Alert archive / Oklahoma / Heat Advisories in 2016
Heat Advisory 15, NWS Tulsa, OK
NWS Tulsa, OK issued this heat advisory at Jul 20, 2016, 3:43 PM CDT for 21 counties in Oklahoma. It took effect at Jul 21, 2016, 12:00 PM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jul 20, 2016, 3:43 PM CDT (20:43 UTC)
- In effect from
- Jul 21, 2016, 12:00 PM CDT
- Expired
- Jul 21, 2016, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Tulsa, OK
All 21 counties
Cherokee County, OK, Choctaw County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Pushmataha County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 20:42 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.7 hours before the alert went out and 200 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
- 1607 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1150 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this heat advisory went out at Jul 19, 6:07 PM CDT, 21 hours 36 minutes earlier.
Area forecast discussion, Jul 19, 6:07 PM CDT, 21 hours 36 minutes before
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</html>Hazardous weather outlook, Jul 19, 4:25 PM CDT, 23 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 425 PM CDT TUE JUL 19 2016 ARZ001-002-010-011-019-020-029-OKZ049-053>076-201030- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 425 PM CDT TUE JUL 19 2016 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...FAR EASTERN OKLAHOMA AND WESTERN ARKANSAS. ONSET...ONGOING. HEAVY RAIN. RISK...LIMITED. AREA...FAR EASTERN OKLAHOMA AND WESTERN ARKANSAS. ONSET...ONGOING. DANGEROUS HEAT. RISK...ELEVATED. AREA...EASTERN OKLAHOMA AND PORTIONS OF WESTERN ARKANSAS. ONSET...ONGOING. DISCUSSION... ISOLATED TO WIDELY SCATTERED STORMS THIS AFTERNOON WILL HAVE A LOW CHANCE OF PRODUCING A SEVERE DOWNBURST. OTHERWISE...DANGEROUS LIGHTNING AND LOCALLY HEAVY RAINFALL WILL BE THE MAIN THREATS WITH THE SLOW MOVING STORMS. HEAT INDICES IN THE 100 TO 107 DEGREE RANGE ARE OCCURRING ACROSS PORTIONS OF EASTERN OKLAHOMA THAT HAVE NOT BEEN AFFECTED BY STORM OUTFLOW. THESE DANGEROUS HEAT INDICES SHOULD IMPROVE BY SUNSET. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... LOCAL SPOTTER ACTIVATION MAY BE NEEDED. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. WEDNESDAY THRU SUNDAY...DANGEROUS HEAT POTENTIAL. MONDAY...THUNDERSTORM POTENTIAL...DANGEROUS HEAT POTENTIAL. EXTENDED DISCUSSION... THE DANGEROUS HEAT AND HUMIDITY WILL PERSIST THROUGH THE REST OF THE WEEK AND INTO THE WEEKEND...AS A RIDGE OF HIGH PRESSURE BUILDS OVERHEAD. AFTERNOON HEAT INDICES WILL GENERALLY BE IN THE 105 TO 110 RANGE ACROSS MUCH OF EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS. ADDITIONAL HEAT ADVISORIES WILL LIKELY BE NEEDED THROUGH THIS WEEKEND. THE RIDGE ALOFT IS EXPECTED TO SLIDE WEST OF THE REGION BY EARLY NEXT WEEK...AND WILL ALLOW A FRONTAL BOUNDARY TO BRING THE POTENTIAL FOR STORMS BY MONDAY. WWW.WEATHER.GOV/TULSA CONTAINS ADDITIONAL INFORMATION. LACY
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 6:30 PM CDT | Special Weather Statement | TSA | Sebastian | 15 min |
Nearby
Heat Advisories in Oklahoma, 2016Heat Advisories in Arkansas, 2016Every heat advisory in 2016
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.