Alert archive / Arkansas / Special Weather Statements in 2018
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Jul 16, 2018, 4:45 PM CDT for Franklin County, Arkansas. It was in force for 30 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 16, 2018, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 16, 2018, 5:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Tulsa, OK
County Franklin County, AR
The radar
The Western Arkansas radar (KSRX), 62 km from the middle of the area, began a volume at 21:48 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, 9.8 hours before the alert went out and 150 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
- 750 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1347 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 16, 3:11 PM CDT, 1 hour 34 minutes earlier.
Area forecast discussion, Jul 16, 3:11 PM CDT, 1 hour 34 minutes before
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</html>Hazardous weather outlook, Jul 16, 12:54 PM CDT, 3 hours 51 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 1254 PM CDT Mon Jul 16 2018 ARZ001-002-010-011-019-020-029-OKZ049-053>076-171030- 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- 1254 PM CDT Mon Jul 16 2018 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...Eastern Oklahoma and western Arkansas. ONSET...Ongoing. HEAVY RAIN. RISK...Limited. AREA...Eastern Oklahoma and western Arkansas. ONSET...Ongoing. DANGEROUS HEAT. RISK...Significant. AREA...Eastern Oklahoma and western Arkansas. ONSET...Ongoing. AREA AT GREATEST RISK...Far northeast and far southeast Oklahoma. DISCUSSION... A persistent area of thunderstorms has been moving east along the Kansas and Oklahoma border with an outflow boundary out ahead of these storms. This boundary will be the focus for more storms this afternoon across northeast Oklahoma into northwest Arkansas. Showers have been ongoing all morning across eastern central Oklahoma, south of Tulsa toward Tahlequah, and this has kept the airmass in this zone more stable. However, the airmass along and south of Interstate 40 has become more unstable. Storms may also form this afternoon across this area. Any of the storms this afternoon will have a limited threat of damaging wind gusts. Hot and humid conditions also continue this afternoon across much of eastern Oklahoma and west central Arkansas except in cloudy areas. Early afternoon heat index values range from 101 to 105 degrees with a heat advisory in effect until 8 PM. Heat index values will top out in the 105 to 109 range by mid afternoon with cooler values across far northwest Arkansas. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Local Spotter Activation May Be Needed. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. TUESDAY and WEDNESDAY...Thunderstorm Potential...Dangerous Heat Potential. THURSDAY through SUNDAY...Dangerous Heat Potential. EXTENDED DISCUSSION... The pattern will remain unsettled into mid week, with thunderstorm chances continuing through Wednesday. There will be a continued threat for strong downburst winds with the strongest afternoon storms. Hot and humid conditions will continue this week, likely increasing late in the week as the upper level ridge builds into the area. weather.gov/tulsa contains additional information. CORFIDI
In the hours before
Special weather statement, Jul 16, 3:58 PM CDT, 47 minutes before
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</html>Local storm report, Jul 16, 4:41 PM CDT, 4 minutes before
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</html>Special weather statement, Jul 16, 4:45 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 4:06 AM CDT | Heat Advisory | TSA | Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more | 16 hr |
| Jul 16, 4:49 AM CDT | Special Weather Statement | TSA | Cherokee | 26 min |
| Jul 16, 9:58 AM CDT | Special Weather Statement | TSA | Osage | 47 min |
| Jul 16, 10:41 AM CDT | Special Weather Statement | TSA | Osage | 34 min |
| Jul 16, 11:15 AM CDT | Special Weather Statement | TSA | Washington | 30 min |
| Jul 16, 12:10 PM CDT | Special Weather Statement | TSA | Washington | 20 min |
| Jul 16, 1:47 PM CDT | Special Weather Statement | TSA | Mayes | 28 min |
| Jul 16, 2:02 PM CDT | Special Weather Statement | TSA | Delaware | 28 min |
| Jul 16, 2:06 PM CDT | Special Weather Statement | TSA | Haskell | 24 min |
| Jul 16, 2:07 PM CDT | Special Weather Statement | TSA | Latimer | 23 min |
| Jul 16, 2:08 PM CDT | Special Weather Statement | TSA | Ottawa | 37 min |
| Jul 16, 2:11 PM CDT | Special Weather Statement | TSA | Delaware | 49 min |
| Jul 16, 2:27 PM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 30 min |
| Jul 16, 2:31 PM CDT | Special Weather Statement | TSA | Haskell | 44 min |
| Jul 16, 2:35 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, LeFlore | 27 min |
| Jul 16, 2:44 PM CDT | Heat Advisory | TSA | Adair, Cherokee, Choctaw, Creek, Haskell, Latimer and 8 more | 29 hr |
| Jul 16, 3:04 PM CDT | Special Weather Statement | TSA | LeFlore | 41 min |
| Jul 16, 3:09 PM CDT | Special Weather Statement | TSA | Latimer | 51 min |
| Jul 16, 3:10 PM CDT | Special Weather Statement | TSA | LeFlore | 50 min |
| Jul 16, 3:58 PM CDT | Special Weather Statement | TSA | LeFlore | 47 min |
| Jul 16, 4:05 PM CDT | Special Weather Statement | TSA | LeFlore | 40 min |
| Jul 16, 4:46 PM CDT | Special Weather Statement | TSA | Pushmataha | 29 min |
| Jul 16, 5:36 PM CDT | Special Weather Statement | TSA | Pushmataha | 24 min |
| Jul 16, 5:59 PM CDT | Special Weather Statement | TSA | Pushmataha | 31 min |
| Jul 16, 2:41 PM CDT | Special Weather Statement | TSA | Crawford | 49 min |
| Jul 16, 2:52 PM CDT | Special Weather Statement | TSA | Sebastian | 53 min |
| Jul 16, 2:56 PM CDT | Special Weather Statement | TSA | Benton | 49 min |
| Jul 16, 3:24 PM CDT | Special Weather Statement | TSA | Madison | 36 min |
| Jul 16, 3:31 PM CDT | Special Weather Statement | TSA | Benton | 29 min |
| Jul 16, 3:38 PM CDT | Special Weather Statement | TSA | Benton | 52 min |
| Jul 16, 3:44 PM CDT | Areal Flood Advisory | TSA | Benton, Washington | 3 hr |
| Jul 16, 4:14 PM CDT | Special Weather Statement | TSA | Franklin | 31 min |
| Jul 16, 4:31 PM CDT | Special Weather Statement | TSA | Carroll | 59 min |
Nearby
Special Weather Statements in Arkansas, 2018Every special weather statement 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.