WPC FORECAST OPERATIONS BRANCH
MONTHLY RECORD THREAT SCORES
24-HOUR QPF

(NUMBERS IN BOLD ARE ALL TIME RECORDS FOR THAT CATEGORY)

Statistics updated December 1, 2024




Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Day 1 0.50 0.639 0.628 0.579 0.552 0.487 0.391 0.353 0.371 0.459 0.565 0.596 0.655 0.474
2024 2016 2021 2019 2019 2021 2021 2023 2018 2019 2015 2020 2019
1.00 0.542 0.557 0.525 0.467 0.387 0.290 0.251 0.294 0.489 0.531 0.550 0.545 0.366
2013 2020 2012 2018 2019 2021 2021 2017 2008 2015 2015 2023 2015,18
2.00 0.449 0.437 0.433 0.430 0.276 0.213 0.235 0.434 0.491 0.457 0.478 0.426 0.295
2024 2020 2018 2020 2010 2024 2024 2011 2008 2015 2012 2023 2012
3.00 0.352 0.464 0.390 0.299 0.200 0.244 0.227 0.566 0.550 0.525 0.442 0.405 0.294
2009 2015 2008 2020 2019 2022 2008 2011 2017 2010 2012 2015 2017
Day 2 0.50 0.597 0.568 0.508 0.482 0.407 0.309 0.293 0.305 0.420 0.505 0.530 0.594 0.398
2024 2022 2021,22 2018 2017 2021 2021 2023 2017 2019 2011 2020 2019
1.00 0.468 0.488 0.446 0.438 0.275 0.208 0.183 0.254 0.408 0.468 0.497 0.472 0.303
2024 2020 2012 2018 2010 2021 2021 2024 2008 2015 2015 2023 2018
2.00 0.341 0.356 0.361 0.323 0.204 0.138 0.184 0.378 0.376 0.355 0.397 0.356 0.226
2024 2015 2018 2018 2010 2024 2005 2011 2008 2015 2012 2017 2012
Day 3 0.50 0.520 0.544 0.461 0.446 0.376 0.269 0.239 0.255 0.371 0.456 0.489 0.547 0.354
2024 2022 2021 2018 2017 2023 2021 2018 2017 2019 2015 2018 2019
1.00 0.439 0.435 0.400 0.397 0.248 0.148 0.156 0.202 0.347 0.397 0.443 0.435 0.257
2023 2020 2023 2018 2019 2023 2021 2008 2008 2015 2015 2022 2015
2.00 0.380 0.354 0.298 0.343 0.153 0.142 0.149 0.286 0.332 0.264 0.377 0.378 0.180
2020 2015 2018 2020 2010 2020 2005 2011 2017 2015 2012 2017 2017


Alltime Records

Day 1 0.50 0.655 (Dec 2020)
1.00 0.557 (Feb 2020)
2.00 0.491 (Sep 2008)
3.00 0.566 (Aug 2011)
Day 2 0.50 0.594 (Dec 2020)
1.00 0.497 (Nov 2015)
2.00 0.397 (Nov 2012)
Day 3 0.50 0.547 (Dec 2018)
1.00 0.443 (Nov 2015)
2.00 0.380 (Jan 2020)