 HBR 75 102 76 103 / T50 20 20 10 OKC 73 98 76 100 / 40 30 20 10 SPS 77 101 78 103 / 30 20 10 10 GAG 69 101 69 101 / 60 20 30 20 PNC 68 99 73 101 / 30 20 30 10 DUA 75 95 76 98 / 20 30 10 20 .OKC...NONE. .TX...NONE.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 7:25 PM CDT | Severe Thunderstorm Warning | OUN | Woods | 45 min |
| Jun 29, 7:49 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Woods | 41 min |
| Jun 29, 8:14 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills | 46 min |
| Jun 29, 8:23 PM CDT | Severe Thunderstorm Warning | OUN | Grant, Kay | 52 min |
| Jun 29, 8:48 PM CDT | Severe Thunderstorm Warning | OUN | Custer, Dewey, Roger Mills | 52 min |
| Jun 29, 9:09 PM CDT | Severe Thunderstorm Warning | OUN | Garfield, Grant, Kay, Noble | 51 min |
| Jun 29, 9:30 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Custer, Dewey | 45 min |
| Jun 29, 9:30 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Washita | 45 min |
| Jun 29, 9:30 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 45 min |
| Jun 29, 10:13 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Caddo, Custer, Washita | 47 min |
| Jun 29, 10:13 PM CDT | Severe Thunderstorm Warning | OUN | Greer | 47 min |
| Jun 29, 10:13 PM CDT | Severe Thunderstorm Warning | OUN | Blaine | 47 min |
| Jun 29, 10:48 PM CDT | Tornado Warning | OUN | Greer | 27 min |
| Jun 29, 10:56 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Washita | 49 min |
| Jun 29, 11:08 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa | 52 min |
| Jun 29, 11:25 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 50 min |
| Jun 29, 11:47 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Tillman | 43 min |
| Jun 29, 11:47 PM CDT | Severe Thunderstorm Warning | OUN | Greer, Harmon | 53 min |
| Jun 30, 12:14 AM CDT | Severe Thunderstorm Warning | OUN | Jackson | 46 min |
| Jun 30, 12:19 AM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton | 41 min |
| Jun 30, 12:37 AM CDT | Severe Thunderstorm Warning | OUN | Harmon | 33 min |
| Jun 30, 12:49 AM CDT | Severe Thunderstorm Warning | OUN | Cotton, Jefferson, Stephens | 41 min |
| Jun 30, 12:56 AM CDT | Severe Thunderstorm Warning | OUN | Jackson | 49 min |
| Jun 30, 1:22 AM CDT | Severe Thunderstorm Warning | OUN | Jefferson, Stephens | 53 min |
| Jun 30, 1:41 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Love | 49 min |
| Jun 30, 12:56 AM CDT | Severe Thunderstorm Warning | OUN | Foard, Hardeman, Wilbarger | 49 min |
| Jun 30, 1:35 AM CDT | Severe Thunderstorm Warning | OUN | Baylor, Wilbarger | 45 min |
| Jun 30, 2:15 AM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor | 45 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 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.